Mercedes-Benz E-Class Service Bulletins

1,085 manufacturer communications on file.

• 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 ***

  Associated Products (49)

  2025 Mercedes-Benz C-Class2025 Mercedes-Benz E-Class2025 Mercedes-Benz EQB-Class2025 Mercedes-Benz GLA-Class2025 Mercedes-Benz GLB-Class2025 Mercedes-Benz GLC-Class2025 Mercedes-Benz GLE-Class2025 Mercedes-Benz S-Class2025 Mercedes-Benz SL-Class2024 Mercedes-Benz C-Class2024 Mercedes-Benz CLA-Class2024 Mercedes-Benz CLE2024 Mercedes-Benz E-Class2024 Mercedes-Benz EQB-Class2024 Mercedes-Benz GLA-Class2024 Mercedes-Benz GLB-Class2024 Mercedes-Benz GLC-Class2024 Mercedes-Benz GLE-Class2024 Mercedes-Benz S-Class2024 Mercedes-Benz SL-Class+ 29 more
  Associated Documents

  • DownloadMC-11017217-0001.pdf↗
• April 21, 2025•Document ID: 11017211

  Service Bulletin/Repair Instructions
  SUSPENSION

  Mfr Comm. #:

  LI35.10-P-078931

  Date Added:

  April 24, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Potential corrosion on the rear axle carrier Cause Due to market-specific conditions such as moisture, ingress of dirt, and environmental influences, corrosion may be present on the rear axle carrier Remedy In the event of a complaint, the optimized repair method must be used when replacing the rear axle carrier. The repair method for the relevant model series can be found in the attachment. Repair packages are available in Xentry Repair Packages for the special processing of rear axle carriers *Note - Please reach out to special tools to procure new flexible wand for cavity wax application. It improves coverage and reduces labor efforts.

  Associated Products (24)

  2020 Mercedes-Benz SLC-Class2019 Mercedes-Benz SLC-Class2018 Mercedes-Benz SLC-Class2017 Mercedes-Benz SLC-Class2017 Mercedes-Benz SLK-Class2016 Mercedes-Benz E-Class2016 Mercedes-Benz SLC-Class2016 Mercedes-Benz SLK-Class2015 Mercedes-Benz C-Class2015 Mercedes-Benz E-Class2015 Mercedes-Benz SLK-Class2014 Mercedes-Benz C-Class2014 Mercedes-Benz E-Class2014 Mercedes-Benz SLK-Class2013 Mercedes-Benz C-Class2013 Mercedes-Benz E-Class2013 Mercedes-Benz SLK-Class2012 Mercedes-Benz C-Class2012 Mercedes-Benz E-Class2012 Mercedes-Benz SLK-Class+ 4 more
  Associated Documents

  • DownloadMC-11017211-0001.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.

  Associated Products (11)

  2025 Mercedes-Benz C-Class2025 Mercedes-Benz E-Class2025 Mercedes-Benz GLC-Class2024 Mercedes-Benz C-Class2024 Mercedes-Benz CLE2024 Mercedes-Benz E-Class2024 Mercedes-Benz GLC-Class2024 Mercedes-Benz GLE-Class2023 Mercedes-Benz C-Class2023 Mercedes-Benz GLC-Class2022 Mercedes-Benz C-Class
  Associated Documents

  • 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

  Associated Products (20)

  2022 Mercedes-Benz E-Class2022 Mercedes-Benz GLC-Class2022 Mercedes-Benz GLE-Class2022 Mercedes-Benz GLS-Class2021 Mercedes-Benz E-Class2021 Mercedes-Benz GLC-Class2021 Mercedes-Benz GLE-Class2021 Mercedes-Benz GLS-Class2020 Mercedes-Benz E-Class2020 Mercedes-Benz GLC-Class2020 Mercedes-Benz GLE-Class2020 Mercedes-Benz GLS-Class2019 Mercedes-Benz E-Class2019 Mercedes-Benz GLC-Class2018 Mercedes-Benz E-Class2018 Mercedes-Benz GLC-Class2017 Mercedes-Benz E-Class2017 Mercedes-Benz GLC-Class2016 Mercedes-Benz E-Class2016 Mercedes-Benz GLC-Class
  Associated Documents

  • DownloadMC-11017206-0001.pdf↗
• April 21, 2025•Document ID: 11017134

  Service Bulletin/Repair Instructions
  STRUCTURE:BODY

  Mfr Comm. #:

  LI88.85-P-079176

  Date Added:

  April 23, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Trim strip(s) on the front bumper loose without damage to body or impact. Cause One or several locking clips on the trim strip are broken. Remedy Only applies to vehicles up to FIN end number: 214 xxx xx 159 188 Only applies to trim strips with the SA code "772+PUF" -> A 214 885 7802 -> A 214 885 7702 If the conditions mentioned apply, the defective trim strip must be replaced.

  Associated Products (1)

  2025 Mercedes-Benz E-Class
  Associated Documents

  • DownloadMC-11017134-0001.pdf↗
• April 21, 2025•Document ID: 11017127

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; SEATS

  Mfr Comm. #:

  LI91.10-P-078305

  Date Added:

  April 22, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint The "Easy entry and exit feature" function deactivates itself after a brief period. Cause The cause is currently being investigated. Remedy A remedy is currently not available. A software update in the seat control unit does not solve the problem. The document will be updated once the reason has been analyzed and a remedy is available.

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  Associated Documents

  • DownloadMC-11017127-0001.pdf↗
• April 21, 2025•Document ID: 11017119

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  LI82.85-P-079087

  Date Added:

  April 22, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint A popup is seen on the HU with the message "data connection temporarily not available". Potentially affected functionalities in NTG4.5, NTG5 1.Weather 2.Local Search 3.IP Radio 4.Send2Car 5.Speech Detection Service 6.E-Navigator 7.iHeartRadio 8.Traffic Cams Cause Analysis ongoing. Remedy Please track the LI for further updates. Note: Please do not create TIPS cases. Please do not replace any components. HU/Hermes SW update / SCN coding will not fix the issue.

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  Associated Documents

  • DownloadMC-11017119-0001.pdf↗
• April 11, 2025•Document ID: 11017516

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; STEERING

  Mfr Comm. #:

  LI46.10-P-078012

  Date Added:

  May 2, 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 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. Test: Please flash the IDC (N62/4) software A223 902 75 37 (only applies to HOSWD223). Erase fault memory Reset the HOSWD control unit in line with the guided test in Xentry. 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: 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 -> replace steering wheel rim. 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 defect is visible: Please do not replace the steering wheel, but wait for new coding parameters which should be available 05/2025. 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. B1E7713: 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 now available for Star 3 vehicles only. Fault in IDC223 control unit: U186B29: Delete fault memory and flash the new IDC (N62/4) software A223 902 75 37. If the software update is not available, or the problem persists, create a TIPS case. Fault in IDC213 control unit: U0429E0, U042941, U042929, U042902, U0429E1: If no fault is stored in the HOSWD control unit then scan the steering wheel and check whether the fault is reproducible. If reproducible: Create a TIPS case, adding the

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  Associated Documents

  • DownloadMC-11017516-0001.pdf↗
• April 7, 2025•Document ID: 11017037

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  LI54.71-P-079104

  Date Added:

  April 15, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Traffic sign symbol for "Traffic Sign Assist" is blinking in instrument cluster without obvious cause usually with one of the following scenarios: • Flashing without a speed limit ("- -"). • Flashing when current vehicle speed is under speed limit. • Flashing between US speed limit symbol and European speed limit symbol. Cause Under Investigation Remedy Under investigation. One option is to turn off Traffic Sign Assist until the investigation is completed. Once completed this LI will be updated. No TIPS case is necessary. Do not replace parts.

  Associated Products (39)

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  Associated Documents

  • DownloadMC-11017037-0001.pdf↗
• April 7, 2025•Document ID: 11017229

  Service Bulletin/Repair Instructions
  SERVICE BRAKES

  Mfr Comm. #:

  LI42.10-P-063502

  Date Added:

  April 25, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Noises/ squealing from the service brake in various driving situations and ambient conditions. Cause Frictional vibrations Remedy AMG brake systems are designed for high loads. This can result in noises under certain operating conditions and driving styles. Please refer to the Operator's Manual for further information such as care and maintenance instructions (washing vehicle directly after heavy use and using approved cleaning agents). These are dependent on speed, brake pressure or ambient conditions such as temperature and air humidity. 1. Beginning Diagnostics: a) Check whether the complaint can be reproduced and at which axle or side the noises occur (ideally together with the customer while driving). b) Check the affected system for component wear, mechanical damage or localized overheating damage. Replace damaged components as necessary. c) Assess condition of brake rotors and pads per WIS and visually (i.e. long periods of stagnation, etc...). d) Clean brake components free of brake dust and debris. d) Secure vehicle on a lift. 1. Start the engine and depress the brake pedal 3-4 times. 2. Check each wheel to see if they turn freely by hand. 3. If a wheel is not turning freely by hand, this needs to be addressed prior to re-assessing the noise concern. e) Check whether, apart from this document, an additional document exists for the specific model in question, and if so, work through it and then continue. 2. Specific Axle Work: NOTE: If the brake pad has a metal backing plate, there is no need to affix the adhesive film. a) If the noises are coming from the front axle => Affix linings with adhesive film (see attachments for front axle). If backing plate is installed on pads, move to step 3. 1. Remove brake linings of front axle. 2. Clean all contact points on brake lining and brake caliper/carrier. 3. Clean bonding surface (where pistons contact back of brake pad). Apply adhesive film to the backplate of the piston-side brake lining where the piston contacts the pad backing plate. See picture "Adhesive and Paste Application Area". 4. Chamfer edges (round off sharp leading edges) on brake pads. See picture "Chamfered Pads". 5. Apply heat-resistant lubricating paste to the sides of the backing plate. See picture "Adhesive and Paste Application Area". 6. After installing the brake linings, actuate the brake for 30 seconds. b) If the noises are coming from the rear axle => Affix linings with adhesive film and grease the lining as per the specification (see attachments for rear axle). 1. Remove brake pads of rear axle. 2. Cleaning all contact points on brake lining and brake caliper/carrier. 3. Grease contact points (red areas) between brake lining and guide of brake caliper with heat-resistant lubricating paste. 4. Clean bonding surface (where pistons contact back of brake pad). Apply adhesive film to the backplate of the piston-side brake lining. 5. Chamfer edges (round off sharp leading edges) on brake pads. See picture "Chamfered Pads". IMPORTANT: Be absolutely certain to not allow paste between friction surfaces of the pad and disc! 3. Brake Bedding Process: a) Before trip, the mileage incurred must be clarified with the customer (approx. 30 miles). b) Select a suitable route so speeds of approximately 65 MPH can be achieved. c) If the vehicle is an AMG P3 Hybrid, switch off recouperation prior to bedding in brakes. d) Brake the vehicle 15 times with a brake pressure of approx. 30 bar (have the passenger read it out using XENTRY) from 62 MPH to 30 MPH (no emergency stops and no braking in the ESP control range). Maintain a cooling distance of approx. 1 mile between brake applications. e) Finally drive approx. 3 miles to allow the system to cool. f) Reassess noise.

  Associated Products (166)

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  Associated Documents

  • DownloadMC-11017229-0001.pdf↗
• April 4, 2025•Document ID: 11017038

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  LI35.30-P-079142

  Date Added:

  April 15, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Cracking noises on load change from rear axle (can be heard from wheel side). Cause Unfavorable manufacturing tolerances in the production process of the drive shaft. Remedy If the above-mentioned customer complaint is present, perform the following operation steps: 1. A test drive must be performed. 2. For a precise noise analysis (localization of the noise), make use of the noise case. If the side shafts of the rear axle have been unequivocally identified as the cause (source of the noise), both side shafts at the rear axle must be replaced. The following part numbers must be installed: • A 214 350 44 06 Side shaft

  Associated Products (1)

  2025 Mercedes-Benz E-Class
  Associated Documents

  • DownloadMC-11017038-0001.pdf↗
• April 1, 2025•Document ID: 11017039

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  LI83.20-P-051802

  Date Added:

  April 15, 2025

  Manufacturer:

  MERCEDES BENZ

  Summary

  Complaint Vehicle with atypical reduced heat output. Cause Silicate granulate may have escaped from a damaged bag in the expansion reservoir (not visible), reducing the coolant flow in the heater heat exchanger (see picture). Remedy With the aforementioned complaint, make sure that the cooling circuit is inspected for silicate residues after all standard tests are completed. The silicate residues tend to accumulate upstream of the shutoff valve for the heater hot water pulsed valve. If there are silicate residues in the coolant, the engine must be flushed thoroughly. To make sure that all silicate residues are removed from the cooling circuit, the following parts must also be replaced (cleaning of these components is not sufficient): Coolant expansion reservoir, radiator, oil/water heat exchanger (oil cooler), heater valve, heat exchanger of heater, coolant and, if installed, the electric water pump for the residual heat utilization system. Determine the parts for the respective vehicle in the EPC.

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  Associated Documents

  • DownloadMC-11017039-0001.pdf↗
• March 28, 2025•Document ID: 11016159

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  LI54.71-P-078802

  Date Added:

  April 1, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

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

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  Associated Documents

  • DownloadMC-11016159-0001.pdf↗
• March 25, 2025•Document ID: 11016221

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  LI54.10-P-069698

  Date Added:

  April 1, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint This LI does Not apply to 223 or 206 which use a different generation of 48V systems. Please follow the relevant guided tests for the 223 and 206. For 223 with fault code B1FCB97 follow LI54.10-P-076026. Various causes are possible. The faults listed in the various causes do not all have to be present at all times. Some of these complaints may overlap. Rely on the faults listed in the Cause section for identifying the correct Remedy. 1. No start 2. Yellow or red instrument cluster message for 48 V on-board electrical system battery (G1/3) 3. Limp home mode, overheating, A/C not blowing cold, or loss of acceleration 4. Check Engine Light Cause Cause 1: Software causes Intermittent No Starts with fault B183387 in DC/DC converter N83/1 Cause 2: Software causes Permanent No Start with fault B183349. May also have fault B183371. Cause 3: Hardware short circuit in 48V system causes fault B183319 in 48V battery. May also have fault B183371. Cause 4: Internal 48V battery Peltier cooling element failure causes fault B183397 Cause 5: This will Always have fault code B183371 but different from cause 2 and 3 -- it will Not have B183349, B183319, or any other faults in the 48V battery. This will only have fault B183371 in 48V battery. Cause 5 is from the 48V battery detecting an abnormality which then causes the 48V battery to disconnect itself. The disconnected 48V battery then causes subsequent symptoms: Limp Home Mode, overheating, A/C not blowing cold, or loss of acceleration Cause 6: Check Engine Light with fault P0606F1 in the N127 PTCU Cause 7: Check Engine Light with possible no start and fault P057FF1 Remedy Note: each of these remedies correspond to a specific cause. Make sure to match correct Cause with Remedy. Remedy 1: 1. Check the 12V power supply and LIN connection 2. Update software in G1/3 (48V battery) using newest XENTRY software and Add-ons 3. Road test and release vehicle if no further symptoms Remedy 2: 1. Charge the 12V battery (Charging current <5A) 2. Update software in G1/3 (48V battery) using newest XENTRY software and Add-ons 3. Road test and release vehicle if no further symptoms If the faults return or cannot be cleared: 1. XENTRY MUST be connected with VCI cable to correctly complete this remedy. 2. Complete guided test for B183349. 3. If guided test completes, vehicle starts, and drive cycles show no further symptoms, release vehicle. 4. If after guided test completes, XENTRY states to replace 48V battery: replace only 48V battery. If vehicle is a MY21 w/M256 engine, update SW in 48V battery 5. If this is a repeat visit for fault B183349 and guided test has already been completed, open a TIPS case. 6. If guided test does not complete OR symptoms are still present open a TIPS case. 7. If communication cannot be established with 48V battery perform physical layer check at 12V wiring to DCDC. If no abnormalities found, replace the 48V battery. 8. If guided test completes but a new fault code is present (such as B183319, B183371, etc.) follow the relevant Cause/Remedy for that fault in this LI. Remedy for 3: 1. If fault is not Current (only Stored): 1. Update software in G1/3 (48V battery) using newest XENTRY software and Add-ons 2. Road test and release vehicle if no further symptoms If the faults return or this is a second visit after the SW update: 1. Complete the guided test for B183319 2. Perform XENTRY actuations for all 48V components. 3. Create a TIPS case with ALL Preliminary measures required as noted below for Remedy 5 4. Upload to TIPS case ISA performance data from the N129. 5. ISA performance data location in XD: 6. N129 control unit under Special Procedures 7. "Procedures for support queries to market support" 8. "Collation of diagnosis performance data" 9. "engine at idle" 10. After next screen loads with data click continue. The next screen will show where the .CSV file is located in your XENTRY. Navigate to this location in XD and upload this CSV file to the case. 11. Note it is impor

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• March 24, 2025•Document ID: 11016043

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  LI27.35-P-079039

  Date Added:

  March 27, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint A clicking/ticking/taping noise from underneath the vehicle with engine off during ECO stop event or after parking See video for example Cause Noise originates within the transmission valvebody Remedy Take a video from underneath vehicle recording the noise Pull EEPROM data, Inital Quick Test, and Control Unit Log Please open a TIPs case providing all data to assess next steps.

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  Associated Documents

  • DownloadMC-11016043-0001.pdf↗
• March 21, 2025•Document ID: 11016036

  Over The Air
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  OTA - 5496434

  Date Added:

  March 27, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, the mobile device connection control unit software does not correspond to current production specifications. The mobile device connection control unit will receive an over-the-air (OTA) software update which improves general system stability and device compatibility for the Digital Vehicle Key functionality. The update is downloaded in the background and the customer will be prompted to accept or decline installation during the following ignition cycle. 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.

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  Associated Documents

  • DownloadMC-11016036-0001.pdf↗
• March 18, 2025•Document ID: 11015813

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; BACK OVER PREVENTION: WARNINGS

  Mfr Comm. #:

  LI54.71-P-078802

  Date Added:

  March 19, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint MBUX headunit display with red text box "System Inoperative". ONLY for vehicles with SA code (549+21U) or (549+U19). Cause Under analysis. Remedy For chassis 118, 167, 177, 213, 238, 243, 247, 253, and 293 use Xentry to update headunit (A26/17). Target software number is 247 904 6600 (E905.4). If vehicle fits all criteria and target software is not available via Xentry, please open an XSS ticket.

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  Associated Documents

  • DownloadMC-11015813-0001.pdf↗
• March 13, 2025•Document ID: 11015626

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; POWER TRAIN

  Mfr Comm. #:

  LI47.70-P-078563

  Date Added:

  March 17, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint - Engine diagnosis indicator lamp (MIL) lights up. - Current and saved fault code in DCCU and powertrain control unit (PTCU): P2E9873 The position sensor of the external socket flap of the vehicle socket (direct current) indicates an electrical fault. The actuator does not open. - The vehicle starts or charges normally and without any problems. Cause Software in the control unit "N116/5 - DC charge-connection unit (DCCU)". Remedy For model series 167 (Only for USA): • Remedy is available: • Update software for N116/5 (DC charging control unit box) and perform SCN coding of N116/5. • Once the SCN coding has been updated, the engine diagnosis indicator lamp (MIL) is no longer actuated with this fault code. For other model series: • Work on the SW remedy for N116/5 (DC charging control unit box) is in progress. • Once the software is available, update the software for N116/5 and perform SCN coding of N116/5. • If this problem occurs, the vehicle start or charging functions are normally not affected; therefore do not replace any parts. • Replacing parts does not solve this problem.

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  Associated Documents

  • DownloadMC-11015626-0001.pdf↗
• March 12, 2025•Document ID: 11015616

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  LI35.31-P-066469

  Date Added:

  March 14, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint Possible humming noises from the drivetrain in the area of the rear axle, especially during tight cornering in the lower speed range. Cause Additives in rear axle differential oil Remedy Note: Please follow the instructions in this document. The replacement of components (other than those named for processing) is not effective. Remedy: A test drive must be performed. For accurate analysis (localization) of the noise, the "Steelman Chassis Ear" noise diagnosis kit can be used, for example. If the rear axle differential is unambiguously identified as the cause (noise source), the oil must be replaced. Observe the following: 1. Warm up the oil in the differential by means of a short test drive. 2. Drain the oil from the differential and fill it with new oil according to the parts list in the attachment. Please follow the procedure described in AR.35.31-P-0523OLC. Note: To ensure that the differential is drained as completely as possible, both rear wheels should be rotated slowly 2-3 turns while draining. Make sure that as little residual oil as possible remains in the differential. 3. Please advise the customer that in isolated cases the problem may continue to occur for another 30 to 60 miles after the oil has been replaced. If the problem is still present after the appropriate mileage: • Double check the appropriate mileage was driven. • Repeat the flushing and filling procedure a second time, make sure to properly flush all the diff fluid out • If no change after the second flush and additional mileage. replace the rear diff

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  Associated Documents

  • DownloadMC-11015616-0001.pdf↗
• March 11, 2025•Document ID: 11015574

  Service Bulletin/Repair Instructions
  EXTERIOR LIGHTING

  Mfr Comm. #:

  LI54.30-P-079004

  Date Added:

  March 12, 2025

  Manufacturer:

  MERCEDES-BENZ

  Summary

  Complaint The message "Device detected at diagnostics connection See Owner’s Manual" appears sporadically in the multifunction display of the instrument cluster while driving (see picture in attachment). Cause On vehicles with HERMES 3.0 currently, • A2389015700 • A2389015800 • A2389018400 • A2389018900 • A2389019000 • A2389019800 • A2579011200 • A2579012100 the above-mentioned message is sporadically displayed in the instrument cluster once the over-the-air updates to software release E843 (software part number A2389022409) have been performed. The issue is currently being analyzed; the cause is still unclear. Remedy Please manually commission the control unit N112/9 (HERMES) using XENTRY: XENTRY. "N112/9 - Control unit for telematics services (HERMES)" -> "Adaptations" -> "Control unit commissioning" -> "Commissioning of previously installed control unit" Invoice the required work using damage code 8251M/01 (damage location/damage type).

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  • DownloadMC-11015574-0001.pdf↗