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2020 Mercedes-Benz GLS 580 4MATIC Owner Complaints

Reports submitted to NHTSA by owners and drivers, shown in full

Data refreshed

Complaints on fileComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
2
Latest Dec 15, 2025
Crash or fire reportedComplaints whose submitter recorded that a crash or a fire occurred. These are the reporter's own answers on the NHTSA form, not verified findings.
0
Filed in the last 12 monthsReports filed with NHTSA in the trailing 365 days. Recent volume reflects attention and vehicle age as much as anything else.
1
Reports on file since Apr 1, 2025

What this page shows

Our database holds 2 NHTSA owner-reported complaints for the 2020 Mercedes-Benz GLS 580 4MATIC. Each one is a report filed by an owner or driver and published by NHTSA without most of them being verified. A complaint is not a confirmed defect, not a recall and not a manufacturer bulletin. Narratives are shown exactly as filed.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

Complaints, most recent first

Showing 1–2 of 2

Fuel system
Filed Dec 15, 2025

The fuel rail system failed on the passenger side of the engine and leaks. This is the same issue seen on, but VIN number isn't apart of it: Campaign No. : 2022030003 CA DMV. : 220303 NHTSA ID 21V961 I have taken the vehicle to a Mercedes dealer twice for the concern of smelling gas. The second time I had a video but the service tech couldn't replicate the leak. This safety concern pose a great risk as the gas could come into contact with a hot surface and ignite but passenger at HIGH risk. The problem has taken to the dealer twice with video showing the leak., however they cannot reproduced confirmed/replicate it. No the vehicle or component has not been inspected by the police, insurance representatives or others? But has been taken to the dealership, not the manufacturer. No warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear?Just when it leaks there is a strong gas smell as well as a visual of where the leak is coming from.

NHTSA ID
11705195
Incident
Dec 31, 1969
Suspension
Filed Apr 1, 2025

The suspension has failed despite changing engine mounts. It is available for inspection if needed. I also believe there is Premature wear of the front struts and rear shock absorbers. This can affect vehicle handling and control, increasing the risk of a crash. There were no warning lamps and it has been inspected by various mechanics including Mercedes

NHTSA ID
11652075
Incident
Jan 17, 2025

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.

Data sources

Data on this page last refreshed .