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Mercedes-Benz · NHTSA safety record

2015 Mercedes-Benz GL450

Every safety complaint, recall and defect investigation the US government holds on this vehicle.

18

Complaints

1

Crashes

2

Fires

1

Injuries

0

Deaths

Owners of the 2015 Mercedes-Benz GL450 have filed 18 safety complaints with NHTSA between December 2014 and March 2026. The most complained-about system is the engine, named in 7 of them (39%). The typical failure was reported at 38,508 miles, the median across the 10 complaints that gave an odometer reading.

NHTSA has issued 3 recalls covering this vehicle.

Recalls (3)

COMMUNICATION

19V787000 · November 1, 2019

The 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
The risk
An inaccurate vehicle location may delay emergency responders, increasing the risk of injury.
The remedy
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.

Mercedes-Benz USA, LLC. · up to 24,226 vehicles across all model years covered · fixed by software update

SUSPENSION:FRONT

18V272000 · April 27, 2018

The 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 Active Curve System (ACS). In certain driving conditions, if the oil level in the ACS reservoir is below the minimum level, the oil may foam and leak out of the vent holes in the reservoir cap.
The risk
The leaking oil in the presence of an ignition source can increase the risk of a fire.
The remedy
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.

Mercedes-Benz USA, LLC. · up to 9,725 vehicles across all model years covered

POWER TRAIN:AXLE ASSEMBLY:AXLE SHAFT

16V900000 · December 14, 2016

The 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.
The 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.
The remedy
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.

Mercedes-Benz USA, LLC. · up to 48 vehicles across all model years covered

What owners report

Complaints naming each system. One complaint can name several, so these add up to more than 18.

ENGINE 7 39%
SEATS 3 17%
SUSPENSION 3 17%
UNKNOWN OR OTHER 3 17%
ELECTRICAL SYSTEM 2 11%
POWER TRAIN 2 11%
ELECTRONIC STABILITY CONTROL (ESC) 1 6%
STEERING 1 6%
STRUCTURE 1 6%
VISIBILITY/WIPER 1 6%

When the complaints arrived

By the year NHTSA received them, which is not the year the failures happened. They peaked in 2015 at 3.

2014 2015 2026
2014 to 2026, the last of them a part year

In owners' own words

Quoted from NHTSA's complaint file. These are unverified accounts by the people who filed them, not findings of fault.

ENGINE

1 injured · 86,230 miles

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 BROKE AT THIS EXACT TIME SHOOTING HOT ENGINE COOLANT ALL OVER MY FACE. I'VE SUFFERED 2ND AND 3RD DEGREE BURNS TO MY FACE, LIPS, NECK AND CHEST AS A RESULT. THE VEHICLE ENGINE WAS ON, AT IDLE SPEED, VEHICLE STATIONARY IN DRIVEWAY.

NHTSA complaint 11390996. Filed by an owner and not verified by NHTSA or by us.

ENGINE

fire · 110,000 miles

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 out to extinguish the fire, there were no injuries. No police report was filed. The vehicle was not diagnosed nor repaired by an independent mechanic or dealer. The manufacturer was made aware of the failure. The failure mileage was approximately 110,000. The consumer stated the vehicle was taken for routine maintenance and twelve days later

NHTSA complaint 11500804, quoted in part. Filed by an owner and not verified by NHTSA or by us.

ENGINE

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 created a serious safety hazard and posed a risk of injury and property damage. The fire required immediate response from the fire department, and the vehicle was declared a total loss. The vehicle is currently in the possession of the insurance company. This incident raises concerns about a potential mechanical or electrical defect. A vehicle should

NHTSA complaint 11728375, quoted in part. Filed by an owner and not verified by NHTSA or by us.

POWER TRAIN

crash · 5,000 miles

TL* THE CONTACT OWNS A 2015 MERCEDES BENZ GL450. WHILE IN PARK, THE VEHICLE STARTED TO ROLL FORWARD AS IF THE VEHICLE WERE IN DRIVE. THE VEHICLE ROLLED OVER A CURB AND CRASHED INTO A TREE. THE VEHICLE WAS DRIVEN TO THE DEALER FOR DIAGNOSTIC TESTING, BUT WAS NOT REPAIRED. NO INJURIES WERE SUSTAINED AND A POLICE REPORT WAS NOT FILED. THE MANUFACTURER WAS NOT NOTIFIED. THE FAILURE MILEAGE WAS 5,000. THE VIN WAS NOT AVAILABLE.

NHTSA complaint 10726816. Filed by an owner and not verified by NHTSA or by us.

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 to repair a camshaft failure and extensive electrical damage. I was unaware of these issues when I purchased this car. I bought it under the illusion that it would be a safe vehicle for me and my children. As a single parent and teacher I invested in this vehicle what I could afford and felt I had purchased a safe, reliable vehicle. I am devasted

NHTSA complaint 11679345, quoted in part. Filed by an owner and not verified by NHTSA or by us.

ENGINE

119,000 miles

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 vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 119,000.

NHTSA complaint 11626901. Filed by an owner and not verified by NHTSA or by us.

ELECTRICAL SYSTEM
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 the seats which caused breathing issues for me and my family. This put our safety at risk! After talking the vehicle to authorized Mercedes Benz dealer in San Jose CA I was told that this is a known defect with the vehicle about which Mercedes Benz Inc is well aware for years and has not fixed it or recalled vehicles having this safety issue. I had

NHTSA complaint 11457171, quoted in part. Filed by an owner and not verified by NHTSA or by us.

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.

NHTSA complaint 11451058. Filed by an owner and not verified by NHTSA or by us.

Compare

Other years of the Mercedes-Benz GL450

Model year Complaints Recalls Deaths
2016 13 5 —
2014 21 3 —
2013 37 3 —
2012 45 3 —
2011 55 3 —
2010 42 3 —

Other 2015 Mercedes-Benz models

C300 379 GLK350 114 GLA 250 93 CLA250 61 ML350 52 S550 41 Sprinter 3500 37 E350 31

Every Mercedes-Benz on this site — 216 vehicles, 576 recall campaigns and 1 open investigation .

If this is your car and a dealer keeps failing to fix it, your state's lemon law may require the manufacturer to replace it or buy it back. What each state asks for , read from the statutes.

Where these numbers come from

A complaint is one owner's account and has not been verified by NHTSA or by us. A vehicle with more complaints is not necessarily worse: models that sold in larger numbers collect more of them. How this is counted.

Compiled and maintained by
Independent developer and analyst