2015 Mercedes-Benz Gl450 problems, complaints & recalls
Most-reported problem areas: Engine (5) · Suspension (3) · Seats (2)
🧭 Reliability snapshot
Compared against other Mercedes-Benz Gl450 model years — complaint volume vs the model's median year, recalls and severity. How we score →
Safety recalls (3)
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.
Suspension:front 2018-04-27 · campaign 18V272000 · 9,725 vehicles
Defect: Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2012-2014 ML350 Bluetec 4Matic and ML550 4Matic, 2012-2015 ML63 AMG 4Matic and ML350 4Matic, 2013-2016 GL350 Bluetec 4Matic, GL550 4Matic and GL63 AMG 4Matic, 2017 GLS350d 4Matic, GLS450 4Matic, GLS550 4Matic and GLS63 AMG 4Matic, 2015 ML400 4Matic, 2016 GLE400 4Matic, GLE350 4Matic, GLE63 AMG 4Matic, GLE63S AMG 4Matic, GLE450 4Matic Coupe and GLE63S AMG 4Matic Coupe, 2015-2016 GL450 4Matic and 2013-2014 GL450 4Matic vehicles equipped with the
Risk: The leaking oil in the presence of an ignition source can increase the risk of a fire.
Fix: MBUSA will notify owners, and dealers will correct the oil level as necessary and replace the reservoir sealing cap to prevent oil foam from leaking out, free of charge. The recall began August 30, 2018. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2018070015.
Power Train:axle Assembly:axle Shaft 2016-12-14 · campaign 16V900000 · 48 vehicles
Defect: Mercedes-Benz USA, LLC. (MBUSA) is recalling certain model year 2015 GL350 4Matic Blutec, GL450 4Matic, GL550 4Matic, ML250 Blutec, ML350, ML350 4Matic, ML400 4Matic and 2015-2016 GL63 AMG 4Matic vehicles manufactured September 29, 2014 through March 27, 2015. The affected vehicles have axle bolts on the front and/or rear drive axle carriers that may not have been assembled correctly. As a result, the remaining bolts may fracture.
Risk: If any of the remaining front or rear axle bolts fracture, the vehicle may be unstable, reducing the handling capability and increasing the risk of a crash.
Fix: MBUSA will notify owners, and dealers will replace the axle carrier bolts, free of charge. The recall is began February 2017. Owners may contact MBUSA customer service at 1-800-367-6372.
Service bulletins (85)
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,
Steering 2026-08-28 · LI46.35-P-067339 · Service Bulletin/Repair Instructions
complaint during part of the steering movement, it feels heavier or more difficult to steer in the same spot every time. or rattling, humming, dry sliding/gravel noise from the electric steering system when steering (see attachment). complaint does not impact the ability to safely steer or control
Fuel/Propulsion System 2026-08-15 · CL - Tank Leak Detection · Warranty Program/Extension
dear mercedes-benz owner: 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 coverage for the diagnostic module for tank leakage detection ("dmtl") on your vehicle from the
Electrical System 2026-08-06 · LI82.85-P-079087 · Service Bulletin/Repair Instructions
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 radio 4.send2car 5.speech detection service 6.navigation 7.iheartradio 8.traffic cams cause mb apps is sundowned for al
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,
Showing the 6 most recent of 85 bulletins. Search all of them free at nhtsa.gov.
What owners report
2026-03-31 · Unknown Or Other · 🔥 fire“my 2015 mercedes-benz gle 450 experienced an unexpected vehicle fire on feb 13th 2026. the vehicle was just parked when i noticed smoke from the engine. the vehicle caught fire within a short period of time, and 911 was called. there was no known external cause for the fire. the incident appeared to originate from the engine compartment. this crea…”
2025-08-08 · Engine“to whom it may concern: i am writing to formally request the national highway traffic safety administration’s assistance regarding a critical safety defect in my 2015 mercedes‑benz gl 450 (m278 engine). i purchased this vehicle in october 2024 with 76,000 miles, and it now has about 87,000 miles. alarmingly, i recently received a quote for $13,000 …”
2024-11-22 · Engine · 119,000 mi“the contact owns 2015 mercedes-benz gl450. the contact stated that the check engine warning light was illuminated. the vehicle was taken to the dealer, where dtc code: p060a00 was retrieved. the dealer determined that the solenoid valve had failed and needed to be replaced. the contact related the failure to tsb number: 37 13 17 2029027/8. the vehi…”
2023-01-09 · Engine · 110,000 mi · 🔥 fire“the contact owned a 2015 mercedes-benz gl450. the contact stated that the vehicle was in the dealer for 12 days for an oil change. the contact's son drove the vehicle 2 days later, at an undisclosed speed when the vehicle started smoking from the engine. the contact's son pulled over when the vehicle caught fire completely. the fire marshals came o…”
2022-03-17 · Structure:body“the rubber sealing around the lift gate failed on the vehicle and water seeped inside the vehicle and entire bottom of the vehicle underneath the floor board thereby damaging the electronic components, engine wire harness and headliner thereby rendering the vehicle was beyond repair. this issue led to mold to grow on the roof liner inside and on th…”
2022-02-08 · Steering“steering wheel will not go up and down. it will go in and out. this needs a recall! this is a huge problem with many mercedes. …”
2022-01-21 · Suspension“the airmatic system in this vehicle fails continuously, causing the vehicle to bump up and down while driving. unsafe to drive …”
2021-12-06 · Unknown Or Other“the fixed portion of the panorama sunroof exploded while driving on the highway at 65mph in light traffic and temperatures were in the mid 40's. glass shards fell on the passengers, including three young children under the age of 5. repairs are being arranged by customer pay and insurance. manufacture denies fault.…”
2021-02-01 · Engine · 86,230 mi“plastic coolant union on radiator hose going from the coolant expansion tank to the electric auxiliary coolant pump catastrophically failed when i was changing the lh driver side front headlight bulb. i was leaning over the front of the vehicle with my head down to view the back side of the headlamp to remove the bulb, the plastic coolant union bro…”
2020-12-08 · Visibility/Wiper“windshield has cracked on vehicle twice just sitting in the driveway has to be a manufacturer defect.…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.