2014 Mercedes-Benz Glk350 problems, complaints & recalls
Most-reported problem areas: Air Bags (58) · Service Brakes (4) · Fuel/Propulsion System (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
39 NHTSA complaints that reported an odometer reading.
Safety recalls (5)
Communication 2019-11-01 · campaign 19V787000 · 24,226 vehicles
Defect: Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2013-2017 vehicles due to a software fault that may cause the date and time for the emergency call system (eCall) to differ from the actual date and time, potentially relaying an inaccurate vehicle location. For a full list of the affected models visit: https://static.nhtsa.gov/odi/rcl/2019/RMISC-19V787-4620.pdf
Risk: An inaccurate vehicle location may delay emergency responders, increasing the risk of injury.
Fix: MBUSA has initiated an Over the Air (OTA) remote update. MBUSA will also notify owners, and dealers will check software for a successful OTA or update the communication module software as needed, free of charge. The recall began December 23, 2019. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2019120008.
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 2017-10-06 · campaign 17V627000 · 495,290 vehicles
Defect: Mercedes-Benz USA, LLC. (MBUSA) is recalling these vehicles: 2014-2018 CLA250, CLA250 4Matic, CLA45 AMG 4Matic, 2015-2018 GLA250, GLA250 4Matic, GLA45 AMG 4Matic, C300 4Matic, C63S AMG, 2012-2014 C250, C350, C300 4Matic, E550 4Matic, 2013-2014 C63 AMG, 2012-2015 C250 Coupe, C350 Coupe, C63 AMG Coupe, 2013-2015 C350 4Matic Coupe, GLK250 4Matic BlueTec, GLK350, GLK350 4Matic, 2016-2017 C350e, C43 AMG, 2015 C400 4Matic, 2016-2018 C63 AMG, GLC300, GLC300 4Matic, 2017-2018 C300 Coupe, C300 4Matic Cou
Risk: If the driver air bag inadvertently deploys, it can increase the risk of injury and a crash.
Fix: MBUSA will notify owners, and dealers will add sufficient grounding to the steering components, free of charge. The recall began in December 6, 2017. Owners may contact MBUSA customer service at 1-877-496-3691.
Steering 2017-04-12 · campaign 17V252000 · 168 vehicles
Defect: Mercedes-Benz USA LLC. (MBUSA) is recalling certain 2013-2014 C250, C300 4MATIC, GLK250 4MATIC BLUETEC and GLK350 vehicles, 2013 C250 Coupe, C350, C350 4MATIC Coupe, C350 Coupe and C63 AMG Coupe vehicles, and 2013-2015 GLK350 4MATIC vehicles. The steering coupling connecting bolt may have been insufficiently tightened, possibly resulting in a loss of steering.
Risk: A loss of steering can increase the risk of a crash.
Fix: MBUSA will notify owners, and dealers will inspect the steering coupling connecting bolt, tightening it as necessary, free of charge. The recall began May 2017. Owners may contact MBUSA customer service at 1-800-367-6372.
Electrical System:software 2017-03-14 · campaign 17V177000 · 51 vehicles
Defect: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2016 AMG GT-S, GLC300, CLA250 and GLE300d 4Matic vehicles, 2013 C250, E350 BlueTec and G63 AMG vehicles, 2008-2014 C300 vehicles, 2013-2014 C300 4Matic and ML350 4Matic vehicles, 2009 C350 vehicles, 2014 CLS550, E350 4Matic, E350 Coupe 4Matic, E350 Wagon 4Matic, GLK350 and SL550 vehicles, 2012 CLS550 4Matic vehicles, 2012-2016 E350 vehicles, 2016-2017 GL450 4Matic vehicles, 2012-2014 ML350 4Matic BlueTec vehicles, 2015 S550, S550 4Matic and C30
Risk: If the air bags do not deploy as intended in the event of a crash, there would be an increased risk of injury in the event of a crash.
Fix: MBUSA will notify owners, and dealers will update software in the affected control units, free of charge. The recall began April 21, 2017. Owners may contact MBUSA customer service at 1-800-367-6372.
Service bulletins (62)
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 62 bulletins. Search all of them free at nhtsa.gov.
What owners report
2026-08-06 · Suspension · 82,000 mi“the contact owns a 2014 mercedes-benz glk350. the contact stated that after reversing out of the garage, there was a large rust puddle near the rear passenger’s side of the vehicle. while the contact's wife was driving at an undisclosed speed, the vehicle made an abnormally loud clunking sound. the driver returned to the residence, and the contact …”
2026-07-15 · Tires:pressure Monitoring And Regulating Systems · 100,000 mi“the contact owns a 2014 mercedes-benz glk350. the contact stated that there was an abnormal fuel odor inside and outside vehicle. the check engine, tpms, and several other unknown warning lights were illuminated. the vehicle was not diagnosed or repaired by an independent mechanic or dealer. the manufacturer was not made aware of the failure. the f…”
2026-05-29 · Seats:front Assembly:seat Heater/Cooler · 120,000 mi“the contact owns a 2014 mercedes benz glk. the contact stated he heating element burned through the front driver side seat. the vehicle was taken to the dealer where it was diagnosed with an internal fault in the driver seat back heater; however the vehicle was not repaired. the manufacturer was notified of the issue. the approximate failure mi…”
2025-10-16 · Structure“see attached document for complaint.…”
2025-06-10 · Unknown Or Other“1. what component or system failed or malfunctioned, and is it available for inspection upon request? -the entire electrical system failed and the power steering, srs, and abs systems malfunctioned. yes, it’s available for inspection. 2. how was your safety or the safety of others put at risk? -last night around 9 pm cst we crank the car and sta…”
2025-01-25 · Seats“on 1/17/25, i was on my commute to my office when i noted a very strong and unpleasant odor. thinking it was from a truck in front of me, i passed the truck, cracked my passenger window and continued the short distance to my office. after work, when i returned to my car, i noted a hole burned through my driver's side leather seat. i didn't make …”
2025-01-02 · Seats“on january 01, 2025, i started my wife's car after adding coolant. i just want to warm it up since we did not use it in a couple of days. i activated the heated seat on the driver side where i was seated and was just looking at the dashboard. i felt something on back right side and thought that there was an insect bite. when i turned and look, i di…”
2024-10-31 · Parking Brake · 58,000 mi“the contact owns a 2014 mercedes-benz glk350. the contact stated that the parking brake failed to engage as needed. there were no warning lights illuminated. the vehicle was taken to the local dealer for an inspection, and it was determined that the parking brake release had failed to snap upwards. the contact stated that the pedal was releasing sl…”
2024-06-20 · Power Train“vehicle is a 4 wheel drive suv, having the mercedes-benz "4matic" drivetrain, has it's center differential planetary gearset (with integral clutch pack) in failure. mercedes is clearly aware that this is a drivetrain component that fails prematurely as there is a technical service bulletin (li28.00-p-051499) that provides methodology for diagnosin…”
2024-03-21 · Unknown Or Other“rear powered tailgate closes by itself. there is no warning. it closes very rapidly. this hit me in the head, but i am mostly concerned with others, such as elderly people and children. it could easily cause a concussion, or worse. i have contacted mbusa advocacy at 1-800-222-0100 three times. i was told all three times that i would be contac…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.