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2003 MERCEDES-BENZ S500 CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT MERCEDES-BENZ REPAIR SHOPS DON'T WANT YOU TO KNOW
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- Component Locations
- Wiring Diagrams
- Technical Service Bulletins
- Specifications
- A/C & Heater Service
- Brake Service
- Fuel Filter Replacement
- Driveline, U-Joint & CV Axles Replacement
- Tire Pressure Monitoring System
- Starter & Alternator Replacement
- Cabin Air Filter Locations & Replacement
- Maintenance Lamp Reset
- Radiator & Hose Replacement
- Serpentine Belt Service

A/C & HEATER SERVICE PROCEDURES FOR 2003 MERCEDES-BENZ S500 AUTOMOBILES
Mercedes-Benz -> Component Replacement & Adjustment -> Heater Core Temperature Sensor, Replace -> CL55 AMG, CL500, CL600, S55 AMG, S430, S500 & S600 -> Front -> Rear
Vehicle: 2003 MERCEDES-BENZ S500 4matic 5.0 V8 GAS
CL55 AMG, CL500, CL600, S55 AMG, S430, S500 & S600
Front
- Remove center console cover.
- Disconnect connectors.
- Remove lefthand and righthand heater core temperature sensors.
- Reverse proce...
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BRAKE SERVICE PROCEDURES FOR 2003 MERCEDES-BENZ S500 AUTOMOBILES
Anti-lock Brakes -> Description -> Components -> Electronic Control Unit -> System -> Wheel Speed Sensors
Vehicle: 2003 MERCEDES-BENZ S500 5.0 V8 GAS
System
Four-wheel ABS uses a control unit, hydraulic actuator and wheel speed sensors to control brake fluid pressure and prevent wheel lock during severe braking conditions,
Basic ABS components are supplemented by an expanded hydraulic unit, a charging pump, a fourth wheel speed sensor and a more comprehensive electronic system for Acceleration Slip Regulation (ASR) and Electronic Traction System(ETS).
Integrated with ABS and traction control systems, Electronic Stability Program (ESP) detects slides and applies brake pressure to individual wheels to help maintain control.
Components
E...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 2003 MERCEDES-BENZ S500 AUTOMOBILES
Mercedes-Benz -> Component Locations -> S320, SL320, S420, S430, S500, S600, SL500, SL600 & 1993-92 300SE, 300SL, 400SE, 400SEL, 500SEC, 500SEL, 500SL, 600SEC, 600SEL & 600SL
Vehicle: 2003 MERCEDES-BENZ S500 5.0 V8 GAS
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 2003 MERCEDES-BENZ S500 AUTOMOBILES
DRIVESHAFT, Replace
Vehicle: 2003 MERCEDES-BENZ S500 5.0 V8 GAS
- Remove exhaust system from flange back.
- Remove mounting bolts and rear reinforcement bridge, Fig. .
- Disconnect front exhaust shield from exhaust shield.
- Disconnect exhaust shield from tunnel.
- Remove mounting bolts and front reinforcement bridge.
- Loosen intermediate bearing mounting bolts.
- Remove mounting bolts and disconnect propeller shaft from transmission. Flexible disk remains with propeller shaft.
- Remove mounting bolts and disconnect propeller shaft from differential carrier. Flexible disk remains with propeller shaft.
- Loosen flexible discs fitted sleeves using suitable six-inc...
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TIRE PRESSURE MONITORING SYSTEM PROCEDURES FOR 2003 MERCEDES-BENZ S500 AUTOMOBILES
Reset Procedures
Vehicle: 2003 MERCEDES-BENZ S500 5.0 V8 GAS
- Verify pressures of all four tires.
- Turn electronic key in starter switch to position 2 (the engine must not be running).
- Press forward or back button on the multifunction steering wheel until the display for trip and main odometer appears.
- Press up or down arrow button repeatedly until the tire inflation pressure monitor appears.
- Press and hold reset button on the instrument cluster until the message MONITOR CURRENT TIRE PRESSURE? appears. Release the R button.
- Press button + (YES) on the multifunction steering wheel to activate the tire inflation pressure monitor. The message TIRE...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 2003 MERCEDES-BENZ S500 AUTOMOBILES
Alternator, Replace
Vehicle: 2003 MERCEDES-BENZ S500 5.0 V8 GAS
- Remove drive belt.
- Remove protective cover, as required, and disconnect electrical connectors.
- Remove ...
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CABIN AIR FILTER LOCATIONS & REPLACEMENT PROCEDURES FOR 2003 MERCEDES-BENZ S500 AUTOMOBILES
Cabin Air Filter Service -> Mercedes-Benz -> 1996-2002 E Class & 2000-06 CL & S Class
Vehicle: 2003 MERCEDES-BENZ S500 5.0 V8 GAS
On 1996-2005 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 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 2006 AMG models, under normal operating conditions the cabin air filter should be replaced every 24 months or 30,000 miles. In dusty areas change the cabin air filter ...
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MAINTENANCE LAMP RESET PROCEDURES FOR 2003 MERCEDES-BENZ S500 AUTOMOBILES
Mercedes-Benz -> Brake Pad Wear Indicator Lamp ->
Vehicle: 2003 MERCEDES-BENZ S500 5.0 V8 GAS
The Brake Pad Wear indicator lamp should illuminate when the ignition switch is placed in the On position to indicate the warning lamp is operational. After the engine has been started, the warnin...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 2003 MERCEDES-BENZ S500 AUTOMOBILES
Radiator, Replace
Vehicle: 2003 MERCEDES-BENZ S500 5.0 V8 GAS
- Remove engine compartment bottom panel.
- Drain radiator coolant into suitable container.
- Remove air cleaner air intake pipes.
- Remove fan shroud retaining lugs' mounting screws.
- Disconnect fan electrical connector.
- Disconnect coolant hoses from radiator.
- Remove ATF line mounting plate bolts.
- Remov...
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SERPENTINE BELT SERVICE PROCEDURES FOR 2003 MERCEDES-BENZ S500 AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 2003 MERCEDES-BENZ S500 5.0 V8 GAS
- Remove fan shroud ring and place over fan.
- On first versions, proceed as follows:
- Loosen adjusting bolt 1/4-1/2 turn.
- Loosen tensioning nut (turn to left).
- Remove drive belt.
- Inspect pulley surfaces and replace as required.
- Set pointer at marking 1.
- Install belt starting at tensioning pulley.
- Tighten tensioning nut until setting point...
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COMPONENT LOCATION DIAGRAMS FOR 2003 MERCEDES-BENZ S500 AUTOMOBILES
Component location diagrams for most 2003 MERCEDES-BENZ S500 cars and light trucks sold in the U.S. from 1990+.
![]() Components on diagram: |
![]() Components on diagram: |
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WIRING DIAGRAMS FOR 2003 MERCEDES-BENZ S500 AUTOMOBILES
OEM drawn wiring diagrams for most 2003 MERCEDES-BENZ S500 cars and light trucks sold in the U.S.
![]() Components on diagram: |
![]() Components on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 2003 MERCEDES-BENZ S500 AUTOMOBILES
OEM TSB listings for most 2003 MERCEDES-BENZ S500 cars and light trucks sold in the U.S. from 1985+.
Document: Re-code the Software Calibration Number (SCN) Vehicle: 2003 MERCEDES-BENZ S500 5.0 V8 GAS Auto Systems: |
Document: Maintenance Systems Overview Vehicle: 2003 MERCEDES-BENZ S500 5.0 V8 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 2003 MERCEDES-BENZ S500 AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 2003 MERCEDES-BENZ S500 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 S500 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 S500 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 S500 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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