Mercedes-Benz GLE-Class Service Bulletins

731 manufacturer communications on file.

• May 22, 2025•Document ID: 11018626

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  LI82.85-P-079271

  Date Added:

  May 29, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint After a software update of HERMES communication module N112/9 has been performed on a gray import vehicle, the message "SOS - Service not activated" is displayed in the instrument cluster. Cause The message "SOS - Service not activated" tells the customer that "over-the-air" registration of the vehicle with the Mercedes Intelligent Cloud is not possible. On a gray import vehicle, this is due to the fact that the SIM card installed in the HERMES communications module cannot dial into the mobile phone network in the importing country. Remedy The only way of avoiding the message in the instrument cluster is to deactivate the HERMES module using the 09o deactivation process after obtaining the customer's consent. After deactivation, the HERMES control unit (N112/9) has the operating status "Inoperative". The message "SOS not ready" appears in the audio/COMAND display (A40/8) and may also appear in the instrument cluster. This display message tells the customer that the emergency call function is not available. In addition, the workshop must attach a label (2 x part number A9078172900 required) to the cover of the emergency call button in the overhead control panel and to the emergency call button itself. Replacing the hardware of the HERMES communication module is not effective.

  Associated Products (119)

  2024 Mercedes-Benz G-Class2023 Mercedes-Benz CLS-Class2023 Mercedes-Benz E-Class2023 Mercedes-Benz G-Class2023 Mercedes-Benz GLC-Class2022 Mercedes-Benz A-Class2022 Mercedes-Benz CLS-Class2022 Mercedes-Benz E-Class2022 Mercedes-Benz G-Class2022 Mercedes-Benz GLC-Class2021 Mercedes-Benz A-Class2021 Mercedes-Benz AMG GT2021 Mercedes-Benz C-Class2021 Mercedes-Benz CLS-Class2021 Mercedes-Benz E-Class2021 Mercedes-Benz G-Class2021 Mercedes-Benz GLC-Class2021 Mercedes-Benz S-Class2020 Mercedes-Benz A-Class2020 Mercedes-Benz AMG GT+ 99 more
  Associated Documents

  • DownloadMC-11018626-0001.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)

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  Associated Documents

  • DownloadMC-11019018-0001.pdf↗
• May 19, 2025•Document ID: 11018510

  Service Bulletin/Repair Instructions
  VISIBILITY/WIPER

  Mfr Comm. #:

  LI83.30-P-077763

  Date Added:

  May 21, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Customer concern of Air Conditioning not cooling. Cause Possible refrigerant leak at the evaporator. Remedy Perform the following measures : Remedy 1: (Only applies to vehicles produced prior to April 15, 2022) Must be included for warranty: 1. Picture of the forming gas check being performed with RO that shows the VIN clearly in view. (see attachments) 2. Clear picture of VIN on B-pillar. 3. Ensure that the rest of the AC system has been thoroughly checked for leaks before condemning the evaporator. Remedy 2: (Applies to all vehicles produced on or after April 15, 2022 up to April 1, 2025) Must be included for warranty: 1. Picture of the forming gas check being performed with RO that shows the VIN clearly in view. (see attachments) 2. Clear picture of VIN on B-pillar. 3. Attach pictures of new and old bracket so it can be seen if leaking to your warranty submission. Ensure that the entire AC system has been thoroughly checked for leaks. If no leaks were found AND the system came in with no cooling/low charge, OR the evaporator is suspected of leaking: Replace the expansion valve and bracket (comes with new valve) as per WIS. (Refer to the attachments "Clamp surface of the bracket" and install the bracket with the clamp surface being parallel to the expansion valve) Be sure to tighten the valve to 7Nm and alternate each bolt when tightening. Make sure old bracket is included with expansion valve for warranty return as it is needed for analysis. If the production date is also before July 2024, replace the dryer as well. After, charge the system and perform a few drive cycles. Recheck the vehicle for leaks. If no leaks are found, the vehicle can be released. If any leaks are found afterwards, then open a TIPS case with the following: 1. Initial Quick Test 2. Create a short video of the actual pressures via AC machine, showing the engine running, and hold a copy of the VIN/RO in view as well. 3. Picture of the forming gas check being performed with RO that shows the VIN clearly in view. 4. OBS recording of XENTRY AC actual values of compressor request to be on and current value. (Instructions in Attachments) 5. Video recording of the leak being found via sniffer at the R/F AC drain after removing the under dash panel. (see attached videos) 6. If the evaporator is found to be leaking via sniffer, another video needs to be uploaded (or a continuation if only making the video after checks), showing the expansion valve being checked for leaks. 7. If no leaks are found with the sniffer at the expansion valve, spray soapy water mix on the expansion valve and check for leaks. Upload a video showing the spray test and VIN. 8. Open a TIPS case in the HV/LV inbox labeled "167 Evaporator Suspected of Leaking" with all attachments. Remedy 3: (Only applies to vehicles produced after April 1, 2025) Ensure that the entire AC system has been thoroughly checked for leaks. If any leaks are found, then open a TIPS case with the following: 1. Initial Quick Test 2. Create a short video of the actual pressures via AC machine, showing the engine running, and hold a copy of the VIN/RO in view as well. 3. Picture of the forming gas check being performed with RO that shows the VIN clearly in view. 4. OBS recording of XENTRY AC actual values of compressor request to be on and current value. (Instructions in Attachments) 5. Video recording of the leak being found via sniffer at the R/F AC drain after removing the under dash panel if the evaporator is suspected. (see attached videos) 6. If the evaporator is found to be leaking via sniffer, another video needs to be uploaded (or a continuation if only making the video after checks), showing the expansion valve being checked for leaks. 7. If no leaks are found with the sniffer at the expansion valve, spray soapy water mix on the expansion valve and check for leaks. Upload a video showing the spray test and VIN. 8. Open a TIPS case in the HV/LV inbox labeled "167 AC leak after April 1, 2025" with all

  Associated Products (11)

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  Associated Documents

  • DownloadMC-11018510-0001.pdf↗
• May 15, 2025•Document ID: 11018625

  Warranty Program/Extension
  FUEL/PROPULSION SYSTEM

  Mfr Comm. #:

  EW - Tank Leakage

  Date Added:

  May 28, 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, LLC (“MBUSA”) is extending the warranty coverage on the Diagnostic Module for Tank Leakage detection (DMTL) in certain Model Year (“MY”) vehicles listed below from the original New Vehicle Limited Warranty of 4 years/50,000 miles to 10 years/120,000 miles (vehicles certified as LEV II) and 15 years/150,000 miles (vehicles certified as LEV III), whichever occurs first, for the following condition: • Under certain circumstances, the DMTL may trigger erroneous Diagnostic Trouble Code (DTC) entries that may result in the illumination of the Check Engine Malfunction Indicator Lamp (‘MIL’).

  Associated Products (57)

  2023 Mercedes-Benz SL-Class2022 Mercedes-Benz A-Class2022 Mercedes-Benz AMG GT2022 Mercedes-Benz C-Class2022 Mercedes-Benz CLA-Class2022 Mercedes-Benz CLS-Class2022 Mercedes-Benz E-Class2022 Mercedes-Benz G-Class2022 Mercedes-Benz GLA-Class2022 Mercedes-Benz GLB-Class2022 Mercedes-Benz GLC-Class2022 Mercedes-Benz GLE-Class2022 Mercedes-Benz GLS-Class2022 Mercedes-Benz S-Class2022 Mercedes-Benz SL-Class2021 Mercedes-Benz A-Class2021 Mercedes-Benz AMG GT2021 Mercedes-Benz C-Class2021 Mercedes-Benz CLA-Class2021 Mercedes-Benz CLS-Class+ 37 more
  Associated Documents

  • DownloadMC-11018625-0001.pdf↗
• May 15, 2025•Document ID: 11018516

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  LI20.00-P-076708

  Date Added:

  May 21, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Check engine lamp activated, coolant warning message, and engine fan running at full speed. Below fault codes stored in N127 PTCU related to LIN network components. U063200, U063287, U02A900, U02A987, U0698E4, U0698E5, U02C800, U02C887, U063B00, U063B87 Cause Under analysis. Remedy Model 254 -Update software of PTCU N127 -Cleared fault codes and check vehicle operation Model 167 Disconnect 12V battery and leave for 20 minutes. Reconnect battery and clear fault codes. Perform 2 test drives, with at least 5 minutes in between with ignition off. If vehicle operates normally, it can be released to the owner. Software solution is in development for PTCU variant 22A. If complaint occurs in vehicle with PTCU version later that 22A please check the following: -Check connections at all LIN bus components connected to N127 PTCU for damage, corrosion, or poor connection -Check wiring between LIN bus components and N127 for damage or chaffing -Inspect intermediate connections between LIN bus components and N127 for damage, corrosion, or poor connection

  Associated Products (4)

  2025 Mercedes-Benz GLC-Class2024 Mercedes-Benz GLC-Class2024 Mercedes-Benz GLE-Class2023 Mercedes-Benz GLC-Class
  Associated Documents

  • DownloadMC-11018516-0001.pdf↗
• May 12, 2025•Document ID: 11018322

  Service Bulletin/Repair Instructions
  VISIBILITY/WIPER

  Mfr Comm. #:

  LI83.30-P-077763

  Date Added:

  May 15, 2025

  Manufacturer:

  MERCEDES-MAYBACH

  Summary

  Complaint Customer concern of Air Conditioning not cooling. Cause Possible refrigerant leak at the evaporator. Remedy Perform the following measures : Remedy 1 (Only applies to vehicles produced during or prior to June 2023) 1. Picture of the forming gas check being performed with RO that shows the VIN clearly in view. 2. Clear picture of VIN on B-pillar. 3. Ensure that the rest of the AC system has been thoroughly checked for leaks before condemning the evaporator. Remedy 2 (Applies to all 167's produced after June 2023) 1. Ensure that the rest of the AC system has been thoroughly checked for leaks before condemning the evaporator. 2. Do NOT remove the expansion valve from the evaporator prior to being advised to in a TIPS case. 3. Initial Quick Test 4. Create a short video of the actual pressures via AC machine, showing the engine running, and hold a copy of the VIN/RO in view as well. 5. Picture of the forming gas check being performed with RO that shows the VIN clearly in view. 6. OBS recording of XENTRY AC actual values of compressor request to be on and current value. (Instructions in Attachments) 7. Video recording of the leak being found via sniffer at the R/F AC drain after removing the under dash panel. (see attached videos) 8. If the evaporator is found to be leaking via sniffer, another video needs to be uploaded (or a continuation if only making the video after checks), showing the expansion valve being checked for leaks. 9. If no leaks are found with the sniffer at the expansion valve, spray soapy water mix on the expansion valve and check for leaks. Upload a video showing the spray test and VIN. 10. Open a TIPS case in the HV/LV inbox labeled "167 Evaporator Suspected of Leaking" with all attachments. NOTE: (Applies to all 167's) • Please see the list of WIS documents for forming gas leak check and recharging of the system. • All documents, with the exception of videos need to be uploaded for the warranty claim. Videos are only needed if a TIPS case is opened. • Ensure that a full vacuum is pulled on the system for at least 30 minutes after replacement • Condenser replacement is NOT authorized as a suitable repair in lieu of the dryer not being available.

  Associated Products (11)

  2025 Mercedes-Benz GLE-Class2024 Mercedes-Benz GLE-Class2024 Mercedes-Benz GLS-Class2023 Mercedes-Benz GLE-Class2023 Mercedes-Benz GLS-Class2022 Mercedes-Benz GLE-Class2022 Mercedes-Benz GLS-Class2021 Mercedes-Benz GLE-Class2021 Mercedes-Benz GLS-Class2020 Mercedes-Benz GLE-Class2020 Mercedes-Benz GLS-Class
  Associated Documents

  • DownloadMC-11018322-0001.pdf↗
• May 10, 2025•Document ID: 11018230

  Service Bulletin/Repair Instructions
  SERVICE BRAKES

  Mfr Comm. #:

  LI42.10-P-078779

  Date Added:

  May 13, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Repeat workshop visit for vehicle vibration under braking from 60MPH through to 40MPH. Cause Under investigation. Remedy Leave vehicle in as-received condition and please open a TIPS case and direct to the BCE (Body, Chassis, Entertainment) inbox. Please provide any notes of aftermarket modifications that are visually obvious, if any, to the vehicle. After market modifications may be items such as painted calipers or powder coated wheels.

  Associated Products (4)

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  Associated Documents

  • DownloadMC-11018230-0001.pdf↗
• May 9, 2025•Document ID: 11018229

  Service Bulletin/Repair Instructions
  SEATS

  Mfr Comm. #:

  LI91.30-P-079285

  Date Added:

  May 13, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint In vehicles without codes REAR SEAT ENTERTAINMENT (854/447/864) and 903 REAR COMFORT SEAT HEATING (903) or REAR COMFORT PACKAGE (P08), the rear seat heating cannot be activated via voice control. However, the voice control erroneously provides feedback that the seat heating has been activated. Cause A26/17 - MBUX multimedia system (Head unit) software Remedy Software E604 (FUP6) corrects the erroneous feedback from the head unit regarding the activation of the seat heating. Important note: The feature "Activation of seat heating via voice control" is only available in vehicles with codes REAR SEAT ENTERTAINMENT (854/447/864) and 903 REAR COMFORT SEAT HEATING (903) or REAR COMFORT PACKAGE (P08)

  Associated Products (6)

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  Associated Documents

  • DownloadMC-11018229-0001.pdf↗
• May 8, 2025•Document ID: 11018211

  Emissions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  NCU-2025050001

  Date Added:

  May 9, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that certain Model Year (“MY”) 2019 – 2022 C-Class, CLS, E-Class, E-Class Coupe/Convertible, GLE/GLS-Class and AMG GT vehicles (206, 257, 213, 238,167 and 290 platforms) are potentially affected with multiple topics related to the 48V battery management system, which erroneously may or may not illuminate the check engine malfunction indicator lamp (‘MIL’) in one or more of the following circumstances: • Memory error causing battery switch to open, prohibiting vehicle to restart; • The battery thermal management system, power supply voltage (12V) measurement and 48V battery switch diagnostic may not be monitored by the OBD-system; • Plausibility check of the temperature sensor, temperature range and Real Time Clock (RTC) monitoring might not operate as intended. MBUSA will conduct an Emission Service Campaign. An authorized Mercedes-Benz dealer will update the drivetrain control unit software on the affected vehicles. Affected customers will be notified via First Class letter to have the update performed on their vehicle.

  Associated Products (27)

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  Associated Documents

  • DownloadMC-11018211-0001.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.

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  Associated Documents

  • DownloadMC-11018164-0001.pdf↗
• May 2, 2025•Document ID: 11018206

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  LI54.10-P-071499

  Date Added:

  May 9, 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. 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, create a 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 and N73/3 EZS CUL • 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".

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  Associated Documents

  • DownloadMC-11018206-0001.pdf↗
• May 2, 2025•Document ID: 11018204

  Service Bulletin/Repair Instructions
  FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING; STEERING; LANE DEPARTURE: ASSIST

  Mfr Comm. #:

  LI46.10-P-078012

  Date Added:

  May 9, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Hand detection system not operating correctly / vehicles with code 266 Fault message in instrument cluster: "Active Emergency Stop Assist not available" "Active Lane Keeping Assist not available" Cause Possible causes: the hand detection mat, the hand detection control unit, the contacts and the steering wheel harness. Remedy In the event of a customer complaint and fault code in IDC control unit: U186B29 in IDC223 or fault code U0429E0, U042941, U042929, U042902, U0429E1 in IDC213 or fault code in HOSWD control unit: B1E7614 Test: Please perform the new SCN coding for HOSWD control unit (N179/1) (available since May 2025). Please flash the IDC (N62/4) software A223 902 75 37 (only applies to HOSWD223). Erase fault memory Remedy: Switch on ignition without touching the steering wheel. If after 10 seconds without touching the steering wheel, one of the two fault messages appears in the IC: Please check contacts and feed lines in the steering wheel by means of visual inspection for damage, crimped connections, loose connections, etc. (example in picture 2 and 3). If there is visible damage -> replace steering wheel electronics or feed lines. If there is no visible damage -> Please create TIPS case! If no yellow message appears in the instrument cluster within 10 seconds: Please grab the steering wheel all the way round, including the 6 o'clock chrome molding, with both hands (see picture 1). If the fault is triggered by grabbing the steering wheel rim or pressing on the 6 o'clock clasp, check contacts and feed lines in the steering wheel by means of visual inspection for damage, crimped connections, loose connections, etc. (example in picture 2 and 3). Check ground connections (screw connections and cable to steering wheel rim); if necessary tighten screws/bolts and check for corrosion (Picture 4). If there is visible damage -> replace steering wheel electronics or feed lines. If no fault is visible: Please open a TIPS case! In the event of a customer complaint and further fault code in HOSWD: B1E7713: Check ground connections (screw connections and cable to steering wheel rim); if necessary tighten screws/bolts and check for corrosion (Picture 4). B1F1F04: Check hand detection system control unit; if necessary swap with donor vehicle (ensure that the HW part numbers are identical).

  Associated Products (57)

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  Associated Documents

  • DownloadMC-11018204-0001.pdf↗
• April 28, 2025•Document ID: 11017500

  Service Bulletin/Repair Instructions
  EXTERIOR LIGHTING

  Mfr Comm. #:

  LI82.10-P-078896

  Date Added:

  May 2, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Headlamps leaking or fogged Cause The fogging of the headlamp is a natural phenomenon which can occur under certain climatic conditions. In contrast to a leaky headlamp, physical fogging does not result in a technical impairment of the headlamp. A leak test must be performed to determine if physical fogging exists or if the headlamp is leaky. Remedy Check for external damage: You can identify a damaged headlamp in the following way: For headlamps with a closed system 1. Check the headlamps for any external damage and check also for correct seating of the Gore-diaphragm/correct latching of the cover caps. 2. If the headlamp exhibits any external damage, replace the headlamp. For headlamps with an open system 1. Check the headlamps for any external damage and seal off the vent, then make sure the cover caps are latched correctly into place. 2. If the headlamp exhibits any external damage, replace the headlamp. Note: External damage to the headlamp does not present a warranty or goodwill case. 1. Clear fogged/condensed LED headlamps and LED rear lamps: 1. Drive the vehicle into the workshop (temperature higher than +18 °C/+64.4°F). Note: Do not perform an engine wash before the defogging test. 2. Switch off the engine and connect battery support via a charger. 3. Open the hood or trunk. 4. Switch on the lights. 5. Leave the vehicle in this state for 60 minutes. 6. Check for formation of condensation, a significant reduction in the formation of condensation must be clearly recognizable (thawing progress). 7. If the condensation has disappeared, nothing else has to be done. Note: If defrosting has been performed, you can skip the first step. 2. Leak test of headlamp with overpressure: • Connect test adapter to pressure tester. (Figure 1) • Check test adapter for leak tightness. To do so, connect plug and coupling (picture 2) and apply a maximum overpressure of 30 mbar. The pressure must remain constant. If the pressure does not remain constant, use a new adapter. • All vents have to be sealed with sealing compound and the existing diaphragm with the stamp (picture 3 [3]). (Picture 4) Make allowance for the different headlamp variants here (there are different outlet openings). • Check if the headlamp needs to be removed to gain access to the diagnostic socket on the headlamp housing. • Plug the adapter onto the diagnostic socket on the headlamp housing. (Picture 5). • Apply a maximum of 30 mbar overpressure to the headlamp housing. Note: If the maximum overpressure of 50 mbar is exceeded the headlamp seal will be damaged (picture 6). • If a pressure drop of less than 10 mbar is measured within 30 seconds, the headlamp is tight and there is natural physical condensation. • If a higher pressure drop than 10 mbar is measured within 30 seconds, the headlamp is leaky. Note: The leaky position can be localized with the aid of soap suds. If the pressure test is not passed, the headlamp is leaky. If the cause cannot be rectified, the headlamp must be replaced. Note: If the headlamp is replaced, no dry packs may be installed on the new replacement headlamp. AR82.10-P-5455WT was created for the pressure test. This AR can be used as a reference manual for all closed headlamps. In the event of an open headlamp system, the vent ducts must be sealed before the pressure test.

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  Associated Documents

  • DownloadMC-11017500-0001.pdf↗
• April 28, 2025•Document ID: 11017496

  Service Bulletin/Repair Instructions
  EXTERIOR LIGHTING

  Mfr Comm. #:

  LI82.10-P-078301

  Date Added:

  May 2, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Headlamp, front fog lamp leaky or fogged Cause Fogging of the headlamps is a natural phenomenon, which can occur under certain climatic conditions. It does not lead to any technical impairment of the headlamp. Remedy NOTE: If a pressure compensation diaphragm is fitted in the housing cover, then the lamp unit is a "closed system". Headlamp: Remedy 1 Clearing fogged/condensed LED headlamps and LED rear lamps: 1. Drive vehicle into workshop (temperature higher than +18 °C/+64.4 °F) and connect the exhaust extraction. Note: Do not perform an engine wash before the defogging test. 2. Switch off the engine and connect battery support via a charger. 3. Open the hood or trunk. 4. Switch on the lights. 5. Leave the vehicle in this state for 60 minutes. 6. Check for formation of condensation, a significant reduction in the formation of condensation must be clearly recognizable (thawing progress). Clearing fogged/condensed halogen/xenon headlamps: 1. Drive the vehicle into the workshop (temperature higher than +18 °C/+64.4°F). Note: Do not perform an engine wash before the defogging test. 2. Switch off the engine. 3. Open the hood. 4. Switch off the lights. 5. Leave the vehicle in this state for 60 minutes. 6. Check for formation of condensation, a significant reduction in the formation of condensation must be clearly recognizable (thawing progress). Note: If there is no visible reduction in the formation of condensation, check the headlamp for damage. (See Remedy 2) It is not physically possible to defog the headlamps completely. Fogging does not impair the operation or the service life of the headlamp. Remedy 2 A damaged headlamp can be identified as follows: 1. Check the headlamp for external damage and that the cover caps and the diaphragm are correctly seated. 2. Check the electrical connectors of the plugs and pins. 3. Check for leak tightness in accordance with LI82.10-P-078896 The test can only be conducted on headlamps. 4. If the headlamp or the rear lamp has any external damage, replace the component part in accordance with the WIS instructions.

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  • DownloadMC-11017496-0001.pdf↗
• April 22, 2025•Document ID: 11017210

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  LI54.30-P-079004

  Date Added:

  April 24, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint The message "Device detected at diagnostics connection See Operator’s Manual" appears sporadically in the multifunction display of the instrument cluster while driving (see picture in attachment). Cause For vehicles with HERMES 3.0, • A2389015700 • A2389015800 • A2389018400 • A2389018900 • A2389019000 • A2389019800 • A2579011200 • A2579012100 the above-mentioned message is sporadically displayed in the instrument cluster once the over-the-air update to software release E843 (Software part number A2389022409) has been performed. The coding was performed incompletely here. Remedy A relevant over-the-air software update campaign for the control unit N112/9 (HERMES) is in preparation. If the vehicle is already on site, the problem can be rectified by manually commissioning the control unit N112/9 (HERMES) with XENTRY: XENTRY. "N112/9 - Control unit for telematics services (HERMES)" -> "Adaptations" -> "Control unit commissioning" -> "Commissioning of previously installed control unit"

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  Associated Documents

  • DownloadMC-11017210-0001.pdf↗
• April 22, 2025•Document ID: 11017203

  Service Bulletin/Repair Instructions
  FUEL/PROPULSION SYSTEM

  Mfr Comm. #:

  LI47.10-P-079166

  Date Added:

  April 24, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint A pulsating knocking noise (e.g. clattering) can be heard underneath the bench seat, particularly in the case of a full tank (1/1 fill level). Cause The vibrating air column of the purge flow volume triggers the fill limit vent valve (FLVV) to open and close repeatedly when the fuel tank is full. Remedy By reducing the fuel quantity by around 5 liters, the noise can no longer be heard. In isolated cases, the noise can also be amplified by a fuel tank installed under stress and therefore lines adjacent to the body-in-white (above the fuel tank). In this case, the installation position of the fuel tank and the contact surfaces to the body-in-white must be checked. To do so, loosen the fuel tank and refasten it. Please do not replace component parts such as the fuel tank, activated charcoal canister, purge valve or delivery module, as this does not provide a remedy. If a similar noise can be heard with a tank fill level of, for example, 3/4 or 1/4 and not with a full tank (1/1), there is a different issue.

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  • DownloadMC-11017203-0001.pdf↗
• April 21, 2025•Document ID: 11017217

  Service Bulletin/Repair Instructions
  VISIBILITY/WIPER

  Mfr Comm. #:

  LI83.30-P-079081

  Date Added:

  April 24, 2025

  Manufacturer:

  MERCEDES-MAYBACH

  Summary

  Complaint Random heating of air conditioning system. Cause Temperature sensor in overhead control panel (OCP) delivering incorrect values: The temperature sensor in the overhead control panel is malfunctioning. Fault code B110709 or fault code B11F697 are present in the overhead control panel with the status (active) or (active stored). or The temperature sensor in the overhead control panel measures an incorrect temperature (the temperature value can be checked against the actual value in the overhead control panel) If the above-mentioned fault code is not present, the cause could be malfunction on the air conditioning system. Remedy If one of the above-mentioned fault codes should occur, a TIPS case must be created here. If the above fault codes or actual value differences are present in the OCP - please send the case to the Body/Chassis/ Entertainment inbox. Otherwise, the case must be sent to the HV/LV inbox for support in A/C diagnosis. *** It is not necessary to replace the overhead control panel ***

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  • DownloadMC-11017217-0001.pdf↗
• April 21, 2025•Document ID: 11017209

  Service Bulletin/Repair Instructions
  VISIBILITY/WIPER

  Mfr Comm. #:

  LI82.30-P-078932

  Date Added:

  April 24, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Windshield streaking on driver's side. Cause Incorrect replacement wiper blades may have been installed A167 820 92 01 may have been installed instead of A167 820 87 03. After longer periods of non-use, the wiper blade lip may compress slightly and result in streaking. Only vehicles built before October 20th, 2022 should use wiper A167 820 92 01. Remedy Install the correct part number for the replacement wiper blades.

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  • DownloadMC-11017209-0001.pdf↗
• April 21, 2025•Document ID: 11017208

  Service Bulletin/Repair Instructions
  EXTERIOR LIGHTING; ELECTRICAL SYSTEM

  Mfr Comm. #:

  LI82.10-P-079179

  Date Added:

  April 24, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Message in instrument cluster "Adaptive high beams assistant not available/inoperative" or "DIGITAL LIGHT reduced range of functions" in relation to "FC151E29- The level sensor at front left has a malfunction. There is an invalid signal" in the control unit HLI/LED headlamp range adjustment front left. Cause Electronic interference occurring at the sensor level of the front axle. Remedy Update of the HLI/LED headlamp range adjustment control units.

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  • DownloadMC-11017208-0001.pdf↗
• April 21, 2025•Document ID: 11017206

  Service Bulletin/Repair Instructions
  EXTERIOR LIGHTING; ELECTRICAL SYSTEM

  Mfr Comm. #:

  LI82.10-P-079175

  Date Added:

  April 24, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Instrument cluster message for rear turn signal lamp despite functioning rear lamp. Fault code in N10/8 - rear signal acquisition and actuation module in the quick test: B164B49 The rear right turn signal lamp has malfunctioned. There is an internal electrical fault. and/or B164A49 The rear left turn signal lamp has malfunctioned. There is an internal electrical fault. Cause Sensitive fault detection in N10/8 - rear signal acquisition and actuation module (BC_R) Remedy 1. Check rear lamp for failure of the individual LEDs In the event that an LED fails, the rear lamp must be replaced 2. Check the software release of the Rear SAM (BC_R) and update if necessary 3. Add AO code "o70" via VeDoc 4. Perform SCN coding of Rear SAM (BC_R). 5. If concern occurred on left, use damage code 82C20 73 6. If concern occurred on right, use damage code 82R20 73

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  • DownloadMC-11017206-0001.pdf↗