2022 Mercedes-Benz GLS 450 4MATIC Engine Problems
- Complaints
- 3about this part
- Share
- 18%of 17 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the engine of the 2022 Mercedes-Benz GLS 450 4MATIC, 18% of the 17 complaints for this model year. 1 of these say a crash was involved, according to the filers.
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.
“As I approached a red light and removed my foot from the gas pedal to brake, my dashboard displayed several alarming messages: “Active Brake Assist Functions Limited See Owner's Manual,” “Active Blind Spot Assist Inoperative,” “To Deselect P or N Depress Brake and Start Engine,” and “Traction Control Inoperative See Owner's Manual.” Subsequently, all dashboard lights illuminated, the engine turned off, and the car shifted into neutral from drive, preventing me from restarting it. Despite turning on my hazard lights, I was stuck in the middle lane while the light turned green. …”
NHTSA complaint #11592527, filed 2024-06“Car went into limp mode which causes loss of acceleration on major highway. This same issue of going into limp mode happened August of 2022 when the vehicle has less than 1000 miles. The car has 5750 miles and the temperature gauge showed yellow. Then the the yellow engine light came on and then the car went into limp mode where the engine loses power.”
NHTSA complaint #11508960, filed 2023-02“Vehicle lost power while driving on a busy freeway and came to a complete stop and would not restart resulting in it being struck by a vehicle in the rear. More information available in the collision center pre estimate scan and full estimate.”
NHTSA complaint #11632849, filed 2024-12Related service bulletins
- 11038185Sep 26, 2026Complaint Sporadic warning message in instrument cluster "Engine oil pressure, stop switch off vehicle" (or similar) is shown in red on vehicles with low mileage. Cause…
- 11038176Sep 17, 2026Complaint Red coolant warning in instrument cluster. Fault codes U019F00 or U019F87 current/stored in MRG1 control unit. Cause Various causes Remedy Perform guided test for fault…
- 11028807Feb 14, 2026Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, the engine control unit software does not correspond to current…
- 11026596Dec 6, 2025Complaint <p>ESP®, BAS, PRE-SAFE®, HOLD function, Hill-Start Assist, ESP® trailer stabilization, Adaptive Brake Lights, Lane Keeping Assist, Blind Spot Assist, Adaptive Brake…
- 11015545Mar 4, 2025Complaint Check engine light illuminated Fault code present in MRG3 control unit P22C800 or P22C900 - The valve of the exhaust gas turbocharger is jammed. Cause Check valve in…
- 11012056Dec 19, 2024Complaint Check engine light illuminated Fault code present in MRG3 control unit P22C900 - The valve of the exhaust gas turbocharger is jammed closed. Cause Check valve in charge…
- 11012055Dec 19, 2024Complaint Low engine oil level warning. Engine oil leak under vehicle. Cause Rear crankshaft radial seal rolled during installation Remedy -Check for external oil leak with…
- 11010744Nov 19, 2024Complaint Engine cooling fan running for an extended time after switching off vehicle. Cause Optimized thermal management in latest PTCU software. Remedy This is a normal…
- 11005347Jul 31, 2024Complaint Yellow coolant warning system message appears in instrument cluster. Fault code P048392 or P048397 present in N127 Powertrain Control Unit. Cause Faulty communication…
Engine: other model years
Other parts of the 2022 Mercedes-Benz GLS 450 4MATIC
6 complaintsElectrical system
4 complaintsForward collision avoidance
4 complaintsTransmission and drivetrain
4 complaintsVehicle speed control
3 complaintsBrakes
2 complaintsFuel system
2 complaintsLane departure
1 complaintsVisibility (wipers, defrost, mirrors)
1 complaintsWheels
1 complaints
← All problems reported for the 2022 Mercedes-Benz GLS 450 4MATIC
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