2021 Mercedes-Benz GLS580 technical service bulletins
269 technical service bulletins and manufacturer communications cover the 2021 Mercedes-Benz GLS580, including 4 warranty extensions.
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- Dear Mercedes-Benz Owner: In our continuing efforts to ensure the proper performance of Mercedes-Benz...
- Fuel/propulsion system
- In our continuing efforts to ensure the proper performance of Mercedes-Benz products and to enhance the...
- Engine
- Customer concern of Air Conditioning not cooling
- Customer complaints relating to automatic transmission 725.0 (NAG3 Classic /9G‑TRONIC automatic...
- Slight creaking noises when steering
- 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...
- Only vehicles with a variable transfer case are affected
- 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
- CEL light on with no drivability concerns
- Customer complaints relating to automatic transmission 725.0 (NAG3 Classic / 9G‑TRONIC automatic...
- Cause Internal failure of the scroll wheel within the AC compressor
- 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
- 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...
- 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
- Hand detection system – malfunction / vehicles with code 266 Fault message in instrument cluster: "Active...
- 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,...
- Throbbing/humming sound around 60mph
- 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
- Dear Mercedes-Benz USA Dealers, The part numbers listed in the chart below should no longer be installed,...
- The part numbers listed in the chart below should no longer be installed, and any existing stock must be...
- 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
- The intent of
- There may be a cosmetic fault in the projection of the logo projector of the outside mirror (left/right)
- CEL ON with DTC P012800 "The Coolant Temperature is Below the Specified Temperature" active and stored in...
- Head-up display flickers
- Headlamp, front fog lamp leaky or fogged
- Approx
- Radio station cover art does not refresh when switching stations
- 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
- Yellow information message in driver display (instrument cluster): "Switch on motor to charge the 12V battery"
- When coming to a stop or at slow speeds, brakes produce light squealing noise
- This LI does Not apply to 223 or 206 which use a different generation of 48V systems
- Headlamps leaking or fogged
- Tailgate opens unintentionally
- Engine
- Check engine light on with the following fault is current in the VGS Control Unit: P084300 Oil pressure...
- Noise from front end attributable to steering gear
- CEL on with Code P012800 "The Coolant Temperature is Below the Specified Temperature"
- Head-up display permanently or sporadically unavailable
- Model Year 2019-2022 167 (GLE/GLS)
- Customer concern of Air Conditioning not cooling
- 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
- The
- (Original LI document #: LI27.35-P-079039) Clicking noises from the electro-hydraulic control unit (EHS)...
- The flap of the reversing camera opens and closes by itself during forward travel several times during the...
- ESP®, BAS, PRE-SAFE®, HOLD function, Hill-Start Assist, ESP® trailer stabilization, Adaptive Brake Lights,...
- Displayed Message: “Driver camera not functioning, see Operator’s Manual”
- Possible complaints about shift quality, issues with learning the park lock, and slipping/rinse entries in...
- Head-up display permanently or sporadically unavailable
- At low speeds and light brake pressure, brakes will make a groaning or honking noise
- The "Easy entry and exit feature" function deactivates itself after a brief period
- The result from the XENTRY battery test does not match the current state of the battery
- Concern 1
- After a software update of component LIB48_222
- 1. Howling noises from the area of the rear axle 2. Oil discoloration is present during oil change (water...
- MBUX head unit display with red text box "System Inoperative". ONLY for vehicles with SA code (549+21U) or...
- In our continuing efforts to ensure the proper performance of Mercedes-Benz products and to enhance the...
- Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end)
- Customer concern of Air Conditioning not cooling
- Customer concern of Air Conditioning not cooling
- Electrical system
- Please note that the exact quick test conditions must be met as seen below
- Individual functions such as sliding sunroof or roller sunblind can no longer be operated using the...
- Hand detection system not operating correctly / vehicles with code 266 Fault message in instrument...
- Headlamp, front fog lamp leaky or fogged
- A pulsating knocking noise (e.g. clattering) can be heard underneath the bench seat, particularly in the...
- Instrument cluster message for rear turn signal lamp despite functioning rear lamp
- A clicking/ticking/taping noise from underneath the vehicle with engine off during ECO stop event or after...
- During a phone call, the called party has difficulty understanding/cannot understand the driver, or...
- The flap of the reversing camera opens and closes by itself during forward travel several times during the...
- Customer-perceived problem: • Fuel gauge reading implausible • MIL ON (market-dependent) N118/3 Fault...
- On certain Model Year 2019
- Noises/ squealing from the service brake in various driving situations and ambient conditions
- Electrical system
- Fuel door may require several attempts to open
- If TRANSMISSION 725.1 (9G TRONIC FACELIFT) exhibits any "shift quality" problem symptoms, various...
- The
- Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end)
- When using the offroad display in the MBUX, the "Transparent hood" function cannot be activated using the...
- Electrical system
- Play noticeable in the height adjustment of the steering column
- The vehicle's position on the map is displayed far away from its actual position, e.g. the vehicle is...
- After a software update, the MBUX multimedia system (A26/17) may incorrectly display the fault code...
- Electrical system
- After a control unit replacement of "N112/9
- Transmission control unit Y3/8n4 (fully integrated transmission control unit (VGS)) not listed in quick...
- One or more of the seats in the second or third row cannot be folded over when the switch group in the...
- Rear lamps fogged up/not leaktight
- When using the offroad display in the MBUX, the "Transparent hood" function cannot be activated using the...
- Only vehicles with a variable transfer case are affected
- Customer complains about anti-theft alarm system triggering without obvious cause when the vehicle is...
- Automatic window raising function of side window inoperative
- Washer fluid system leaks
- After clicking on the "Radio" selection function, the radio does not start and instead a permanent loading...
- When using the offroad display in the MBUX, the "Transparent hood" function cannot be activated using the...
- Customer concern of Air Conditioning not cooling
- Individual functions such as sliding sunroof or roller sunblind can no longer be operated using the...
- 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...
- • Head-up display permanently or sporadically unavailable
- Customer concern of Air Conditioning not cooling
- Yellow coolant warning system message appears in instrument cluster
- Customer complaints relating to automatic transmission 725.0 (NAG3 Classic / 9G-TRONIC automatic...
- • Seats cannot be adjusted • Seats cannot be folded • Seats in the 2nd seat row cannot be locked or...
- The following event codes are logged in control unit IDC213
- Customer concern of Air Conditioning not cooling
- 1. Cracking noises from the area of the rear axle 2. or a message in the instrument cluster "ESP, ABS failed".
- Message in Instrument Cluster: "Active Brake Assist function restricted". The driver assistance systems...
- Customer concern of Air Conditioning not cooling
- Work procedure 1. Connect XENTRY Diagnosis
- Electrical system
- High-frequency interference noise may be heard from the speakers while driving
- In our continuing efforts to assure the proper performance of Mercedes-Benz products and to enhance the...
- This is to notify you of the Service Campaign OTA update for the MBUX system software in 750,313 Model...
- Customer concern of Air Conditioning not cooling
- Check engine light active and FC P146364 Temp
- Important emission extended warranty information
- Electrical system
- The radio station favorites list is no longer present after bus idle Saving process during download...
- After clicking on the "Radio" selection function, the radio does not start and instead a permanent loading...
- Electrical system: software
- Electrical system
- A knocking noise can be heard from the area of the steering gear or steering column tube, and a "cracking"...
- 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
- Customer complains about anti-theft alarm system triggering without obvious cause when the vehicle is...
- Electrical system
- Crease formation on genuine leather seat covers in vehicles with low mileage ⢠Objects left on the seats...
- Electrical system
- In our continuing efforts to assure the proper performance of Mercedes-Benz products and to enhance the...
- Excessive resistance of door side windows when being raised/lowered, cracking and/or squeaking noises
- The "SOS nonfunctional" message appears sporadically in the instrument cluster of the vehicle
- Electrical system
- Engine and engine cooling
- In the MBUX weather app, the temperature is displayed in the wrong unit (Fahrenheit instead of °C, or vice...
- Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz, has produced certain MY 2021-2022 A-Class,...
- Electrical system
- 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...
- Metallic noises from area of instrument panel
- Customer states after a bus sleep the SiriusXM category changes from "My Favorites" to "All...
- Equipment
- Equipment
- Electrical system
- Equipment: other: owners/service/other manual
- Cause Communication fault between electrohydraulic suspension component parts through out-of-date software...
- • Seats cannot be adjusted • Seats cannot be folded • Seats in the 2nd seat row cannot be locked or...
- Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz, has produced certain MY 2021-2022 A-Class,...
- Intermittently, engine switches off within a few seconds after being started via the Remote Engine Start...
- Electrical system: ignition: anti-theft: immobilizer/proximity: key/sender
- Engine and engine cooling: exhaust system: emission control
- Perform SCN coding in the active suspension and damping system control unit
- Replace bolts for centering flange on integrated starter-alternator
- Equipment
- Equipment
- AIRMATIC fault message in instrument cluster
- MY15+ M278 and M157 Equipped Vehicles with Fault Code ""P023400 – Boost Pressure is Too High"" "
- Check coolant line of battery cooling, replace if necessary
- New service campaign launch information.
- Model series 167 noise on B/C/D pillars.
- Excessive resistance of door side windows when being raised/lowered, cracking and squeaking noises.
- Sporadic warning message in instrument cluster "Engine oil pressure stop switch off vehicle"" or similar...
- Yellow "Coolant" message in instrument cluster.
- Launch NCU
- With engine M17x the ME Control Unit: "The Coolant Temperature is Below the Specified Temperature"
- Noise From Air Conditioner Housing (Humming)
- Complaint: When removing the steering column switch module, a fracture may occur in the bridge of the...
- Armrest In Center Console (Front) Only Opens On One Side Or Not At All
- Unmotivated park sensor warnings without any objects in the vicinity
- Suspension fault message in instrument cluster to drive at max
- Air bags
- The seat cushion cover on the front seat cracks when side bolster is equipped with "ARTICO man-made...
- If the exhaust flap is operated or the drive program is changed within 10 seconds of the engine being...
- The backrests of the second seat row (60% and 40% side) are offset relative to each other.
- 1. Noises in recovery mode with the vehicle stationary 2. Noises when driving in a straight line on rough...
- Warning display message for eSuspension, various causes and remedies listed.
- Tires: pressure monitoring and regulating systems
- 167 GLS headlight low beam fault
- Gasket may settle causing a slight oil leak.
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