2024 Mercedes-Benz GLC 300 Technical Service Bulletins

286 technical service bulletins (TSBs) are on record for the 2024 Mercedes-Benz GLC 300. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 11012787Jan 3, 2025Electrical system. Complaint The vehicle's position on the map is displayed far away from its actual position, e.g. the vehicle is displayed as being in the middle of the ocean. Note: In the quick test, no relevant DTC is displayed for this. Cause The GNSS antenna is not correctly inserted at the GNSS connection (see picture in the attachment) in the head unit (A26/17). Remedy Insert the connector into the GNSS connection and ensure…
• 11012132Dec 20, 2024Transmission and drivetrain. Replace automatic transmission. For basic data of model 254 with M254, see AR27.10-P-0005MRW For basic data on transmission oil level test routine, see AR27.00-P-0270EWN.
• 11011846Dec 11, 2024Electrical system. Complaint Customer states CEL is on. Cause Quick test shows FC P0A7F00 The state of health limit of the hybrid/high-voltage battery module has been reached. No drivability concerns occurred and vehicle drives as normal. Remedy Do not replace any parts!! 254: SW has been released. Ensure all Add-ons are installed. Update A66 with the latest SW A 000 903 51 75 MY24 206: SW has been released. Ensure all Add-ons are…
• 11011557Dec 6, 2024Engine. Complaint Check engine lamp activated, coolant warning message, and engine fan running at full speed. Below fault codes stored in N127 PTCU related to LIN network components. U063200, U063287, U02A900, U02A987, U0698E4, U0698E5, U02C800, U02C887, U063B00, U063B87 Cause Under analysis. Remedy Disconnect 12V battery and leave for 20 minutes. Reconnect battery and clear fault codes. Perform 2 test drives, with at…
• 11010970Nov 27, 2024Electrical system. Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY21-25 C-Class, CLA, EQB, EQE, EQS, G-Class, GLA, GLB, GLC, GLE, GLS, GT, S-Class, and SL (206, 118, 243, 294, 296, 465, 247, 254, 167, 192, 223, and 232 platform) vehicles, the MBUX multimedia system does not correspond with the latest series production configuration. The MBUX multimedia system control unit will receive…
• 11010907Nov 25, 2024Electrical system. Complaint The flap of the reversing camera opens and closes by itself during forward travel. This happens several times during the trip. The customer notices the sound of opening and closing. No camera image is displayed in the head unit. The reversing camera or the 360° system functions normally when activated manually or by engaging drive range "R". This behavior occurs again during each driving cycle.
• 11010755Nov 20, 2024Electrical system. 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.
• 11010494Nov 13, 2024Exterior lighting, Visibility (wipers, defrost, mirrors). 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…
• 11010450Nov 12, 2024Electrical system. Complaint When using the offroad display in the MBUX, the "Transparent hood" function cannot be activated using the camera symbol. Cause MBUX FUP5 software: • E504.3 (A 297 904 97 00) • E504.4 (A 297 904 03 01) Remedy Update of head unit A26/17 to the new software: E504.5 (A 297 904 09 01)
• 11010435Nov 4, 2024Visibility (wipers, defrost, mirrors), Engine. Complaint -Check engine light(MIL) is ON. -Current and stored fault code in DCCU and PTCU : P2E9873 The position sensor of the exterior socket flap of the vehicle socket (direct current) has an electrical fault. The actuator does not open. -Starting the vehicle or Charging the vehicle is normal without any issues. Cause Software in the "N116/5 - Direct current charge connection unit (DCCU)" control unit. Remedy SW…
• 11010188Nov 1, 2024Electrical system. Mercedes-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.
• 11009122Oct 23, 2024Visibility (wipers, defrost, mirrors), Body and structure. 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…
• 11009138Oct 22, 2024Electrical system, Exterior lighting. 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 HLI control unit. Cause Older software release, HLI control units Remedy Update of HLI control units (E1n9 / E2n9)
• 11009036Oct 16, 2024Electrical system, Wheels. Complaint "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…
• 11008977Oct 16, 2024Electrical system, Engine. Complaint 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.
• 11008885Oct 4, 2024Electrical system. Mercedes-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…
• 11008883Oct 3, 2024Seats. Complaint 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…
• 11008879Oct 3, 2024Electrical system. Complaint 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…
• 11008877Oct 3, 2024Visibility (wipers, defrost, mirrors), Body and structure. Complaint Sliding sunroof panel of panoramic sliding sunroof reverses (temporarily, once, multiple times) during closing process without entrapment event: a) from tilt position b) from sliding position Cause a) Sensitive parameterization of the automatic reversing function of the panoramic roof b) Sluggish operation through tolerances of various component parts in the roof mechanism, in particular, at higher…
• 11008093Sep 28, 2024Electrical system. Complaint After clicking on the "Radio" selection function, the radio does not start and instead a permanent loading wheel is displayed. See attached picture for example. Cause Software version Remedy A26/17 - MBUX multimedia system (Head unit) unit must be replaced. When the head unit is in this condition, a software update will not remedy the situation.
• 11008091Sep 28, 2024Electrical 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)…
• 11008072Sep 25, 2024Electrical system. Complaint White plastic insert present on microphone assembly. See figure A for example. Cause The insert (breathable filter) is designed to be inside for dust protection and air flow control. Remedy Do not remove the breathable filter from the microphone assembly. This part is designed to be in the microphone and should remain in the vehicle. Note: If TIPS support is required for microphone symptoms please open a…
• 11008065Sep 25, 2024Electrical system. Cause 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…
• 11007974Sep 21, 2024Exterior lighting. 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…
• 11007961Sep 21, 2024Body and structure, Visibility (wipers, defrost, mirrors). Complaint Sliding sunroof panel of panoramic sliding sunroof reverses (temporarily, once, multiple times) during closing process without entrapment event: a) from tilt position b) from sliding position Cause a) Sensitive parameterization of the automatic reversing function of the panoramic roof b) Under analysis Remedy a) Leave the sliding sunroof panel of the panoramic roof in the rear sliding position (fully open…
• 11007972Sep 20, 2024Electrical system. Complaint After clicking on the "Radio" selection function, the radio does not start and instead a permanent loading wheel is displayed. See attached picture for example. Cause Software version Remedy A26/17 - MBUX multimedia system (Head unit) unit must be replaced. When the head unit is in this condition, a software update will not remedy the situation.
• 11007966Sep 18, 2024Suspension, Electrical system. Complaint Display dark (total or partial) of one or more ASCM (AMG) steering wheel button displays - see attachment. Note: There is no loss of vehicle functionality due to this complaint. Cause Software can cause a partial display on the ASCM. Remedy Please perform the following steps in the event of a total or partial display of the ASCM displays: 1. Perform a hard reset (disconnect power supply) of control unit…
• 11007858Sep 12, 2024Electrical system, Seats. 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.
• 11007753Sep 10, 2024Exterior lighting. 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…
• 11007673Sep 10, 2024Body and structure. 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…
• 11007731Sep 7, 2024Electrical system, Fuel system. 1. Connect XENTRY Diagnosis. 2. Update Fuel System Control Unit (FSCU10) software. To do this, select menu item "Quick test view . N118/3 – Control unit ‘Fuel pump’ (FSCU10) . Adaptations . Control unit update . Updating of control unit software". Then follow the user guidance in XENTRY Diagnosis. 3. Disconnect XENTRY Diagnosis.
• 11006710Aug 30, 2024Electrical system. Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY21-24 C-Class (206 platform), EQE (294 and 296 platform), EQS (295 and 297 platform), GLC (254 platform), AMG GT (192 platform), S-Class (223 platform), and AMG SL (232 platform) vehicles, the communication module software does not correspond with the latest series production configuration. The communication…
• 11006712Aug 23, 2024Electrical system. Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY23-24 GLC, C-Class (254, 206 platform) vehicles, the door control unit software does not correspond with the latest series production configuration. The door control unit software will receive an OTA update for the SCN coding. MBUSA will conduct an OTA service campaign.
• 11006635Aug 23, 2024Electrical system. An authorized Mercedes-Benz dealer will update the control unit software for the electronic ignition lock in your vehicle, free of charge. Your vehicle must be brought to a dealership to complete the update.
• 11006700Aug 14, 2024Electrical system. 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.
• 11006675Aug 8, 2024Other or unknown, Electrical system. Update Digital Operator's Manual. 1. 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 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…
• 11006699Aug 6, 2024Electrical system. Complaint Radio reception interference and the following DTCs are displayed in the A26/17 - MBUX multimedia system control unit as "active and stored": • B19B313 - Antenna 1 open load • B19B413 - Antenna 2 open load • B19B513 - Antenna 3 open load • B19B613 - Antenna 4 open load Cause Antenna amplifier Remedy Replace the antenna amplifier.
• 11006695Aug 5, 2024Electrical system. Complaint When using the offroad display in the MBUX, the "Transparent hood" function cannot be activated using the camera symbol. Cause MBUX FUP5 software: • E504.3 (A 297 904 97 00) • E504.4 (A 297 904 03 01) Remedy The remedy is currently being developed. Note: A remedy is not yet available. Replacing the hardware does not resolve the symptom. Do not replace the MBUX for this concern. The information will be…
• 11005294Jul 23, 2024Exterior lighting. 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…
• 11005336Jul 22, 2024Exterior lighting, Electrical system. Complaint Digital light pop-up messages (warnings, notes, spotlight and dyn. low beam) appear in the instrument cluster (picture in attachment), even though the same digital light settings are stored in all MBUX profiles Note: The pop-up messages are intended to indicate different settings when changing MBUX profiles Cause - ECU software error Remedy - Reset MBUX to manufacturer default settings.
• 11005342Jul 19, 2024Electrical system. The battery management control unit software does not meet current production specifications. The battery's state of health may not be calculated correctly, resulting in the false illumination of the check engine malfunction indicator lamp. An authorized Mercedes-Benz dealer will update the battery management control unit software, free of charge. Your vehicle must be brought to a dealer to complete the software…
• 11005238Jul 18, 2024Electrical system. Mercedes-Benz AG ("MBAG"), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2023 -2024 GLC (254 platform), C-Class (206 platform), CLE (236 platform), E-Class (214 platform) and S-Class (223 platform) vehicles, the 48-volt battery module (BMS) control unit software does not correspond to the current series production configuration.
• 11005334Jul 15, 2024Electrical system, Brakes, Forward collision avoidance. 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.
• 11005235Jul 6, 2024Other or unknown. 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…
• 11002619Jun 23, 2024Other or unknown. 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…
• 11003095Jun 22, 2024Visibility (wipers, defrost, mirrors). Complaint Sliding sunroof panel of panoramic sliding sunroof reverses (temporarily, once, multiple times) during closing process without entrapment event: a) from tilt position b) from sliding position Cause a) Sensitive parameterization of the automatic reversing function of the panoramic roof b) Under analysis Remedy a) Leave the sliding sunroof panel of the panoramic roof in the rear sliding position (fully open…
• 11002618Jun 22, 2024Other or unknown. 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…
• 11002617Jun 19, 2024Other or unknown. 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…
• 11003213Jun 18, 2024Electrical system. Complaint USB port data storage medium is not recognized, but charging function is still available. We are only aware of this complaint in a few isolated cases and it only occurs intermittently (not in every driving cycle). Cause Multimedia connection unit Remedy Replace the multimedia connection unit. Affected item numbers: A 214 820 81 00 A 223 820 14 05 Manufactured before 10/2023 modified parts have been…
• 11002616Jun 15, 2024Other or unknown. 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…

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