Mercedes-Benz C-Class Service Bulletins (2024)
374 manufacturer communications on file.
- November 1, 2024•Document ID: 11010188Over The AirELECTRICAL SYSTEM
- Mfr Comm. #:
- OTA-2024110001
- Date Added:
- November 7, 2024
- Manufacturer:
- MERCEDES-BENZ
SummaryMercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY24-25 C-Class, CLE, E-Class, GLC (206, 236, 214, 254 platform) vehicles, the infotainment system does not correspond with the latest series production configuration. The infotainment system control unit will receive an OTA software update. 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. No customer letter will be mailed for this OTA software update.
Associated Products (4)Associated Documents - November 1, 2024•Document ID: 11009552Service Bulletin/Repair InstructionsENGINE
- Mfr Comm. #:
- LI07.70-P-078547
- Date Added:
- November 1, 2024
- Manufacturer:
- MERCEDES-BENZ
SummaryComplaint Engine idle fluctuates or stumbles at approximately 5-10 second intervals. No relevant fault codes are stored. Cause Under analysis Remedy Do not replace parts or perform control unit software updates/adaptations. Create a TIPS case and submit to the powertrain team with the below information: -Video showing the tachometer or actual values from XENTRY diagnosis when symptom present -Quick test -N3/10 MRG2 control unit log -N73/3 EZS control unit log
Associated Products (5)Associated Documents - October 25, 2024•Document ID: 11009517Service Bulletin/Repair InstructionsENGINE
- Mfr Comm. #:
- LI01.00-P-078512
- Date Added:
- October 30, 2024
- Manufacturer:
- MERCEDES-BENZ
SummaryComplaint Engine is making abnormal noise at idle. May be described as rattle, tapping, or knocking. Cause Various Remedy If necessary compare the noise to a like vehicle and if determined to be abnormal proceed with below steps. Submit a TIPS case to the powertrain team with details from the below checks: Check engine maintenance history and oil level. Determine location where noise is most noticeable on engine. Does noise change with engine RPM? Record a video of the noise. Switch off injectors with XENTRY diagnosis one at a time and check if noise changes. Borescope cylinders with pistons at lowest point of travel and document findings with photos.
Associated Products (5)Associated Documents - October 23, 2024•Document ID: 11009125Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- LI54.30-P-078529
- Date Added:
- October 25, 2024
- Manufacturer:
- MERCEDES-BENZ
SummaryComplaint During cold starting, a tortoise symbol may be displayed in the event of reduced engine output. (see attachment) For "non-hybrid vehicles", the thermostat symbol must be displayed. (see attachment) Cause SCN Coding of the N133/1 IC-Instrument-Cluster Remedy Perform N133/1 IC-Instrument-Cluster manual SCN coding.
Associated Products (3)Associated Documents - October 23, 2024•Document ID: 11009122Service Bulletin/Repair InstructionsSTRUCTURE:BODY; VISIBILITY/WIPER
- Mfr Comm. #:
- LI82.35-P-078467
- Date Added:
- October 25, 2024
- Manufacturer:
- MERCEDES-BENZ
SummaryComplaint 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.
Associated Products (265)2025 Mercedes-Benz GLA-Class2025 Mercedes-Benz GLB-Class2025 Mercedes-Benz GLE-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-Class+ 245 moreAssociated Documents - October 22, 2024•Document ID: 11009138Service Bulletin/Repair InstructionsELECTRICAL SYSTEM; EXTERIOR LIGHTING
- Mfr Comm. #:
- LI82.10-P-078470
- Date Added:
- October 25, 2024
- Manufacturer:
- MERCEDES-BENZ
SummaryComplaint 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 HLI control unit. Cause Older software release, HLI control units Remedy Update of HLI control units (E1n9 / E2n9)
Associated Products (7)Associated Documents - October 16, 2024•Document ID: 11008977Service Bulletin/Repair InstructionsENGINE; ELECTRICAL SYSTEM
- Mfr Comm. #:
- LI15.40-P-077947
- Date Added:
- October 18, 2024
- Manufacturer:
- MERCEDES-BENZ
SummaryComplaint Combustion engine could no longer be started, only electric driving possible. Cause High-voltage belt-driven starter-alternator faulty. Remedy Requirement: Prior to the implementation of the test work, it must be ensured that the person carrying out this work has successfully completed the required HV qualification to work on HV system.
Associated Products (15)2024 Mercedes-Benz AMG GT2024 Mercedes-Benz C-Class2024 Mercedes-Benz GLC-Class2024 Mercedes-Benz S-Class2023 Mercedes-Benz AMG GT2023 Mercedes-Benz C-Class2023 Mercedes-Benz GLC-Class2023 Mercedes-Benz S-Class2022 Mercedes-Benz AMG GT2022 Mercedes-Benz C-Class2022 Mercedes-Benz S-Class2021 Mercedes-Benz AMG GT2021 Mercedes-Benz S-Class2020 Mercedes-Benz AMG GT2019 Mercedes-Benz AMG GTAssociated Documents - October 16, 2024•Document ID: 11009036Service Bulletin/Repair InstructionsWHEELS; ELECTRICAL SYSTEM
- Mfr Comm. #:
- LI54.71-P-078498
- Date Added:
- October 22, 2024
- Manufacturer:
- MERCEDES-BENZ
SummaryComplaint "Active Emergency Stop Assist Currently Unavailable" and "Active Steering Assist Inoperative" instrument cluster messages along with Tire Pressure Light on in Instrument Cluster. Cause Both systems are temporarily unavailable due to low tire pressures. An active tire pressure monitor light may result in some assistance features being temporarily unavailable until tire pressures are corrected. Remedy Check/adjust tire pressures and reset monitoring through the instrument cluster.
Associated Products (58)2024 Mercedes-Benz C-Class2024 Mercedes-Benz CLA-Class2024 Mercedes-Benz CLE2024 Mercedes-Benz E-Class2024 Mercedes-Benz GLC-Class2024 Mercedes-Benz GLE-Class2024 Mercedes-Benz S-Class2024 Mercedes-Benz SL-Class2023 Mercedes-Benz C-Class2023 Mercedes-Benz CLA-Class2023 Mercedes-Benz GLC-Class2023 Mercedes-Benz GLE-Class2023 Mercedes-Benz S-Class2023 Mercedes-Benz SL-Class2022 Mercedes-Benz C-Class2022 Mercedes-Benz CLA-Class2022 Mercedes-Benz GLE-Class2022 Mercedes-Benz S-Class2022 Mercedes-Benz SL-Class2021 Mercedes-Benz AMG GT+ 38 moreAssociated Documents - October 4, 2024•Document ID: 11008885Service CampaignELECTRICAL SYSTEM
- Mfr Comm. #:
- NCU - 2024090017
- Date Added:
- October 9, 2024
- Manufacturer:
- MERCEDES-BENZ
SummaryMercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY 2023 2024 C-Class (206 platform) and GLC (254 platform) vehicles, the door control unit software does not correspond to current production specifications. In this case, the 12V starter battery may sporadically discharge. MBUSA will conduct a service campaign. An authorized Mercedes-Benz dealer will update the door control unit software.
Associated Products (4)Associated Documents - October 3, 2024•Document ID: 11008883Service Bulletin/Repair InstructionsSEATS
- Mfr Comm. #:
- LI91.10-P-076097
- Date Added:
- October 9, 2024
- Manufacturer:
- MERCEDES-BENZ
SummaryComplaint Play/noise at height adjuster or in seat guide rail on front seats Cause Tolerances and variations in the manufacturing process Remedy Review of barcode adhesive label on air intake pipe of height adjuster. The seat frame base with the height adjuster motor can be replaced if the production status is lower than E105 (pic.1: seat label) If the production status is higher than or equal to E105, please create a TIPS case with videos and photos and send to B/C/E inbox. In isolated cases, the label may be located on the inside of the air intake pipe; for this, the seat cushion must be removed.
Associated Products (6)Associated Documents - October 3, 2024•Document ID: 11008879Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- LI82.85-P-078068
- Date Added:
- October 9, 2024
- Manufacturer:
- MERCEDES-BENZ
SummaryComplaint This document applies to vehicles of model series 206 and 254 from SOP (start of production) with NTG7, that do not have SA code 367: The Live Traffic Information Digital Extra is missing, is not available or does not work, even though the license has been purchased from the Mercedes me Store. Cause Problem with the store's offer provision for Digital Extras. Remedy Remedial action is currently being prepared. For the time being, do not undertake any work (SW updates, commissioning, hardware exchanges and similar). These are not effective, as an adaptation of the back end needs to be carried out first. For now, please do not add (arrange to add) SA code 367 manually. As soon as the adaptation has been implemented, this document will be modified accordingly and the necessary steps added. If a customer does not wish to wait for the fix, please direct them to contact the CAC for a refund of the Live Traffic service.
Associated Products (5)Associated Documents - October 3, 2024•Document ID: 11008880Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- LI82.85-P-078473
- Date Added:
- October 9, 2024
- Manufacturer:
- MERCEDES-BENZ
SummaryComplaint 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.
Associated Products (134)2025 Mercedes-Benz GLA-Class2024 Mercedes-Benz C-Class2024 Mercedes-Benz CLA-Class2024 Mercedes-Benz EQB-Class2024 Mercedes-Benz G-Class2024 Mercedes-Benz GLA-Class2024 Mercedes-Benz GLB-Class2024 Mercedes-Benz GLE-Class2024 Mercedes-Benz GLS-Class2024 Mercedes-Benz S-Class2024 Mercedes-Benz SL-Class2023 Mercedes-Benz C-Class2023 Mercedes-Benz CLA-Class2023 Mercedes-Benz CLS-Class2023 Mercedes-Benz E-Class2023 Mercedes-Benz EQB-Class2023 Mercedes-Benz G-Class2023 Mercedes-Benz GLA-Class2023 Mercedes-Benz GLB-Class2023 Mercedes-Benz GLE-Class+ 114 moreAssociated Documents - October 1, 2024•Document ID: 11008873Service Bulletin/Repair InstructionsPOWER TRAIN
- Mfr Comm. #:
- LI27.00-P-074450
- Date Added:
- October 9, 2024
- Manufacturer:
- MERCEDES-BENZ
SummaryComplaint Tension-releasing impact of the propeller shaft with the force-free in D "KID" function, after vehicle has stopped. Cause The tension-releasing jolt in the drivetrain originates as a result of the "release" of energy stored when braking through the force-free switch after stopping. It is suspected that the longitudinal bearing is being placed under tension here as a result of the vehicle "dropping off". Remedy 1. Mark the installation position of the joint prior to the removal (picture a+b). This is important for vehicles with a weighted drivetrain ex factory to ensure correct installation after operations have been completed. 2. Clean and degrease propeller shaft toothing. The toothing must be free of grease, e.g. through the use of a brake cleaner. Do not use wire brushes, else the surface could be damaged (picture c). 3. Coat propeller shaft toothing with A 000 989 16 08 Antifriction coating. Coat the entirety, ensuring that the subsurface is no longer visible. When doing so, only coat the outer toothing. Ensure that the coat is not too thick, otherwise the coating could chip (picture d). 4. Observe the drying time of at least 1 hour. 5. Lightly grease the propeller shaft toothing at the outer and inner toothing with A 001 989 44 51 12 Grease (picture e).
Associated Products (44)2024 Mercedes-Benz C-Class2024 Mercedes-Benz S-Class2023 Mercedes-Benz C-Class2023 Mercedes-Benz E-Class2023 Mercedes-Benz S-Class2022 Mercedes-Benz C-Class2022 Mercedes-Benz E-Class2022 Mercedes-Benz S-Class2021 Mercedes-Benz C-Class2021 Mercedes-Benz E-Class2021 Mercedes-Benz S-Class2020 Mercedes-Benz C-Class2020 Mercedes-Benz E-Class2020 Mercedes-Benz S-Class2019 Mercedes-Benz C-Class2019 Mercedes-Benz E-Class2019 Mercedes-Benz S-Class2018 Mercedes-Benz C-Class2018 Mercedes-Benz E-Class2018 Mercedes-Benz S-Class+ 24 moreAssociated Documents - September 28, 2024•Document ID: 11008091Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- LI82.70-P-077433
- Date Added:
- September 28, 2024
- Manufacturer:
- MERCEDES-BENZ
SummaryComplaint 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.
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 moreAssociated Documents - September 27, 2024•Document ID: 11008081Service CampaignELECTRICAL SYSTEM; STRUCTURE:BODY
- Mfr Comm. #:
- 2024090014
- Date Added:
- September 27, 2024
- Manufacturer:
- MERCEDES-BENZ
SummaryMercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY 2024 C-Class and E-Class (206 and 214 platform) vehicles, the electronic ignition lock control unit does not correspond to current specifications. As a result, the ignition lock may not react after a key cycle, which could result in the vehicle not starting and the instrument cluster display not reacting. MBUSA will conduct a service campaign. An authorized Mercedes-Benz dealer will update the electronic ignition lock control unit software.
Associated Products (2)Associated Documents - September 27, 2024•Document ID: 11008080Service CampaignUNKNOWN OR OTHER
- Mfr Comm. #:
- 2024080004
- Date Added:
- September 27, 2024
- Manufacturer:
- MERCEDES-BENZ
SummaryIssue Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY 2024 S-Class and EQS (223 and 297 platform) vehicles, the DRIVE PILOT Supplemental Booklet does not correspond to current production specifications. What We’re Doing MBUSA will conduct a service campaign. An authorized Mercedes-Benz dealer will replace the DRIVE PILOT supplemental booklet.
Associated Products (5)Associated Documents - September 27, 2024•Document ID: 11008073Service CampaignELECTRICAL SYSTEM; UNKNOWN OR OTHER
- Mfr Comm. #:
- 2024090002
- Date Added:
- September 27, 2024
- Manufacturer:
- MERCEDES-BENZ
Summary1. Connect XENTRY Diagnosis. 2. Update Digital Operator's Manual. To do this, select menu item "Quick test view . A26/17 - MBUX multimedia system (head unit) . Adaptations . Control unit update . Update of control unit software". Then follow the user guidance in XENTRY Diagnosis. The Digital Operator's Manuals are downloaded automatically via Retail Data Storage to XENTRY Diagnosis to match the affected vehicle. 3. Disconnect XENTRY Diagnosis. 4. Put the Operator’s Manual, supplements and accordion-fold document into the vehicle document wallet and place inside the vehicle. The missing Operator’s Manual, supplements and accordion-fold document must be enclosed subsequently.
Associated Products (1)Associated Documents - September 25, 2024•Document ID: 11008065Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- LI00.20-P-078424
- Date Added:
- September 27, 2024
- Manufacturer:
- MERCEDES-BENZ
SummaryCause The following conditions can occur on vehicles with a disconnected on-board electrical system battery 12V/48V): • The period in which the on-board electrical system battery is disconnected cannot be counted by the maintenance computer. • As soon as the on-board electrical system battery is connected again, the maintenance computer automatically starts counting without making a correction to the remaining time (days to next due service). Remedy Allowance must be made for vehicles with disconnected on-board electrical system battery. The following process must be complied with to achieve a correct calculation: • (A): The number of days from the "day of vehicle handover or the last conducted Service A/B" onward up to the "day on which the vehicle arrived at the workshop". • (B): Remaining time (days to next due service date shown on instrument cluster). • (C): Days on which the on-board electrical system battery was disconnected. The formula requires the following condition to be complied with. 365 - (A) [days] = (B) - (C) [days] If the on-board electrical system battery (12V/48V) was not disconnected and the remaining time shown on the instrument cluster in the customer or workshop menu (days to next due service) is implausible or the formula was not complied with please create a TIPS case and attach the control unit logs from the instrument cluster and the PTCU as well as a quick test with freeze frame data.
Associated Products (6)Associated Documents - September 21, 2024•Document ID: 11007974Service Bulletin/Repair InstructionsEXTERIOR LIGHTING
- Mfr Comm. #:
- LI82.10-P-078307
- Date Added:
- September 24, 2024
- Manufacturer:
- MERCEDES-BENZ
SummaryComplaint 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
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 moreAssociated Documents - September 18, 2024•Document ID: 11008035Service Bulletin/Repair InstructionsENGINE
- Mfr Comm. #:
- LI15.40-P-077947
- Date Added:
- September 25, 2024
- Manufacturer:
- MERCEDES-BENZ
SummaryComplaint Combustion engine could no longer be started, only electric driving possible Cause High-voltage belt-driven starter-alternator faulty Remedy Requirement: Prior to the implementation of the test work, it must be ensured that the person carrying out this work has successfully completed the qualification "T1716F Diagnosis at high voltage level 4" and the vehicle-specific training. Note: In order to check whether the high-voltage belt-driven starter-alternator is faulty, please carry out the test below. If the fault "P0E2F00 The electrical fuse B for the high voltage has a malfunction" is stored in the N82/10 BMS control unit, the HV protocol must be checked to see whether the fuse for the auxiliary consumers is defective. In this case, the high-voltage battery must be replaced after the short circuit has been eliminated. (See attachment) The faulty high-voltage belt-driven starter-alternator must always be sent back via the existing return delivery process for analysis. Check: Please disconnect the high-voltage plug at the high-voltage belt-driven starter-alternator and connect test adapter 000 589 94 63 00. Measure resistance HV+ to HV-. If the final measurement result is between 0–1 ohm, the high-voltage belt-driven starter-alternator with the short circuit must be replaced. If either one of or both the fault codes P0C0B16 and P0C0B17 are saved in the high-voltage belt-driven starter-alternator control unit G2/3, please replace the high-voltage belt-driven starter-alternator, since no short circuit can be measured here and this therefore concerns a hardware defect. Please check the serial number on the silver adhesive label below the SW number on the front of the high-voltage belt-driven starter- alternator. Example: 2314300044 (the first 10 digits, see attachment) Important note: If the number is greater than 2329100027, a TIPS case must be created. In this instance, please attach the following documents to the TIPS case: • Quick test • High-voltage event log • Picture of the silver adhesive label on the front of the high-voltage belt-driven starter-alternator (serial number) • Attach the measurement results with pictures
Associated Products (6)Associated Documents