2023 Mercedes-Benz E 450 technical service bulletins
174 technical service bulletins and manufacturer communications cover the 2023 Mercedes-Benz E 450, including 2 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
- Sporadic warning message in instrument cluster "Engine oil pressure, stop switch off vehicle" (or similar)...
- 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
- Clanking noise from the area of the speakers in the doors
- Customer complaints relating to automatic transmission 725.0 (NAG3 Classic / 9G‑TRONIC automatic...
- During part of the steering movement, it feels heavier or more difficult to steer in the same spot every time
- Tailgate opens unintentionally
- 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...
- Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end)
- Creaking noise, in irregular sequence when driving slowly in combination with slight steering movements...
- Dear Mercedes-Benz USA Dealers, The part numbers listed in the chart below should no longer be installed,...
- Service code B1 displayed in the customer menu does not match the workshop code displayed in the workshop...
- The customer requests deactivation of the N112/9 HERMES communication module Note: Deactivation of the...
- 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,...
- There are several types of complaint about noises or poor windshield wiper wiping performance: A: Wiper...
- The part numbers listed in the chart below should no longer be installed, and any existing stock must be...
- The intent of
- The part numbers listed in the chart below should no longer be installed, and any existing stock must be...
- Headlamp, front fog lamp leaky or fogged
- When closing the door, the side window may remain slightly open (short stroke position)
- Headlamp, front fog lamp leaky or fogged
- The seat may no longer be adjustable using the electric seat adjustment switch on the door module
- Yellow information message in driver display (instrument cluster): "Switch on motor to charge the 12V battery"
- 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
- Unknown or other
- Check engine light on with the following fault is current in the VGS Control Unit: P084300 Oil pressure...
- Only vehicles with a variable transfer case are affected
- Red ring displayed around vehicle when front or rear camera door actuates
- Customer states the AC either does not cool/has poor performance or heat is insufficient
- Customer states the AC either does not cool/has poor performance or heat is insufficient
- (Original LI document #: LI27.35-P-079039) Clicking noises from the electro-hydraulic control unit (EHS)...
- ESP®, BAS, PRE-SAFE®, HOLD function, Hill-Start Assist, ESP® trailer stabilization, Adaptive Brake Lights,...
- The shift from 1st to 2nd gear may be uncomfortable under light load
- Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end)
- 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
- See Attachment
- Transmission control unit Y3/8n4 (fully integrated transmission control unit (VGS)) not listed in quick...
- After a software update from campaign 2025050001 of component LIB48_222
- After a software update of component LIB48_222
- One of the flush door handles (Also referred to as Seamless Door Handles) does not extend/retract (and/or)...
- Users report that the browser no longer supports search queries entered directly into the address bar
- No cooling output, compressor inoperative
- Electrical system
- Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has updated driver assistance system SCN...
- Height adjustment of electric steering column adjustment jammed in the top/bottom adjustment position...
- MBUX head unit display with red text box "System Inoperative". ONLY for vehicles with SA code (549+21U) or...
- Squeaking or creaking noises on uneven roadways, in turns, or when moving in their seat
- After a software update of HERMES communication module N112/9 has been performed on a gray import vehicle,...
- Electrical system
- Please note that the exact quick test conditions must be met as seen below
- Hand detection system not operating correctly / vehicles with code 266 Fault message in instrument...
- Headlamp, front fog lamp leaky or fogged
- A popup is seen on the HU with the message "data connection temporarily not available". Potentially...
- A clicking/ticking/taping noise from underneath the vehicle with engine off during ECO stop event or after...
- MBUX headunit display with red text box "System Inoperative". ONLY for vehicles with SA code (549+21U) or...
- Rear side window reversed when opening/closing soft top
- The message "Device detected at diagnostics connection See Owner’s Manual" appears sporadically in the...
- Electrical system
- Electrical system
- During a phone call, the called party has difficulty understanding/cannot understand the driver, or...
- Check engine light illuminated Fault code present in MRG3 control unit P22C800 or P22C900
- Customer-perceived problem: • Fuel gauge reading implausible • MIL ON (market-dependent) N118/3 Fault...
- Electrical system
- Electrical system
- Noises/ squealing from the service brake in various driving situations and ambient conditions
- Electrical system
- Creaking noise, in irregular sequence when driving slowly in combination with slight steering movements
- Noise from area of instrument panel Noise might occur in the following conditions
- Fuel door may require several attempts to open
- If TRANSMISSION 725.1 (9G TRONIC FACELIFT) exhibits any "shift quality" problem symptoms, various...
- Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end)
- Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end)
- Low engine oil level warning
- Check engine light illuminated Fault code present in MRG3 control unit P22C900
- 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...
- Engine cooling fan running for an extended time after switching off vehicle
- Rear lamps fogged up/not leaktight
- Only vehicles with a variable transfer case are affected
- Washer fluid system leaks
- Fuel/propulsion system
- Tension-releasing impact of the propeller shaft with the force-free in D "KID" function, after vehicle has...
- White plastic insert present on microphone assembly
- Surface-flush door handle fails to retract and/or extend
- Engine does not restart from ECO start
- Headlamp or front fog lamp leaky or fogged
- Headlamps fogged or droplets forming
- To insure vehicle down time is kept at a minimum and all required information is available when case is...
- Customer complaints relating to automatic transmission 725.0 (NAG3 Classic / 9G-TRONIC automatic...
- Noticeable vibrations at the steering wheel: • At speeds between 40mph and 75mph • On straight stretches...
- The driver's seat memory settings do not synchronize with the driver's user profile as described in the...
- Wheels
- This is to notify you of the Service Campaign OTA update for the MBUX system software in 750,313 Model...
- Tailgate opens unintentionally
- The radio station favorites list is no longer present after bus idle Saving process during download...
- Electrical system: software
- 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
- Electrical system
- Crease formation on genuine leather seat covers in vehicles with low mileage ⢠Objects left on the seats...
- Electrical system
- Wheezing noises from the front shock absorbers when passing over surface undulations and rough road
- Rear side window reversed when opening/closing soft top
- Electrical system
- The Mercedes me connect services cannot be activated
- In the MBUX weather app, the temperature is displayed in the wrong unit (Fahrenheit instead of °C, or vice...
- The trunk lid is not drawn into the end position with the help of the trunk lid power closing function...
- Loads induced at the steering wheel through pushing and pulling actions may
- The trunk lid is not latching into the closed position with the help of the trunk lid power closing...
- Complaint
- This LI does Not apply to 223 or 206 which use a different generation of 48V systems
- Height adjustment of electric steering column adjustment jammed in the top/bottom adjustment position...
- The trunk lid is not latching into the closed position with the help of the trunk lid power closing...
- Height adjustment of electric steering column adjustment jammed in the top/bottom adjustment position...
- Customer states after a bus sleep the SiriusXM category changes from "My Favorites" to "All...
- Height adjustment of electric steering column adjustment jammed in the top/bottom adjustment position...
- The Apple Carplay interface cannot be controlled via the center console touchpad or the right-hand...
- Firewall grommet on assembly partition wall leaky.
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