Mercedes-Benz EQB-Class Service Bulletins

172 manufacturer communications on file.

• October 29, 2024•Document ID: 11009549

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  LI80.50-P-077350

  Date Added:

  November 1, 2024

  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. Check - 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] 2. Open TIPS case for vehicles from production date 6/1/2023 - Attach photo of overhead control panel label (see example images) - Add control unit log of anti-theft alarm system [N26/6] - Add alarm history of anti-theft alarm system [N26/6], alarm siren [H3/1] and front signal acquisition and actuation module [N10/6] 3. Remedy for vehicles prior to production date 6/1/2023 - If the problem cannot be reproduced, the overhead control panel [N70] (anti-theft alarm system [N26/6] is integrated) must be replaced.

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  Associated Documents

  • DownloadMC-11009549-0001.pdf↗
• October 26, 2024•Document ID: 11009551

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  LI83.70-P-078546

  Date Added:

  November 1, 2024

  Manufacturer:

  MERCEDES

  Summary

  Complaint "Weekly profile" pre-entry climate control setting not available in the climate control menu or grayed out in the Mercedes me connect App. Cause There may be limitations on the indicator in the display due to incorrect parametrization in the head unit and PTCU SW. Remedy PTCU software update (N127)

  Associated Products (3)

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  Associated Documents

  • DownloadMC-11009551-0001.pdf↗
• October 23, 2024•Document ID: 11009122

  Service Bulletin/Repair Instructions
  STRUCTURE:BODY; VISIBILITY/WIPER

  Mfr Comm. #:

  LI82.35-P-078467

  Date Added:

  October 25, 2024

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Washer fluid system leaks Cause Various possible causes: 1. Washer fluid reservoir itself. 2. Seal on washer fluid pump/washer fluid reservoir. 3. Washer fluid pump. 3.1. Distributor housing leaks. 3.2. Pump fitting leaks. 3.3. Washer fluid hose cannot be snapped into place on pump fitting. 3.4. Washer fluid hose will not stay on pump fitting, although connector OK. 4. Washer fluid line. 4.1 Connector will not stay on pump fitting because it is broken. 4.2 Sealing ring in connector missing. 4.3 Sealing ring in connector fitted, but deformed and therefore leaks. 4.4 Damage to washer line by animal. 5. Seal on heating washer fluid reservoir/washer fluid reservoir. Remedy Replace defective component parts only. Do not replace any adjacent component parts that are intact. Note: Repair kits for washer line hoses do exist to allow patches for line damage.

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  Associated Documents

  • DownloadMC-11009122-0001.pdf↗
• October 3, 2024•Document ID: 11008878

  Service Bulletin/Repair Instructions
  STRUCTURE:BODY

  Mfr Comm. #:

  LI77.40-P-078469

  Date Added:

  October 9, 2024

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Customer complains of wind noises. Cause The cause is being clarified. Remedy If wind noises can be clearly attributed to the roof railing, create a TIPS case with the following information: • Detailed pictures of the roof railing in the actual state • Detailed pictures of the roof railing in the taped-up state • List of the work to pinpoint the cause • Result of test to see whether the component part moves -> establish there is no rattle

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  Associated Documents

  • DownloadMC-11008878-0001.pdf↗
• October 3, 2024•Document ID: 11008880

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  LI82.85-P-078473

  Date Added:

  October 9, 2024

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint After a control unit replacement of "N112/9 - control unit for telematics services (HERMES)" or the "N112/2 - control unit for telematics services (RAMSES)", the Digital Extras (previously Mercedes me) cannot be activated. The DTC B15CE00 is active or active+saved. In vehicles with "N112/9 - control unit for telematics services (HERMES)": • The message "SOS - service not activated" permanently lights up in the instrument cluster AND the actual value "Error when replacing certificate (CEP.36)" is displayed in the actual values for the activation status under "Registration status" (see picture 1). • In the control unit log of the "N112/9 - control unit for telematics services (HERMES)", the registration error "CEP Invalid VIN/UniqueID combination" is displayed. In vehicles with "N112/2 - control unit for telematics services (RAMSES)": • The actual value "Error when replacing certificate (CEP.36)" is displayed in the actual values for the activation status under "Registration status" (see picture 1). • In the control unit log of the "N112/2 - control unit for telematics services (RAMSES)", the registration error "CEP_ VIN_UNIQUEID_INVALID" is displayed. The emergency call is not impaired. Cause In the event of a control unit replacement, sporadic problems in the back end could result in data from the new control unit not being updated in the back end system. Remedy Please create a TIPS case. In some cases, the problem rectifies itself on its own after a little while.

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  • DownloadMC-11008880-0001.pdf↗
• September 28, 2024•Document ID: 11008091

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  LI82.70-P-077433

  Date Added:

  September 28, 2024

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint During a phone call, the called party has difficulty understanding/cannot understand the driver, or interference/background noises are audible to the called party during a call. It becomes increasingly difficult to understand as the speed rises. Cause A. Seating of the microphones in the headliner. Side edges are covered by the textile cover (see picture "1") B. Assembly of microphones (B25/20 or B25/21) in the headliner. C. Dirt inside the microphone housing Remedy 1. Press finger on rear of microphone (on adhesive tape) 2. Remove microphone cap from the front 3. Eliminate protruding material residues of the microphone cutout at the headliner, e.g. with a soldering iron. The microphone must be seated in the headliner as shown in picture "2". 4. Push microphone from behind until it is firmly pressed into the headliner 5. Maintain pressure and press/clip cap into microphone from the front. Note: The cover cap must be clearly heard and felt to engage. 6. This procedure must be carried out on both microphones (B25/20 and B25/21) Note: • It is recommended to replace the cover caps. • The non-woven cloth in the cover cap protects the microphone from soiling and must not be removed. NOTE: The information contained in this document is intended for use by trained, professional technicians with the knowledge to properly and safely perform diagnosis and repairs on Mercedes-Benz vehicles, using Mercedes-Benz approved tools and equipment. It informs service technicians about conditions that could occur in certain vehicles and provides information that could assist in proper vehicle diagnosis, service, or repair. It does not indicate that a defect is present in any vehicle referenced in this document nor does it imply warranty coverage. DO NOT assume that a symptom or condition, or a described cause of a symptom or condition, affects any particular vehicle or groups of vehicles, or that a described repair applies to any particular vehicle or groups of vehicles. There can be multiple causes resulting in the same or similar symptoms or conditions described in this document, and trained professional service technicians must use their diagnostic skills to make evaluations on a case-by-case basis. The information contained in this document does not guarantee warranty coverage nor does it extend the vehicle’s warranty in any way.

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  Associated Documents

  • DownloadMC-11008091-0001.pdf↗
• September 21, 2024•Document ID: 11007974

  Service Bulletin/Repair Instructions
  EXTERIOR LIGHTING

  Mfr Comm. #:

  LI82.10-P-078307

  Date Added:

  September 24, 2024

  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 In advance, observe LI82.10-P-078301 "Headlamps or Front Fog Lamps Leaking or Fogged". 1. Prepare headlamp/check for external damage: 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: A headlamp with external damage is not a warranty or goodwill case. 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. • Seal all the outlet openings using sealing compound and the given diaphragm with the plunger (picture 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. • If a pressure drop of less than 10 mbar is measured within 30 seconds, the headlamp is not leaky and the problem is down to natural physical fogging. • If a pressure drop of more 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. Replace any leaky headlamps. Note: Desiccant packs can be installed for headlamps that are not leaky. See: • LI82.10-P-064766 Fogged headlamp, desiccant pack installed - open ventilation system • LI82.10-P-078304 Fogged headlamp, desiccant pack installed - closed ventilation system

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  • DownloadMC-11007974-0001.pdf↗
• September 11, 2024•Document ID: 11007796

  Service Bulletin/Repair Instructions
  VISIBILITY/WIPER; ELECTRICAL SYSTEM

  Mfr Comm. #:

  LI82.85-P-078303

  Date Added:

  September 14, 2024

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Individual functions such as sliding sunroof or roller sunblind can no longer be operated using the gesture recognition system. Cause Gesture recognition system control unit software N168 Remedy For vehicles before modification year 23/2: A remedy is currently being developed. Replacing parts will have no effect. For vehicles as of modification year 23/2: Considered to be a series production configuration. A change will not be possible in future.

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  Associated Documents

  • DownloadMC-11007796-0001.pdf↗
• September 10, 2024•Document ID: 11007752

  Service Bulletin/Repair Instructions
  EXTERIOR LIGHTING

  Mfr Comm. #:

  LI82.10-P-078107

  Date Added:

  September 13, 2024

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Transfer of selected user-defined scene/ animation (MeApp) from HU to ECU software fails to start. Charging bar stops at 0%. (Picture in attachment) Cause Communication between light control unit and HU Remedy Software update to latest version: - A26/17 - MBUX multimedia system (head unit) - E1n14 - Front left digital headlamp control unit (DHLS-CU-VL) - E2n14 - Front right digital headlamp control unit (DHLS-CU-VR)

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  • DownloadMC-11007752-0001.pdf↗
• September 10, 2024•Document ID: 11007753

  Service Bulletin/Repair Instructions
  EXTERIOR LIGHTING

  Mfr Comm. #:

  LI82.10-P-078301

  Date Added:

  September 13, 2024

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Headlamp or 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. Headlamps comply with all applicable standards. If a pressure compensation diaphragm is fitted in the housing cover, then the lamp unit is a "closed system". Remedy 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 a defect. (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-078307. 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. Note: External damage to the headlamp/rear lamp or faulty seating of the cover caps does not present a warranty or goodwill case. With headlamps, it is possible to install desiccant packs if the problem occurs repeatedly. Open ventilation system: LI82.10-P-064766. Closed ventilation system LI82.10-P-078304

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  • DownloadMC-11007753-0001.pdf↗
• September 10, 2024•Document ID: 11007673

  Service Bulletin/Repair Instructions
  STRUCTURE:BODY

  Mfr Comm. #:

  LI98.00-P-078106

  Date Added:

  September 11, 2024

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Damage or discoloration to paint protection films on vehicle. Cause Chip protection films are a wear item that may need to be replaced over the life of the vehicle. They are typically not covered by vehicle warranty. Remedy To properly install a paint/chip protection film, please follow the below guidelines: #1 - Utilize a solution that is 0.2% soap solution (1,000ml of water + 2ml of liquid soap). #2 - Clean the paint surface and ensure it is dust-free. #2a - When cleaning, you can utilize isopropyl alcohol (Rubbing Alcohol) to assist with cleaning. #2b - We recommend a lint-free rag for secondary dusting. #3 - Wet hands with the soapy water solution to protect the adhesive surface. #4 - Remove the backing paper from the film completely. #5 - Moisten the vehicle surface with the soapy water. You can also lay the protective film with adhesive side out onto the wetted surface to also cover the adhesive layer in the soapy water solution. #6 - Remove film and flip over to gently place adhesive side against the paint surface. #7 - Working from the center out, use a squeegee to press the soapy water solution out from under the film. Use sufficient pressure to firmly press the film into the paint surface, but not an excessive amount to damage or stretch the film. #8 - Allow film and paint to "cure" until all of the moisture has evaporated. At this time the adhesive should be dried and cured enough for sufficient hold to release the vehicle.

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• September 9, 2024•Document ID: 11007790

  Service Bulletin/Repair Instructions
  EXTERIOR LIGHTING

  Mfr Comm. #:

  LI82.10-P-078304

  Date Added:

  September 14, 2024

  Manufacturer:

  MERCEDES BENZ

  Summary

  Complaint Headlamps fogged or droplets forming. Cause Due to the housing cover with pressure compensation diaphragm, the headlamps are a "closed system". This means that the headlamps are protected against acid gases, dirt and exhaust gas. However, moisture can still enter from two sources. Through absorption and desorption (the commonest cause) or through permeation. Moisture is either absorbed by the plastic material and, when the light source is switched on, it is released from the plastic by desorption, or the moisture penetrates through the plastic materials of the headlamp from outside (permeation). This can lead to the formation of condensation on the lens of the headlamp. The headlamps comply with all applicable US standards and regulations. Remedy Check headlamps for natural fogging or condensation as per LI82.10-P-078301. If a reduction in the degree of fogging is visible, the desiccant packs can be used once the condensation has completely evaporated. Note: Order service covers and desiccant packs based on the validity description. 1. Remove existing service cover with diaphragm (Picture_01 (1)). 2. Insert desiccant packs (Picture_01 (2)) into new service covers with diaphragm and seal with protective grille and bolt down (Picture_01 (3)). Note: One desiccant pack is required for each small service cover, and two desiccant packs are required for each large service cover. 3. Stick the supplied diaphragm onto the new service cover and attach at the headlamp. Note: The bonding surface must be clean and dry. 4. If the headlamp housing has an additional 2nd diaphragm, this must be covered over with masking tape. Note: The bonding surface must be clean and dry. To ensure that the desiccant pack (absorption) acts effectively, the headlamp has to be air-sealed. Observe or check the following points for this: 1. Seals at the central connector must all be present and correctly fitted (Picture_02). 2. The new transparent diaphragm must be correctly bonded (Picture_03). 3. Check headlamp housing for any external damage.

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  • DownloadMC-11007790-0001.pdf↗
• September 6, 2024•Document ID: 11007745

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; STEERING

  Mfr Comm. #:

  LI46.35-P-077911

  Date Added:

  September 12, 2024

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Partly reduced power steering assist when stationary or at low speeds, at approximately 7 MPH, such as when parking. No warning message is displayed and no fault codes are stored. Steering assist returns to normal after key cycle or at speeds greater than 7 MPH but condition may return until remedy is performed. Cause Software in the electric power steering (ES) N68. Remedy Perform software update of electric power steering (ES) N68. Disclaimer NOTE: The information contained in this document is intended for use by trained, professional technicians with the knowledge to properly and safely perform diagnosis and repairs on Mercedes-Benz vehicles, using Mercedes-Benz approved tools and equipment. It informs service technicians about conditions that could occur in certain vehicles and provides information that could assist in proper vehicle diagnosis, service, or repair. It does not indicate that a defect is present in any vehicle referenced in this document nor does it imply warranty coverage. DO NOT assume that a symptom or condition, or a described cause of a symptom or condition, affects any particular vehicle or groups of vehicles, or that a described repair applies to any particular vehicle or groups of vehicles. There can be multiple causes resulting in the same or similar symptoms or conditions described in this document, and trained professional service technicians must use their diagnostic skills to make evaluations on a case-by-case basis. The information contained in this document does not guarantee warranty coverage nor does it extend the vehicle’s warranty in any way.

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  • DownloadMC-11007745-0001.pdf↗
• August 30, 2024•Document ID: 11006690

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  LI20.30-P-078333

  Date Added:

  August 30, 2024

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint "Coolant level too low" warning message is shown in the instrument cluster. Fault code P25567B (The 'Coolant level' sensor has a malfunction. The fluid level is too low) is stored in the signal acquisition and actuation module (SAM) control unit N10. Cause The electric drive motor of the vehicle conveys air into the cooling system. The air conveyed into the cooling system leads to an air cushion forming in the expansion reservoir, which in turn causes the coolant level to fall below the warning threshold of the coolant level sensor during travel. After the cap is opened, the coolant level is once again OK. Remedy Replace the black cap A210 501 06 15 of the large working chamber of the expansion reservoir with a red cap A297 500 51 00 and increase the coolant level by 20 mm over the max. marking. On vehicles where this process does not remedy the issue, the expansion reservoir A 243 500 41 00 is replaced by the modified container A243 500 41 00 28. If the problem is still present, please create a TIPS case.

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  • DownloadMC-11006690-0001.pdf↗
• August 14, 2024•Document ID: 11006700

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  LI82.85-P-077242

  Date Added:

  August 30, 2024

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Once the head unit A26/17 is updated to the FUP4 software release E445.0, it may be the case that online connectivity is no longer available Cause E445.0 FUP4 software release Remedy Update the A26/17 - MBUX multimedia system (Head unit) software to E445.2 FUP4 Optimized or newer version to resolve the complaint.

  Associated Products (36)

  2025 Mercedes-Benz GLA-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-Class2024 Mercedes-Benz S-Class2023 Mercedes-Benz C-Class2023 Mercedes-Benz CLA-Class2023 Mercedes-Benz EQB-Class2023 Mercedes-Benz GLA-Class2023 Mercedes-Benz GLB-Class2023 Mercedes-Benz GLC-Class2023 Mercedes-Benz GLE-Class2023 Mercedes-Benz S-Class2022 Mercedes-Benz A-Class2022 Mercedes-Benz C-Class2022 Mercedes-Benz CLA-Class+ 16 more
  Associated Documents

  • DownloadMC-11006700-0001.pdf↗
• July 23, 2024•Document ID: 11005294

  Service Bulletin/Repair Instructions
  EXTERIOR LIGHTING

  Mfr Comm. #:

  LI82.10-P-078069

  Date Added:

  July 27, 2024

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Rear lamps fogged up/not leaktight. Cause Fogging of the rear lamps is a natural phenomenon, which can occur under certain climatic conditions. This does not lead to any technical impairment of the rear lamps. Remedy Rear lamp: Remedy 1: Clearing fogged/condensed rear lamps: 1. Drive the vehicle into the workshop (temperature higher than +18 °C/+64.4 °F) Note: Do not wash the vehicle or subject it to high-pressure cleaning before the defogging test. 2. Switch off the engine and connect battery support via a charger. 3. Open the trunk. 4. Switch on the exterior lighting. 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 (defogging progress).

  Associated Products (263)

  2025 Mercedes-Benz GLA-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-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-Class2023 Mercedes-Benz CLE2023 Mercedes-Benz CLS-Class+ 243 more
  Associated Documents

  • DownloadMC-11005294-0001.pdf↗
• July 15, 2024•Document ID: 11005334

  Service Bulletin/Repair Instructions
  SERVICE BRAKES; ELECTRICAL SYSTEM; FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

  Mfr Comm. #:

  LI46.10-P-078012

  Date Added:

  July 30, 2024

  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 Test Procedure: Perform an initial quick test with freeze frame data. Save the N179 - Hand detection system (HE) and N62/4 - Driver assistance system (SG-FAS) control unit logs. Note the fault frequency of fault codes set. Delete the N179 and N62/4 fault memory. Using both hands, "scan" the steering wheel all the way round, including the chrome molding at 6 o'clock (see Picture 1). Read out fault memory and follow steps below for any faults set. Remedy: Vehicles with control unit N179 - Hand detection system (HE): B1E7614: Check contacts and wiring harness in steering wheel by carrying out a visual check for damage, pinched areas, loose connections, etc. (examples in Figs. 2 and 3); If no damage is noted replace the N135 - Steering wheel electronics (LRE) and reassess. If fault code returns replace the steering wheel. Please check the wires and connections in the steering wheel. Afterwards, please check whether the complaint is caused by over torqued screws on steering wheel trim pieces. To do this, please loosen the screws slightly and reevaluate the situation. (Picture 4). P164456: Perform SCN coding. P1CA000: Perform an initial start-up on the N179 hand detection control unit. Faults in N62/4 - Driver assistance system (SG-FAS) control unit with U186B29, U0429E0, U042941, U042929, U042902, U0429E1: If no fault is stored in the N179 control unit: Scan steering wheel as indicated in the test procedure and check whether the fault is reproducible. If no fault code is stored in the hand detection control unit, the fault codes in the driver assistance systems control unit are precautionary messages. Software for the N62/4 - Driver assistance system (SG-FAS) is in preparation to reduce erroneous messages in the driver display.

  Associated Products (57)

  2024 Mercedes-Benz AMG GT2024 Mercedes-Benz C-Class2024 Mercedes-Benz CLA-Class2024 Mercedes-Benz E-Class2024 Mercedes-Benz EQB-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-Class2023 Mercedes-Benz CLS-Class2023 Mercedes-Benz E-Class2023 Mercedes-Benz EQB-Class2023 Mercedes-Benz GLA-Class2023 Mercedes-Benz GLB-Class+ 37 more
  Associated Documents

  • DownloadMC-11005334-0001.pdf↗
• July 6, 2024•Document ID: 11005235

  Service Campaign
  UNKNOWN OR OTHER

  Mfr Comm. #:

  2024060019

  Date Added:

  July 25, 2024

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY 2023-2025 EQB, GLA, and GLC vehicles (243, 247, and 254 platform), the B-pillar certification label might not contain the vehicle’s rim size, tire size, and cold tire inflation pressure information as required by FMVSS 110. In this case, relevant regulatory requirements might not be met. Mercedes-Benz believes this issue has no impact on vehicle safety. Mercedes-Benz intends to submit a petition to NHTSA for exemption from the notification and remedy requirements of 49 U.S.C. chapter 301, pursuant to 49 CFR Part 556, on the basis that this noncompliance is inconsequential as it relates to motor vehicle safety.

  Associated Products (7)

  2025 Mercedes-Benz GLA-Class2024 Mercedes-Benz EQB-Class2024 Mercedes-Benz GLA-Class2024 Mercedes-Benz GLC-Class2023 Mercedes-Benz EQB-Class2023 Mercedes-Benz GLA-Class2023 Mercedes-Benz GLC-Class
  Associated Documents

  • DownloadMC-11005235-0001.pdf↗
• June 23, 2024•Document ID: 11002619

  Service Campaign
  UNKNOWN OR OTHER

  Mfr Comm. #:

  2024060014

  Date Added:

  June 30, 2024

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY 2022-2025 GLE/GLS (167 platform), EQB (243 platform), GLA (247 platform), EQE (294 platform), EQS (296 platform), and GLC (254 platform) vehicles, the B-pillar certification label might not contain the vehicle’s rim size, tire size, and cold tire inflation pressure information as required by FMVSS 110. In this case, relevant regulatory requirements might not be met. Mercedes-Benz believes this issue has no impact on vehicle safety. Mercedes-Benz intends to submit a petition to NHTSA for exemption from the notification and remedy requirements of 49 U.S.C. chapter 301, pursuant to 49 CFR Part 556, on the basis that this noncompliance is inconsequential as it relates to motor vehicle safety. MBUSA will conduct a service campaign to remedy new vehicles in dealer inventory. An authorized Mercedes-Benz dealer will replace the certification label on the B-Pillar.

  Associated Products (8)

  2025 Mercedes-Benz GLA-Class2024 Mercedes-Benz EQB-Class2024 Mercedes-Benz GLA-Class2024 Mercedes-Benz GLC-Class2024 Mercedes-Benz GLE-Class2024 Mercedes-Benz GLS-Class2023 Mercedes-Benz EQB-Class2023 Mercedes-Benz GLA-Class
  Associated Documents

  • DownloadMC-11002619-0001.pdf↗
• June 22, 2024•Document ID: 11002618

  Service Campaign
  UNKNOWN OR OTHER

  Mfr Comm. #:

  2024060001

  Date Added:

  June 30, 2024

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY 2022-2025 GLE/GLS (167 platform), EQB (243 platform), GLA (247 platform), EQE (294 platform), EQS (296 platform), and GLC (254 platform) vehicles, the B-pillar certification label might not contain the vehicle’s rim size, tire size, and cold tire inflation pressure information as required by FMVSS 110. In this case, relevant regulatory requirements might not be met. Mercedes-Benz believes this issue has no impact on vehicle safety. Mercedes-Benz intends to submit a petition to NHTSA for exemption from the notification and remedy requirements of 49 U.S.C. chapter 301, pursuant to 49 CFR Part 556, on the basis that this noncompliance is inconsequential as it relates to motor vehicle safety. MBUSA will conduct a service campaign to remedy new vehicles in dealer inventory. An authorized Mercedes-Benz dealer will replace the certification label on the B-Pillar.

  Associated Products (10)

  2024 Mercedes-Benz EQB-Class2024 Mercedes-Benz GLA-Class2024 Mercedes-Benz GLC-Class2024 Mercedes-Benz GLE-Class2024 Mercedes-Benz GLS-Class2023 Mercedes-Benz EQB-Class2023 Mercedes-Benz GLA-Class2023 Mercedes-Benz GLC-Class2023 Mercedes-Benz GLE-Class2023 Mercedes-Benz GLS-Class
  Associated Documents

  • DownloadMC-11002618-0001.pdf↗