2018 Mercedes-Benz GLS 450 Suspension Problems
- Complaints
- 3about this part
- Share
- 21%of 14 total for the year
- Median mileage
- 8,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the suspension of the 2018 Mercedes-Benz GLS 450, 21% of the 14 complaints for this model year. Where a mileage was given, the median is 8,000 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.
“I took the car to the service 3 times in 4 months. There are many problems with the car. The first problem was that the left rear shock was leaking which made a squeaking noise when driving. There was also an odor problem with the car that was coming from the ventilations. These two problems were fixed. I took the car another time. There was another problem with the eco start/stop function and a problem with the car trunk only closing halfway. The eco start/stop function was fixed but they said that they didn't detect a problem with the trunk. …”
NHTSA complaint #11299367, filed 2020-01, 8,000 miles“This 2018 gls 450 has issues with suspension system. Bought this car in 2023 and using since Jna 2023 and suspension system failed like 3 -4 times. Mechanic changed the air compressor , valves and others and still the car has same issue. It used to lift the car to adequate height but the compressor keeps on pushing it to cause teh compressor to fail.”
NHTSA complaint #11654511, filed 2025-04Related service bulletins
- 11035003Jul 8, 2026Complaint Creaking noise, in irregular sequence when driving slowly in combination with slight steering movements and/or Creaking/crackling noises from the area of the wheel…
- 11034932Jul 7, 2026Complaint Creaking noise, in irregular sequence when driving slowly in combination with slight steering movements and/or Creaking/crackling noises from the area of the wheel…
- 11032751May 15, 2026Complaint Noises at the front axle when cornering or maneuvering (video files attached) Note: Save video files locally and play them with Windows Media Player. Cause Driving with…
- 11032736May 15, 2026The part numbers listed in the chart below should no longer be installed, and any existing stock must be returned to your facing PDC. The deadline for all dealer returns is no…
- 11032599May 12, 2026Complaint Creaking noise, in irregular sequence when driving slowly in combination with slight steering movements and/or Creaking/crackling noises from the area of the wheel…
- 11013183Jan 28, 2025Complaint Creaking noise, in irregular sequence when driving slowly in combination with slight steering movements. Sound file attached for comparison. NOTE: Steering…
- 11008070Sep 26, 2024Complaint Creaking noise, in irregular sequence when driving slowly in combination with slight steering movements. Sound file attached for comparison. NOTE: Steering…
- 10162179May 3, 2019Check right and left torsion bar linkage, replace if necessary
- 10158391Nov 9, 2018Check front axle carrier and replace if necessary
Suspension: other model years
Other parts of the 2018 Mercedes-Benz GLS 450
3 complaintsElectrical system
2 complaintsEngine
2 complaintsBody and structure
2 complaintsElectronic stability control
1 complaintsExterior lighting
1 complaintsForward collision avoidance
1 complaintsFuel system
1 complaintsOther or unknown
1 complaintsSeats
1 complaintsSteering
1 complaintsTransmission and drivetrain
1 complaints
← All problems reported for the 2018 Mercedes-Benz GLS 450
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