C 240 Wagon W203 V6-2.6L M112 (2003): Engine, Cooling and Exhaust

Also for this vehicle: C 230 (202.023) L4-2.3L (111.974) (1998), C 230 (203.040) L4-1.8L SC (271.948) (2005), C 230 (203.052) V6-2.5L (272.920) (2007), C 230 CL (203.740) L4-1.8L SC (271.948) (2003), C 230K (202.024) L4-2.3L SC (111.975) (2001), C 240 4MATIC Sedan (203.081) V6-2.6L (112.916) (2005), C 240 4MATIC Wagon (203.281) V6-2.6L (112.916) (2003), C 240 Sedan (203.061) V6-2.6L (112.912) (2002), C 280 (202.028) L6-2.8L (104.941) (1994), C 280 (202.029) V6-2.8L (112.920) (1999), C 280 (203.054) V6-3.0L (272.940) (2006), C 280 4MATIC (203.092) V6-3.0L (272.941) (2007), C 300 (204.054) V6-3.0L (272.947) (2008), C 320 4MATIC Sedan (203.084) V6-3.2L (112.953) (2003), C 320 CL (203.764) V6-3.2L (112.946) (2004), C 320 Sedan (203.064) V6-3.2L (112.946) (2001), C 320 Wagon (203.264) V6-3.2L (112.946) (2004), C 350 (203.056) V6-3.5L (272.960) (2006), C 350 (204.056) V6-3.5L (272.961) (2008), C 350 4MATIC (203.087) V6-3.5L (272.970) (2007), C 43 AMG (202.033) V8-4.3L (113.944) (1998), C 55 AMG (203.076) V8-5.5L (113.988) (2006), CLS 55 AMG (219.376) V8-5.5L SC (113.990) (2006), CLS 550 (219.372) V8-5.5L (273.960) (2007).

Diagnostics Maintenance Engine Transmission Brakes Electrical Steering & suspension Heating & A/C Body & interior

Choose Sections to see everything in a chapter, or a chapter title to start at its first page.

01Relays and Modules Relays and Modules: Sections
02Sensors and Switches Sensors and Switches: Sections
03Maintenance Maintenance: Sections
04Engine, Cooling and Exhaust Engine, Cooling and Exhaust: Sections
- Engine654 pages
  - Access Cover, Engine › Component Information › Service and Repair2
  - Actuators and Solenoids - Engine › Variable Valve Timing Solenoid › Component Information › Locations › Adjustable Camshaft Timing Solenoid2 3 4 5 6 7 8 9
  - Compression Check › System Information18 pages
    Specifications › Low Compression2 3 4 5 6 7 8 9 10
    System Diagnosis › AR01.00-P-1200B Testing Compression Pressure2 3 4 5 6 7 8
  - Camshaft, Lifters and Push Rods32 pages
    Camshaft Bearing › Component Information5 pages
    Specifications2
    Service and Repair › AR05.20-P-7103AU Remove/Install Camshaft Bearing Cap2 3
    Camshaft Gear/Sprocket › Component Information › Specifications2
    Camshaft, Engine › Component Information17 pages
    Specifications › Position Sensor2 3 4 5 6 7 8
    Service and Repair › Procedures2 3 4 5 6 7
    Tools and Equipment › Electrical / Mechanical Repair2
    Lifter / Lash Adjuster, Valve › Component Information › Service and Repair
    Rocker Arm Assembly › Component Information7 pages
    Service and Repair › AR05.20-P-2350AU Remove/Install Rocker Arm Shaft2 3 4 5
    Tools and Equipment › Special Tools2
  - Cylinder Block Assembly132 pages
    Balance Shaft › Component Information › Specifications › Balancing Shaft2
    Connecting Rod Bearing › Component Information8 pages
    Specifications2
    Service and Repair › Procedures2 3 4 5 6
    Connecting Rod, Engine › Component Information21 pages
    Specifications › Torque2 3 4 5 6 7 8 9 10 11 12 13 14 15
    Testing and Inspection › AR03.10-P-6111-01BV Inspect Conrod Bolts2
    Service and Repair › AR03.10-P-6111-02BV Tightening Conrod Bolts2 3 4
    Crankshaft Main Bearing › Component Information33 pages
    Specifications › BE03.20-P-1000-04E Inspection Data of Crankshaft Bearing Clearance2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
    Service and Repair › AR03.20-P-4291-03AV Determine Crankshaft Bearing Axial Play2 3 4 5 6 7 8 9 10
    Crankshaft Seal Retainer › Component Information6 pages
    Specifications2
    Service and Repair › Procedures2 3 4
    Crankshaft, Engine › Component Information22 pages
    Specifications › Connecting Rod2 3 4 5 6 7 8 9 10 11 12 13 14 15
    Service and Repair › AR03.20-P-4351AV Remove/Install Crankshaft2 3 4 5 6 7
    Cylinder Liner › Component Information › Specifications2 3 4 5 6 7
    Engine Block Heater › Component Information › Specifications
    Harmonic Balancer - Crankshaft Pulley › Component Information5 pages
    Specifications › BE03.30-P-1000-02A Belt Pulley/Vibration Damper2 3
    Tools and Equipment › Electrical / Mechanical Repair2
    Piston, Engine › Component Information17 pages
    Specifications › Connecting Rod2 3 4 5 6 7 8 9
    Service and Repair › AR03.10-P-7021AV Remove/Install Pistons2 3 4 5 6 7 8
    Piston Ring, Engine › Component Information10 pages
    Specifications › BE03.10-P-1000-05B Inspection Data of Piston Rings2 3 4 5 6 7
    Service and Repair › AR03.10-P-7311BV Remove/Install Piston Rings2 3
  - Cylinder Head Assembly46 pages
    Rocker Arm Assembly › Component Information7 pages
    Service and Repair › AR05.20-P-2350AU Remove/Install Rocker Arm Shaft2 3 4 5
    Tools and Equipment › Special Tools2
    Valve Cover › Valve Cover Gasket › Component Information › Service and Repair
    Valve Guide › Component Information14 pages
    Specifications2 3 4
    Service and Repair › Procedures2 3 4 5 6 7 8 9 10
    Valve Seat › Component Information9 pages
    Specifications2 3 4 5 6
    Service and Repair › AR05.30-P-3831AV Replace Valve Seat Rings2 3
    Valve Spring › Component Information › Service and Repair2 3 4 5 6
    Valve, Intake/Exhaust › Component Information9 pages
    Specifications2 3 4 5
    Service and Repair › AR05.30-P-3511AV Remove/Install Valves2 3 4
  - Drive Belts, Mounts, Brackets and Accessories49 pages
    Drive Belt › Component Information25 pages
    Technical Service Bulletins20 pages
    All Technical Service Bulletins for Drive Belt:10 pages
    S-46_30-21B › May › 09 › Steering, A/C - Grinding/Gushing Noises2 3
    P-83_55-87B › Nov › 07 › A/C - Compressor/Drive Belt Noise2 3 4 5 6 7
    Customer Interest for Drive Belt:10 pages
    S-46_30-21B › May › 09 › Steering, A/C - Grinding/Gushing Noises2 3
    P-83_55-87B › Nov › 07 › A/C - Compressor/Drive Belt Noise2 3 4 5 6 7
    Testing and Inspection › AP13.22-P-1351Z Inspect Poly-V-Belt For Wear and Damage2 3 4 5
    Drive Belt Tensioner › Component Information › Service and Repair2
    Engine Mount › Component Information22 pages
    Specifications › Left2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
    Service and Repair › Procedures2 3 4 5 6
  - Engine Lubrication163 pages
    Engine Oil Pressure › Component Information › Specifications › Mechanical Specifications2 3
    Engine Oil Dip Stick - Dip Stick Tube › Component Information33 pages
    Technical Service Bulletins28 pages
    All Technical Service Bulletins for Engine Oil Dip Stick - Dip Stick Tube: › LI01-45_P-047548 › Aug › 09 › Engine - Oil Level Message General Information2 3 4 5 6 7 8 9 10 11 12 13 14
    Customer Interest for Engine Oil Dip Stick - Dip Stick Tube: › LI01-45_P-047548 › Aug › 09 › Engine - Oil Level Message General Information2 3 4 5 6 7 8 9 10 11 12 13 14
    Specifications › Crankcase Ventilation, Cylinder Head Cover2 3
    Tools and Equipment › Electrical / Mechanical Repair2
    Engine Oil Drain Plug › Component Information › Tools and Equipment › Oil Drain & Plug Wrench - AST Tool # H 27602
    Engine Oil › Component Information7 pages
    Specifications › Mechanical Specifications2 3
    Service Precautions › Engine Oils2
    Tools and Equipment › Special Tools2
    Oil Cooler, Engine › Component Information › Specifications2 3
    Oil Filter Housing › Component Information › Specifications2 3
    Oil Level Warning Indicator Control Module › Component Information › Technical Service Bulletins28 pages
    All Technical Service Bulletins for Oil Level Warning Indicator Control Module: › LI01-45_P-047548 › Aug › 09 › Engine - Oil Level Message General Information2 3 4 5 6 7 8 9 10 11 12 13 14
    Customer Interest for Oil Level Warning Indicator Control Module: › LI01-45_P-047548 › Aug › 09 › Engine - Oil Level Message General Information2 3 4 5 6 7 8 9 10 11 12 13 14
    Oil Level Sensor › Component Information54 pages
    Technical Service Bulletins34 pages
    Customer Interest for Oil Level Sensor:17 pages
    LI01-45_P-047548 › Aug › 09 › Engine - Oil Level Message General Information2 3 4 5 6 7 8 9 10 11 12 13 14
    P-18_40-29C › Feb › 07 › Engine - Oil Leaks Between Oil Level Sensor & Oil Pan2
    P-18_40-18A › Jul › 02 › Engine Controls - 'Engine Oil Level Above Max' Displayed
    All Technical Service Bulletins for Oil Level Sensor:17 pages
    LI01-45_P-047548 › Aug › 09 › Engine - Oil Level Message General Information2 3 4 5 6 7 8 9 10 11 12 13 14
    P-18_40-29C › Feb › 07 › Engine - Oil Leaks Between Oil Level Sensor & Oil Pan2
    P-18_40-18A › Jul › 02 › Engine Controls - 'Engine Oil Level Above Max' Displayed
    Specifications › Oil Pan2
    Locations › Oil Sensor (Oil Level, Temperature and Quality)2 3 4 5 6
    Description and Operation › GF18.40-P-4111-02A Oil Sensor Function2 3
    Service and Repair › Procedures2 3 4 5 6 7 8 9
    Oil Pan, Engine › Component Information21 pages
    Technical Service Bulletins4 pages
    All Technical Service Bulletins for Oil Pan: › P-18_40-29C › Feb › 07 › Engine - Oil Leaks Between Oil Level Sensor & Oil Pan2
    Customer Interest for Oil Pan: › P-18_40-29C › Feb › 07 › Engine - Oil Leaks Between Oil Level Sensor & Oil Pan2
    Specifications › Mechanical Specifications2 3 4 5
    Service Precautions › AH01.45-P-0001-01PV Notes on Application of Sealing Compound to Oil Pan2 3
    Service and Repair › Procedures2 3 4 5 6 7
    Tools and Equipment › Special Tools2
    Oil Pump, Engine4 pages
    Engine Oil Pressure3 pages
    Component Information › Specifications › Mechanical Specifications2 3
    Component Information › Specifications › Mechanical Specifications
    Oil Pressure Regulator Valve › Component Information › Service and Repair
    Oil Spray Jet › Component Information › Specifications2
    Oil Temperature Sensor/Switch, Engine › Component Information › Locations2 3
  - Intake Manifold › Component Information6 pages
    Specifications › Electronic Accelerator2
    Description and Operation › Intake Manifold Task2 3 4
  - Relays and Modules - Engine › Oil Level Warning Indicator Control Module › Component Information › Technical Service Bulletins28 pages
    All Technical Service Bulletins for Oil Level Warning Indicator Control Module: › LI01-45_P-047548 › Aug › 09 › Engine - Oil Level Message General Information2 3 4 5 6 7 8 9 10 11 12 13 14
    Customer Interest for Oil Level Warning Indicator Control Module: › LI01-45_P-047548 › Aug › 09 › Engine - Oil Level Message General Information2 3 4 5 6 7 8 9 10 11 12 13 14
  - Seals and Gaskets, Engine19 pages
    Crankshaft Main Bearing Seal › Component Information › Service and Repair › Procedures2 3
    Cylinder Head Gasket › Component Information › Service and Repair › AH01.30-P-1000-04VA Information on Applying Sealant to A Cylinder Head Gasket2
    Front Crankshaft Seal › Component Information › Service and Repair › Procedures2 3 4 5 6
    Valve Cover Gasket › Component Information › Service and Repair
    Valve Guide Seal › Component Information › Service and Repair › Procedures2 3 4 5 6 7
  - Sensors and Switches - Engine57 pages
    Oil Level Sensor › Component Information54 pages
    Technical Service Bulletins34 pages
    Customer Interest for Oil Level Sensor:17 pages
    LI01-45_P-047548 › Aug › 09 › Engine - Oil Level Message General Information2 3 4 5 6 7 8 9 10 11 12 13 14
    P-18_40-29C › Feb › 07 › Engine - Oil Leaks Between Oil Level Sensor & Oil Pan2
    P-18_40-18A › Jul › 02 › Engine Controls - 'Engine Oil Level Above Max' Displayed
    All Technical Service Bulletins for Oil Level Sensor:17 pages
    LI01-45_P-047548 › Aug › 09 › Engine - Oil Level Message General Information2 3 4 5 6 7 8 9 10 11 12 13 14
    P-18_40-29C › Feb › 07 › Engine - Oil Leaks Between Oil Level Sensor & Oil Pan2
    P-18_40-18A › Jul › 02 › Engine Controls - 'Engine Oil Level Above Max' Displayed
    Specifications › Oil Pan2
    Locations › Oil Sensor (Oil Level, Temperature and Quality)2 3 4 5 6
    Description and Operation › GF18.40-P-4111-02A Oil Sensor Function2 3
    Service and Repair › Procedures2 3 4 5 6 7 8 9
    Oil Temperature Sensor/Switch, Engine › Component Information › Locations2 3
  - Timing Components40 pages
    Balance Shaft › Component Information › Specifications › Balancing Shaft2
    Camshaft Gear/Sprocket › Component Information › Specifications2
    Timing Chain › Component Information13 pages
    Service Precautions
    Service and Repair › Procedures2 3 4 5 6 7 8 9 10 11 12
    Timing Chain Guide › Component Information › Service and Repair
    Timing Chain Tensioner › Component Information › Specifications2 3
    Timing Component Alignment Marks › Component Information › Locations2
    Timing Cover › Component Information8 pages
    Specifications › Timing Case Cover Bolts2
    Service and Repair › Procedures2 3 4 5 6
    Variable Valve Timing › Variable Valve Timing Solenoid › Component Information › Locations › Adjustable Camshaft Timing Solenoid2 3 4 5 6 7 8 9
  - Tune-up and Engine Performance Checks42 pages
    Fuel Pressure › System Information › Specifications
    Idle Speed › System Information › Description and Operation2
    Air Cleaner Housing › Air Cleaner Fresh Air Duct/Hose › Component Information › Service and Repair2
    Fuel Filter › Component Information6 pages
    Technical Service Bulletins › Fuel System - Fuel Pump/Filter Module Replacement
    Description and Operation › Fuel Filter With Integrated Fuel Pressure Regulator, Location2 3 4 5
    Firing Order › Component Information › Specifications › Firing Order2 3
    Spark Plug › Component Information10 pages
    Specifications › Spark Plug Chart2
    Service and Repair › Procedures2 3 4 5 6
    Tools and Equipment › Spark Plug Pliers - AST Tool # H 18492
    Compression Check › System Information18 pages
    Specifications › Low Compression2 3 4 5 6 7 8 9 10
    System Diagnosis › AR01.00-P-1200B Testing Compression Pressure2 3 4 5 6 7 8
  - Water Pump › Component Information11 pages
    Technical Service Bulletins2 pages
    Customer Interest for Water Pump: › P-20_10-23 › May › 03 › Cooling System - Water Pump Leakage
    All Technical Service Bulletins for Water Pump: › P-20_10-23 › May › 03 › Cooling System - Water Pump Leakage
    Service and Repair › Procedures2 3 4 5 6 7 8 9
- Cooling System168 pages
  - Auxiliary Water Pump › Component Information7 pages
    Locations
    Description and Operation › Recirculation Pump2
    Service and Repair › AR83.25-P-1170P Remove/Install/Replace Heating Water Circulation Pump2 3 4
  - Coolant › Component Information33 pages
    Specifications › Mechanical Specifications2 3 4 5 6 7 8
    Service Precautions › AH20.00-N-2080-01A Notes on Coolant2
    Description and Operation › AH20.00-P-1141-01V Notes on Coolant Level2 3 4 5 6 7 8 9
    Service and Repair › Procedures2 3 4 5 6 7 8 9 10 11 12 13 14
  - Coolant Level Sensor › Component Information › Locations2
  - Radiator Cooling Fan25 pages
    Radiator Cooling Fan Motor › Component Information › Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
    Fan Clutch › Component Information › Tools and Equipment
  - Engine - Coolant Temperature Sensor/Switch29 pages
    Coolant Temperature Sensor/Switch (For Computer) › Component Information5 pages
    Locations › Coolant Temperature Sensor, Location2
    Description and Operation › Coolant Temperature Sensor, Location/Task/Design/Function2 3
    Temperature Sensor (Gauge) › Component Information › Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
  - Fan Shroud › Component Information › Specifications2
  - Heater Core › Component Information4 pages
    Locations
    Description and Operation › STH Heater Core2 3
  - Radiator › Component Information8 pages
    Specifications › Radiator, Coolant Hoses2
    Service and Repair › Procedures2 3 4
    Tools and Equipment › Special Tools2
  - Radiator Cap › Component Information14 pages
    Specifications › BE20.30-P-1000-01A Test Values For Cooling System Cap2 3 4 5 6 7
    Testing and Inspection › AR20.30-P-4300FV Test Cooling System Cap2 3 4 5 6 7
  - Sensors and Switches - Cooling System31 pages
    Coolant Level Sensor › Component Information › Locations2
    Engine - Coolant Temperature Sensor/Switch29 pages
    Coolant Temperature Sensor/Switch (For Computer) › Component Information5 pages
    Locations › Coolant Temperature Sensor, Location2
    Description and Operation › Coolant Temperature Sensor, Location/Task/Design/Function2 3
    Temperature Sensor (Gauge) › Component Information › Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
  - Thermostat, Engine Cooling › Component Information › Testing and Inspection2
  - Water Pump › Component Information11 pages
    Technical Service Bulletins2 pages
    Customer Interest for Water Pump: › P-20_10-23 › May › 03 › Cooling System - Water Pump Leakage
    All Technical Service Bulletins for Water Pump: › P-20_10-23 › May › 03 › Cooling System - Water Pump Leakage
    Service and Repair › Procedures2 3 4 5 6 7 8 9
- Exhaust System11 pages
05Powertrain Management Powertrain Management: Sections
06Transmission and Drivetrain Transmission and Drivetrain: Sections
07Brakes and Traction Control Brakes and Traction Control: Sections
08Starting and Charging Starting and Charging: Sections
09Power and Ground Distribution Power and Ground Distribution: Sections
10Steering and Suspension Steering and Suspension: Sections
11Heating and Air Conditioning Heating and Air Conditioning: Sections
12Restraint Systems Restraint Systems: Sections
13Accessories and Optional Equipment Accessories and Optional Equipment: Sections
14Body and Frame Body and Frame: Sections
15Cruise Control Cruise Control: Sections
16Instrument Panel, Gauges and Warning Indicators Instrument Panel, Gauges and Warning Indicators: Sections
17Lighting and Horns Lighting and Horns: Sections
18Windows and Glass Windows and Glass: Sections
19Wiper and Washer Systems Wiper and Washer Systems: Sections