2025 Mercedes-Benz GLS 450 4MATIC Engine cooling Problems
- Complaints
- 1about this part
- Share
- 14%of 7 total for the year
- Median mileage
- 14,050miles
- Trend
- Too newThis model year is less than 4 years old, so a trend is not meaningful yet.
NHTSA recorded 1 complaints about the engine cooling of the 2025 Mercedes-Benz GLS 450 4MATIC, 14% of the 7 complaints for this model year. Where a mileage was given, the median is 14,050 miles.
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.
“The contact owns a 2025 Mercedes-Benz GLS450 4Matic. The contact stated that while driving at an undisclosed speed, the engine overheated, with several unknown warning lights illuminated. The vehicle was taken to the dealer, where it was diagnosed that the coolant pump had failed and needed to be replaced. The vehicle was repaired. The contact then stated that while driving at an undisclosed speed, there was a metallic clicking sound was coming from the engine compartment, and there were no warning lights illuminated. …”
NHTSA complaint #11692173, filed 2025-10, 14,050 milesEngine cooling: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2025 | 1 | 14% |
Other parts of the 2025 Mercedes-Benz GLS 450 4MATIC
2 complaintsElectrical system
2 complaintsEngine
1 complaintsForward collision avoidance
1 complaintsLane departure
1 complaintsSeat belts
1 complaintsSteering
1 complaintsBody and structure
1 complaintsSuspension
1 complaintsVisibility (wipers, defrost, mirrors)
1 complaints
← All problems reported for the 2025 Mercedes-Benz GLS 450 4MATIC
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Nov 1, 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