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2003 MERCEDES-BENZ C240 CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT MERCEDES-BENZ REPAIR SHOPS DON'T WANT YOU TO KNOW
Learn how to repair a car or truck, install or remove parts, wire an engine, reset warning lights, replace fuel filter, fix auto body and more. Get Automotix DIY!Select Section
- Component Locations
- Wiring Diagrams
- Technical Service Bulletins
- Specifications
- A/C & Heater Service
- Brake Service
- Fuel Filter Replacement
- Driveline, U-Joint & CV Axles Replacement
- Starter & Alternator Replacement
- Cabin Air Filter Locations & Replacement
- Maintenance Lamp Reset
- Radiator & Hose Replacement
- Serpentine Belt Service
Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 2003 MERCEDES-BENZ C240 car and truck
repair procedures including MERCEDES-BENZ engine diagrams, wiring diagrams, repair work estimating measures, technical service bulletins, auto body work
guidance, starter & alternator replacement procedures, serpentine belt replacement procedures, radiator & hose replacement procedures, tune-up &
drivability specifications, quick lube illustrations, preventive maintenance guide, engine light reset instructions, parts removal and install
procedures, fuel filter replacement directions, component location diagrams, air filter locations & replacement instructions, a/c
system specifications, and general auto service procedures. You don't have to be a car mechanic or technician to know how to fix
your MERCEDES-BENZ C240 automobile. Try the Automotix DIY solution today!
A/C & HEATER SERVICE PROCEDURES FOR 2003 MERCEDES-BENZ C240 AUTOMOBILES
Mercedes-Benz -> Automatic Temperature Control Systems -> Troubleshooting -> SL55 AMG, SL500 & SL600
Vehicle: 2003 MERCEDES-BENZ C240 2.6 V6 GAS
Refer to Figs. through , for explanations of symbols, connections and steps included in charts.
SL55 AMG, SL500 & SL600
When troubleshooting compressor, refer to Fig. , for component locations.
When A/C compressor does not switch on, proceed as follows:
- Inspect A/C push-button control module ground connection by turning ignition to On position and pressing AUTOMATIC button.
- Connect voltmeter to terminal block and test both dual function A/C compressor pressure switch connections in series for ground, Fig. . Compare resul...
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BRAKE SERVICE PROCEDURES FOR 2003 MERCEDES-BENZ C240 AUTOMOBILES
Disc Brakes -> Rotor, Replace
Vehicle: 2003 MERCEDES-BENZ C240 2.6 V6 GAS
- Remove caliper as outlined in "Caliper, Replace." Do not disconnect brake hose.
- On front rotors, remove brake carrier from steering knuckle.
- On rear rotors, disconnect parking brake.
- On all models, remove mounting bolts and...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 2003 MERCEDES-BENZ C240 AUTOMOBILES
Mercedes-Benz -> Fuel Filter Replacement -> Except 2003-06 E320 & E500 Sedans Less 4 Matic & 2004-06 E Series w/Gasoline Engines -> Fuel System Pressure Relief -> Removal & Installation
Vehicle: 2003 MERCEDES-BENZ C240 4matic 2.6 V6 GAS
Fuel System Pressure Relief
Do not smoke or allow an open flame of any type when working on or near any fuel system related components. The highly flammable vapor mixtures may ignite, resulting in serious personal injury.
Prior to disconnecting fuel lines, the fuel system pressure must be relieved to prevent accidental fuel spray.
After the battery has been disconnected and reconnected, some abnormal driveability symptoms may occur. The vehicle may need to be driven while it relearns its adaptive strategy.
- Ensure t...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 2003 MERCEDES-BENZ C240 AUTOMOBILES
DRIVESHAFT, Replace
Vehicle: 2003 MERCEDES-BENZ C240 2.6 V6 GAS
Lethal injuries are possible if vehicle slips off of lifting platform. Align vehicle between the columns of the lifting platform and position the four support plates at the lifting platform support points specified by the vehicle manufacturer.
- Raise vehicle.
- Remove exhaust system at flange connection.
- Remove exhaust shielding plate.
- Remove bottom part of noise encapsulation.
- Remove rear engine crossmember and rear engine mount.
- Unscrew crossmember at floor shift.
- Detach front reinforcement brace below propeller shaft.
- Slacken bolts of propeller shaft intermediate bearing.
- Disconnect ...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 2003 MERCEDES-BENZ C240 AUTOMOBILES
Alternator, Replace
Vehicle: 2003 MERCEDES-BENZ C240 2.6 V6 GAS
- Remove air cleaner housing and intake air scoop.
- Remove drive belt.
- Disconnect electrical connectors.
- Remove moun...
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CABIN AIR FILTER LOCATIONS & REPLACEMENT PROCEDURES FOR 2003 MERCEDES-BENZ C240 AUTOMOBILES
Cabin Air Filter Service -> Mercedes-Benz -> 2002-07 C & 2002-09 CLK Class
Vehicle: 2003 MERCEDES-BENZ C240 2.6 V6 GAS
On 2002-05 models, under normal operating conditions the cabin air filter should be replaced every 15,000 miles. In dusty areas change the cabin air filter more often.
On 2006-08 models except AMG, under normal operating conditions the cabin air filter should be replaced every 24 months or 26,000 miles. In dusty areas change the cabin air filter more often.
On 2009 models except AMG, under normal operating conditions the cabin air filter should be replaced every 24 months or 20,000 miles. In dusty areas change the cabin air filter more often.
On 2006-09 AMG mo...
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MAINTENANCE LAMP RESET PROCEDURES FOR 2003 MERCEDES-BENZ C240 AUTOMOBILES
Mercedes-Benz -> Air Bag Off Lamp ->
Vehicle: 2003 MERCEDES-BENZ C240 2.6 V6 GAS
The Air Bag Off should illuminate for 6 seconds when the ignition switch is placed in the On position. The lamp will illuminate when the specified child safety seat has been properly installed on the passenger front seat, indicating that the front passenger ...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 2003 MERCEDES-BENZ C240 AUTOMOBILES
Radiator, Replace
Vehicle: 2003 MERCEDES-BENZ C240 2.6 V6 GAS
- Remove engine compartment panel.
- Drain radiator coolant into suitable container.
- Disconnect fan connector and remove shroud.
- Remove radiator bottom ATF line fixture mounting bolt.
- Disconnect ATF lines from radiator. Plug and seal lines and...
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SERPENTINE BELT SERVICE PROCEDURES FOR 2003 MERCEDES-BENZ C240 AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 2003 MERCEDES-BENZ C240 2.6 V6 GAS
- Open engine hood.
- Remove front engine cover.
- Remove hose from silencer.
- Remove two bolts securing charge air hose to silencer.
- Rotate or lift belt tensioner arm counterclockwise using a suita...
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COMPONENT LOCATION DIAGRAMS FOR 2003 MERCEDES-BENZ C240 AUTOMOBILES
Component location diagrams for most 2003 MERCEDES-BENZ C240 cars and light trucks sold in the U.S. from 1990+.
 Right Rear Wheelhouse Diagram for 2003 MERCEDES-BENZ C240 4matic 2.6 V6 GASComponents on diagram: |
 Rear Bumper, Left Diagram for 2003 MERCEDES-BENZ C240 4matic 2.6 V6 GASComponents on diagram: |
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WIRING DIAGRAMS FOR 2003 MERCEDES-BENZ C240 AUTOMOBILES
OEM drawn wiring diagrams for most 2003 MERCEDES-BENZ C240 cars and light trucks sold in the U.S.
 2003 MERCEDES-BENZ C240 4matic 2.6 V6 GAS Wiring DiagramComponents on diagram: |
 2003 MERCEDES-BENZ C240 2.6 V6 GAS Wiring DiagramComponents on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 2003 MERCEDES-BENZ C240 AUTOMOBILES
OEM TSB listings for most 2003 MERCEDES-BENZ C240 cars and light trucks sold in the U.S. from 1985+.
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Document: Re-code the Software Calibration Number (SCN) Vehicle: 2003 MERCEDES-BENZ C240 2.6 V6 GAS Auto Systems: |
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Document: Maintenance Systems Overview Vehicle: 2003 MERCEDES-BENZ C240 2.6 V6 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 2003 MERCEDES-BENZ C240 AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 2003 MERCEDES-BENZ C240 cars and light trucks sold in the U.S. and Canada from 1970+.
- Brake caliper mounting bolt torque
- Brake drum runout, machining, & discard specs
- Minimum brake lining thickness.
- Brake rotor runout, parallelism, machining, discard, & finish specs
A/C SYSTEM SPECIFICATIONS: Air conditioning refrigerant capacity and type as well as lubricant capacity for most 2003 MERCEDES-BENZ C240 cars and light trucks sold in the U.S. and Canada from 1980+.
- Refrigerant capacity & type, compressor oil viscosity, total system oil capacity & compressor clutch gap
COOLING SYSTEM BLEED: Cooling system bleeder valve identification, bleeder type and bleed procedures for most domestic and imported cars and light trucks sold in the U.S. and Canada from 1986+.
PREVENTIVE MAINTENANCE: Preventive maintenance recommendations and required services for most domestic and imported cars and light trucks sold in the U.S. and Canada from 1980+. Includes severe and routine service schedules
QUICK-LUBE and ILLUSTRATIONS: Fluid recommendations, capacities, drain plug torques, tire data, and severe service recommended preventive maintenance schedules. Information covers most 2003 MERCEDES-BENZ C240 cars and light trucks sold in the U.S. and Canada from 1980+. Engine and chassis service images.
- Automatic transmission/transaxles capacities, lubricant recommendations
- Differential/final drive capacities, lube recommendations, grades, & viscosities
- Final drive fill & drain plug torques
- Number of lubrication fittings & plugs
- Power steering, brake, & clutch fluid recommendations
- Manual transmission/transaxle capacities, lube recommendations, grades, & viscosities
- Number of lubrication fittings & plugs
- Power steering, brake, & clutch fluid recommendations
- Engine oil capacities, API grade recommendations, SAE viscosity recommendations, drain plug torque
- Severe service maintenance & interval recommendations
- Tire sizes, wheel nut/bolt torque, pressures & rim sizes
- Transfer case capacities, lube recommendations, grades, & viscosities
TUNE-UP & DRIVEABILITY SPECIFICATIONS: Most tune-up specifications for most 2003 MERCEDES-BENZ C240 cars and light trucks sold in the U.S. and Canada from 1980+
- Airflow sensor electrical specifications
- Tensioning specifications for systems with automatic tensioners
- Barometric pressure sensor specs
- Battery group number and cranking performance
- Crankshaft & camshaft position sensor resistance
- Engine compression pressures
- Coolant temperature sensor specs
- Computer advance.
- Diesel fuel temperature sensor resistance.
- Distributor advance specifications
- Ignition pickup coil resistance
- Exhaust gas recirculation temperature sensor resistance
- Engine fastener torque values
- Firing order diagrams
- Fuel system pressures
- Generator (alternator) specs
- Intake air temperature sensor specs
- Ignition coil specifications
- Fuel injector resistance
- Engine idle speeds
- Knock sensor resistance
- Manifold absolute pressure sensor specs
- Mixture control solenoid resistance
- Voltage regulator specs
- Spark plug applications & gaps
- Starter motor electrical specs.
- Tensioning specifications for systems without automatic tensioners
- Throttle body temperature sensor resistance
- Ignition timing in degrees at rpm
- Transmission oil temperature sensor resistance
- Throttle position sensor specs
- Vacuum sensor valve specs
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