Mercedes-Benz GLA-Class Service Bulletins (2023)

215 manufacturer communications on file.

• 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: 11021149

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  LI54.21-P-078926

  Date Added:

  August 1, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Check engine light comes on when driving/starting the vehicle. No drivability concerns. Cause SW conflict of the 48V battery Remedy Update the 48V battery to SW 25/12 A0019020424

  Associated Products (17)

  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 CLA-Class2022 Mercedes-Benz GLA-Class2022 Mercedes-Benz GLB-Class2021 Mercedes-Benz CLA-Class2021 Mercedes-Benz GLA-Class2021 Mercedes-Benz GLB-Class2020 Mercedes-Benz CLA-Class2020 Mercedes-Benz GLB-Class
  Associated Documents

  • DownloadMC-11021149-0001.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↗
• August 1, 2025•Document ID: 11021142

  Service Bulletin/Repair Instructions
  SERVICE BRAKES

  Mfr Comm. #:

  LI42.10-P-063502

  Date Added:

  August 1, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Noises/ squealing from the service brake in various driving situations and ambient conditions. Cause Frictional vibrations Remedy The intent of this document is to reduce or eliminate noise from high performance AMG brakes. AMG brakes are designed for performance under high load and in certain scenarios, can emit noise. Some of the scenarios are: • Driving style • Brake pressure and application style (stop-and-go traffic with consistent low brake pressure “riding brakes” where the brakes cannot cool sufficiently between applications). • Ambient temperatures 1. Beginning Diagnostics: a) Check whether the complaint can be reproduced and at which axle or side the noises occur (ideally together with the customer while driving). b) Check the affected system for component wear, mechanical damage or localized overheating damage. Replace damaged components as necessary. c) Assess condition of brake rotors and pads per WIS and visually (i.e. long periods of stagnation, etc...). d) Clean brake components free of brake dust and debris. d) Secure vehicle on a lift. 1. Start the engine and depress the brake pedal 3-4 times. 2. Check each wheel to see if they turn freely by hand. 3. If a wheel is not turning freely by hand, this needs to be addressed prior to re-assessing the noise concern. e) Check whether, apart from this document, an additional document exists for the specific model in question, and if so, work through it and then continue. 2. Specific Axle Work: NOTE: If the brake pad has a metal backing plate, there is no need to affix the adhesive film. Continue with applying chamfer and Molykote as instructed below. IMPORTANT: Be absolutely certain to not allow paste between friction surfaces of the pad and disc! a) If the noises are coming from the front axle. 1. Remove brake linings of front axle. 2. Clean all contact points on brake lining backing plate, including the brake lining guide pins and brake caliper/carrier. 3. Clean bonding surface (where pistons contact back of brake pad). Apply adhesive film to the backplate of the piston-side brake lining where the piston contacts the pad backing plate. See picture "Adhesive and Paste Application Area". 4. Be sure to remove both brown paper backing sides of the adhesive film, it is double sided adhesive film. 5. If adhesive is already installed on backing plate where pistons contact the back of the pad, you may gently scrape off and re-apply a new adhesive or Molykote. Must not apply the Molykote on top of the adhesive. 6. Chamfer edges (gently round off sharp leading edges) on brake pads. Some pads have vertical grooves, these can be gently chamfered with a triangular file as well. See picture "Chamfering Technique". 7. Apply Molykote to the sides of the backing plate. See picture "Adhesive and Paste Application Area". 8. After installing the brake linings, actuate the brake for 30 seconds. b) If the noises are coming from the rear axle. 1. Remove brake pads of rear axle. 2. Clean all contact points on brake lining backing plate and brake caliper/carrier. 3. Clean bonding surface (where pistons contact back of brake pad). Apply adhesive film to the backplate of the piston-side brake lining. 4. Chamfer edges (round off sharp leading edges) on brake pads. See picture "Chamfering Technique". 5. Grease contact points (red areas on attachment "Rear Pad Grease Area") between brake lining and guide of brake caliper with Molykote. 3. Brake Bedding Process: a) Before trip, the mileage incurred must be clarified with the customer (approx. 30 miles). b) Select a suitable route so speeds of approximately 65 MPH can be achieved. c) If the vehicle is an AMG P3 Hybrid, switch off recouperation prior to bedding in brakes. d) Brake the vehicle 15 times with a brake pressure of approx. 30 bar (have the passenger read it out using XENTRY) from 62 MPH to 30 MPH (no emergency stops and no braking in the ESP control range). Maintain a cooling distance of approx. 1 mile between brake application

  Associated Products (105)

  2025 Mercedes-Benz AMG GT2025 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 GLA-Class2024 Mercedes-Benz GLB-Class2024 Mercedes-Benz GLC-Class2024 Mercedes-Benz S-Class2024 Mercedes-Benz SL-Class2023 Mercedes-Benz AMG GT2023 Mercedes-Benz C-Class2023 Mercedes-Benz CLA-Class2023 Mercedes-Benz GLA-Class2023 Mercedes-Benz GLB-Class2023 Mercedes-Benz GLC-Class2023 Mercedes-Benz SL-Class+ 85 more
  Associated Documents

  • DownloadMC-11021142-0001.pdf↗
• July 30, 2025•Document ID: 11021144

  Service Bulletin/Repair Instructions
  STEERING

  Mfr Comm. #:

  LI46.35-P-075129

  Date Added:

  August 1, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Vibrations in steering at speeds lower than 50 km/h when turning left and right or while at a stop. May be perceived as a noise from the transmission. Cause Controller instability of steering software, caused by reduced friction in steering (tolerance for production + running-in characteristics). Remedy Update Electrical Power Steering Control Unit (N68) to target software A 247 902 11 16 available in Xentry with latest add-ons.

  Associated Products (16)

  2025 Mercedes-Benz GLA-Class2025 Mercedes-Benz GLB-Class2024 Mercedes-Benz GLA-Class2024 Mercedes-Benz GLB-Class2023 Mercedes-Benz CLA-Class2023 Mercedes-Benz GLA-Class2023 Mercedes-Benz GLB-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-Class
  Associated Documents

  • DownloadMC-11021144-0001.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↗
• July 25, 2025•Document ID: 11021141

  Service Bulletin/Repair Instructions
  SERVICE BRAKES

  Mfr Comm. #:

  LI42.10-P-063502

  Date Added:

  August 1, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Noises/ squealing from the service brake in various driving situations and ambient conditions. Cause Frictional vibrations Remedy The intent of this document is to reduce or eliminate noise from high performance AMG brakes. AMG brakes are designed for performance under high load and in certain scenarios, can emit noise. Some of the scenarios are: • Driving style • Brake pressure and application style (stop-and-go traffic with consistent low brake pressure “riding brakes” where the brakes cannot cool sufficiently between applications). • Ambient temperatures 1. Beginning Diagnostics: a) Check whether the complaint can be reproduced and at which axle or side the noises occur (ideally together with the customer while driving). b) Check the affected system for component wear, mechanical damage or localized overheating damage. Replace damaged components as necessary. c) Assess condition of brake rotors and pads per WIS and visually (i.e. long periods of stagnation, etc...). d) Clean brake components free of brake dust and debris. d) Secure vehicle on a lift. 1. Start the engine and depress the brake pedal 3-4 times. 2. Check each wheel to see if they turn freely by hand. 3. If a wheel is not turning freely by hand, this needs to be addressed prior to re-assessing the noise concern. e) Check whether, apart from this document, an additional document exists for the specific model in question, and if so, work through it and then continue. 2. Specific Axle Work: NOTE: If the brake pad has a metal backing plate, there is no need to affix the adhesive film. Continue with applying chamfer and brake paste as instructed below. IMPORTANT: Be absolutely certain to not allow paste between friction surfaces of the pad and disc! a) If the noises are coming from the front axle. 1. Remove brake linings of front axle. 2. Clean all contact points on brake lining backing plate, including the brake lining guide pins and brake caliper/carrier. 3. Clean bonding surface (where pistons contact back of brake pad). Apply adhesive film to the backplate of the piston-side brake lining where the piston contacts the pad backing plate. See picture "Adhesive and Paste Application Area". If adhesive is already installed on backing plate, you may gently scrape off and re-apply a new adhesive. In some instances the adhesive may be very carefully removed and Molykote applied instead. 4. Chamfer edges (gently round off sharp leading edges) on brake pads. Some pads have vertical grooves, these can be gently chamfered with a triangular file as well. See picture "Chamfering Technique". 5. Apply Molykote to the sides of the backing plate. See picture "Adhesive and Paste Application Area". 6. After installing the brake linings, actuate the brake for 30 seconds. b) If the noises are coming from the rear axle. 1. Remove brake pads of rear axle. 2. Clean all contact points on brake lining backing plate and brake caliper/carrier. 3. Clean bonding surface (where pistons contact back of brake pad). Apply adhesive film to the backplate of the piston-side brake lining. 4. Chamfer edges (round off sharp leading edges) on brake pads. See picture "Chamfering Technique". 5. Grease contact points (red areas on attachment "Rear Pad Grease Area") between brake lining and guide of brake caliper with Molykote. 3. Brake Bedding Process: a) Before trip, the mileage incurred must be clarified with the customer (approx. 30 miles). b) Select a suitable route so speeds of approximately 65 MPH can be achieved. c) If the vehicle is an AMG P3 Hybrid, switch off recouperation prior to bedding in brakes. d) Brake the vehicle 15 times with a brake pressure of approx. 30 bar (have the passenger read it out using XENTRY) from 62 MPH to 30 MPH (no emergency stops and no braking in the ESP control range). Maintain a cooling distance of approx. 1 mile between brake applications. e) Finally drive approx. 3 miles to allow the system to cool. f) Reassess noise.

  Associated Products (122)

  2025 Mercedes-Benz AMG GT2025 Mercedes-Benz GLA-Class2025 Mercedes-Benz GLB-Class2025 Mercedes-Benz GLC-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 GLC-Class2024 Mercedes-Benz GLE-Class2024 Mercedes-Benz GLS-Class2024 Mercedes-Benz S-Class2024 Mercedes-Benz SL-Class2023 Mercedes-Benz AMG GT2023 Mercedes-Benz C-Class2023 Mercedes-Benz CLA-Class+ 102 more
  Associated Documents

  • DownloadMC-11021141-0001.pdf↗
• July 11, 2025•Document ID: 11020675

  Over The Air
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  OTA - 25P5497847

  Date Added:

  July 11, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, the MBUX system software does not correspond with the latest series production configuration. The MBUX system will receive an OTA update that includes general product improvements and robustness enhancements for the “Live Traffic Information” and “Point of Interest” (POI) features. MBUSA will conduct an OTA service campaign. Remote software updates are automatically downloaded and installed in the customer’s vehicle free of charge and do not require a dealer visit.

  Associated Products (26)

  2023 Mercedes-Benz CLS-Class2023 Mercedes-Benz E-Class2023 Mercedes-Benz EQB-Class2023 Mercedes-Benz GLA-Class2023 Mercedes-Benz GLB-Class2023 Mercedes-Benz GLC-Class2022 Mercedes-Benz CLS-Class2022 Mercedes-Benz E-Class2022 Mercedes-Benz EQB-Class2022 Mercedes-Benz GLA-Class2022 Mercedes-Benz GLB-Class2022 Mercedes-Benz GLC-Class2021 Mercedes-Benz CLS-Class2021 Mercedes-Benz E-Class2021 Mercedes-Benz GLA-Class2021 Mercedes-Benz GLB-Class2021 Mercedes-Benz GLC-Class2020 Mercedes-Benz CLS-Class2020 Mercedes-Benz E-Class2020 Mercedes-Benz GLA-Class+ 6 more
  Associated Documents

  • DownloadMC-11020675-0001.pdf↗
• July 8, 2025•Document ID: 11020640

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  LI20.10-P-076206

  Date Added:

  July 10, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Customer states that the CEL is lit in the instrument cluster Cause Debris in the coolant system Remedy An updated thermostat must be installed. Order the correct thermostat part number for your application: CLA45/GLA45: A 139200 66 02 All other M139 equipped vehicles: A 139 200 64 02. New screws must also be ordered and installed with the revised thermostat, PN N000000006341 (qty 2) will be used in place of the existing M8 screws. on the face of the thermostat. The new screws must be torqued to 8 Nm. Follow the instructions in WIS for removal and installation with the exception of the thermostat screw torque value mentioned previously. After replacement, fill and bleed the coolant system per the instructions in WIS for the model that is being worked on. QC the car on a test drive. If the complaint is remedied, release the vehicle.

  Associated Products (9)

  2024 Mercedes-Benz C-Class2023 Mercedes-Benz C-Class2023 Mercedes-Benz CLA-Class2023 Mercedes-Benz GLA-Class2022 Mercedes-Benz CLA-Class2022 Mercedes-Benz GLA-Class2021 Mercedes-Benz CLA-Class2021 Mercedes-Benz GLA-Class2020 Mercedes-Benz CLA-Class
  Associated Documents

  • DownloadMC-11020640-0001.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 11, 2025•Document ID: 11019636

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  LI35.31-P-074854

  Date Added:

  June 18, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Noises from the rear axle differential, particularly when cornering slowly Cause Small quantity of water entering into oil of multiplate clutches at right and left Remedy Carry out oil change of clutch oil on left and right sides (Shell TF0870B). DO NOT change the gear set oil (at center), since this is a long-life oil that is unconnected to the complaint Return the vehicle to the customer and inform them that they must drive a distance of at least 250 km (155mi); The complaint should then be rectified. If the problem occurs again, create TIPS case and submit it to the Powertrain inbox with the following information: • Create video in which the noise can be heard, with view of the instrument cluster (with speed, engine speed, drive program, gear). • Quick test with fault freeze frame data • EEPROM data from transmission control unit Y3/14 (dual-clutch transmission) AND all-wheel drive (AWD) control units N15/20 and N15/21

  Associated Products (9)

  2024 Mercedes-Benz CLA-Class2024 Mercedes-Benz GLA-Class2023 Mercedes-Benz CLA-Class2023 Mercedes-Benz GLA-Class2022 Mercedes-Benz CLA-Class2022 Mercedes-Benz GLA-Class2021 Mercedes-Benz CLA-Class2021 Mercedes-Benz GLA-Class2020 Mercedes-Benz CLA-Class
  Associated Documents

  • DownloadMC-11019636-0001.pdf↗
• June 4, 2025•Document ID: 11019601

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  LI20.10-P-076206

  Date Added:

  June 17, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Customer states that the CEL is lit in the instrument cluster Cause Debris in the coolant system Remedy An updated thermostat must be installed. A TIPS case must be created to order the part. Order the correct thermostat part number for your application: CLA45/GLA45: A 139200 66 02 All other M139 equipped vehicles: A 139 200 64 02 New screws must also be ordered and installed with the revised thermostat, PN N000000006341 (qty 2) will be used in place of the existing M8 screws. on the face of the thermostat. The new screws must be torqued to 8 Nm. Follow the instructions in WIS for removal and installation with the exception of the thermostat screw torque value mentioned previously. After replacement, fill and bleed the coolant system per the instructions in WIS for the model that is being worked on. QC the car on a test drive. If the complaint is remedied, release the vehicle.

  Associated Products (10)

  2024 Mercedes-Benz C-Class2024 Mercedes-Benz CLA-Class2023 Mercedes-Benz C-Class2023 Mercedes-Benz CLA-Class2023 Mercedes-Benz GLA-Class2022 Mercedes-Benz CLA-Class2022 Mercedes-Benz GLA-Class2021 Mercedes-Benz CLA-Class2021 Mercedes-Benz GLA-Class2020 Mercedes-Benz CLA-Class
  Associated Documents

  • DownloadMC-11019601-0001.pdf↗
• May 30, 2025•Document ID: 11018712

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  LI54.71-P-078802

  Date Added:

  May 30, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint MBUX head unit display with red text box "System Inoperative". ONLY for vehicles with SA code (549+21U) or (549+U19). Cause Head unit software variant. Remedy For all chassis use Xentry to update head unit (A26/17). Target boot software number should be either: • 247 904 6600 (E905.4) OR • 247 904 7500 (E906.1) If vehicle fits all criteria and either target software is not available via Xentry, please open an XSS ticket. Damage code 5424x-01 may be used with a repair start date after June 2nd, 2025.

  Associated Products (61)

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  Associated Documents

  • DownloadMC-11018712-0001.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↗
• May 27, 2025•Document ID: 11018622

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  LI54.10-P-078888

  Date Added:

  May 28, 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 Perform guided test for fault code "P0A7F00". Important! To ensure a bus idle of 90 minutes is achieved, the vehicle should be locked and the key placed a minimum of 30 feet from the vehicle) See SI82.85-P-0046A

  Associated Products (21)

  2025 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-Class2020 Mercedes-Benz GLB-Class+ 1 more
  Associated Documents

  • DownloadMC-11018622-0001.pdf↗
• May 22, 2025•Document ID: 11018582

  Service Bulletin/Repair Instructions
  ENGINE; ELECTRICAL SYSTEM

  Mfr Comm. #:

  LI09.40-P-079339

  Date Added:

  May 27, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Fault code P2F1D01 The control unit was switched off improperly stored in ETC control unit. Cause This fault is set when there is a voltage demand from the ME, but there was no bus sleep yet. This fault can typically be ignored. It will not set a CEL and doesn't have any influence on the drivability or function of the vehicle. Remedy To clear this fault: - clear the error memory of the vehicle (at least the ETC and ME) - put the vehicle to sleep (lock and wait) and wake up (unlock) - turn ignition ON and read error memory again - DTCs shouldn´t be present in ETC - no CEL is turned ON - vehicle can be started and driven

  Associated Products (10)

  2024 Mercedes-Benz C-Class2024 Mercedes-Benz CLA-Class2023 Mercedes-Benz C-Class2023 Mercedes-Benz CLA-Class2023 Mercedes-Benz GLA-Class2022 Mercedes-Benz CLA-Class2022 Mercedes-Benz GLA-Class2021 Mercedes-Benz CLA-Class2021 Mercedes-Benz GLA-Class2020 Mercedes-Benz CLA-Class
  Associated Documents

  • DownloadMC-11018582-0001.pdf↗
• May 21, 2025•Document ID: 11019018

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  LI33.30-P-056665

  Date Added:

  June 3, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end). The clunk is heard once when changing from forward to reverse (and vice versa). Note: Sound file in attachment Cause If the complaint is eliminated by experimentally loosening the outboard collar nut (by 1 turn), the problem is due to micromovement in the connection between the wheel bearing inner race and the joint housing of the side shaft. Note: The collar nut must always be replaced after being loosened and must be tightened to the specified torque. Remedy Coat contact surface of side shaft with wheel bearing with Molykote paint. To do this, proceed as follows: 1. Remove outboard side shafts (extract outer joint gearing from wheel hub) 2. Clean contact surface A (see image file in attachment "Outer joint housing before") before coating with Molykote, using "spirit" (free of dust and grease) 3. Coat contact surface A (see image file in attachment "Outer joint housing after") using Molykote and leave to dry for one hour in removed condition 4. Reinstall side shafts

  Associated Products (274)

  2025 Mercedes-Benz AMG GT2025 Mercedes-Benz C-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 CLE2024 Mercedes-Benz E-Class2024 Mercedes-Benz EQB-Class2024 Mercedes-Benz G-Class2024 Mercedes-Benz GLA-Class+ 254 more
  Associated Documents

  • DownloadMC-11019018-0001.pdf↗
• May 9, 2025•Document ID: 11018232

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  LI20.10-P-076206

  Date Added:

  May 13, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Customer states that the CEL is lit in the instrument cluster Cause Debris in the coolant system Remedy An updated thermostat must be installed. A TIPS case must be created to order the part. Order the correct thermostat part number for your application: CLA45/GLA45: A 139200 66 02 All other M139 equipped vehicles: A 139 200 64 02 New screws must also be ordered and installed with the revised thermostat, PN N000000006341 (qty 2) will be used in place of the existing M8 screws. on the face of the thermostat. The new screws must be torqued to 8 Nm. Follow the instructions in WIS for removal and installation with the exception of the thermostat screw torque value mentioned previously. After replacement, fill and bleed the coolant system per the instructions in WIS for the model that is being worked on. QC the car on a test drive. If the complaint is remedied, release the vehicle.

  Associated Products (12)

  2024 Mercedes-Benz C-Class2024 Mercedes-Benz CLA-Class2024 Mercedes-Benz GLA-Class2023 Mercedes-Benz C-Class2023 Mercedes-Benz CLA-Class2023 Mercedes-Benz GLA-Class2022 Mercedes-Benz CLA-Class2022 Mercedes-Benz GLA-Class2021 Mercedes-Benz CLA-Class2021 Mercedes-Benz GLA-Class2020 Mercedes-Benz CLA-Class2020 Mercedes-Benz GLA-Class
  Associated Documents

  • DownloadMC-11018232-0001.pdf↗
• May 7, 2025•Document ID: 11018164

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  LI54.65-P-078762

  Date Added:

  May 8, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Please note that the exact quick test conditions must be met as seen below. If not exactly as listed below, there is no need to create a TIPS case referencing this LI unless further assistance is needed outside of this document. Conditions Instrument Cluster Message: "Park Assist Inoperative" and Hardware part numbers: A0009019716 or A0009016022 B223263 with Bosch-ID C259; A+S (Active and Stored) and B223255 with Bosch-ID 1B5D; A+S (Active and Stored) Notes: • Other DTC's are permitted but the above three conditions must be met. If they are not met, this LI is not applicable. • See attachment "LI Criteria" for an example. • Attachment portrays a quick test with non-matching criteria and therefore does not require a TIPS case. Cause Under analysis. Remedy Please do not make any attempts to repair the park control unit. Do not flash or SCN code. Open a TIPS case.

  Associated Products (53)

  2025 Mercedes-Benz C-Class2025 Mercedes-Benz E-Class2025 Mercedes-Benz GLA-Class2025 Mercedes-Benz GLB-Class2025 Mercedes-Benz GLC-Class2025 Mercedes-Benz GLE-Class2024 Mercedes-Benz C-Class2024 Mercedes-Benz CLA-Class2024 Mercedes-Benz E-Class2024 Mercedes-Benz GLA-Class2024 Mercedes-Benz GLB-Class2024 Mercedes-Benz GLC-Class2024 Mercedes-Benz GLE-Class2024 Mercedes-Benz GLS-Class2024 Mercedes-Benz S-Class2023 Mercedes-Benz C-Class2023 Mercedes-Benz CLA-Class2023 Mercedes-Benz E-Class2023 Mercedes-Benz GLA-Class2023 Mercedes-Benz GLB-Class+ 33 more
  Associated Documents

  • DownloadMC-11018164-0001.pdf↗