2015 Mercedes-Benz C400 technical service bulletins
116 technical service bulletins and manufacturer communications cover the 2015 Mercedes-Benz C400, including one warranty extension.
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- Visibility/wiper
- 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
- 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...
- A popup is seen on the HU with the message "data connection temporarily not available". Potentially...
- Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end)
- 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...
- There are several types of complaint about noises or poor windshield wiper wiping performance: A: Wiper...
- 1. General Diagnostic Tips 2. One or More PARK Sensor Activations 3. Red Ring Around Vehicle 4. "Active...
- Headlamp, front fog lamp leaky or fogged
- Headlamp, front fog lamp leaky or fogged
- Unknown or other
- 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
- The flap of the reversing camera opens and closes by itself during forward travel several times during the...
- 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)
- Transmission control unit Y3/8n4 (fully integrated transmission control unit (VGS)) not listed in quick...
- After a software update of HERMES communication module N112/9 has been performed on a gray import vehicle,...
- The result from the XENTRY battery test does not match the current state of the battery
- 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...
- The message "Device detected at diagnostics connection See Owner’s Manual" appears sporadically in the...
- 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...
- Noise from area of instrument panel Noise might occur in the following conditions
- Paint damage on door paneling in area of door handle (see picture 1).
- Fuel door may require several attempts to open
- Wind or airflow noises in the area of the doors
- 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)
- The flap of the reversing camera opens and closes by itself during forward travel
- After a control unit replacement of "N112/9
- Transmission control unit Y3/8n4 (fully integrated transmission control unit (VGS)) not listed in quick...
- Rear lamps fogged up/not leaktight
- Washer fluid system leaks
- Tension-releasing impact of the propeller shaft with the force-free in D "KID" function, after vehicle has...
- Headlamp or front fog lamp leaky or fogged
- Headlamps fogged or droplets forming
- Headlamps fogged or droplets forming
- Electrical system
- In our continuing efforts to ensure the proper performance and quality of your vehicle, we are writing to...
- Noticeable vibrations at the steering wheel: • At speeds between 40mph and 75mph • On straight stretches...
- As previously reported, to enhance the satisfaction of our customers, avoid further costs of litigation...
- 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...
- Loads induced at the steering wheel through pushing and pulling actions may
- Mercedes-Benz USA, LLC (MBUSA) has extended the warranty for the rear subframe on the vehicles listed...
- Staining on door trim strips and top and bottom trim elements on rear side windows
- Height adjustment of electric steering column adjustment jammed in the top/bottom adjustment position...
- Thumping noise on rear axle shock absorber on rough road
- Customer may have one or more of the following complaints: • Vehicle location is shown incorrectly in the...
- Engine and engine cooling
- The garage door hand transmitter cannot be initialized with the integrated garage door opener in the...
- The range of the integrated garage door opener (GTO) is too short
- MY15+ M278 and M157 Equipped Vehicles with Fault Code ""P023400 – Boost Pressure is Too High"" "
- After starting the engine, the instrument cluster shows the "EBD not available, diagnosis/test stand"...
- Replace 3rd brake lamp, remove soft top compartment cover to access.
- Electrical system: software
- NTG5.5
- If the customer brakes sharply from a speed of > 30mph, without ABS intervention, there is a single...
- To enhance the satisfaction of our customers, avoid further costs of litigation and return focus to its...
- Check coolant hose from expansion reservoir to cooler and replace if necessary
- High-voltage battery warning message" in instrument cluster
- Electric range is reduced after brief period
- NTG 5.5 head unit
- BR205 Facelift
- Seat belt extender toothed rack sluggish or makes noises
- Reversing camera nonfunctional on vehicles with code 805 YoM 14/1 (MY15)
- Oil in engine wiring harness
- Ticking or pulsing noise from high-pressure pump and/or fuel injectors.
- Intial startup not possible after replacement of transmisson 725.0 or of electrohydraulic controller unit.
- Gasket may settle causing a slight oil leak.
- Xentry (mercedes): vehicle shuts down at 5 mph but engine able to be restarted via eco start stop due to...
- Mercedes: determination of a leakage at turbocharger oil feed line, which fails to meet series production,...
- Mercedes: software update is required due to not meeting current production configuration for electronic...
- Xentry (daimler): after key cycle, vehicle in limp home mode, returns to normal operation due to being...
- Xentry (daimler): due to unfavorable tolerance of piston wrist pin, resulting in knocking,...
- Xentry (daimler): some vehicles experience an incomplete normalization of seat cushion and blocking...
- Mercedes: some vehicles do not have installed the headlamp horizontal adjustment sealing (SCREW) caps and...
- Xentry (daimler): stored in engine control unit are faults relating to throttle valve actuator and/or...
- Mercedes: information procedures on the repair and replacement of the instrument panel in dashboard of...
- Mercedes: on some vehicles left side of engine, the heat shield was mistakenly installed and causes...
- Xentry: C453: bulletin information involving driver not opening properly from the outside, when it is...
- Xentry: bulletin information regarding complaint of the esp warning light appearing while driving , light...
- Clunking noise from front axle suspension strut or rear axle shock absorber on short strokes of the damper
- Red display message in instrument cluster "Power Steering Malfunction
- Xentry (mercedes): after engine has started, several issues occurs, an acoustic warning sounds is heard,...
- Passenger side outside mirror glass adjusts itself at random at ignition on/off
- MY-All Model 205, Maintenance Interval
- In addition to the information published in the Introduction into Service Manual, note maintenance...
- Summary to be provided on a future date.
- Window lifter and outside mirror on passenger side malfunction after replacement of door control unit.
- The COMAND unit does not start or the COMAND display remains dark
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