2020 Mercedes-Benz C350 technical service bulletins
102 technical service bulletins and manufacturer communications cover the 2020 Mercedes-Benz C350.
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- 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
- Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end)
- There are several types of complaint about noises or poor windshield wiper wiping performance: A: Wiper...
- Headlamp, front fog lamp leaky or fogged
- The shift from 1st to 2nd gear may be uncomfortable under light load
- The following most common complaints may be observed: • Brief connectivity interruptions when using Apple...
- 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)
- Headlamp, front fog lamp leaky or fogged
- Headlamps leaking or fogged
- Electrical system
- During a phone call, the called party has difficulty understanding/cannot understand the driver, or...
- Paint damage on door paneling in area of door handle (see picture 1).
- 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)
- Washer fluid system leaks
- Check engine light on. One of the below fault codes is current in the engine control module (N3/10)
- Headlamp or front fog lamp leaky or fogged
- Rear lamps fogged up/not leaktight
- Only vehicles with a variable transfer case are affected
- 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...
- Tailgate opens unintentionally
- 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
- Electrical system
- Crease formation on genuine leather seat covers in vehicles with low mileage ⢠Objects left on the seats...
- Wheezing noises from the front shock absorbers when passing over surface undulations and rough road
- The "SOS nonfunctional" message appears sporadically in the instrument cluster of the vehicle
- In our continuing efforts to assure the proper performance of Mercedes-Benz products and to enhance the...
- Electrical system
- Visibility
- Loads induced at the steering wheel through pushing and pulling actions may
- Tailgate opens unintentionally
- 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...
- 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...
- Electrical system
- The result from the XENTRY battery test does not match the current state of the battery
- The touchpad dimming function does not work and the search lighting is either at maximum brightness or...
- 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"" "
- Eco start/stop nonfunctional due to 12V battery
- The Weather App will not populate local weather data based on current vehicle position.
- Fuel filler flap opens slowly/switch flashes/tank is bleeding instrument cluster warning
- Intermittently after bus sleep the lower control panel LCP and upper control panel UCP may be panel UCP...
- Coolant warning in instrument cluster
- Free browsing, Internet access via Wi-Fi hotspot and Internet radio nonfunctional"
- Touch pad: Search lighting does not dim or does not turn on.
- Remote start causing CEL and U012600.
- Update Coding of Powertrain Control Unit.
- For plug in hybrid and electric variants: Complaints about the electric range
- With engine M17x the ME Control Unit: "The Coolant Temperature is Below the Specified Temperature"
- Message (yellow) in IC "Active Brake Assist currently restricted, see operator's manual, Remedy:...
- Engine and engine cooling
- Engine switches off again when re-attempting Remote Start via Mercedes me App. This only occurs if the...
- Steering wheel heater and/or Distronic cannot be activated
- After ignition ON, the following message is shown on the instrument cluster
- Fault in 12 V interlock circuit
- When ordering the electrohydraulic controller unit (EHS) using the part number stated on the EHS, the...
- If the exhaust flap is operated or the drive program is changed within 10 seconds of the engine being...
- Air Conditioning Intermittently Does Not Cool
- NTG5.5
- Harsh engagement when changing gear range from P to D or R
- Shifting complaints and transmission fault codes in vehicles with transmission 725.0
- Check seal bellows at wheel carrier supporting joint of left and right rear axle, replace if necessary
- Steering wheel heater and/or Distronic function limited
- The operator's manual for the above vehicles does not comply with current specifications
- Message in the Instrument Cluster "Refill 1L Oil at the Next Fuel Stop"
- Headlamps fogged
- The mobile phone address book is not transferred completely to the multimedia system (COMAND or MBUX). In...
- The check engine indicator light in the instrument cluster may be illuminated with one of the following...
- Check engine indicator light active and fault code P261029/P02FF85/P02FF02 stored in engine control unit
- NTG5.5
- NTG5.5
- Information Label on Tire Sealant
- EASY-Pack liftgate does not fully open
- Disturbed Antenna Signal.
- Navigation system permanently displays "Activating".
- Map pocket on front seat backrest trim does not close.
- Ticking or pulsing noise from high-pressure pump and/or fuel injectors.
- Reset the customer-specific data and perform a software update of the AUDIO20 control unit.
- Intial startup not possible after replacement of transmisson 725.0 or of electrohydraulic controller unit.
- Headlamp fog.
- Traffic information service and posibly the voice control, nonfunctional after navigation software update.
- Cd/dvd
- High voltage battery warning message in instrument cluster.
- Gasket may settle causing a slight oil leak.
- Window lifter and outside mirror on passenger side malfunction after replacement of door control unit.
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