2012 Mercedes-Benz Glk350 problems, complaints & recalls
Most-reported problem areas: Air Bags (127) · Fuel/Propulsion System (10) · Suspension (4)
🧭 Reliability snapshot
Compared against other Mercedes-Benz Glk350 model years — complaint volume vs the model's median year, recalls and severity. How we score →
🛣️ Complaints by mileage
22 NHTSA complaints that reported an odometer reading.
Safety recalls (4)
Air Bags:frontal:passenger Side:inflator Module 2019-01-09 · campaign 19V010000 · 288,779 vehicles
Defect: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2014 C250, C300 4Matic, C350, C63 AMG, E350 4Matic Coupe, E350 Cabrio, E350 Coupe, SLS AMG Cabrio, SLS AMG Coupe, 2014-2015 C250 Coupe, C350 4Matic Coupe, C350 Coupe, C63 AMG Coupe, GLK 350, GLK250 BlueTec 4Matic, GLK350 RWD, 2015-2017 E400 4Matic Coupe, E400 Cabrio, E400 Coupe, 2014-2017 E550 Cabrio, and 2014-2016 E550 Coupe vehicles sold, or ever registered, in the states of AL, CA, FL, GA, HI, LA, MS, SC, TX, PR, AS, GU, the MP, and VI or "Z
Risk: An inflator explosion may result in sharp metal fragments striking the passenger or other occupants resulting in serious injury or death.
Fix: MBUSA will notify owners, and dealers will replace the passenger frontal air bag module, free of charge. The recall began March 29, 2019. Owners may contact MBUSA customer service at 1-800-367-6372.
Air Bags:frontal:passenger Side:inflator Module 2017-01-10 · campaign 17V017000 · 104,119 vehicles
Defect: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2012 C300 4Matic, C250, C250 Coupe, C350, C350 Coupe 4Matic, C350 Coupe, C63 AMG, C63 AMG Coupe, E350 Coupe 4Matic, E350 Cabrio, E350 Coupe, E550 Cabrio, E550 Coupe, GLK350 4Matic, GLK350, SLS AMG Cabrio, and SLS AMG Coupe vehicles originally sold, or ever registered, in Alabama, California, Florida, Georgia, Hawaii, Louisiana, Mississippi, South Carolina, Texas, Puerto Rico, American Samoa, Guam, the Northern Mariana Islands (Saipan), and the
Risk: An inflator rupture may result in metal fragments striking the vehicle occupants resulting in serious injury or death.
Fix: MBUSA will notify owners, and dealers will replace the front passenger air bag modules, free of charge. Owners were sent an interim notification in March 2017. Second notices started going out in October 2018 and continue to be mailed as parts become available. Owners may contact MBUSA customer service at 1-877-496-3691
Air Bags:frontal:driver Side:inflator Module 2016-02-11 · campaign 16V081000 · 711,159 vehicles
Defect: Mercedes-Benz USA, LLC. (MBUSA) is recalling certain model year 2009-2010 ML320 BlueTec 4Matic, GL320 BlueTec 4Matic and R320 CDI 4Matic, 2011 E350 Cabriolet and E550 Cabriolet, 2009-2011 ML350, ML350 4Matic, ML550 4Matic, ML63 AMG, and C63 AMG, 2010-2011 ML450 4Matic Hybrid, E350 Coupe, E350 4Matic, E550 Coupe, E550 4Matic, and E63 AMG, 2011-2012 GL350 BlueTec 4Matic and R350 BlueTec 4Matic, 2009-2012 GL450 4Matic, GL550 4Matic and R350 4Matic, 2007-2008 SLK280, SLK350, and SLK55 AMG, 2011-201
Risk: In the event of a crash necessitating deployment of the driver's frontal air bag, the inflator could rupture with metal fragments striking the driver or other occupants resulting in serious injury or death.
Fix: MBUSA will their notify owners, and Fiat Chrysler will notify the affected Chrysler owners. Dealers for the respective brands will replace the driver's frontal air bag module, free of charge. This recall began November 2016. Mercedes-Benz owners may contact MBUSA customer service at 1-800-367-6372 and Chrysler owners may contact Fiat Chrysler customer service at 1-800-853-1403.
Fuel System, Gasoline 2012-12-03 · campaign 12V557000 · 5,800 vehicles
Defect: Mercedes-Benz is recalling certain model year 2011-2012 S400, S550, S550 4Matic, S63 AMG, C300, C300 4Matic, E350, GLK350, GLK350 4Matic, CL550 4Matic, and CL63 AMG vehicles manufactured from April 18, 2011, through July 12, 2011. Due to an irregularity stemming from the molding process of the fuel filter flange, the fuel filter flange may crack when operated in high temperatures.
Risk: If the fuel filter flange cracks, it will leak fuel which may lead to a fire if an external ignition source is present.
Fix: Mercedes-Benz will notify owners, and dealers will replace the fuel filter, free of charge. The recall campaign is expected to begin in February 2013. Owners may contact Mercedes-Benz at 1-800-367-6372.
Service bulletins (63)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Service Brakes 2026-09-22 · LI42.10-P-078779 · Service Bulletin/Repair Instructions
complaint repeat workshop visit for vehicle vibration while braking from 60mph. note: although the symptom is similar to a tire or wheel vibration, it is usually readily noticeable that it is distinctly different if it happens at all times or only while braking. cause although the cause of the vibra
Structure:body 2026-09-14 · LI82.62-P-078631 · Service Bulletin/Repair Instructions
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 continues to occur even with the door trim removed, then continue the diagnosis working towards the speaker and if necessary,
Structure:body 2026-08-06 · LI82.62-P-078631 · Service Bulletin/Repair Instructions
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 continues to occur even with the door trim removed, then continue the diagnosis working towards the speaker and if necessary,
Power Train 2026-07-14 · LI35.30-P-058566 · Service Bulletin/Repair Instructions
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 travel. note: sound file in attachment cause if the complaint is eliminated by experimentally loosening the outboard collar n
Suspension 2026-05-13 · LI35.10-P-078931 · Service Bulletin/Repair Instructions
complaint potential corrosion on the rear axle carrier cause due to market-specific conditions such as moisture, ingress of dirt and/or environmental influences, corrosion can occur on the rear axle carrier remedy in the event of a complaint, the optimized repair method must be used when replacing t
Suspension 2026-05-12 · LI33.20-P-078406 · Service Bulletin/Repair Instructions
complaint creaking noise, in irregular sequence when driving slowly in combination with slight steering movements and/or creaking/crackling noises from the area of the wheel bearing on the front axle when cornering/ maneuvering. sound file attached for comparison. must match noise for proper diagnos
Showing the 6 most recent of 63 bulletins. Search all of them free at nhtsa.gov.
What owners report
2026-01-18 · Seat Belts · 💥 crash“on august 17, 2025 i rearended a vehicle in front of me who jammed on their brakes for no apparent reason. we were the only two vehicles in the area. upon impact, the following airbags deployed....steering wheel, driver knee airbag. i sustained injuries to my lower extremities from the exploded knee airbag which contained metal components that i…”
2025-11-26 · Suspension“i brought my car in to my local mechanic and was told my rear suspension was corroded. he said it would cost around five thousand dollars to repair. i researched online and found mercedes did not have a recall but has extended the warranty and will cover the repair to the rear suspension. the mercedes dealer called me and told me my brake lines …”
2025-10-28 · Seats“my passenger got 2 degree burns to his right buttocks and seat is melted ...he is a paralyzed patient i took him to the er and the burn center i have pictures and documentation....my guess the seat got to hot melted and burned him this what doctors concluded the is very scary for a seat to burn the skin off your butt …”
2025-06-05 · Unknown Or Other“the seats on both the passenger and driver size has split at the seams. they began to appear in 2012. the battery failed and the car would not start. periodically the car starts up slow. the car bucks in a hard motion when trying to accelerate. the car makes a grinding noise, with a dragging feeling, while driving. mechanics cannot figure out what…”
2025-02-18 · Steering“electronic steering wheel lock is broken and engine will not start because of lock.…”
2024-09-22 · Fuel/Propulsion System“i smelled gasoline in my car didn’t think of anything . till today when i pumped gas it smelled very strong got home parked my car i notice a leak i look closer under and it’s leaking gas .just got this car 2 months ago there was a safety recall about this issue back in 2013 and i was not sure if this issue was corrected before on my vehicle and …”
2024-09-05 · Service Brakes“rupture of left rear and left front brake lines 1/26/24,8/30/24. both times the failure was unannounced while driving the car and put my life in danger.…”
2024-08-10 · Suspension“my rear subframe is rotted out but won't be replaced under warranty because there are no rust holes in the metal. the rust is very extensive, and the car isn't safe to drive. the rear metal brake lines are also rotten and need to be replaced. i've owned many cars older than this one with more miles, and i've never had rusted-out brake lines. this …”
2024-01-30 · Fuel/Propulsion System“i smell gasoline every time i fill up the gas tank and don't smell it when not quite full. i haven't check yet but i think that the fuel pump flange has deteriorated. my co-worker has the same exact issue and he found out that it was the fuel pump flange. there was a safety recall about this issue back in 2013 and i was not sure if this issue wa…”
2023-11-27 · Fuel/Propulsion System“evap small leak p0456 car cabin smells strong gas odor check engine light is on …”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.