definitely annoying
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
30,285 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2007 Mercedes-Benz GL450 engine problems

engine problem

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2007 Mercedes-Benz GL450 Owner Comments

problem #4

Sep 282011

GL450 8-cyl

  • 105,000 miles


Check engine light-- caused by timing chain and sprocket wear-- common issue with many merz of this type of engine.

- Toms River , NJ, USA

problem #3

Jan 012011


  • 1,000 miles
The contact owns a 2007 Mercedes Benz GL450. The contact stated that the vehicle would stall sporadically without warning. The vehicle would first power down and the lights would flicker on and off before stalling. The dealer was in the process of diagnosing the failure. The manufacturer promised to call the contact back with some assistance for repairs. The vehicle was not repaired. The failure mileage was 1,000 and the current mileage was 15,000.

- Maspeth, NY, USA

problem #2

Nov 272007

GL450 8-cyl

  • Automatic transmission
  • 11,139 miles
The contact owns a 2007 Mercedes Benz GL450. While driving 65 mph, the vehicle shut off without warning. The contact pulled to the side of the road and the vehicle was towed to the dealer. The dealer has been unable to determine the cause of the failure. This failure has occurred previously. The current and failure mileages were 11,139.

- Desoto, TX, USA

problem #1

Jan 022007

GL450 8-cyl

  • Automatic transmission
  • 4,000 miles
The contact owns a 2007 Mercedes Benz GL450. The contact heard a squeaking noise when he depressed the brake pedal and the stopping distance increased. The dealer was unable to diagnose the cause of failure, however, they grinded the edges of the brake pads to reduce the squeaking noise. The speed was unknown. The failure mileage was 4,000 and current mileage was 6,600. The dealer recommended chamfering the brake pads to alleviate the noise. The dealer stated vehicle low on oil. Updated 09/2807

- San Jose, CA, USA

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