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Service bulletins for the 2024 Mercedes-Benz AMG GT

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

238 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
OTA - 202509052025-09-05. Over-the-air update. ELECTRICAL SYSTEM. Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, there is a new software release for the MBUX Infotainment system. An OTA update will enhance both functionality and entertainment features. The update introduces Dolby Atmos support for in-car apps, improvements to the MBUX calendar app, and the launch of MBUX SOUND DRIVE. To deliver a better music streaming experience, new apps will be installed and existing integrations with online streaming providers will be removed. Each provider will now require a separate app, which will be installed during the 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.
NCU - 20250800032025-08-28. Service campaign. ELECTRICAL SYSTEM. Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, the Battery Management System control unit software does not correspond to current production specifications. As a result, the battery Malfunction Indicator Lamp (MIL) may illuminate when no system fault occurs. MBUSA will conduct a service campaign. An authorized Mercedes-Benz dealer will update the Battery Management System control unit software.
OTA - 202508292025-08-28. Over-the-air update. ELECTRICAL SYSTEM. Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, the charging function does not correspond to the current series production configuration. The charging system software will be updated to stabilize the charging function of the vehicle. 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.
LI54.18-P-0795352025-08-13. Service bulletin. ELECTRICAL SYSTEM. Complaint Vehicle does not start, can also not be driven electrically. The following fault messages are displayed in the instrument cluster: Red fault message "HV battery" with the addition "Towing not possible" Vehicle start not possible in yellow Cause Plug X292x1 / X296x1 not engaged correctly or plug defective. Remedy Requirement: Before carrying out test work, it must be ensured that the person performing the work has successfully completed the required qualification for work on the high-voltage system. Test: Check plug X292x1 / X296x1 as follows: Please first take a photo of the plug X292x1 / X296x1 before carrying out further checks. If a gap can be seen between the outer housing and plug housing of the plug X292x1 / X296x1, the plug X292x1 / X296x1 is not engaged correctly, see "Plug assembly" Annex. Please open a TIPS case and attach a photo of plug X292x1 / X296x1. Disconnect the plug X292x1 / X296x1 and try to shift the outer housing with the interlock plug above forward in a disconnected state. If this is not possible, the plug X292x1 / X296x1 is OK, see video "Check plug X292x1_X296x1_OK state" in Annex. If this check confirms that the outer housing can be shifted forward despite the disconnected plug X292x1 / X296x1, the plug X292x1 / X296x1 including wiring harness is not OK (please attach video) and must be replaced. Please attach a photo of the label to the TIPS case, see Annex "Position of label" Assembly: If the outer housing cannot be shifted forward after the check above, then the plug X292x1 / X296x1 can be installed properly as per the "Plug assembly" instructions, see Annex. Important note: If the plug was installed correctly, no gap between the outer housing and plug housing must be visible, see picture 5 from "Plug assembly" instructions Annex. There is no additional engaging for the outer housing. In addition, the plug X292x1 / X296x1 must be fixed in place with a cable tie, see "Gap / cable tie note" picture in the Annex.
LI47.70-P-0785632025-08-01. Service bulletin. ELECTRICAL SYSTEM. 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, 254 (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 Model Series 214: • Ensure N116/5 DCDC has latest software. • Perform SCN coding of the PTCU controller. • If MIL is still active, please open TIPS case and send to Body/Chassis/Entertainment inbox. 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.
LI46.10-P-0780122025-08-01. Service bulletin. LANE DEPARTURE: ASSIST; ELECTRICAL SYSTEM; FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL. Complaint Hand detection system not operating correctly / vehicles with code 266 Fault message in instrument cluster: "Active Emergency Stop Assist not available" "Active Lane Keeping Assist not available" Cause Possible causes: the hand detection mat, the hand detection control unit, the contacts and the steering wheel harness. Remedy In the event of a customer complaint and fault code in IDC control unit: U186B29 in IDC223 or fault code U0429E0, U042941, U042929, U042902, U0429E1 in IDC213 or fault code in HOSWD control unit: B1E7614 Test: Please perform the new SCN coding for HOSWD control unit (N179/1) (available since May 2025). Please flash the IDC (N62/4) software A223 902 75 37 (only applies to HOSWD223). Erase fault memory Remedy: Switch on ignition without touching the steering wheel. If after 10 seconds without touching the steering wheel, one of the two fault messages appears in the IC: Please check contacts and feed lines in the steering wheel by means of visual inspection for damage, crimped connections, loose connections, etc. (example in picture 2 and 3). If there is visible damage -> replace steering wheel electronics or feed lines. If there is no visible damage -> Proceed to replace the steering wheel. If no yellow message appears in the instrument cluster within 10 seconds: Please grab the steering wheel all the way round, including the 6 o'clock chrome molding, with both hands (see picture 1). If the fault is triggered by grabbing the steering wheel rim or pressing on the 6 o'clock clasp, check contacts and feed lines in the steering wheel by means of visual inspection for damage, crimped connections, loose connections, etc. (example in picture 2 and 3). Check ground connections (screw connections and cable to steering wheel rim); if necessary tighten screws/bolts and check for corrosion (Picture 4). If there is visible damage -> replace steering wheel electronics or feed lines. If no fault is visible -> Proceed to replace the steering wheel. In the event of a customer complaint and further fault code in HOSWD: B1E7713: Check ground connections (screw connections and cable to steering wheel rim); if necessary tighten screws/bolts and check for corrosion (Picture 4). B1F1F04: Check hand detection system control unit; if necessary swap with donor vehicle (ensure that the HW part numbers are identical).
OTA - 202507252025-07-29. Over-the-air update. LANE DEPARTURE: ASSIST; ELECTRICAL SYSTEM; FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL; LANE DEPARTURE: WARNING. Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has updated driver assistance system software available for certain subject vehicles. The updated software improves system stability and enhances the robustness of the driver assistance system. 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.
OTA - 202506272025-06-27. Over-the-air update. LANE DEPARTURE: ASSIST; LANE DEPARTURE: WARNING; FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL; ELECTRICAL SYSTEM. Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has updated driver assistance system SCN coding available for certain subject vehicles. The updated SCN coding improves system stability and enhances the availability of driver assistance features. MBUSA will conduct an OTA service campaign. Remote SCN coding updates are automatically downloaded and installed in the customer’s vehicle free of charge and do not require a dealer visit.
OTA - 050220252025-06-03. Over-the-air update. ELECTRICAL SYSTEM. Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, the ignition lock (EZS) control unit does not correspond with the latest series production configuration. The EZS control unit will receive an OTA software update which will improve the performance of hands-free access on the affected vehicles. 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.
LI54.71-P-0788022025-05-30. Service bulletin. ELECTRICAL SYSTEM. Complaint MBUX head unit display with red text box "System Inoperative". ONLY for vehicles with SA code (549+21U) or (549+U19). Cause Head unit software variant. Remedy For all chassis use Xentry to update head unit (A26/17). Target boot software number should be either: • 247 904 6600 (E905.4) OR • 247 904 7500 (E906.1) If vehicle fits all criteria and either target software is not available via Xentry, please open an XSS ticket. Damage code 5424x-01 may be used with a repair start date after June 2nd, 2025.
LI54.21-P-0793692025-05-30. Service bulletin. ENGINE; ELECTRICAL SYSTEM. Complaint The customer complains that there is a humming/droning/throbbing/ear pressure in the interior at low engine speeds (up to 2400 rpm). Cause In the current software state, the EOC system (Active Noise Cancellation), which reduces the humming in the interior, fails permanently, without a DTC (Diagnostic Trouble Code) being stored. Remedy Remedy software available in Xentry: • Vehicles with code 810: SW update ASX (N156/1) and SND (N40/3) control unit • Vehicles with code 811: SW update ASX (N156/1) and SND (N40/3) control unit After the ASX & SND software update, initial start up of the control units must be performed.
LI47.70-P-0781272025-05-22. Service bulletin. ELECTRICAL SYSTEM. Complaint Vehicle not AC charging. Check engine light on. PTCU/N127 with fault code P0D9100 "The lock for the charging cable has an open circuit". Cause Possible Software topic. Remedy Please open TIPS case. TIPS case: Needed customer feedback: When did the complaint/IC message occur? While driving and /or charging / or parking? If the complaint occurred while charging, how long after did the complaint/IC message occur? Which charging station was used, which provider (picture if possible)? Attach HV CUL and QT to the case Test: Verify AC charging Erase fault codes and verify if fault code P0D9100 “The lock for the charging cable has an open circuit” returns Check AV of AC charger Check the connection of the charging cable and charging socket and lock actuator – 1) yes or no? – 2) Did the failure disappear or not? Check the connection of the OBC and HV-Harness to the charging socket (unplug and plug again) – 1) yes or no 2) Did the failure disappear or not? Check the LV-connection to the locking actuator on the charging socket (unplug and plug again) – 1) yes or no? 2) any changes? Check the emergency release activation on the locking actuator – was it triggered/pulled out or not? Emergency release should be rotated back in not activated position Check for SW updates for AC charger and PTCU. SW remedy expected to be available 06/2025
OTA-5497821/222025-05-09. Over-the-air update. ELECTRICAL SYSTEM. Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, the coding for the electronic ignition lock control unit does not correspond to the latest series production configuration. The electronic ignition lock control unit will be updated to change the logic for locking and unlocking the vehicle via the door handles. To unlock the vehicle, the large outer contact surface of the door handle must be touched. To lock the vehicle, the small, recessed contact surface of the door handle must be touched. 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.
LI54.10-P-0714992025-05-09. Service bulletin. ELECTRICAL SYSTEM. Complaint The result from the XENTRY battery test does not match the current state of the battery. Cause The XENTRY battery tester uses the stored on-board electrical system data in the SAM module to access the health of the 12 volt battery. The XENTRY battery test may not take into account a single discharge event because the SAM or EZS cannot record the data if the battery is discharged. Note: A discharged battery does not necessarily need to be replaced. A discharged battery may be recovered with no permanent damage. Remedy 1) If the battery is discharged, charge the battery. Review WS54.00-P-0037B for minimum charger specifications. • Note the amperage difference between trickle (maintainer) chargers of at least 16A and quick chargers of at least 30A. • Review AP54.10-P-5449U. Note when battery is sufficiently charged the charger current is less 5A. 2) While charging the battery, analyze the vehicle data to determine root cause of discharge using the following data points: • NOTE: For guidance on use of the on-board electrical data please review the AKUBIS video titled "New onboard electrical system diagnosis shown on BR 166". The video can be accessed through WIS by following the path WSM--> content by model series --> passenger cars --> ML-Class --> Model 166 --> group 54 --> New onboard electrical system diagnosis. • Refer to the March 2023 PCTT for the video walkthrough of analysis as well as the attachment of the slides to this Li. For Star 2 vehicles: -Review FSAM on-board electrical data conspicuous records • NOTE: This data can be found via FSAM N10/6 -> Actual Values -> On-board electrical system -> On-board electrical system data For Star 3 vehicles: -Review N73/3 EZS on-board electrical data conspicuous records • NOTE: This data can be found via EZS N73/3 -> Actual Values -> On-board electrical system -> On-board electrical system data 3) Determine if root cause is due to: • vehicle technical issue? • customer behavior? NOTE: Recommend using battery analysis sheet found in XiW -> Local Contents -> Diagnostic info -> Battery Discharge Worksheet 4) If battery still does not accept charge, create a TIPS case. -Must include with the case: • Amperage setting of charger and time battery was on charger • XENTRY Battery Tester results • Voltage of battery taken with multimeter: Do not connect charger while taking measurements • N10/6 FSAM and N73/3 EZS CUL • Workshop analysis of conspicuous data • Root cause analysis for battery discharge based on the above documents (technical, customer, etc.) • NOTE: For expedited results when creating a case write customer complaint as "XENTRY Battery Tester implausible".
LI82.85-P-0783032025-05-06. Service bulletin. ELECTRICAL SYSTEM. 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: Perform SCN coding in control unit OMSH223 (N168). For vehicles as of modification year 23/2: Considered to be a series production configuration. A change will not be possible in future. 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.
LI46.10-P-0780122025-05-02. Service bulletin. STEERING; ELECTRICAL SYSTEM. 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
LI54.71-P-0791042025-04-15. Service bulletin. ELECTRICAL SYSTEM. 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.
LI54.71-P-0788022025-04-01. Service bulletin. ELECTRICAL SYSTEM. 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.
OTA - 54977482025-03-17. Over-the-air update. ELECTRICAL SYSTEM. Issue Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, the communication software does not correspond with the latest series production configuration. The communication module will receive an OTA update which includes quality-enhancing optimizations and improves the system stability and accessibility of Mercedes me services. The update is downloaded and installed in the background. During installation, the system can be used without restrictions. The new software will become active after the vehicle has been restarted. Remedy 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.
OTA - 54977462025-03-17. Over-the-air update. ELECTRICAL SYSTEM. Issue Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, the communication software does not correspond with the latest series production configuration. The communication module will receive an OTA update which includes quality-enhancing optimizations and improves the system stability and accessibility of Mercedes me services. The update is downloaded and installed in the background. During installation, the system can be used without restrictions. The new software will become active after the vehicle has been restarted. Remedy 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.
LI82.70-P-0774332025-03-17. Service bulletin. ELECTRICAL SYSTEM. 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.
OTA- 24P54977472025-02-28. Over-the-air update. ELECTRICAL SYSTEM. Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY19-25 A-Class, C-Class, CLA, CLS, E-Class, G-Class, GLA, GLB, GLC, GT, and S-Class (118, 177, 205, 213, 217, 222, 238, 247, 253, 257, 290, 463 platform) vehicles, the communication software does not correspond with the latest series production configuration. The communication module will receive an OTA update which includes quality-enhancing optimizations and improves the system stability and accessibility of Mercedes me services. The update is downloaded and installed in the background. During installation, the system can be used without restrictions. The new software will become active after the vehicle has been restarted. 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. Parts Parts are not required
OTA - 24P54977452025-02-28. Over-the-air update. ELECTRICAL SYSTEM. Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY20-25 A-Class, C-Class, CLA, CLS, E-Class, EQB, GLB, GLE, GLS, AMG GT 4-Door, and S-Class (118, 167, 177, 205, 213, 222, 238, 243, 247, 257, 290 platform) vehicles, the communication software does not correspond with the latest series production configuration. The communication module will receive an OTA update which includes quality-enhancing optimizations and improves the system stability and accessibility of Mercedes me services. The update is downloaded and installed in the background. During installation, the system can be used without restrictions. The new software will become active after the vehicle has been restarted. 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.
LI54.71-P-0788022025-02-28. Service bulletin. ELECTRICAL SYSTEM. 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).
LI54.10-P-0789152025-02-21. Service bulletin. ELECTRICAL SYSTEM. Complaint 12V battery message on the Instrument Cluster with possible no start. Cause Low voltage of the 12V battery Remedy 1. Perform battery test via XENTRY Diagnosis (check the "12V battery" component). 2. If the test result is "The component "Battery" is not in OK. Replace component "battery"", please create a TIPS case labeled "192 12V Battery Replacement" 3. Include the N73/3 EZS CUL and Initial Quick Test 4. Please do not carry out any further work on the vehicle (software updates, parts replacement, etc.). 5. For analysis purposes, do not replace the 12V battery for the time being. 6.The further procedure for processing the vehicle will be communicated via TIPS.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.