2026 Mercedes Benz AMG Gls63 4matic+ technical service bulletins
57 technical service bulletins and manufacturer communications cover the 2026 Mercedes Benz AMG Gls63 4matic+.
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- Customers may notice a check engine light in the instrument cluster and may also complain of rough running
- Harsh upshifts, downshifts, or jolting in lower gears when accelerating
- Customer concern of Air Conditioning not cooling
- Customer states that the yellow "Coolant" message is populated in the instrument cluster
- Subject vehicles were visible and flagged in VMI as “OPEN” under campaign 2026080002 in Netstar-VMI on...
- Issue A software update will be performed that provides enhancements to the robustness and system...
- Slight creaking noises when steering
- Power train
- Repeat workshop visit for vehicle vibration while braking from 60MPH. NOTE: Although the symptom is...
- Red coolant warning in instrument cluster
- Radio station cover art does not refresh when switching stations
- Whining / humming noises (described as foghorn‑like) from the drivetrain in the rear axle area during...
- Clanking noise from the area of the speakers in the doors
- Traffic sign symbol for "Traffic Sign Assist" is blinking in instrument cluster without obvious
- Electrical system
- CEL light on with no drivability concerns
- Cause Internal failure of the scroll wheel within the AC compressor
- When coming to a stop or at slow speeds, brakes produce light squealing noise
- Noises/ squealing from the service brake in various driving situations and ambient conditions
- Noise from front end thought to be from steering gear
- During part of the steering movement, it feels heavier or more difficult to steer in the same spot every time
- Tailgate opens unintentionally
- 1. General Diagnostic Tips 2. One or More PARK Sensor Activations 3. Red Ring Around Vehicle 4. "Active...
- Oil leaks found on M176 or M177 engines diagnosed to be from the cylinder head cover area
- CEL light on with no drivability concerns
- Check Engine Light ON with DTC P012800 "The Coolant Temperature is Below the Specified Temperature" active...
- Noise from front end attributable to steering gear
- Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end)
- Traffic sign symbol for "Traffic Sign Assist" is blinking in instrument cluster without obvious
- Dear Mercedes-Benz USA Dealers, The part numbers listed in the chart below should no longer be installed,...
- 1. "Perform vehicle handover" in the workshop menu to start the maintenance computer for service A/B...
- Service code B1 displayed in the customer menu does not match the workshop code displayed in the workshop...
- Rattle or clunking noise from underneath the vehicle when driving over uneven/bumpy surfaces
- Dear Mercedes-Benz USA Dealers, The part numbers listed in the chart below should no longer be installed,...
- After successful commissioning of the HERMES control unit (N112/9) with XENTRY Diagnosis DVD 03/2026, the...
- Noises from the area of the steering column
- Repeat workshop visit for vehicle vibration while braking from 60MPH. Vehicle production date prior to...
- Approx
- Noises at the front axle when cornering or maneuvering (video files attached) Note: Save video files...
- Despite the IC message shown in these complaints, the primary low-beam function is not restricted
- Creaking noise, in irregular sequence when driving slowly in combination with slight steering movements...
- 1. General Diagnostic Tips 2. One or More PARK Sensor Activations 3. Red Ring Around Vehicle 4. "Active...
- Cause At present, there are no known noise problems with the steering column
- Head-up display flickering in BR167
- There may be a cosmetic fault in the projection of the logo projector of the outside mirror (left/right)
- Head-up display flickers
- Headlamp, front fog lamp leaky or fogged
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