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Other or unknownPart report

2015 Mercedes-Benz GL450 Other or unknown Problems

Complaints
3about this part
Share
17%of 18 total for the year
Median mileage
52,015miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 3 complaints about the other or unknown of the 2015 Mercedes-Benz GL450, 17% of the 18 complaints for this model year. Where a mileage was given, the median is 52,015 miles. 1 a fire, according to the filers.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“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. …”

NHTSA complaint #11728375, filed 2026-03

“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.”

NHTSA complaint #11442843, filed 2021-12

Other or unknown: other model years

YearComplaintsShare of year
2016538%
2015317%
2014314%
2013411%
201224%
201135%
201012%
2009320%
200859%
200733%

Other parts of the 2015 Mercedes-Benz GL450

Engine
7 complaints
Seats
3 complaints
Suspension
3 complaints
Electrical system
2 complaints
Transmission and drivetrain
2 complaints
Electronic stability control
1 complaints
Steering
1 complaints
Body and structure
1 complaints
Visibility (wipers, defrost, mirrors)
1 complaints

← All problems reported for the 2015 Mercedes-Benz GL450

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology