Mercedes-Benz A-Class Service Bulletins (2022)

206 manufacturer communications on file.

• November 6, 2025•Document ID: 11025544

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  LI68.20-P-080012

  Date Added:

  November 14, 2025

  Manufacturer:

  MERCEDES BENZ

  Summary

  Complaint USB port not functioning properly. Cause Most reported USB port issues are due to improper use or contamination. Note: Any repair costs must be discussed with the customer beforehand. Common external factors identified include: • Fluid intrusion • Broken bushings or physical damage See attachments. Remedy If a component needs replacement without visible external damage, submit a detailed TIPS case. Include information on all connected external devices (e.g., charging cables, USB drives, hard drives).

  Associated Products (67)

  2026 Mercedes-Benz CLA-Class2026 Mercedes-Benz GLA-Class2026 Mercedes-Benz GLB-Class2026 Mercedes-Benz GLC-Class2025 Mercedes-Benz C-Class2025 Mercedes-Benz CLA-Class2025 Mercedes-Benz CLE2025 Mercedes-Benz E-Class2025 Mercedes-Benz EQB-Class2025 Mercedes-Benz G-Class2025 Mercedes-Benz GLA-Class2025 Mercedes-Benz GLB-Class2025 Mercedes-Benz GLC-Class2025 Mercedes-Benz GLE-Class2025 Mercedes-Benz S-Class2024 Mercedes-Benz C-Class2024 Mercedes-Benz CLA-Class2024 Mercedes-Benz CLE2024 Mercedes-Benz E-Class2024 Mercedes-Benz EQB-Class+ 47 more
  Associated Documents

  • DownloadMC-11025544-0001.pdf↗
• October 29, 2025•Document ID: 11024632

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  LI35.31-P-077429

  Date Added:

  October 30, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Instrument cluster message "4MATIC inoperative". The following fault code may be present in all-wheel drive control unit N15/17: P147354 - Erroneous adaptation of the transfer case. The calibration is missing. P14759A - The coupling of the transfer case has malfunctioned. The operating conditions for the component or the system have not been fulfilled. Cause Coupling of the rear axle differential has reached the wear limit or a coupling issue is present. Remedy Please read off the part number of the rear axle differential installed on the vehicle and check the table below to determine if the differential can be repaired with a clutch repair kit. The table below is also in attachments. (If needed, check validity for further clarification of model designations). Complaint Instrument cluster message "4MATIC inoperative". The following fault code may be present in all-wheel drive control unit N15/17: P147354 - Erroneous adaptation of the transfer case. The calibration is missing. P14759A - The coupling of the transfer case has malfunctioned. The operating conditions for the component or the system have not been fulfilled. Cause Coupling of the rear axle differential has reached the wear limit or a coupling issue is present. Remedy Please read off the part number of the rear axle differential installed on the vehicle and check the table below to determine if the differential can be repaired with a clutch repair kit. The table below is also in attachments. (If needed, check validity for further clarification of model designations)

  Associated Products (24)

  2026 Mercedes-Benz CLA-Class2026 Mercedes-Benz GLA-Class2026 Mercedes-Benz GLB-Class2025 Mercedes-Benz CLA-Class2025 Mercedes-Benz GLA-Class2025 Mercedes-Benz GLB-Class2024 Mercedes-Benz CLA-Class2024 Mercedes-Benz GLA-Class2024 Mercedes-Benz GLB-Class2023 Mercedes-Benz CLA-Class2023 Mercedes-Benz GLA-Class2023 Mercedes-Benz GLB-Class2022 Mercedes-Benz A-Class2022 Mercedes-Benz CLA-Class2022 Mercedes-Benz GLA-Class2022 Mercedes-Benz GLB-Class2021 Mercedes-Benz A-Class2021 Mercedes-Benz CLA-Class2021 Mercedes-Benz GLA-Class2021 Mercedes-Benz GLB-Class+ 4 more
  Associated Documents

  • DownloadMC-11024632-0001.pdf↗
• October 10, 2025•Document ID: 11024276

  Service Bulletin/Repair Instructions
  SEATS

  Mfr Comm. #:

  LI91.10-P-078305

  Date Added:

  October 14, 2025

  Manufacturer:

  MERCEDES-MAYBACH

  Summary

  Complaint The "Easy entry and exit feature" function deactivates itself after a brief period. (see attachment). Cause The cause is currently being investigated. Remedy Update the HU7 to the latest software version, then perform a factory reset of the HU7. Steps to perform factory reset: Navigate to Settings > System > Reset > Reset to factory settings and confirm. If the problem persists, please record HU7 log and also a trace of the Body CAN (For Star 2 Body Can 1 and for Star 3 Body Can 2) during the symptom and send via a TIPS case to the Telematics team. Note: Only collect and submit the log and trace if the symptom can be reliably reproduced.

  Associated Products (37)

  2026 Mercedes-Benz GLC-Class2025 Mercedes-Benz C-Class2025 Mercedes-Benz CLA-Class2025 Mercedes-Benz GLB-Class2025 Mercedes-Benz GLC-Class2025 Mercedes-Benz GLE-Class2025 Mercedes-Benz GLS-Class2024 Mercedes-Benz C-Class2024 Mercedes-Benz CLA-Class2024 Mercedes-Benz GLB-Class2024 Mercedes-Benz GLC-Class2024 Mercedes-Benz GLE-Class2024 Mercedes-Benz GLS-Class2023 Mercedes-Benz C-Class2023 Mercedes-Benz CLA-Class2023 Mercedes-Benz GLB-Class2023 Mercedes-Benz GLC-Class2023 Mercedes-Benz GLE-Class2023 Mercedes-Benz GLS-Class2022 Mercedes-Benz A-Class+ 17 more
  Associated Documents

  • DownloadMC-11024276-0001.pdf↗
• October 10, 2025•Document ID: 11024274

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  LI82.62-P-078631

  Date Added:

  October 14, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Clanking noise from the area of the speakers in the doors. Cause Under analysis. Remedy To narrow down the cause, first of all remove the door trim. • If the noise continues to occur even with the door trim removed, then continue the diagnosis working towards the speaker and if necessary, create a TIPS case with an informative video as an attachment. Note: Please refer to this document in the warranty claim and, once diagnosis is completed, select the damage code depending on the component part that is causing the issue. • If the noise stops when the door trim is removed, please proceed in accordance with LI72.10-P-067691. Note: In this case, do not use the damage codes for the speakers in the warranty claim.

  Associated Products (53)

  2026 Mercedes-Benz CLA-Class2025 Mercedes-Benz C-Class2025 Mercedes-Benz CLA-Class2025 Mercedes-Benz E-Class2025 Mercedes-Benz EQB-Class2025 Mercedes-Benz G-Class2025 Mercedes-Benz GLA-Class2025 Mercedes-Benz GLB-Class2025 Mercedes-Benz GLE-Class2025 Mercedes-Benz GLS-Class2025 Mercedes-Benz S-Class2024 Mercedes-Benz C-Class2024 Mercedes-Benz CLA-Class2024 Mercedes-Benz CLE2024 Mercedes-Benz E-Class2024 Mercedes-Benz EQB-Class2024 Mercedes-Benz GLA-Class2024 Mercedes-Benz GLB-Class2024 Mercedes-Benz GLE-Class2024 Mercedes-Benz GLS-Class+ 33 more
  Associated Documents

  • DownloadMC-11024274-0001.pdf↗
• October 6, 2025•Document ID: 11023938

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  LI54.10-P-078888

  Date Added:

  October 6, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint The check engine light illuminates or the 48 V message is displayed in the instrument cluster Cause Fault code "P0A7F00" stored in the 48 V battery G1/3 and/or is current. Remedy Update the 48V battery to SW 25/12 A0019020424 Then perform the following measures: - Switch on ignition - Read out actual value 209 in XENTRY Diagnosis for G1/3 (48 V battery) "State of Health Capacity-SOHC" -- If the value > 80% doesn't require a healing process -- If the value is < 80%, continue with the following steps Carry out capacity healing procedures: - Discharge 48 V battery in vehicle with ignition "On" and check the SOC of the 48 V battery in the workshop menu of the instrument cluster - At SOC <30%: Stop discharge and lock vehicle - with key out of range; (Bus idle) -Charging the 48V battery - When SOC reaches or exceeds 70%, stop charging and lock the vehicle with the key out of range; (bus idle) - After 1.5h bus idle: Switch on ignition Read out actual value 209 in XENTRY Diagnosis in the G1/3 (48 V battery) "State of Health Capacity-SOHC" - SOH > 90%: Procedure is finished and fault memory erased - SOH < 90%: Repeat the steps again. If the value is still too low after 5 repetitions: Abort healing process and open a TIPS case.

  Associated Products (17)

  2026 Mercedes-Benz CLA-Class2025 Mercedes-Benz CLA-Class2025 Mercedes-Benz GLA-Class2024 Mercedes-Benz CLA-Class2024 Mercedes-Benz GLA-Class2023 Mercedes-Benz CLA-Class2023 Mercedes-Benz GLA-Class2022 Mercedes-Benz A-Class2022 Mercedes-Benz CLA-Class2022 Mercedes-Benz GLA-Class2021 Mercedes-Benz A-Class2021 Mercedes-Benz CLA-Class2021 Mercedes-Benz GLA-Class2020 Mercedes-Benz A-Class2020 Mercedes-Benz CLA-Class2020 Mercedes-Benz GLA-Class2019 Mercedes-Benz A-Class
  Associated Documents

  • DownloadMC-11023938-0001.pdf↗
• September 25, 2025•Document ID: 11023347

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  LI54.10-P-071499

  Date Added:

  September 25, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint The result from the XENTRY battery test does not match the current state of the battery. Cause The XENTRY battery tester uses the stored on-board electrical system data in the SAM module to access the health of the 12 volt battery. The XENTRY battery test may not take into account a single discharge event because the SAM or EZS cannot record the data if the battery is discharged. Note: A discharged battery does not necessarily need to be replaced. A discharged battery may be recovered with no permanent damage. Remedy 1) If the battery is discharged, charge the battery. Review WS54.00-P-0037B for minimum charger specifications. • Note the amperage difference between trickle (maintainer) chargers of at least 16A and quick chargers of at least 30A. • Review AP54.10-P-5449U. Note when battery is sufficiently charged the charger current is less 5A. 2) While charging the battery, analyze the vehicle data to determine root cause of discharge using the following data points: • NOTE: For guidance on use of the on-board electrical data please review the AKUBIS video titled "New onboard electrical system diagnosis shown on BR 166". The video can be accessed through WIS by following the path WSM--> content by model series --> passenger cars --> ML-Class --> Model 166 --> group 54 --> New onboard electrical system diagnosis. • Refer to the March 2023 PCTT for the video walkthrough of analysis as well as the attachment of the slides to this Li. • Review GF54.10-P-1012A regarding what can cause deep discharge protection to not end a battery draw. • Review SI54.10-P-0024A for proper maintenance of the vehicle. For Star 2 vehicles: -Review FSAM on-board electrical data conspicuous records • NOTE: This data can be found via FSAM N10/6 -> Actual Values -> On-board electrical system -> On-board electrical system data For Star 3 vehicles: -Review N73/3 EZS on-board electrical data conspicuous records • NOTE: This data can be found via EZS N73/3 -> Actual Values -> On-board electrical system -> On-board electrical system data 3) Determine if root cause is due to: • vehicle technical issue? • customer behavior? NOTE: Recommend using battery analysis sheet found in XiW -> Local Contents -> Diagnostic info -> Battery Discharge Worksheet 4) If battery still does not accept charge AND the vehicle does not fall within the parameters of improper maintenance, then create a TIPS case. *IMPORTANT* - If the improper maintenance/use is found during diagnosis, DO NOT open a TIPS case. If a TIPS case is opened, it will be marked 1 star and directed to your assigned FSE for review. TIPS Case must include with the case: • Amperage setting of charger and time battery was on charger • XENTRY Battery Tester results • Voltage of battery taken with multimeter: Do not connect charger while taking measurements • N10/6 FSAM, (N73 or N73/3) and (N73*1 or N73/3*1) • Workshop analysis of conspicuous data • Root cause analysis for battery discharge based on the above documents (technical, customer, etc.) • NOTE: For expedited results when creating a case write customer complaint as "XENTRY Battery Tester implausible".

  Associated Products (114)

  2026 Mercedes-Benz AMG GT2026 Mercedes-Benz CLA-Class2026 Mercedes-Benz GLC-Class2025 Mercedes-Benz AMG GT2025 Mercedes-Benz C-Class2025 Mercedes-Benz CLA-Class2025 Mercedes-Benz E-Class2025 Mercedes-Benz EQB-Class2025 Mercedes-Benz G-Class2025 Mercedes-Benz GLA-Class2025 Mercedes-Benz GLB-Class2025 Mercedes-Benz GLC-Class2025 Mercedes-Benz GLE-Class2025 Mercedes-Benz GLS-Class2025 Mercedes-Benz S-Class2025 Mercedes-Benz SL-Class2024 Mercedes-Benz AMG GT2024 Mercedes-Benz C-Class2024 Mercedes-Benz CLA-Class2024 Mercedes-Benz CLE+ 94 more
  Associated Documents

  • DownloadMC-11023347-0001.pdf↗
• September 17, 2025•Document ID: 11023193

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  LI27.19-P-072588

  Date Added:

  September 18, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Transmission control unit Y3/8n4 (fully integrated transmission control unit (VGS)) not listed in quick test and/or no communication possible with VGS. Cause Transmission control unit Y3/8n4 Remedy For vehicles with 722.9 transmission: Ensure LI54.15-P-057373 is performed before replacing any component parts. After processing and complying with the above document(s): 1. Perform an ignition reset on Y3/8n4 (VGS) 2. Inspect transmission connector for loose connections, damaged wiring or pins and any other concerns If communication with the VGS cannot be established, the complete valve body ('electrohydraulic controller unit (EHS)') must be replaced. Installation of a VGS repair kit is not permitted in this case as it is not possible to transfer the necessary valve characteristics without communication with the original control unit.

  Associated Products (143)

  2026 Mercedes-Benz AMG GT2025 Mercedes-Benz C-Class2025 Mercedes-Benz E-Class2025 Mercedes-Benz GLA-Class2025 Mercedes-Benz GLB-Class2025 Mercedes-Benz S-Class2025 Mercedes-Benz SL-Class2024 Mercedes-Benz AMG GT2024 Mercedes-Benz C-Class2024 Mercedes-Benz CLA-Class2024 Mercedes-Benz G-Class2024 Mercedes-Benz GLA-Class2024 Mercedes-Benz GLB-Class2024 Mercedes-Benz S-Class2024 Mercedes-Benz SL-Class2023 Mercedes-Benz AMG GT2023 Mercedes-Benz C-Class2023 Mercedes-Benz CLA-Class2023 Mercedes-Benz CLS-Class2023 Mercedes-Benz E-Class+ 123 more
  Associated Documents

  • DownloadMC-11023193-0001.pdf↗
• September 4, 2025•Document ID: 11023026

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  LI82.62-P-077311

  Date Added:

  September 9, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint No audio is output either in radio mode, or with media playback via app, Bluetooth or USB. In such cases, "Playback not active" is shown in the display. Cause Mute line between communication module N112/2 and sound control unit N40/3. Remedy Check the mute cable between control units N112/2 (communication module) and N40/3 (sound system). • Inspect the cable and plug contacts for damage or deformation. • Repair or replace the cable as needed. Important: If any plug contact is found to be deformed, you must also inspect the corresponding connector on the control unit to ensure it is not compromised.

  Associated Products (41)

  2026 Mercedes-Benz GLC-Class2025 Mercedes-Benz C-Class2025 Mercedes-Benz CLA-Class2025 Mercedes-Benz EQB-Class2025 Mercedes-Benz GLA-Class2025 Mercedes-Benz GLB-Class2025 Mercedes-Benz GLC-Class2025 Mercedes-Benz GLE-Class2025 Mercedes-Benz S-Class2024 Mercedes-Benz C-Class2024 Mercedes-Benz CLA-Class2024 Mercedes-Benz EQB-Class2024 Mercedes-Benz GLA-Class2024 Mercedes-Benz GLB-Class2024 Mercedes-Benz GLC-Class2024 Mercedes-Benz GLE-Class2023 Mercedes-Benz C-Class2023 Mercedes-Benz CLA-Class2023 Mercedes-Benz EQB-Class2023 Mercedes-Benz GLA-Class+ 21 more
  Associated Documents

  • DownloadMC-11023026-0001.pdf↗
• September 3, 2025•Document ID: 11023048

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  LI80.50-P-077350

  Date Added:

  September 9, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Customer complains about anti-theft alarm system triggering without obvious cause when the vehicle is parked and/or when entering the vehicle. All MFA2 and 167 derivates with code 882 may be affected. Cause This is caused by a sporadic loss of communication to the anti-theft alarm system [N26/6]. In many instances there are one or more FCs U110D87, U001988, U016787 stored in the control units anti-theft alarm system [N26/6] and/or signal acquisition and actuation module [N10] / [N10/6]. The alarm system memory may contain several alarm sources. Remedy Please process all following points in succession: 1. Initial problem - Power supply of the overhead control panel [N70] - Ground points of the overhead control panel [N70] • Model series 118, 177, 247: W78 • Model series 167: W15/2 • Model series 243: W78/2 - LIN lines between overhead control panel [N70] and alarm siren [H3/1] - CAN lines between overhead control panel [N70] and signal acquisition and actuation module [N10] or [N10/6] - Delete fault memory and recheck vehicle Note - If wiring fault is found in newer vehicle, please send in a IFQ (Initial Field Quality) TIPS Case. 2. Subsequent problem after repair In this case, the workshop must perform the following operation steps: - Replace overhead control panel [N70] (anti-theft alarm system [N26/6] is integrated) - Clean electrical connectors of overhead control panel with commercially available contact cleaner and clean, purified compressed air. - Delete fault memory and recheck vehicle Note - If no remedy is found, please open a TIPS case and send to the Body/Chassis/Entertainment inbox.

  Associated Products (31)

  2025 Mercedes-Benz CLA-Class2025 Mercedes-Benz EQB-Class2025 Mercedes-Benz GLA-Class2025 Mercedes-Benz GLB-Class2025 Mercedes-Benz GLE-Class2024 Mercedes-Benz CLA-Class2024 Mercedes-Benz EQB-Class2024 Mercedes-Benz GLA-Class2024 Mercedes-Benz GLB-Class2024 Mercedes-Benz GLE-Class2023 Mercedes-Benz CLA-Class2023 Mercedes-Benz EQB-Class2023 Mercedes-Benz GLA-Class2023 Mercedes-Benz GLB-Class2023 Mercedes-Benz GLE-Class2022 Mercedes-Benz A-Class2022 Mercedes-Benz CLA-Class2022 Mercedes-Benz EQB-Class2022 Mercedes-Benz GLA-Class2022 Mercedes-Benz GLB-Class+ 11 more
  Associated Documents

  • DownloadMC-11023048-0001.pdf↗
• September 3, 2025•Document ID: 11022909

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  LI54.25-P-079602

  Date Added:

  September 8, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint The Dynamic or Park Camera button in the LCP is stuck or does not react. Cause In rare cases, tension between the component parts of the LCP and trim of the center console could result in the buttons sticking. Remedy Remove LCP and reinstall while ensuring it is free of any tension. Replacement is not necessary.

  Associated Products (21)

  2025 Mercedes-Benz CLA-Class2025 Mercedes-Benz GLA-Class2025 Mercedes-Benz GLB-Class2024 Mercedes-Benz CLA-Class2024 Mercedes-Benz GLA-Class2024 Mercedes-Benz GLB-Class2023 Mercedes-Benz CLA-Class2023 Mercedes-Benz GLA-Class2023 Mercedes-Benz GLB-Class2022 Mercedes-Benz A-Class2022 Mercedes-Benz CLA-Class2022 Mercedes-Benz GLA-Class2022 Mercedes-Benz GLB-Class2021 Mercedes-Benz A-Class2021 Mercedes-Benz CLA-Class2021 Mercedes-Benz GLA-Class2021 Mercedes-Benz GLB-Class2020 Mercedes-Benz A-Class2020 Mercedes-Benz CLA-Class2020 Mercedes-Benz GLB-Class+ 1 more
  Associated Documents

  • DownloadMC-11022909-0001.pdf↗
• August 7, 2025•Document ID: 11022048

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  LI27.60-P-071321

  Date Added:

  August 21, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Transmission limp-home mode with fault message in IC "Gear Change to R Not Possible", the even gears are locked. The concern of transmission limp-home mode disappears after the ignition is switched off and on again. P092500 The shift valve of the hollow shaft has a malfunction. _ is present in the DKG Control Unit (Y3/14n4), and the extended freeze frame data shows hex code 25 F2 (see attachments for reference) Cause Hydraulic fault caused by the transmission software. The engagement of 2nd gear by preselection after 4-3 downshift does not function due to activation fault. Remedy Check the transmission software level and follow the steps below: You can use the EEPROM as txt file for Program version (see attachments for reference) 18a software: Flash transmission control unit Y3/14nY with latest software using Xentry, version 09/2021 or 12/2021 and all add-ons (except model designations 118.351, 118.651, 177.051, 177.151, 177.951); delete fault memory. 18b software: Flash transmission control unit Y3/14nY with latest software using Xentry, version 12/2023 and all add-ons If there is no software available for the DKG Control Unit, or the concern is still present after the software update: Please submit a TIPS case to the Powertrain Inbox and include the following information: - Initial Quick Test w/ Freeze Frame Data - DKG Control Unit Log - Guided Test result for P092500 - Initial EEPROM (before performing any adaptations) - Current EEPROM data

  Associated Products (17)

  2025 Mercedes-Benz CLA-Class2025 Mercedes-Benz GLB-Class2024 Mercedes-Benz CLA-Class2024 Mercedes-Benz GLB-Class2023 Mercedes-Benz CLA-Class2023 Mercedes-Benz GLB-Class2022 Mercedes-Benz A-Class2022 Mercedes-Benz CLA-Class2022 Mercedes-Benz GLB-Class2021 Mercedes-Benz A-Class2021 Mercedes-Benz CLA-Class2021 Mercedes-Benz GLB-Class2020 Mercedes-Benz A-Class2020 Mercedes-Benz CLA-Class2020 Mercedes-Benz GLB-Class2019 Mercedes-Benz A-Class2019 Mercedes-Benz CLA-Class
  Associated Documents

  • DownloadMC-11022048-0001.pdf↗
• August 5, 2025•Document ID: 11022045

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  LI27.00-P-077141

  Date Added:

  August 21, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Customer complaints regarding automatic transmission 724.1 (8FDCT & 8FDCT hybrid) For faster, more effective and more targeted diagnosis, Intelligent Predictive Repair (IPR) has been developed and integrated into XENTRY Diagnosis. This ensures an automated diagnosis process. Complaint Customer complaints regarding automatic transmission 724.1 (8FDCT & 8FDCT hybrid) For faster, more effective and more targeted diagnosis, Intelligent Predictive Repair (IPR) has been developed and integrated into XENTRY Diagnosis. This ensures an automated diagnosis process. Complaint Customer complaints regarding automatic transmission 724.1 (8FDCT & 8FDCT hybrid) For faster, more effective and more targeted diagnosis, Intelligent Predictive Repair (IPR) has been developed and integrated into XENTRY Diagnosis. This ensures an automated diagnosis process.

  Associated Products (42)

  2025 Mercedes-Benz CLA-Class2025 Mercedes-Benz GLA-Class2025 Mercedes-Benz GLB-Class2024 Mercedes-Benz CLA-Class2024 Mercedes-Benz GLA-Class2024 Mercedes-Benz GLB-Class2023 Mercedes-Benz CLA-Class2023 Mercedes-Benz GLA-Class2023 Mercedes-Benz GLB-Class2022 Mercedes-Benz A-Class2022 Mercedes-Benz CLA-Class2022 Mercedes-Benz GLA-Class2022 Mercedes-Benz GLB-Class2021 Mercedes-Benz A-Class2021 Mercedes-Benz CLA-Class2021 Mercedes-Benz GLA-Class2021 Mercedes-Benz GLB-Class2020 Mercedes-Benz A-Class2020 Mercedes-Benz CLA-Class2020 Mercedes-Benz GLA-Class+ 22 more
  Associated Documents

  • DownloadMC-11022045-0001.pdf↗
• August 1, 2025•Document ID: 11022052

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  LI54.10-P-078888

  Date Added:

  August 21, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint The check engine light illuminates or the 48 V message is displayed in the instrument cluster Cause Fault code "P0A7F00" stored in the 48 V battery G1/3 and/or is current. Remedy Update the 48V battery to SW 25/12 A0019020424 Then perform the following measures: - Switch on ignition - Read out actual value 209 in XENTRY Diagnosis for G1/3 (48 V battery) "State of Health Capacity-SOHC" -- If the value > 80% doesn't require a healing process -- If the value is < 80%, continue with the following steps Carry out capacity healing procedures: - Discharge 48 V battery in vehicle with ignition "On" and check the SOC of the 48 V battery in the workshop menu of the instrument cluster - At SOC <30%: Stop discharge and lock vehicle - with key out of range; (Bus idle) - After 1.5h bus idle: Switch on ignition Read out actual value 209 in XENTRY Diagnosis in the G1/3 (48 V battery) "State of Health Capacity-SOHC" - SOH > 90%: Procedure is finished and fault memory erased - SOH < 90%: Repeat the steps again. If the value is still too low after 5 repetitions: Abort healing process and open a TIPS case.

  Associated Products (21)

  2025 Mercedes-Benz CLA-Class2025 Mercedes-Benz GLA-Class2025 Mercedes-Benz GLB-Class2024 Mercedes-Benz CLA-Class2024 Mercedes-Benz GLA-Class2024 Mercedes-Benz GLB-Class2023 Mercedes-Benz CLA-Class2023 Mercedes-Benz GLA-Class2023 Mercedes-Benz GLB-Class2022 Mercedes-Benz A-Class2022 Mercedes-Benz CLA-Class2022 Mercedes-Benz GLA-Class2022 Mercedes-Benz GLB-Class2021 Mercedes-Benz A-Class2021 Mercedes-Benz CLA-Class2021 Mercedes-Benz GLA-Class2021 Mercedes-Benz GLB-Class2020 Mercedes-Benz A-Class2020 Mercedes-Benz CLA-Class2020 Mercedes-Benz GLB-Class+ 1 more
  Associated Documents

  • DownloadMC-11022052-0001.pdf↗
• August 1, 2025•Document ID: 11021148

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  LI54.10-P-078888

  Date Added:

  August 1, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint The check engine light illuminates or the 48 V message is displayed in the instrument cluster Cause Fault code "P0A7F00" stored in the 48 V battery G1/3 and/or is current. Remedy Update the 48V battery to SW 25/12 A0019020424

  Associated Products (21)

  2025 Mercedes-Benz CLA-Class2025 Mercedes-Benz GLA-Class2025 Mercedes-Benz GLB-Class2024 Mercedes-Benz CLA-Class2024 Mercedes-Benz GLA-Class2024 Mercedes-Benz GLB-Class2023 Mercedes-Benz CLA-Class2023 Mercedes-Benz GLA-Class2023 Mercedes-Benz GLB-Class2022 Mercedes-Benz A-Class2022 Mercedes-Benz CLA-Class2022 Mercedes-Benz GLA-Class2022 Mercedes-Benz GLB-Class2021 Mercedes-Benz A-Class2021 Mercedes-Benz CLA-Class2021 Mercedes-Benz GLA-Class2021 Mercedes-Benz GLB-Class2020 Mercedes-Benz A-Class2020 Mercedes-Benz CLA-Class2020 Mercedes-Benz GLB-Class+ 1 more
  Associated Documents

  • DownloadMC-11021148-0001.pdf↗
• July 29, 2025•Document ID: 11021150

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  LI54.30-P-071086

  Date Added:

  August 1, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint After a software update for instrument cluster (IC) control unit (N133/1) is performed the following customer complaints may be noted: - One or more menu selections (navigation, AMG, etc.) are missing from the instrument cluster display - The menu icons are present but the functionality does not appear in instrument cluster display after it is selected Cause - Communication between the instrument cluster control unit (N133/1) and the multifunction display (A40/16) - Incorrect instrument cluster control unit (N133/1) SCN coding Note: Some instrument cluster menu options are dependent on option code (i.e. the navigation menu option will only be present on vehicles equipped with navigation, code 365). Before Before beginning diagnosis, ensure that the vehicle is equipped with the accompanying option code Remedy If the first complaint is noted: - Perform a circuit 30 reset of the MBUX multimedia system (A26/17), the instrument cluster control unit (N133/1), and the multifunction display (A40/16). I.e. disconnect the control units from power simultaneously for 1 hour, or disconnect the ground cable for the 12V battery for 1 hour - If the above step does not remedy the complaint, perform initial start-up of the instrument cluster control unit (N133/1) with Xentry diagnosis software release 12/2019 and addon 14970 or newer - If the above steps do not remedy the complaint, perform initial start-up of the MBUX multimedia system (A26/17). Then perform a factory reset of the head unit (Settings -> System -> Reset) If the second complaint is noted: - SCN code the instrument cluster control unit (N133/1)

  Associated Products (33)

  2025 Mercedes-Benz CLA-Class2025 Mercedes-Benz GLA-Class2025 Mercedes-Benz GLB-Class2025 Mercedes-Benz GLE-Class2025 Mercedes-Benz GLS-Class2024 Mercedes-Benz CLA-Class2024 Mercedes-Benz GLA-Class2024 Mercedes-Benz GLB-Class2024 Mercedes-Benz GLE-Class2024 Mercedes-Benz GLS-Class2023 Mercedes-Benz CLA-Class2023 Mercedes-Benz GLA-Class2023 Mercedes-Benz GLB-Class2023 Mercedes-Benz GLE-Class2023 Mercedes-Benz GLS-Class2022 Mercedes-Benz A-Class2022 Mercedes-Benz CLA-Class2022 Mercedes-Benz GLA-Class2022 Mercedes-Benz GLB-Class2022 Mercedes-Benz GLE-Class+ 13 more
  Associated Documents

  • DownloadMC-11021150-0001.pdf↗
• July 25, 2025•Document ID: 11021107

  Service Bulletin/Repair Instructions
  SUSPENSION

  Mfr Comm. #:

  LI32.25-P-070053

  Date Added:

  July 31, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint There may be creaking noises when steering while stationary or driving slowly. See "Sound Example" attachment. Cause The vehicle level of the front axle may be too low. The noises when steering can be caused by continuous contact of the end stop buffer with the damper tube. Remedy IMPORTANT: Do not apply document to vehicles outside of the listed validity range. The vehicle level must first be measured using the romess inclinometer (follow WIS instructions!) and the measured values should be compared with the target values in the Wheel Alignment online tool. If the vehicle level is out of tolerance, then the springs on the front axle must be replaced in order to correct the level. The currently installed springs can be pulled up in the XENTRY Parts Information tool through the corresponding selection. How to identify currently installed springs: • Check for colored dots on the front springs. • If no dots or color markings, please check if there is a parts label that is affixed to the spring. If the MB part number is listed, continue with process listed in the paragraph below. • If the part label does not contain an MB part number, is missing or illegible, please check for a barcode label with a 3 digit number. See "Spring Barcode" picture for example. Open a TIPS case with this number and list that it is from the barcode attached to the currently installed spring. • If none of the above references can be found, open a TIPS case. How to identify next spring in line with color dots: • Navigate to the parts catalog and enter the vehicle VIN/FIN. • Navigate to group 32 sub-group 054 (front spring strut) and find the spring. The spring listed in the parts catalog will have a "color marking" indicator. If the dots on the spring and the color listed in the parts catalog is the same then you have the part number of the currently installed spring. If it does not, then you need to clear the vehicle specific filter by using the funnel icon on the right side column of the page and clicking "no filter" at the top and then "apply filter" (see "Clear Vehicle EPC Filter" for how-to pictures). Proceed to finding the spring that matches the color dots on the vehicles currently installed spring. • In order to find the correct or next highest spring, the spring filter must be removed in the XENTRY Parts Information tool. • The spring item numbers are normally listed in sequence (observe and verify valid SA code for vehicle). The next strongest spring is selected by the ascending, next highest item number (Example: If the currently installed spring ends in "13 00" then then next spring in line is "14 00".) How to identify next spring in line with part number tag: • Navigate to the parts catalog and enter the vehicle VIN/FIN and the part number found from the spring. • In order to find the correct or next highest spring, the spring filter must be removed in the XENTRY Parts Information tool. To do this, you need to clear the filters by using the funnel icon on the right side column of the page and clicking "no filter" at the top and then "apply filter" (see "Clear Vehicle EPC Filter" for how-to pictures). • The spring item numbers are normally listed in sequence (observe and verify valid SA code for vehicle). The next strongest spring is selected by the ascending, next highest item number (Example: If the currently installed spring ends in "13 00" then then next spring in line is "14 00".)

  Associated Products (21)

  2025 Mercedes-Benz CLA-Class2025 Mercedes-Benz EQB-Class2025 Mercedes-Benz GLA-Class2025 Mercedes-Benz GLB-Class2024 Mercedes-Benz CLA-Class2024 Mercedes-Benz EQB-Class2024 Mercedes-Benz GLA-Class2024 Mercedes-Benz GLB-Class2023 Mercedes-Benz CLA-Class2023 Mercedes-Benz EQB-Class2023 Mercedes-Benz GLA-Class2023 Mercedes-Benz GLB-Class2022 Mercedes-Benz A-Class2022 Mercedes-Benz CLA-Class2022 Mercedes-Benz EQB-Class2022 Mercedes-Benz GLA-Class2022 Mercedes-Benz GLB-Class2021 Mercedes-Benz A-Class2021 Mercedes-Benz CLA-Class2021 Mercedes-Benz GLA-Class+ 1 more
  Associated Documents

  • DownloadMC-11021107-0001.pdf↗
• June 24, 2025•Document ID: 11019750

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  LI82.60-P-079463

  Date Added:

  June 26, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint The head unit cannot be operated via the steering wheel buttons on the right side. Cause A26/17 - MBUX multimedia system (head unit) software Remedy Update the A26/17 - MBUX multimedia system (head unit) to newest/latest software. Then recommission steering wheel electronics N135 - steering wheel electronics (LRE). If the problem is still present, please create a TIPS case. Note: Please do not replace any parts.

  Associated Products (34)

  2025 Mercedes-Benz EQB-Class2025 Mercedes-Benz GLA-Class2025 Mercedes-Benz GLB-Class2025 Mercedes-Benz GLE-Class2025 Mercedes-Benz GLS-Class2024 Mercedes-Benz CLA-Class2024 Mercedes-Benz EQB-Class2024 Mercedes-Benz GLA-Class2024 Mercedes-Benz GLB-Class2024 Mercedes-Benz GLE-Class2024 Mercedes-Benz GLS-Class2023 Mercedes-Benz CLA-Class2023 Mercedes-Benz EQB-Class2023 Mercedes-Benz GLA-Class2023 Mercedes-Benz GLB-Class2023 Mercedes-Benz GLE-Class2023 Mercedes-Benz GLS-Class2022 Mercedes-Benz A-Class2022 Mercedes-Benz CLA-Class2022 Mercedes-Benz EQB-Class+ 14 more
  Associated Documents

  • DownloadMC-11019750-0001.pdf↗
• June 17, 2025•Document ID: 11019746

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  LI00.01-P-078887

  Date Added:

  June 26, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint The intent of this document is to provide workshops with helpful technical reference language. • Commonly used acronyms in LI's and TIPS cases. • Control unit names, numbers, and how to identify. • Network/wiring architecture groups to baumuster quick reference. • Platform to baumuster quick reference. Cause Information only Remedy Acronyms: • AV = Actual Values • CU = Control Unit • CUL = Control Unit Log • DTC = Diagnostic Trouble Code • E-Stand = Fresh-up head unit boot software (found in head unit control unit log) • FUP = Fresh-up • FW = Firmware • HSVL = High Speed Video Line • HU = Head Unit • HW = Hardware • IPD = Injector Performance Data • ISU = Initial Start Up • LVDS = Low Voltage Differential Signal • NSFT = Not Safe For Transport • MOPF = Model Facelift (Ex: 167 MOPF) • PiH = Plug-in Hybrid • P3 Hybrid = AMG Plug-in Hybrid with rear drive unit • SA Code = Sonderausstattungscode (Option Code) • SCN = Software Calibration Number SW = Software • TCU = Telecommunication Control Unit (Hermes/Ramses/Etc...) • QT = Quicktest • XD = XENTRY Diagnosis Control Unit Identification: Refer to the attachment "Control Unit Nomenclature" for location of each. • Control Unit Name • Control Unit Number • Control Unit Short name • Control Unit Diogenes ("dy-oj-uh-neez") name - Control unit variant/family. Network/Wiring Architecture to Baumuster Quick Reference: MFA = "Mercedes-Benz Frontwheel Architecture" • 117 • 156 • 246 MFA2 = "Mercedes-Benz Frontwheel Architecture - Generation 2" • 118 • 177 • 243 • 247 EVA1.5 = "Electric Vehicle Architecture" • 243 EVA2 = "Electric Vehicle Architecture - Generation 2" • 294 • 295 • 296 • 297 MSA = "Mercedes-Benz Sport Architecture" • 192 • 232 MMA = "Mercedes-Benz Modular Architecture" • 174 Star 1 • 117, 156, 246 (MFA) • 166, 176, 221, 242, 246, 292 Star 2 • 205, 213, 238, 253, 257, 290 (MRA) • 117, 156, 246 (MFA) • 118, 177, 243, 247 (MFA2) • 167, 222, 292, 463, 465, 906 Star 3 • 294, 295, 296, 297 (EVA2) • 206, 214, 223, 236, 254 (MRA2) • 192 and 232 (MSA) • 907 Platform to Baumuster Quick Reference: MRA = "Mercedes-Benz Rearwheel Architecture": • 205 • 213 • 222 • 238 • 253 • 257 • 290 MRA2 = "Mercedes-Benz Rearwheel Architecture - Generation 2": • 206 • 214 • 223 • 236 • 254 MFA = "Mercedes-Benz Frontwheel Architecture" • 117 • 156 • 246 MFA2 = "Mercedes-Benz Frontwheel Architecture - Generation 2" • 118 • 177 • 243 • 247 EVA1.5 = "Electric Vehicle Architecture" • 243 EVA2 = "Electric Vehicle Architecture - Generation 2" • 294 • 295 • 296 • 297 MSA = "Mercedes-Benz Sport Architecture" • 192 • 232 MMA = "Mercedes-Benz Modular Architecture" • 174

  Associated Products (30)

  2025 Mercedes-Benz AMG GT2025 Mercedes-Benz C-Class2025 Mercedes-Benz E-Class2025 Mercedes-Benz GLE-Class2024 Mercedes-Benz AMG GT2024 Mercedes-Benz C-Class2024 Mercedes-Benz CLA-Class2024 Mercedes-Benz E-Class2023 Mercedes-Benz C-Class2023 Mercedes-Benz CLA-Class2023 Mercedes-Benz E-Class2022 Mercedes-Benz A-Class2022 Mercedes-Benz C-Class2022 Mercedes-Benz CLA-Class2022 Mercedes-Benz E-Class2021 Mercedes-Benz A-Class2021 Mercedes-Benz AMG GT2021 Mercedes-Benz CLA-Class2021 Mercedes-Benz E-Class2020 Mercedes-Benz A-Class+ 10 more
  Associated Documents

  • DownloadMC-11019746-0001.pdf↗
• May 30, 2025•Document ID: 11018714

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  LI82.85-P-079088

  Date Added:

  May 30, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint The following most common complaints may be observed: • Brief connectivity interruptions when using Apple CarPlay over Wi-Fi • Audio cuts out • Device not recognized • No operation possible Cause There are multiple possible causes for an iPhone disconnecting from a vehicle’s head unit while using Apple CarPlay. These include hardware, software, and environmental factors: Environmental Interference External Sources: • Passing under toll bridges, driving near airports, or areas with heavy electronic interference (e.g., as described in LI82.85-P-076157) can cause connection drops. Cellular Networks: • Interference from nearby cell towers operating on similar frequencies (usually 2.4GHz or 5GHz) can disrupt the signal. Storage Location: • Keeping your phone in a handbag or surrounded by other objects inside the vehicle can create physical or electronic interference. Device and Software Issues Head Unit Software/Hardware: • Outdated firmware, bugs, or hardware faults in the vehicle’s head unit can prevent a stable connection. iPhone Software/Hardware: • Similar issues in the iPhone, including buggy iOS updates or hardware problems, may affect performance. Reset or Reboot: • Automatic rebooting or resetting of either the head unit or the iPhone will temporarily disrupt CarPlay. Connection and Settings Wired Connections: • Faulty Cable: A damaged or poor-quality USB cable can cause intermittent or total loss of connection. • USB Port Issues: Dust, debris, or physical damage in the USB port of either the head unit or the iPhone can also lead to disconnects. Wireless Connections: • Intermittent Bluetooth/Wi-Fi: Unstable wireless communication (Bluetooth/Wi-Fi) can frequently break the Car- Play connection. Power Management: • Battery Saver Mode: Enabling low power mode may restrict background processes, affecting CarPlay. • Vehicle’s Electrical System: Unstable power delivery from the car’s battery or electrical interruptions can cause the head unit to malfunction. Phone & App Configuration Phone Settings: • Incorrect or conflicting settings (especially Bluetooth or Wi-Fi) on your iPhone can interfere with the CarPlay link. • Third-Party Apps/Profiles: • Installed apps or configuration profiles may conflict with CarPlay’s operation. • Native apps are apple maps, apple music, audio books, apple news, podcasts, messages and phone. All other apps are considered third party apps. App Conflicts: • Running conflicting apps that require similar system resources as CarPlay can cause instability. Mobile Data Plan: • Streaming from online sources without sufficient mobile data can result in lost connectivity. Other Factors Heat & Overheating: • If either the phone or the head unit overheats, they may disable certain functions to prevent damage, leading to disconnection. User Actions: • Accidentally disconnecting the device in settings, or physically moving or bumping the phone or cable, may disrupt the connection. Remedy Guided Diagnostic Path for Apple CarPlay Connection Issues Please follow the steps below to systematically diagnose and resolve CarPlay concerns: Update Devices: • Ensure the iPhone is updated to the latest available iOS version. • Ensure the vehicle’s head unit is updated to the latest software version available. Isolate the Issue: • Check whether the symptom persists with another iPhone running the latest iOS version. • Test both wireless and wired CarPlay connections: • Does the issue only occur with wireless CarPlay?

  Associated Products (27)

  2025 Mercedes-Benz C-Class2025 Mercedes-Benz GLC-Class2025 Mercedes-Benz S-Class2025 Mercedes-Benz SL-Class2024 Mercedes-Benz C-Class2024 Mercedes-Benz GLC-Class2024 Mercedes-Benz S-Class2024 Mercedes-Benz SL-Class2023 Mercedes-Benz C-Class2023 Mercedes-Benz GLC-Class2023 Mercedes-Benz S-Class2023 Mercedes-Benz SL-Class2022 Mercedes-Benz A-Class2022 Mercedes-Benz C-Class2022 Mercedes-Benz GLC-Class2022 Mercedes-Benz S-Class2022 Mercedes-Benz SL-Class2021 Mercedes-Benz A-Class2021 Mercedes-Benz C-Class2021 Mercedes-Benz GLC-Class+ 7 more
  Associated Documents

  • DownloadMC-11018714-0001.pdf↗
• May 30, 2025•Document ID: 11019016

  Other
  ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM

  Mfr Comm. #:

  CL - 05012025

  Date Added:

  June 3, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  In our continuing efforts to ensure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz USA is extending the warranty coverage for the Diagnostic Module for Tank Leakage detection (“DMTL”) on your vehicle from the original New Vehicle Limited Warranty of 4 years / 50,000 miles to 15 years/150,000 miles (whichever occurs first). This applies to the vehicle regardless of ownership.

  Associated Products (81)

  2025 Mercedes-Benz C-Class2024 Mercedes-Benz C-Class2023 Mercedes-Benz AMG GT2023 Mercedes-Benz C-Class2023 Mercedes-Benz CLA-Class2023 Mercedes-Benz CLS-Class2023 Mercedes-Benz E-Class2023 Mercedes-Benz G-Class2023 Mercedes-Benz GLA-Class2023 Mercedes-Benz GLB-Class2023 Mercedes-Benz GLC-Class2023 Mercedes-Benz GLE-Class2023 Mercedes-Benz GLS-Class2023 Mercedes-Benz S-Class2023 Mercedes-Benz SL-Class2022 Mercedes-Benz A-Class2022 Mercedes-Benz AMG GT2022 Mercedes-Benz C-Class2022 Mercedes-Benz CLA-Class2022 Mercedes-Benz CLS-Class+ 61 more
  Associated Documents

  • DownloadMC-11019016-0001.pdf↗