Technical Service Bulletins (TSBs) for the 2013 S550 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

    • 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 #LI46.10-P-057961

      Date Announced:
      FEB 18, 2014
      NHTSA ID:
      #10167000

      Surface damage on steering wheel trim Read More »

    SUSPENSION

    • TSB #LI32.22-P-058342

      Date Announced:
      JAN 31, 2014
      NHTSA ID:
      #10166991

      Creaking noises from the area of the air suspension strut on the front axle when driving over bumps with the steering turned. Topic only reported from outer wheel until now. Read More »

    ENGINE (PWS)

    ENGINE AND ENGINE COOLING

    • TSB #ELW - M278 Cat

      Date Announced:
      JUL 27, 2023
      NHTSA ID:
      #10240203

      This NCU replaces the prior NCU issued on May 11, 2023, and clarifies replacement part information. In our continuing efforts to assure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, ... Read More »

    • TSB #ELW-M278Catalyst

      Date Announced:
      MAY 11, 2023
      NHTSA ID:
      #10237240

      This extended warranty applies to the following condition that may necessitate the repair or replacement of the catalytic converter system and is related to: a?? A check engine Malfunction Indicator Lamp (a??MILa??) may illuminate due to ... Read More »

    • TSB #CL-ELWExhaustVal

      Date Announced:
      MAR 30, 2023
      NHTSA ID:
      #10233794

      Why the warranty extension? On certain Model Year 2011-2016 CL/CLS/S/E/ML/SL/G/GL/GLE-Class vehicles with V8 engines, the exhaust valve assembly might not work properly and result in an engine misfire and potential illumination of the ... Read More »

    • TSB #ELW-ExhaustValve

      Date Announced:
      MAR 10, 2023
      NHTSA ID:
      #10233778

      In our continuing efforts to assure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz USA, LLC (a??MBUSAa??) is extending the warranty coverage on the exhaust valve system in ... Read More »

    • TSB #LI05.10-P-056435

      Date Announced:
      MAR 21, 2014
      NHTSA ID:
      #10167488

      Engine rattling noise after engine start for several seconds 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 »

    ENGINE AND ENGINE COOLING:ENGINE

    • TSB #SC-2013010001

      Date Announced:
      FEB 01, 2013
      NHTSA ID:
      #10051992

      MERCEDES: DUE TO LEFT AND RIGHT SECONDARY CHAIN TENSIONERS, OF THE CHECK VALVE, BEING INSTALLED AND PRESSED DEEPLY INTO CYLINDER HEADS, THE OIL SUPPLY CAN NOT BE ENSURED FOR CYLINDER HEAD, AND CHECK VALVE, OF LEFT AND RIGHT SECONDARY ... Read More »

    • TSB #SC-2013010001

      Date Announced:
      FEB 01, 2013
      NHTSA ID:
      #10051992

      MERCEDES: DUE TO LEFT AND RIGHT SECONDARY CHAIN TENSIONERS, OF THE CHECK VALVE, BEING INSTALLED AND PRESSED DEEPLY INTO CYLINDER HEADS, THE OIL SUPPLY CAN NOT BE ENSURED FOR CYLINDER HEAD, AND CHECK VALVE, OF LEFT AND RIGHT SECONDARY ... Read More »

    ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION:SEALS/GASKETS

    ENGINE AND ENGINE COOLING:COOLING SYSTEM

    • TSB #SC-2013010001

      Date Announced:
      FEB 01, 2013
      NHTSA ID:
      #10051992

      MERCEDES: DUE TO LEFT AND RIGHT SECONDARY CHAIN TENSIONERS, OF THE CHECK VALVE, BEING INSTALLED AND PRESSED DEEPLY INTO CYLINDER HEADS, THE OIL SUPPLY CAN NOT BE ENSURED FOR CYLINDER HEAD, AND CHECK VALVE, OF LEFT AND RIGHT SECONDARY ... Read More »

    • TSB #SC-2013010001

      Date Announced:
      FEB 01, 2013
      NHTSA ID:
      #10051992

      MERCEDES: DUE TO LEFT AND RIGHT SECONDARY CHAIN TENSIONERS, OF THE CHECK VALVE, BEING INSTALLED AND PRESSED DEEPLY INTO CYLINDER HEADS, THE OIL SUPPLY CAN NOT BE ENSURED FOR CYLINDER HEAD, AND CHECK VALVE, OF LEFT AND RIGHT SECONDARY ... Read More »

    ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY

    • TSB #SC-2013010001

      Date Announced:
      FEB 01, 2013
      NHTSA ID:
      #10051992

      MERCEDES: DUE TO LEFT AND RIGHT SECONDARY CHAIN TENSIONERS, OF THE CHECK VALVE, BEING INSTALLED AND PRESSED DEEPLY INTO CYLINDER HEADS, THE OIL SUPPLY CAN NOT BE ENSURED FOR CYLINDER HEAD, AND CHECK VALVE, OF LEFT AND RIGHT SECONDARY ... Read More »

    • TSB #SC-2013010001

      Date Announced:
      FEB 01, 2013
      NHTSA ID:
      #10051992

      MERCEDES: DUE TO LEFT AND RIGHT SECONDARY CHAIN TENSIONERS, OF THE CHECK VALVE, BEING INSTALLED AND PRESSED DEEPLY INTO CYLINDER HEADS, THE OIL SUPPLY CAN NOT BE ENSURED FOR CYLINDER HEAD, AND CHECK VALVE, OF LEFT AND RIGHT SECONDARY ... Read More »

    ENGINE AND ENGINE COOLING:EXHAUST SYSTEM

    • TSB #ELW - M278 Cat

      Date Announced:
      JUL 27, 2023
      NHTSA ID:
      #10240203

      This NCU replaces the prior NCU issued on May 11, 2023, and clarifies replacement part information. In our continuing efforts to assure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, ... Read More »

    ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR

    • TSB #ELW-M278Catalyst

      Date Announced:
      MAY 11, 2023
      NHTSA ID:
      #10237240

      This extended warranty applies to the following condition that may necessitate the repair or replacement of the catalytic converter system and is related to: a?? A check engine Malfunction Indicator Lamp (a??MILa??) may illuminate due to ... Read More »

    FUEL SYSTEM, GASOLINE

    • TSB #LI01.30-P-058630

      Date Announced:
      MAR 21, 2014
      NHTSA ID:
      #10167487

      Minor leaks at the oil duct of the left or right cylinder head of engines 157, 276 and 278. 1. Left cylinder head: Oil passage plug hole on left beside mechanical vacuum pump. 2. Read More »

    POWER TRAIN

    • TSB #LI27.50-P-071658

      Date Announced:
      SEP 30, 2020
      NHTSA ID:
      #10181124

      Harsh engagement when changing gear range from P to D or R Read More »

    • TSB #LI27.60-P-071237

      Date Announced:
      MAY 01, 2020
      NHTSA ID:
      #10176661

      5 to 4 coasting downshift - shift quality concern with cold trans- mission oil on MODEL 217 or 222 in combination with ENGI- NE 278 and TRANSMISSION 722.9 without code 835/498 Read More »

    ELECTRICAL SYSTEM

    • TSB #LI54.30-P-072145

      Date Announced:
      DEC 10, 2020
      NHTSA ID:
      #10186141

      NTG5.5: Incorrect time shown on instrument cluster, COMAND display, and analog clock Read More »

    • TSB #LI80.20-P-059363

      Date Announced:
      JUL 12, 2014
      NHTSA ID:
      #10165854

      The trunk lid sometimes does not open completely and does not close (completely). This complaint is accompanied by the following symptoms: - Illumination of the trunk lid control button (S62/26) fails. Read More »

    • TSB #LI91.25-P-048132

      Date Announced:
      JUL 10, 2014
      NHTSA ID:
      #10166098

      Multicontour system fails during air release procedure. The system becomes operational again after an ignition change. Fault code 9E8900 is stored. Read More »

    • TSB #LI01.30-P-058630

      Date Announced:
      MAR 21, 2014
      NHTSA ID:
      #10167487

      Minor leaks at the oil duct of the left or right cylinder head of engines 157, 276 and 278. 1. Left cylinder head: Oil passage plug hole on left beside mechanical vacuum pump. 2. 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 #P-B-54.10-225d

      Date Announced:
      JUL 03, 2013
      NHTSA ID:
      #10167572

      If it is necessary to replace an HV battery, the return will only be accepted with the filled-out ?Analysis Sheet for Transportability of High-Voltage Batteries Form? accompanied by: , the removed part, the quick test printout, the BMS ... Read More »

    ELECTRICAL SYSTEM:WIRING

    • TSB #LI54-18P059464

      Date Announced:
      JUL 22, 2014
      NHTSA ID:
      #10056474

      XENTRY (MERCEDES): DUE TO A MALFUNCTION THE ESP, BAS, PRESAFE, HOLD FUNCTION, HILL-START ASSIST AND ESP TRAILER STABILIZATION IS UNAVAILABLE AND ADAPTIVE BRAKE LIGHTS, ADAPTIVE BRAKE ASSIST AND/OR ATTENTION ASSIST HAS FAILED OR IS ... Read More »

    ELECTRICAL SYSTEM:WIRING:FUSES AND CIRCUIT BREAKERS

    • TSB #LI54-15-P057373

      Date Announced:
      FEB 28, 2014
      NHTSA ID:
      #10055333

      XENTRY (MERCEDES): THE FUSE AND RELAY BOXES (SRB) IN ENGINE COMPARTMENT OR REAR COMPARTMENT HAS A MALFUNCTION AND DISRUPTIONS TO COMMUNICATION PATHS CAUSING A NO START IN VEHICLE. Read More »

    • TSB #LI54-15-P057373

      Date Announced:
      FEB 28, 2014
      NHTSA ID:
      #10055333

      XENTRY (MERCEDES): THE FUSE AND RELAY BOXES (SRB) IN ENGINE COMPARTMENT OR REAR COMPARTMENT HAS A MALFUNCTION AND DISRUPTIONS TO COMMUNICATION PATHS CAUSING A NO START IN VEHICLE. Read More »

    ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:CONTROL MODULE

    ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

    • TSB #LI54.30-P-072145

      Date Announced:
      DEC 10, 2020
      NHTSA ID:
      #10186141

      NTG5.5: Incorrect time shown on instrument cluster, COMAND display, and analog clock Read More »

    • TSB #LI68.20-P-059330

      Date Announced:
      JUL 03, 2014
      NHTSA ID:
      #10165853

      When on rough roads and with side loads applied to the center console (leg support) cracking noise may occur in the transition between the instrument panel and the center console. 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 #Launch NCU - 202

      Date Announced:
      JAN 07, 2021
      NHTSA ID:
      #10187793

      Mercedes-Benz AG (?MBAG?), the manufacturer of Mercedes-Benz, has determined that on certain Model Year (?MY?) 2013-2017 B-Class, C-Class, CLA-Class, CLS-Class, E-Class, G-Class, GL-Class, GLA-Class, GLC-Class, GLE-Class, GLK-Class, ... Read More »

    • TSB #SC-2019040001

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

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

    • TSB #SCB-2013090008

      Date Announced:
      FEB 01, 2014
      NHTSA ID:
      #10055385

      MERCEDES: SOFTWARE FAILS TO CORRESPOND, ON SOME VEHICLES, TO CURRENT PRODUCTION CONFIGURATION. MODEL 2013 166 (ML), X166 (GL), 204 (C), X204 (GLK), 207 (E-COUPE), 212 (E), 218 (CLS), 231 (SL). Read More »

    • TSB #LI8270P055572

      Date Announced:
      AUG 05, 2013
      NHTSA ID:
      #10205233

      Mobile phone cotacts are not transferred completely. Read More »

    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

    EXTERIOR LIGHTING:HEADLIGHTS:CONCEALMENT DEVICES

    • 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 »

    SEAT BELTS

    LATCHES/LOCKS/LINKAGES:TRUNK LID:LOCK

    • TSB #LI80.20-P-059363

      Date Announced:
      JUL 12, 2014
      NHTSA ID:
      #10165854

      The trunk lid sometimes does not open completely and does not close (completely). This complaint is accompanied by the following symptoms: - Illumination of the trunk lid control button (S62/26) fails. Read More »

    SEATS

    • TSB #LI91.18-P-077075

      Date Announced:
      DEC 04, 2023
      NHTSA ID:
      #10248162

      Crease formation on genuine leather seat covers in vehicles with low mileage ??A?A? Objects left on the seats for extended periods of time (pressure marks). ??A?A? Objects wedged between the seat backrest and seat cushion (e.g. Read More »

    • TSB #LI91.10-P-059389

      Date Announced:
      JUL 12, 2014
      NHTSA ID:
      #10166094

      Noises from lock of valuables/stowage compartment or from gap cover between seat and center tunnel. Read More »

    • TSB #LI91.25-P-059392

      Date Announced:
      JUL 12, 2014
      NHTSA ID:
      #10166102

      No inflation of one or more air cushions on the massage/multicontour/dynamic seat modules (driver, front passenger and rear) Bubble formation in one or more seats with massage/multicontour/dynamic seat modules (driver, front passenger ... Read More »

    • TSB #LI91.30-P-048290

      Date Announced:
      JUL 12, 2014
      NHTSA ID:
      #10166106

      Grinding noises can occur in the backrest on active multicontour seats with the backrest under load and the seat ventilation switched on Read More »

    • TSB #LI91.25-P-059382

      Date Announced:
      JUL 11, 2014
      NHTSA ID:
      #10166100

      Dynamic seat (DS) pneumatic pump / multicontour seat pneumatic pump makes noises. Read More »

    • TSB #LI91.10-P-047382

      Date Announced:
      JUL 10, 2014
      NHTSA ID:
      #10166079

      Creaking noises can occur when the side bolster bladders are inflated and deflated Read More »

    • TSB #LI91.10-P-048504

      Date Announced:
      JUL 10, 2014
      NHTSA ID:
      #10166086

      Squeaking/creaking noises from area of seat adjuster 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 »

    INTERIOR LIGHTING

    EQUIPMENT

    • 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 »

    • 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 #GI88.40-P-057430

      Date Announced:
      FEB 03, 2014
      NHTSA ID:
      #10166976

      Message in instrument cluster "DISTRONIC PLUSCurrently Unavailable - See Owner's Manual" 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 #LI80.61-P-061174

      Date Announced:
      MAR 31, 2015
      NHTSA ID:
      #10135604

      Vehicle cannot be opened via Keyless-Go and radio remote control Read More »

    • TSB #LI82.70-P-060004

      Date Announced:
      OCT 14, 2014
      NHTSA ID:
      #10135628

      iPhone mobile phone: Various complaints after software update to iOS8 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:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM)

    • TSB #Launch NCU - 202

      Date Announced:
      JAN 07, 2021
      NHTSA ID:
      #10187793

      Mercedes-Benz AG (?MBAG?), the manufacturer of Mercedes-Benz, has determined that on certain Model Year (?MY?) 2013-2017 B-Class, C-Class, CLA-Class, CLS-Class, E-Class, G-Class, GL-Class, GLA-Class, GLC-Class, GLE-Class, GLK-Class, ... Read More »

    UNKNOWN OR OTHER