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TSB List for the 2014 Mercedes-Benz C300

Technical Service Bulletins (TSBs) for the 2014 C300 are official communications between Mercedes-Benz & their dealerships that describe processes for troubleshooting or fixing certain common problems. All vehicle manufacturers are required by U.S. law to make their TSBs available to the public.

  • STEERING
  • STEERING:HYDRAULIC POWER ASSIST SYSTEM
  • STEERING:ELECTRIC POWER ASSIST SYSTEM
  • SUSPENSION
  • SUSPENSION:FRONT
  • SUSPENSION:FRONT:MACPHERSON STRUT
  • SUSPENSION:REAR:SHOCK ABSORBER
  • ENGINE (PWS)
  • ENGINE AND ENGINE COOLING
  • FUEL SYSTEM, GASOLINE
  • POWER TRAIN
  • ELECTRICAL SYSTEM
  • DIGITAL INSTRUMENT PANEL
  • ELECTRICAL SYSTEM: SOFTWARE
  • EXTERIOR LIGHTING
  • LIGHTING (PWS)
  • EXTERIOR LIGHTING:HEADLIGHTS
  • SEAT BELTS
  • SEAT BELTS:FRONT:RETRACTOR
  • SEAT BELTS:FRONT:BUCKLE ASSEMBLY
  • STRUCTURE
  • TIRES
  • TIRES:TEMPORARY/EMERGENCY SPARE TIRE
  • SEATS
  • EQUIPMENT
  • EQUIPMENT:ELECTRICAL
  • EQUIPMENT ADAPTIVE
  • STEERING

    • TSB #LI46-35P059241

      Date Announced:
      JUN 20, 2014
      NHTSA ID:
      #10056472

      XENTRY (MERCEDES): AFTER ENGINE HAS STARTED, SEVERAL ISSUES OCCURS, AN ACOUSTIC WARNING SOUNDS IS HEARD, THE INSTRUMENT CLUSTER DISPLAYS WARNING MESSAGE POWER STEERING MALFUNCTION, SERVICE REQUIRED. STEERING SYSTEM IS SLUGGISH. Read More »

    • TSB #LI46.15-P-058505

      Date Announced:
      FEB 25, 2014
      NHTSA ID:
      #10167002

      Creaking noise when making vertical or longitudinal adjustment to electrical steering column Read More »

    • TSB #LI46.35-P-058063

      Date Announced:
      FEB 18, 2014
      NHTSA ID:
      #10167003

      Fault code U41600 logged in 'ES' (electric steering) control unit after software update or steering gear replacement. Note: Fault code U41600 means: Implausible data were received from the control unit "Traction system". Read More »

    • TSB #LI33.30-P-056665

      Date Announced:
      JUL 18, 2013
      NHTSA ID:
      #10167550

      Single, throttle lift-off, clunking noise from the side shaft when starting off (audible at the wheel). The clunk is heard once when changing from forward to reverse (and vice versa). Read More »

    STEERING:HYDRAULIC POWER ASSIST SYSTEM

    • TSB #LI46.35-P-059989

      Date Announced:
      OCT 10, 2014
      NHTSA ID:
      #10135621

      Red display message in instrument cluster "Power Steering Malfunction - See Owner's Manual" Read More »

    STEERING:ELECTRIC POWER ASSIST SYSTEM

    • TSB #LI46.35-P-059989

      Date Announced:
      OCT 16, 2014
      NHTSA ID:
      #10135638

      Red display message in instrument cluster "Power Steering Malfunction - See Owner's Manual" Read More »

    SUSPENSION

    SUSPENSION:FRONT

    • TSB #LI32.25-P-061137

      Date Announced:
      MAR 24, 2015
      NHTSA ID:
      #10135599

      Clunking noise from front axle suspension strut or rear axle shock absorber on short strokes of the damper Read More »

    SUSPENSION:FRONT:MACPHERSON STRUT

    • TSB #LI32.25-P-061137

      Date Announced:
      MAR 24, 2015
      NHTSA ID:
      #10135599

      Clunking noise from front axle suspension strut or rear axle shock absorber on short strokes of the damper Read More »

    SUSPENSION:REAR:SHOCK ABSORBER

    • TSB #LI32.25-P-061137

      Date Announced:
      MAR 24, 2015
      NHTSA ID:
      #10135599

      Clunking noise from front axle suspension strut or rear axle shock absorber on short strokes of the damper Read More »

    ENGINE (PWS)

    • TSB #SC-2019040001

      Date Announced:
      APR 11, 2019
      NHTSA ID:
      #10160738

      Update engine electronics (ME-SFI) control unit software Read More »

    • TSB #LI05 20-P-067123

      Date Announced:
      OCT 09, 2017
      NHTSA ID:
      #10158329

      Oil in engine wiring harness Read More »

    • TSB #LI07-70P061851

      Date Announced:
      JUL 27, 2015
      NHTSA ID:
      #10058561

      XENTRY (MERCEDES): VEHICLE SHUTS DOWN AT 5 MPH BUT ENGINE ABLE TO BE RESTARTED VIA ECO START STOP DUE TO MISMATCHED LEVELS OF SOFTWARE. MODEL 2014-15 217, 222. *PE Read More »

    • TSB #LI03-10P060916

      Date Announced:
      JUL 01, 2015
      NHTSA ID:
      #10058545

      XENTRY (DAIMLER): DUE TO UNFAVORABLE TOLERANCE OF PISTON WRIST PIN, RESULTING IN KNOCKING, CLATTERING/RATTLING NOISES, CAUSING AN ENLARGE END FLOAT CONNECTING ROD IN PISTON, FROM CRANK ASSEMBLY OF ENGINE WHEN COLD. Read More »

    • TSB #LI54-18-P-057927

      Date Announced:
      JUN 04, 2015
      NHTSA ID:
      #10058548

      XENTRY (DAIMLER): STORED IN ENGINE CONTROL UNIT ARE FAULTS RELATING TO THROTTLE VALVE ACTUATOR AND/OR OXYGEN SENSOR DUE TO OCCASIONAL TRANSITION RESISTANCE AT CONTACTS, CAUSING ENGINE DIAGNOSIS WARNING LAMP TO BE INACTIVE. MODEL ALL. Read More »

    • TSB #P-B-54.10/265

      Date Announced:
      AUG 11, 2014
      NHTSA ID:
      #10059775

      SUMMARY TO BE PROVIDED ON A FUTURE DATE. Read More »

    ENGINE AND ENGINE COOLING

    • TSB #P-SC-2019050006

      Date Announced:
      MAY 28, 2019
      NHTSA ID:
      #10162206

      Check coolant hose from expansion reservoir to cooler and replace if necessary Read More »

    • TSB #LI07 70-P-066276

      Date Announced:
      MAR 12, 2018
      NHTSA ID:
      #10144075

      Check Engine Light is on with DTC P030185/ P030685 for misfire cylinder 1 and 6. Read More »

    • TSB #LI14.20-P-052079

      Date Announced:
      FEB 06, 2014
      NHTSA ID:
      #10166978

      Engine diagnosis warning lamp lights up - Fault code entry (FC) 14A600 or 14A700 Read More »

    • TSB #LI47.40-P-053871

      Date Announced:
      JUL 10, 2013
      NHTSA ID:
      #10167554

      Engine diagnosis warning lamp activated. Fault code P045600 "Very fine leak" or P044200 "Fine leak" stored in engine control unit. Read More »

    FUEL SYSTEM, GASOLINE

    POWER TRAIN

    • TSB #LI35 30-P-058566

      Date Announced:
      AUG 05, 2019
      NHTSA ID:
      #10164811

      Throttle lift-off clunking noises at drive shafts of rear axle Read More »

    • TSB #LI54.15-P-057373

      Date Announced:
      FEB 28, 2014
      NHTSA ID:
      #10167510

      The vehicle cannot be started The vehicle may start by itself shortly after the startup attempt with a delay, as the relay can be late closing. and/or The gear selection is displayed, but no gear is engaged. Read More »

    • TSB #LI35.30-P-058566

      Date Announced:
      FEB 25, 2014
      NHTSA ID:
      #10166994

      Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end). Heard once when changing from forward to reverse (and vice versa) Read More »

    • TSB #LI27.20-P-055758

      Date Announced:
      JUL 30, 2013
      NHTSA ID:
      #10167546

      FC 2783 (Friction power of torque converter lockup clutch is too high) or FC 0741 (Actuation of torque converter lockup clutch not possible) stored in transmission control unit. Read More »

    ELECTRICAL SYSTEM

    • TSB #LI54.15-P-057373

      Date Announced:
      FEB 28, 2014
      NHTSA ID:
      #10167510

      The vehicle cannot be started The vehicle may start by itself shortly after the startup attempt with a delay, as the relay can be late closing. and/or The gear selection is displayed, but no gear is engaged. Read More »

    • TSB #LI49.10-P-058243

      Date Announced:
      FEB 25, 2014
      NHTSA ID:
      #10167005

      Engine diagnosis warning lamp is active or message "Starts remaining xxx" in instrument cluster. Read More »

    • TSB #LI49.20-P-056353

      Date Announced:
      FEB 25, 2014
      NHTSA ID:
      #10167007

      Engine diagnosis warning lamp active. Fault code 20BE1B and/or 20BD1B (The heating element of the AdBlue tank has a malfunction) is logged in the Blue-Tec control unit. Read More »

    • TSB #LI54.10-P-054089

      Date Announced:
      FEB 25, 2014
      NHTSA ID:
      #10167009

      Battery discharged, vehicle does not start. Read More »

    • TSB #LI49.20-P-056353

      Date Announced:
      FEB 12, 2014
      NHTSA ID:
      #10167006

      Engine diagnosis warning lamp active. Fault code 20BE1B and/or 20BD1B (The heating element of the AdBlue tank has a malfunction) is logged in the Blue-Tec control unit. Read More »

    • TSB #LI54.25-P-056472

      Date Announced:
      FEB 10, 2014
      NHTSA ID:
      #10167015

      The key is not recognized in the electronic ignition switch, the vehicle cannot be started and/or the automatic transmission may perform an "Automatic P function" at speeds below 6 km/h. Read More »

    • TSB #S-SC- 2013090008

      Date Announced:
      FEB 01, 2014
      NHTSA ID:
      #10167040

      This Service Campaign has been initiated because Daimler AG (DAG), the manufacturer of Mercedes-Benz vehicles, has determined that the mbrace software does not correspond to current production configuration. Read More »

    • TSB #LI54.65-P-058105

      Date Announced:
      DEC 12, 2013
      NHTSA ID:
      #10167016

      The Parktronic system switches to malfunction. The driver notices a fault message (4 red LEDs and 2 sec continuous signal). Read More »

    • TSB #LI82.95-P-054406

      Date Announced:
      AUG 28, 2013
      NHTSA ID:
      #10062335

      SUMMARY TO BE PROVIDED ON A FUTURE DATE. Read More »

    • TSB #LI82.95-P-056655

      Date Announced:
      JUL 12, 2013
      NHTSA ID:
      #10167564

      Customer experiences low battery conditions, resulting in jump starts, and eventually requiring battery replacement. Read More »

    • TSB #LI82.85-P-055695

      Date Announced:
      JUL 08, 2013
      NHTSA ID:
      #10167563

      The COMAND unit does not start or the COMAND display remains dark. The COMAND unit cannot be operated. Note: The problem disappears after a lengthy idle period (>6h) or after interrupting the power supply (circuit 30). Read More »

    • TSB #LI46.35-P-055485

      Date Announced:
      JUN 28, 2013
      NHTSA ID:
      #10167552

      Engine does not start, or various fault messages in instrument cluster immediately after engine start and servo assistance is reduced. Read More »

    DIGITAL INSTRUMENT PANEL

    • TSB #LI54.18-P-062956

      Date Announced:
      JUN 28, 2016
      NHTSA ID:
      #10136089

      ESP, BAS, PRE-SAFE - Fault message in instrument cluster Read More »

    • TSB #LI46-35P059241

      Date Announced:
      JUN 20, 2014
      NHTSA ID:
      #10056472

      XENTRY (MERCEDES): AFTER ENGINE HAS STARTED, SEVERAL ISSUES OCCURS, AN ACOUSTIC WARNING SOUNDS IS HEARD, THE INSTRUMENT CLUSTER DISPLAYS WARNING MESSAGE POWER STEERING MALFUNCTION, SERVICE REQUIRED. STEERING SYSTEM IS SLUGGISH. Read More »

    ELECTRICAL SYSTEM: SOFTWARE

    • TSB #SC-2019040001

      Date Announced:
      APR 11, 2019
      NHTSA ID:
      #10160738

      Update engine electronics (ME-SFI) control unit software Read More »

    • TSB #LI07-70P061851

      Date Announced:
      JUL 27, 2015
      NHTSA ID:
      #10058561

      XENTRY (MERCEDES): VEHICLE SHUTS DOWN AT 5 MPH BUT ENGINE ABLE TO BE RESTARTED VIA ECO START STOP DUE TO MISMATCHED LEVELS OF SOFTWARE. MODEL 2014-15 217, 222. *PE Read More »

    EXTERIOR LIGHTING

    LIGHTING (PWS)

    • TSB #LI82.10-P-064766

      Date Announced:
      JUN 30, 2020
      NHTSA ID:
      #10177571

      Lamp unit fogged or droplets forming. Due to the vent openings, the lamp unit is an "open system". This means that acidic gases, moisture, dirt and exhaust gases can penetrate it. This can result in deposits on the diffuser and lens. Read More »

    EXTERIOR LIGHTING:HEADLIGHTS

    • TSB #P-SC-2014060004

      Date Announced:
      JUL 01, 2014
      NHTSA ID:
      #10057069

      MERCEDES BENZ: MODEL 216 THE MANUFACTURER OF MERCEDES BENZ INITIATED THIS SERVICE CAMPAIGN WHICH HAS DETERMINED THE HEAD LAMP CONTROL MODULE CODE & SPOTLIGHT FUNCTION MAY NOT BE AVAILABLE. *LJ Read More »

    SEAT BELTS

    SEAT BELTS:FRONT:RETRACTOR

    • TSB #LI91-00-P-061754

      Date Announced:
      JUN 30, 2015
      NHTSA ID:
      #10058547

      XENTRY (DAIMLER): SOME VEHICLES EXPERIENCE AN INCOMPLETE NORMALIZATION OF SEAT CUSHION AND BLOCKING BETWEEN SEAT BELT BUCKLE AND CONTROL UNIT DETECTS BLOCKAGE AND ABORTS NORMALIZATION SEQUENCE. MODEL 222 (CODE 232 + 224 +305). Read More »

    SEAT BELTS:FRONT:BUCKLE ASSEMBLY

    • TSB #LI91-00-P-061754

      Date Announced:
      JUN 30, 2015
      NHTSA ID:
      #10058547

      XENTRY (DAIMLER): SOME VEHICLES EXPERIENCE AN INCOMPLETE NORMALIZATION OF SEAT CUSHION AND BLOCKING BETWEEN SEAT BELT BUCKLE AND CONTROL UNIT DETECTS BLOCKAGE AND ABORTS NORMALIZATION SEQUENCE. MODEL 222 (CODE 232 + 224 +305). Read More »

    STRUCTURE

    • TSB #P-SC-2014020003

      Date Announced:
      FEB 01, 2014
      NHTSA ID:
      #10167038

      This Service Campaign has been initiated because Daimler AG (DAG), manufacturer of Mercedes-Benz vehicles, has determined that the seam seal at the spare tire well may not be to specification. Read More »

    TIRES

    • TSB #C1A-130501

      Date Announced:
      JUL 01, 2013
      NHTSA ID:
      #10167536

      Model X204 (GLK 250 BT) with AMG Styling Package 321. Model Year 2013 Install Tire Fit Kit, Replace Monroney Label Read More »

    TIRES:TEMPORARY/EMERGENCY SPARE TIRE

    • TSB #P-SC-2014020003

      Date Announced:
      FEB 01, 2014
      NHTSA ID:
      #10167038

      This Service Campaign has been initiated because Daimler AG (DAG), manufacturer of Mercedes-Benz vehicles, has determined that the seam seal at the spare tire well may not be to specification. Read More »

    SEATS

    • TSB #LI91-00-P-061754

      Date Announced:
      JUN 30, 2015
      NHTSA ID:
      #10058547

      XENTRY (DAIMLER): SOME VEHICLES EXPERIENCE AN INCOMPLETE NORMALIZATION OF SEAT CUSHION AND BLOCKING BETWEEN SEAT BELT BUCKLE AND CONTROL UNIT DETECTS BLOCKAGE AND ABORTS NORMALIZATION SEQUENCE. MODEL 222 (CODE 232 + 224 +305). Read More »

    • TSB #LI91.10-P-048411

      Date Announced:
      JUL 12, 2014
      NHTSA ID:
      #10166080

      The pneumatic 4-way lumbar support fails. Lumbar support pockets cannot be filled up or they drain. Read More »

    • TSB #LI91.10-P-059387

      Date Announced:
      JUL 12, 2014
      NHTSA ID:
      #10166093

      Noises from flat spring core in backrest Read More »

    • TSB #LI91.25-P-059380

      Date Announced:
      JUL 10, 2014
      NHTSA ID:
      #10166099

      Pneumatic comfort systems with insufficient performance, entirely inoperative or leaky. Read More »

    EQUIPMENT

    • TSB #NCU - HVAC Warra

      Date Announced:
      MAY 21, 2020
      NHTSA ID:
      #10176670

      To enhance the satisfaction of our customers, avoid further costs of litigation and return focus to its core businesses, Mercedes-Benz USA, LLC (MBUSA) has entered into a settlement regarding claims relating to alleged mold and mildew ... Read More »

    • TSB #P-B-54.10/265

      Date Announced:
      AUG 11, 2014
      NHTSA ID:
      #10059775

      SUMMARY TO BE PROVIDED ON A FUTURE DATE. Read More »

    • TSB #P-B-82.85-703

      Date Announced:
      MAR 10, 2014
      NHTSA ID:
      #10167532

      A production fault means that the telematics DVD A 166 827 14 00 cannot be used. Because of this the previous telematics DVDs A 204 827 03 65 and A 204 827 10 65 must continue to be used for control unit programming. Read More »

    • TSB #LI82.85-P-058582

      Date Announced:
      MAR 03, 2014
      NHTSA ID:
      #10167525

      Apple products (iPhone or iPod) are not charged via the serial USB interface of the COMAND Online control unit (A40/3) in the stowage compartment of the center console. Read More »

    EQUIPMENT:ELECTRICAL

    • TSB #LI82 85-P-068646

      Date Announced:
      AUG 21, 2018
      NHTSA ID:
      #10151999

      MB App iHeart Radio is no longer available after a head unit update Read More »

    • TSB #C1A140101

      Date Announced:
      FEB 11, 2014
      NHTSA ID:
      #10166975

      This Customer 1 Action has been initiated because certain mbrace subscribers were recently contacted by mbrace informing them that they need to have an i-button call performed to ensure their mbrace device has registered with the ... Read More »

    EQUIPMENT ADAPTIVE

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