2025 Mercedes-Benz G 550 technical service bulletins
67 technical service bulletins and manufacturer communications cover the 2025 Mercedes-Benz G 550.
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- Repeat workshop visit for vehicle vibration while braking from 60MPH. NOTE: Although the symptom is...
- Clanking noise from the area of the speakers in the doors
- CEL light on with no drivability concerns
- Cause Internal failure of the scroll wheel within the AC compressor
- Consistently reproducible erroneous parktronic warnings from front with every key cycle
- 1. General Diagnostic Tips 2. One or More PARK Sensor Activations 3. Red Ring Around Vehicle 4. "Active...
- CEL light on with no drivability concerns
- Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end)
- CEL light on with no drivability concerns
- 1. "Perform vehicle handover" in the workshop menu to start the maintenance computer for service A/B...
- CEL light on with no drivability concerns
- Service code B1 displayed in the customer menu does not match the workshop code displayed in the workshop...
- 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...
- Customer reports discoloration, staining, or blotchy marks on the black running boards for vehicles...
- Engine
- 1. General Diagnostic Tips 2. One or More PARK Sensor Activations 3. Red Ring Around Vehicle 4. "Active...
- The intent of
- Headlamp, front fog lamp leaky or fogged
- The vehicle's position on the map is displayed far away from its actual position, e.g. the vehicle is...
- Headlamp, front fog lamp leaky or fogged
- Noise interference when using the hands-free system (phone call)
- Yellow information message in driver display (instrument cluster): "Switch on motor to charge the 12V battery"
- CEL light on with no drivability concerns
- Wind noises from the area of the A-pillars on driver's and/or front passenger side
- After removing the transport protection from new vehicles, localized cloudy spots or streaks may appear on...
- Water ingress at the sliding sunroof can lead to moisture in the interior
- Customer states the AC either does not cool/has poor performance or heat is insufficient
- Customer states check engine light on in the dash
- Customer states the AC either does not cool/has poor performance or heat is insufficient
- Customer reports illuminated CEL. Additionally no start condition, lack of power, failure to recover from...
- (Original LI document #: LI27.35-P-079039) Clicking noises from the electro-hydraulic control unit (EHS)...
- Displayed Message: “Driver camera not functioning, see Operator’s Manual”
- USB port not functioning properly
- Possible complaints about shift quality, issues with learning the park lock, and slipping/rinse entries in...
- Only vehicles with a variable transfer case are affected
- At low speeds and light brake pressure, brakes will make a groaning or honking noise
- Noise interference occurs during hands-free phone calls
- The result from the XENTRY battery test does not match the current state of the battery
- 243: Red 12V battery message, white HV warning message, warning message in the IC and if applicable for...
- Check engine light illuminated
- Complaint: 243: Red 12V battery message, white HV warning message, warning message in the IC and if...
- Electrical system
- 1. Connect XENTRY Diagnosis
- Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end)
- Headlamp, front fog lamp leaky or fogged
- Headlamps leaking or fogged
- The surface of the fuel filler flap may have visual reflections of light or waviness depending on the...
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