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7.1

pretty bad
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
8,000 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.

2016 Mercedes-Benz GL450 miscellaneous problems

miscellaneous problem

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2016 Mercedes-Benz GL450 Owner Comments

problem #3

May 012022

GL450

  • miles

A D V E R T I S E M E N T S

Air Conditioner always make musty / moldy odor. Many forums says that is a common problem all across Mercedes models and it causes allergic reaction resulting in sneezing all the time when a/c is on. Problem is especially bad for my kids who have environmental allergy like mold/mildew. This horrible odor coming from a/c is due to mold/mildew forming on condenser. Please order a recall ASAP.

- Carrollton, TX, USA

problem #2

Aug 102021

GL450 6-cyl

  • miles
1. Transmission spontaneously disengaged park to allow the car to roll backwards 10 feet. No one was in the car at the time of the incident. I have a security system video of the incident. 2. Spontaneous runaway vehicle could have crashed children in the driveway or the street. 3. The dealer is not available to reproduce the problem. 4. No one performed any inspections at this time. 5. The vehicle did not present any warnings messages or other symptoms of the problem prior to the failure. I have a security system video that shows the vehicle parked and 20 minutes latter the vehicle spontaneously moving backwards a few feet and then stops. Please contact for a copy of this video.

- Ammon, ID, USA

problem #1

May 022018

GL450

  • 24,000 miles
The sunroof in this vehicle shattered overnight without any known cause. The vehicle was parked in the driveway at my home. No one was injured in this incident. The vehicle was last driven at 10 P.M. on 05/01/18 without the damage, and at 7:30 a.M. this morning, 05/02/18, when I was getting ready to leave my home, I noticed the middle of the sunroof was sticking up a little bit...it looked like a punch from the inside. When I opened the door, a big piece of the middle of the sunroof fell down onto the screen underneath it and the rest of it was shattered but still in place. This was the first day of really warm weather we have had in a while and I don't know if that could be related to the cause. We took the vehicle to the Mercedes Benz dealership and the representative there said he had never heard of this happening; however, there are many incidents reported on the internet of this exact same issue. I hope you can force them to look into this issue for safety reasons and also for the monetary expense to the consumer. It should be a warranty repair item.

- Virginia Beach, VA, USA

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