2012 Mercedes-Benz GL450 service bulletins & manufacturer communications
50 manufacturer communications are on file with NHTSA for the 2012 Mercedes-Benz GL450. TSBs are repair guidance for dealers — they are not recalls, and repairs are not automatically free.
Technical service bulletin 49Service campaign 1
- Complaint Clanking noise from the area of the speakers in the doors. Cause Under analysis. Remedy To narrow down the cause, first of all remove the door trim. • If the noise contin…LI82.62-P-078631 · Technical service bulletin · Structure · issued Aug 6, 2026
- 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
- 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 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 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
- 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 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 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 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 directio…LI35.30-P-058566 · Technical service bulletin · Power Train · issued Jan 15, 2025
- 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 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 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
- Mercedes-Benz AG ("MBAG"), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) C-Class, E-Class, S-Class, G-Class, CL, CLS, ML, GL, GLE, GL…NCU - 2022080005 · Service campaign · Electrical System · issued Aug 10, 2024
- In our continuing efforts to ensure the proper performance and quality of your vehicle, we are writing to inform you that on certain Model Year 2011-2018 C-Class, E-Class, S-Class,…CL - 2022080005 · Technical service bulletin · Engine · issued Aug 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
- Mercedes-Benz AG ("MBAG"), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (â  MYâ  ) 2009-2012 GL-Class, ML-Class, R-Class, and S-Class…NCU-2023060005 · Technical service bulletin · Electrical System · issued Dec 11, 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
- 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 …CL-Exhaust Valve Assembly · Technical service bulletin · Engine · issued Sep 6, 2023
- Mercedes-Benz USA, LLC (?MBUSA?) has entered into an agreement with the United States Department of Justice (DOJ), the Environmental Protection Agency (EPA), the California Air Res…NCU-2020110011 · Technical service bulletin · Engine and Engine Cooling · issued Nov 11, 2020
- To enhance the satisfaction of our customers, avoid further costs of litigation and return focus to its core businesses, Mercedes-Benz USA, LLC (MBUSA) has entered into a settlemen…NCU - HVAC Warra · Technical service bulletin · Equipment · issued May 21, 2020
- Retrofitted front door exit lamps with logo projection flickerLI82.20-P-070189 · Technical service bulletin · Structure · issued Jan 14, 2020
- No cooling output, fault code 9006 stored in air conditioning control unit.LI8330P0496447 · Technical service bulletin · Equipment · issued Nov 15, 2016
- Ticking or pulsing noise from high-pressure pump and/or fuel injectors.LI0702P0547173 · Technical service bulletin · Engine and Engine Cooling · issued Nov 14, 2016
- Headlamp lights up sporadicallyLI82.10-P-064172 · Technical service bulletin · Exterior Lighting · issued May 31, 2016
- Additional information around the recent recall announcement affecting approximately 705,983 Mercedes-Benz passenger vehicles involving Takata driver-side airbags containing PSDl-5…TakataRecall · Technical service bulletin · Air Bags · issued Feb 26, 2016
- Recall Campaign announcement for Takata driver airbags.RecallUpdate · Technical service bulletin · Air Bags · issued Feb 11, 2016
- 2nd seat row Power Easy Entry function impairment of backrest foldingLI91.22-P-059988 · Technical service bulletin · Seats · issued Oct 14, 2014
- Electric motor for the folding rear backrest of the 3rd seat row is inoperative or makes noises during adjustmentLI91.22-P-059388 · Technical service bulletin · Seats · issued Jul 12, 2014
- The release loop of the Easy Entry seat in the 2nd seat row is awkward to operate as it is difficult to accessLI91.12-P-059378 · Technical service bulletin · Seats · issued Jul 9, 2014
- Delayed 2-3 UpshiftLI27.20-P-059067 · Technical service bulletin · Power Train · issued May 16, 2014
- Minor leaks at the oil duct of the left or right cylinder head of engines 157, 276 and 278. 1. Left cylinder head: Oil passage plug hole on left beside mechanical vacuum pump. 2. R…LI01.30-P-058630 · Technical service bulletin · Fuel System, Gasoline · issued Mar 21, 2014
- ESP warning message in instrument cluster. One of the fault codes C219700 or 630900 is logged in the ESP control unit (N30/4).LI30.20-P-058689 · Technical service bulletin · Electrical System · issued Mar 13, 2014
- Blind Spot Assist inoperative.LI54.71-P-056477 · Technical service bulletin · Lane Departure · issued Feb 25, 2014
- Collision Prevention Assist (CPA) may warn for no obvious reason (optical and/or acoustic warning message).LI30.30-P-055823 · Technical service bulletin · Lane Departure · issued Feb 11, 2014
- This Customer 1 Action has been initiated because certain mbrace subscribers were recently contacted by mbrace informing them that they need to have an i-button call performed to e…C1A140101 · Technical service bulletin · Equipment · issued Feb 11, 2014
- Message in instrument cluster "DISTRONIC PLUSCurrently Unavailable - See Owner's Manual"GI88.40-P-057430 · Technical service bulletin · Equipment · issued Feb 3, 2014
- This Service Campaign has been initiated because Daimler AG (DAG), the manufacturer of Mercedes-Benz vehicles, has determined that the mbrace software does not correspond to curren…S-SC- 2013090008 · Technical service bulletin · Electrical System · issued Feb 1, 2014
- Mobile phone cotacts are not transferred completely.LI8270P055572 · Technical service bulletin · Electrical System · issued Aug 5, 2013
- FC 2783 (Friction power of torque converter lockup clutch is too high) or FC 0741 (Actuation of torque converter lockup clutch not possible) stored in transmission control unit. On…LI27.20-P-055758 · Technical service bulletin · Power Train · issued Jul 30, 2013
- Customer experiences low battery conditions, resulting in jump starts, and eventually requiring battery replacement.LI82.95-P-056655 · Technical service bulletin · Electrical System · issued Jul 12, 2013
- The COMAND unit does not start or the COMAND display remains dark. The COMAND unit cannot be operated. Note: The problem disappears after a lengthy idle period (>6h) or after inter…LI82.85-P-055695 · Technical service bulletin · Electrical System · issued Jul 8, 2013
- Summary to be provided on a future date.2013040001 · Technical service bulletin · Engine · issued Apr 19, 2013
- Summary to be provided on a future date.2013020001 · Technical service bulletin · Equipment · issued Mar 1, 2013
- Summary to be provided on a future date.2012100005 · Technical service bulletin · Equipment · issued Nov 16, 2012