2021 Mercedes-Benz AMG G63 technical service bulletins
155 technical service bulletins and manufacturer communications cover the 2021 Mercedes-Benz AMG G63, including 3 warranty extensions.
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- Fuel/propulsion system
- In our continuing efforts to ensure the proper performance of Mercedes-Benz products and to enhance the...
- Engine
- Customers may notice a check engine light in the instrument cluster and may also complain of rough running
- Repeat workshop visit for vehicle vibration while braking from 60MPH. NOTE: Although the symptom is...
- Only vehicles with a variable transfer case are affected
- Clanking noise from the area of the speakers in the doors
- Noises/ squealing from the service brake in various driving situations and ambient conditions
- 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...
- Oil leaks found on M176 or M177 engines diagnosed to be from the cylinder head cover area
- Customer reports Check Engine Light with possible loss of power concern
- A popup is seen on the HU with the message "data connection temporarily not available". Potentially...
- This document is intended as a pre-case diagnostic reference for transmission related concerns
- Mercedes-Benz USA is currently experiencing limited availability of transmission fluid specification ATF...
- Check Engine Light ON with DTC P012800 "The Coolant Temperature is Below the Specified Temperature" active...
- Engine
- Dear Mercedes-Benz USA Dealers, The part numbers listed in the chart below should no longer be installed,...
- Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end)
- Service code B1 displayed in the customer menu does not match the workshop code displayed in the workshop...
- Harsh upshifts, downshifts, or jolting in lower gears when accelerating
- After successful commissioning of the HERMES control unit (N112/9) with XENTRY Diagnosis DVD 03/2026, the...
- Dear Mercedes-Benz USA Dealers, The part numbers listed in the chart below should no longer be installed,...
- Repeat workshop visit for vehicle vibration while braking from 60MPH. Vehicle production date prior to...
- The part numbers listed in the chart below should no longer be installed, and any existing stock must be...
- 1. General Diagnostic Tips 2. One or More PARK Sensor Activations 3. Red Ring Around Vehicle 4. "Active...
- Water ingress in the load compartment between the C and D pillars
- The intent of
- CEL ON with DTC P012800 "The Coolant Temperature is Below the Specified Temperature" active and stored in...
- Headlamp, front fog lamp leaky or fogged
- The outside mirrors do not fold in when locking with the radio remote control, even though the function is...
- Headlamp, front fog lamp leaky or fogged
- Yellow information message in driver display (instrument cluster): "Switch on motor to charge the 12V battery"
- Engine
- 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
- Check engine light on with the following fault is current in the VGS Control Unit: P084300 Oil pressure...
- CEL on with Code P012800 "The Coolant Temperature is Below the Specified Temperature"
- 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)...
- The concern is characterized by BOTH of the following
- Possible complaints about shift quality, issues with learning the park lock, and slipping/rinse entries in...
- At low speeds and light brake pressure, brakes will make a groaning or honking noise
- The result from the XENTRY battery test does not match the current state of the battery
- Transmission control unit Y3/8n4 (fully integrated transmission control unit (VGS)) not listed in quick...
- Complaint: Creaking or humming noise during adjustment of the electric steering column, see video
- Complaint: Customer complaint concerns wind/clattering noises upwards of 20mph in the area of the...
- Noises/ squealing from the service brake in various driving situations and ambient conditions
- Customer complains of oil use, oil leaking or oil smell
- Height adjustment of electric steering column adjustment jammed in the top/bottom adjustment position...
- In our continuing efforts to ensure the proper performance of Mercedes-Benz products and to enhance the...
- After a software update of HERMES communication module N112/9 has been performed on a gray import vehicle,...
- 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
- A popup is seen on the HU with the message "data connection temporarily not available". Potentially...
- Noises/ squealing from the service brake in various driving situations and ambient conditions
- A clicking/ticking/taping noise from underneath the vehicle with engine off during ECO stop event or after...
- Electrical system
- During a phone call, the called party has difficulty understanding/cannot understand the driver, or...
- Electrical system
- On certain Model Year 2019
- Electrical system
- Electrical system
- After performing a software update either for recall campaign 2023070022 and/or 2022080005 or general...
- The
- Customer complains that CEL is active in instrument cluster
- Play noticeable in the height adjustment of the steering column
- Engine
- "Active Distance Assist currently unavailable" and "Active Brake Assist functions currently limited" are...
- Engine
- After performing a software update either for recall campaign 2023070022 or general course of diagnosis...
- Electrical system
- Engine
- After a control unit replacement of "N112/9
- Transmission control unit Y3/8n4 (fully integrated transmission control unit (VGS)) not listed in quick...
- Only vehicles with a variable transfer case are affected
- Engine
- Washer fluid system leaks
- White plastic insert present on microphone assembly
- When unpacking vehicles with magno night black paint (code 056U) from the full transportation packaging,...
- Noises/ squealing from the service brake in various driving situations and ambient conditions
- Damage or discoloration to paint protection films on vehicle
- Headlamp or front fog lamp leaky or fogged
- To insure vehicle down time is kept at a minimum and all required information is available when case is...
- Rear lamps fogged up/not leaktight
- Unknown or other
- The customer complains of a check engine light (CEL) on. May also complain of the engine running roughly...
- Electrical system
- The steering wheel generates grinding noises between the steering wheel and steering column switch module...
- Noises in the steering column area when steering
- Electrical system
- Crease formation on genuine leather seat covers in vehicles with low mileage ⢠Objects left on the seats...
- In our continuing efforts to assure the proper performance of Mercedes-Benz products and to enhance the...
- The "SOS nonfunctional" message appears sporadically in the instrument cluster of the vehicle
- Electrical system
- Electrical system
- Engine and engine cooling
- The
- Complaint
- Tailgate opens unintentionally
- Height adjustment of electric steering column adjustment jammed in the top/bottom adjustment position...
- Height adjustment of electric steering column adjustment jammed in the top/bottom adjustment position...
- Height adjustment of electric steering column adjustment jammed in the top/bottom adjustment position...
- Equipment
- Customer may have one or more of the following complaints: • Vehicle location is shown incorrectly in the...
- Creaking noise from the upper area of the instrument panel when driving off-road (see Video 1). This noise...
- A metallic buzzing/background noise in the door whenever the sound system is active may be heard
- Windshield heater not activating when expected
- It may not be possible to unlock the vehicle with the key
- MY15+ M278 and M157 Equipped Vehicles with Fault Code ""P023400 – Boost Pressure is Too High"" "
- Creaking or scratching noise heard through speakers during gear shifts "
- M17x.xxx Check Engine Light on with Misfire DTC's
- Complaint: Height adjustment of electric steering column adjustment jams in upper / lower adjustment...
VIN decoder
See the problems and recalls for an exact car
Buying a used 2021 Mercedes-Benz AMG G63?
Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.
Check its history