2025 Mercedes-Maybach GLS 600 4matic technical service bulletins
145 technical service bulletins and manufacturer communications cover the 2025 Mercedes-Maybach GLS 600 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
- Issue A software update will be performed that provides enhancements to the robustness and system...
- 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...
- Dear Dealer Partners, The part numbers listed in the chart below should no longer be installed and any...
- 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
- Electrical system
- 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
- When coming to a stop or at slow speeds, brakes produce light squealing noise
- 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
- Customer reports Check Engine Light with possible loss of power concern
- 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...
- • Fuel filler flap protrudes from side wall • Fuel filler flap not opening
- 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
- Dear Mercedes-Benz USA Dealers, The part numbers listed in the chart below should no longer be installed,...
- There are several types of complaint about noises or poor windshield wiper wiping performance: A: Wiper...
- Approx
- 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...
- Dear Mercedes-Benz USA Dealers, The part numbers listed in the chart below should no longer be installed,...
- Cause At present, there are no known noise problems with the steering column
- Head-up display flickering in BR167
- When coming to a stop or at slow speeds, brakes produce light squealing noise
- 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
- 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
- Customer concern of Air Conditioning not cooling
- This LI does Not apply to 223 or 206 which use a different generation of 48V systems
- Headlamps leaking or fogged
- Tailgate opens unintentionally
- 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 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...
- Engine
- 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
- Coolant level warning in instrument cluster
- Concern 1
- After a software update from campaign 2025050001 of component LIB48_222
- After a software update of component LIB48_222
- Throbbing/humming sound around 60mph
- Customer states CEL is active in instrument cluster, may report rough running
- A pulsating knocking noise (e.g. clattering) can be heard underneath the bench seat, particularly in the...
- 1. Noises in recovery mode with the vehicle stationary 2. Noises when driving in a straight line on rough...
- Complaint: When activating the seat heating for the rear seat cushion, the heating of the backrest is...
- Fuel filler flap/socket flap sticks, cannot be opened
- After a software update for instrument cluster (IC) control unit (N133/1) is performed the following...
- Hand detection system not operating correctly / vehicles with code 266 Fault message in instrument...
- Customer complains of oil use, oil leaking or oil smell
- Customer concern of Air Conditioning not cooling
- The head unit cannot be operated via the steering wheel buttons on the right side
- MBUX head unit display with red text box "System Inoperative". ONLY for vehicles with SA code (549+21U) or...
- Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end)
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