2019 Mercedes-Benz GLA 250 service bulletins & manufacturer communications
103 manufacturer communications are on file with NHTSA for the 2019 Mercedes-Benz GLA 250. TSBs are repair guidance for dealers — they are not recalls, and repairs are not automatically free.
Technical service bulletin 101Service campaign 1Warranty extension 1
- Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end). The noise is heard once in each instance when changing direction of trave…LI35.30-P-058566 · Technical service bulletin · Power Train · issued Jul 14, 2026
- Dear Mercedes-Benz USA Dealers, The part numbers listed in the chart below should no longer be installed, and any existing stock must be returned to your facing PDC. The deadline f…PSL-NCU Return Parts 6/19 · Technical service bulletin · Visibility/wiper · issued Jun 19, 2026
- Complaint After successful commissioning of the HERMES control unit (N112/9) with XENTRY Diagnosis DVD 03/2026, the message "SOS - service not activated" appears on the instrument …LI82.85-P-080507 · Technical service bulletin · Electrical System · issued May 26, 2026
- Complaint The customer requests deactivation of the N112/9 HERMES communication module Note: Deactivation of the HERMES control unit (N112/9) is not supported for gray-market vehic…LI82.85-P-080559 · Technical service bulletin · Electrical System · issued May 26, 2026
- Complaint Headlamp, 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 a…LI82.10-P-078301 · Technical service bulletin · Exterior Lighting · issued Apr 16, 2026
- Complaint Radio station cover art does not refresh when switching stations. The UI continues to show the old station’s artwork instead of updating to the new one. Cause When a new …LI82.60-P-080383 · Technical service bulletin · Electrical System · issued Apr 2, 2026
- Complaint Headlamp, 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 an…LI82.10-P-078301 · Technical service bulletin · Exterior Lighting · issued Mar 9, 2026
- Complaint Yellow information message in driver display (instrument cluster): "Switch on motor to charge the 12V battery" Cause The state of charge (SOC) of the 12V battery has drop…LI54.10-P-073164 · Technical service bulletin · Electrical System · issued Mar 4, 2026
- 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, …LI82.10-P-078307 · Technical service bulletin · Exterior Lighting · issued Feb 25, 2026
- Complaint Headlamp, 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 an…LI82.10-P-078301 · Technical service bulletin · Exterior Lighting · issued Feb 24, 2026
- 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, …LI82.10-P-078896 · Technical service bulletin · Exterior Lighting · issued Feb 24, 2026
- Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, the TIREFIT sealant bottle may not meet specifications. The possibili…NCU - 2025090001 · Service campaign · Unknown OR Other · issued Feb 13, 2026
- Complaint Oil residue in connector of transmission control unit in dual-clutch transmission models 724.0 and 724.1. Cause As part of the production process, the electrohydraulic co…LI27.19-P-080155 · Technical service bulletin · Power Train · issued Dec 19, 2025
- Complaint The flap of the reversing camera opens and closes by itself during forward travel several times during the trip. No ca mera image is displayed in the head unit. The rever…LI54.65-P-066284 · Technical service bulletin · Electrical System · issued Dec 18, 2025
- Complaint Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end). The clunk is heard once when changing from forward to reverse (…LI33.30-P-056665 · Technical service bulletin · Power Train · issued Nov 15, 2025
- Complaint At low speeds and light brake pressure, brakes will make a groaning or honking noise. Cause Frictional vibrations with very light brake pressure/modulations. Remedy This …LI42.10-P-079904 · Technical service bulletin · Service Brakes · issued Oct 20, 2025
- Complaint Customer complaints regarding automatic transmission 724.1 (8FDCT & 8FDCT hybrid) For faster, more effective and more targeted diagnosis, Intelligent Predictive Repair (I…LI27.00-P-077141 · Technical service bulletin · Power Train · issued Aug 5, 2025
- Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, the MBUX system software does not correspond with the latest series p…OTA - 25P5497847 · Technical service bulletin · Electrical System · issued Jul 11, 2025
- In our continuing efforts to ensure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz USA is extending the warranty c…CL - 05012025 · Technical service bulletin · Fuel/propulsion System · issued May 30, 2025
- 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 cha…LI54.71-P-078802 · Technical service bulletin · Electrical System · issued May 30, 2025
- Complaint After a software update of HERMES communication module N112/9 has been performed on a gray import vehicle, the message "SOS - Service not activated" is displayed in the i…LI82.85-P-079271 · Technical service bulletin · Electrical System · issued May 22, 2025
- Complaint Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end). The clunk is heard once when changing from forward to reverse (…LI33.30-P-056665 · Technical service bulletin · Power Train · issued May 21, 2025
- 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, …LI82.10-P-078896 · Technical service bulletin · Exterior Lighting · issued Apr 28, 2025
- Complaint Headlamp, 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 an…LI82.10-P-078301 · Technical service bulletin · Exterior Lighting · issued Apr 28, 2025
- 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…LI82.85-P-079087 · Technical service bulletin · Electrical System · issued Apr 21, 2025
- 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 …LI82.70-P-077433 · Technical service bulletin · Electrical System · issued Mar 5, 2025
- Complaint The flap of the reversing camera opens and closes by itself during forward travel several times during the trip. No camera image is displayed in the head unit. The revers…LI54.65-P-066284 · Technical service bulletin · Electrical System · issued Feb 24, 2025
- Complaint The flap of the reversing camera opens and closes by itself during forward travel several times during the trip. No camera image is displayed in the head unit. The revers…LI54.65-P-066284 · Technical service bulletin · Electrical System · issued Feb 24, 2025
- Complaint Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end). The clunk is heard once when changing from forward to reverse (…LI33.30-P-056665 · Technical service bulletin · Power Train · issued Jan 16, 2025
- Complaint The flap of the reversing camera opens and closes by itself during forward travel several times during the trip. No camera image is displayed in the head unit. The revers…LI54.65-P-066284 · Technical service bulletin · Electrical System · issued Jan 15, 2025
- 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 a…LI54.65-P-066284 · Technical service bulletin · Electrical System · issued Nov 25, 2024
- Complaint Transmission control unit Y3/8n4 (fully integrated transmission control unit (VGS)) not listed in quick test and/or no communication possible with VGS. Cause Transmission…LI27.19-P-072588 · Technical service bulletin · Power Train · issued Nov 20, 2024
- 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 …LI82.85-P-078473 · Technical service bulletin · Electrical System · issued Nov 20, 2024
- 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 …LI82.10-P-078069 · Technical service bulletin · Visibility/wiper · issued Nov 13, 2024
- 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.…LI82.35-P-078467 · Technical service bulletin · Structure · issued Oct 23, 2024
- Complaint Check engine light on. One of the below fault codes is current in the engine control module (N3/10). P04DB29, P04DB31, P04DB79 Cause Open circuit or high resistance to cr…LI01.20-P-078446 · Technical service bulletin · Engine · issued Oct 4, 2024
- 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 …LI82.85-P-078473 · Technical service bulletin · Electrical System · issued Oct 3, 2024
- 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 …LI82.70-P-077433 · Technical service bulletin · Electrical System · issued Sep 28, 2024
- 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, …LI82.10-P-078307 · Technical service bulletin · Exterior Lighting · issued Sep 21, 2024
- 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 …LI82.10-P-078301 · Technical service bulletin · Exterior Lighting · issued Sep 10, 2024
- Complaint Headlamps fogged or droplets forming. Cause Due to the housing cover with pressure compensation diaphragm, the headlamps are a "closed system". This means that the headla…LI82.10-P-078304 · Technical service bulletin · Exterior Lighting · issued Sep 9, 2024
- 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 …LI82.10-P-078069 · Technical service bulletin · Exterior Lighting · issued Jul 23, 2024
- Complaint Noise can be heard coming from the air conditioning system at higher blower motor speeds. Cause Leaves/foreign objects have entered through the water drain grille in the …LI83.10-P-075602 · Technical service bulletin · Visibility/wiper · issued Jun 6, 2024
- In our continuing efforts to assure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz USA (MBUSA) is extending the co…CL - 240401 · Technical service bulletin · Electrical System · issued Apr 30, 2024
- This is to notify you of the Service Campaign OTA update for the MBUX system software in 750,313 Model Year (MY) MY19-24 A-Class, CLA, CLS, E-Class, EQB, GLA, GLB, GLC, GLE, GLS, G…OTA - 20240402 · Technical service bulletin · Electrical System · issued Apr 26, 2024
- Mercedes-Benz AG (â  MBAGâ  ), the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY 2019-2023 A-Class, CLA, E-Class, G-Class, GLA, GLB, GLC, GLE, GLS…NCU-OTA Comm Mod · Technical service bulletin · Electrical System · issued Jan 29, 2024
- Noises in the steering column area when steering. Under analysis. Check which area of the steering column the noises occur in. Do the noises tend to occur at the bottom in the driv…LI46.10-P-077314 · Technical service bulletin · Steering · issued Jan 24, 2024
- The steering wheel generates grinding noises between the steering wheel and steering column switch module during steering maneuvers See example file in the attachments area: Lenkra…LI46.10-P-077313 · Technical service bulletin · Steering · issued Jan 24, 2024
- Mercedes-Benz AG (â  MBAGâ  ), the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY19-23 A-Class, C-Class, CLA, CLS, E-Class, EQB, G-Class, GLA, GLB,…OTA-Comm Mod SW · Technical service bulletin · Electrical System · issued Dec 7, 2023
- Crease formation on genuine leather seat covers in vehicles with low mileage â ¢ Objects left on the seats for extended periods of time (pressure marks). â ¢ Objects wedged b…LI91.18-P-077075 · Technical service bulletin · Seats · issued Dec 4, 2023
- Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY19-23 A-Class, CLA, CLS, E-Class, EQB, GLA, GLB, GLC, GLE, GLS, AMG GT (177, 118, 257…OTA-Head Unit SW · Technical service bulletin · Electrical System · issued Dec 1, 2023
- Fault code P06DA00 is found current or stored in engine control unit. Check engine light may be activated. Various causes Up to Model year 2018 Fault code P06DA00 can be disregarde…LI07.70-P-070763 · Technical service bulletin · Engine and Engine Cooling · issued Nov 17, 2023
- The "SOS nonfunctional" message appears sporadically in the instrument cluster of the vehicle. The fault code B129C00 is stored in the control unit log. The message occurs in parti…LI82.85-P-076800 · Technical service bulletin · Electrical System · issued Oct 10, 2023
- Mercedes-Benz AG (â MBAGâ ), the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY 2018-2023 C-Class, EQE, EQE SUV, EQS, EQS SUV, GLC, GLE and S-Class (206,…NCU-HU SW Update · Technical service bulletin · Electrical System · issued Aug 28, 2023
- The Mercedes me connect services cannot be activated. The remote status data does not update. Error in N112/9 - control unit for telematics services (HERMES). In the HERMES control…LI82.85-P-076799 · Technical service bulletin · Equipment · issued Aug 18, 2023
- Complaint Tailgate opens unintentionally. Cause Accidental or unnoticed activation of the button to open the tailgate on the vehicle key. E.g. when stored in trouser pocket, handba…LI72.20-P-075746 · Technical service bulletin · Electrical System · issued Jan 5, 2023
- Complaint Vibrations in steering at speeds lower than 30 mph. Possible when turning and also partly noticeable after changing to winter or all-season tires. Cause Controller stabil…LI46.35-P-075129 · Technical service bulletin · Steering · issued Aug 2, 2022
- Complaint Squeaking noise from area of input shaft of electric steering Cause Inadequate lubrication. Remedy Grease/lubricate sealing area of input shaft.LI46.35-P-074816 · Technical service bulletin · Steering · issued May 9, 2022
- "MY15+ M278 and M157 Equipped Vehicles with Fault Code ""P023400 â Boost Pressure is Too High"" "LI09.00-P-074093 · Technical service bulletin · Engine and Engine Cooling · issued Dec 8, 2021
- "Free browsing, Internet access via Wi-Fi hotspot and Internet radio nonfunctional"LI82.85-P-068846 · Technical service bulletin · Equipment · issued Jul 6, 2021
- New map data cannot be downloaded by the customer from the Mercedes me PortalNew map data cannot be downloaded by the customer from the Mercedes me PortalLI82.85-P-072730 · Technical service bulletin · Equipment · issued Mar 31, 2021
- X247 code 233 - Blind Spot Assist inoperative (fault message in IC) - Fault code C110178 due Positioning of rear left radar sensorLI54.71-P-072473 · Technical service bulletin · Lane Departure · issued Mar 29, 2021
- In XENTRY diagnosis, the message "MBUX multimedia system control unit is defective (hard drive, internal fault)" appears while attempting to communicate with the MBUX multimedia sy…LI82.85-P-071394 · Technical service bulletin · Electrical System · issued Feb 24, 2021
- The following complaints may be noted by the customer: - The MBUX multimedia system (A26/17) starts route guidance without user input and does not provide any audio notification. -…LI82.85-P-069381 · Technical service bulletin · Electrical System · issued Jan 4, 2021
- Air Conditioning System Occasionally Does Not Cool Correctly At Outside Temperatures Above 40°CLI83.30-P-070309 · Technical service bulletin · Visibility · issued Dec 30, 2020
- Communication errors with control unit AWD_M- FA2 - N15/17 - All-wheel drive (transfer case)LI35.31-P-072107 · Technical service bulletin · Power Train · issued Nov 12, 2020
- Fault code for short circuit to ground stored in AW- D_MFA2 - N15/17 - all-wheel drive (transfer case)LI35.31-P-072106 · Technical service bulletin · Electrical System · issued Nov 12, 2020
- This NCU replaces the prior NCUs issued on May 18, June 25, 2020 and October 1, 2020 and contains important workshop instructions on how the HVAC Service Warranty repair must be ca…EW - HVAC Service · Warranty extension · Visibility/wiper · issued Oct 29, 2020
- Humming/ vibrations/ noises from the area of the rear axle while maneuvering or when moving offLI35.31-P-072105 · Technical service bulletin · Power Train · issued Sep 12, 2020
- Replace exhaust gas cleaning information labelSC-2020080021 · Technical service bulletin · Fuel System, Gasoline · issued Sep 11, 2020
- Mercedes-Benz AG ("MBAG"), the manufacturer of Mercedes-Benz vehicles, has determined that certain MY 2019-2021 A-Class (177 platform), CLA-Class (118 platform), GLA-Class (247 pla…NCU-2020080023 · Technical service bulletin · Service Brakes, Hydraulic · issued Aug 28, 2020
- Engine diagnosis warning lamp activated - Fault code P012800LI20.10-P-060902 · Technical service bulletin · Lane Departure · issued Aug 3, 2020
- Incorrect time and/or instrument cluster message "SOS, service not activated" and/or Mercedes Me connect services nonfunctionalLI82.85-P-071453 · Technical service bulletin · Equipment · issued Jul 31, 2020
- Event memory in the instrument cluster mileage readings intermittently inaccurateLI54.30-P-070902 · Technical service bulletin · Electrical System · issued Feb 19, 2020
- Information Label on Tire SealantP-SC-2020020001 · Technical service bulletin · Equipment · issued Feb 7, 2020
- Squeaking Noise from Exhaust Gas FlapLI49.10-P-064655 · Technical service bulletin · Back Over Prevention · issued Nov 21, 2019
- Outside mirror folding out/in nonfunctionalLI72 40-P-069934 · Technical service bulletin · Visibility · issued Jun 27, 2019
- Head-up display (HUD) code 463 ? lines on the display, display flickersLI54 30-P-069742 · Technical service bulletin · Electrical System · issued Jun 18, 2019
- COMAND Online (code 531): Wrong date in system settings, incorrect time in instrument clusterLI82 85-P-069725 · Technical service bulletin · Electrical System · issued Apr 23, 2019
- G Facelift 2018: Knocking noises from rear area on rough roadsLI32 25-P-069660 · Technical service bulletin · Suspension · issued Apr 9, 2019
- Audio 20: Apple CarPlay displays pixelated imageLI82 85-P-069318 · Technical service bulletin · Equipment · issued Apr 2, 2019
- Audio 20: Apple CarPlay displays pixelated imageLI82-85-P-069318 · Technical service bulletin · Electrical System · issued Feb 5, 2019
- Noises from area of front axleGI33-30-P-061452 · Technical service bulletin · Power Train · issued Jan 31, 2019
- Audio 20: Apple CarPlay displays pixelated imageLI8285P069318v2 · Technical service bulletin · Equipment · issued Jan 30, 2019
- Audio 20: Apple CarPlay displays pixelated imageLI8285P069318 · Technical service bulletin · Equipment · issued Jan 23, 2019
- NTG5*1, Audio 20 - after ECO start/stop, USB music stick is reloaded and music playback begins at track 1.LI82 60-P-066763 · Technical service bulletin · Equipment · issued Aug 21, 2018
- MB App iHeart Radio is no longer available after a head unit updateLI82 85-P-068646 · Technical service bulletin · Equipment · issued Aug 21, 2018
- Plastic element on release lever of manual steering column adjuster loose.LI46 15-P-068465 · Technical service bulletin · Equipment · issued Jul 25, 2018
- 7G-DCT: Scratching noise when changing gear from D to R when transmission cold.LI27 50-P-064440 · Technical service bulletin · Power Train · issued Jul 16, 2018
- Cracking noise at limit stop of electric steeringLI46 35-P-067121 · Technical service bulletin · Steering · issued Oct 9, 2017
- Collision Prevention Assist Functions are RestrictedLI30 30-P-059421 · Technical service bulletin · Forward Collision Avoidance · issued Aug 29, 2017
- 7G-DCT: Scratching noise when changing gear from D to R with transmission cold.LI27 50-P-064440 · Technical service bulletin · Power Train · issued Aug 21, 2017
- Vehicle does not start, battery discharged.LI54 10-P-066342 · Technical service bulletin · Electrical System · issued Aug 8, 2017
- Noises Made by M133 Exhaust Gas FlapLI49 00-P-066785 · Technical service bulletin · Equipment · issued Jul 24, 2017
- COMAND Online: Some contacts on the telephone are not found via voice control.LI82 70-P-066767 · Technical service bulletin · Equipment · issued Jul 18, 2017
- Garmin MAP PILOT: Traffic information service and possibly voice control inoperative after navigation software update using Download Manager version 2.0.29 or 2.0.30LI82 85-P-066702 · Technical service bulletin · Equipment · issued Jul 7, 2017
- Instrument panel noises in area of instrument cluster faceplate in BR 117 / 156 / 176LI68 10-P-066437 · Technical service bulletin · Electrical System · issued Jun 12, 2017
- Vehicle does not start, battery discharged.LI54 10-P-066342 · Technical service bulletin · Electrical System · issued Jun 2, 2017
- Traffic information service and posibly the voice control, nonfunctional after navigation software update.LI8285P0647651 · Technical service bulletin · Equipment · issued Aug 25, 2016
- Clacking noises from the front axle area.GI3330P061452 · Technical service bulletin · Power Train · issued Aug 15, 2016
- Gasket may settle causing a slight oil leak.LI1830P0597123 · Technical service bulletin · Engine and Engine Cooling · issued Aug 5, 2016
- Diverse fault messages in instrument cluster. Distronic, ESP, tire pressure monitoring, engine indicator lamp Diverse CAN communication errors stored in quick test Possible malfunc…LI54.18-P-059361 · Technical service bulletin · Electrical System · issued Jul 8, 2014
- Surface damage on steering wheel trimLI46.10-P-057961 · Technical service bulletin · Steering · issued Feb 18, 2014