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2003 Volkswagen Passat CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Volkswagen 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
- 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 Volkswagen Passat car and truck
repair procedures including Volkswagen 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 Volkswagen Passat automobile. Try the Automotix DIY solution today!
A/C & HEATER SERVICE PROCEDURES FOR 2003 Volkswagen Passat AUTOMOBILES
Imported Cars & Light Trucks & Vans -> 2003-04 -> Leak Test -> Electronic Leak Detectors -> Fluid Leak Detectors
Vehicle: 2003 Volkswagen Passat 2.8 V6 GAS
Testing the refrigerant system for leaks is one of the most important phases of troubleshooting. One or more of the methods outlined will prove useful in detecting leaks or checking connections if service work is performed. Before beginning any leak test, attach a manifold gauge set and note pressure. If little or no pressure is indicated, a partial charge must be installed. Check all connections, compressor head gasket, oil filler plug and compressor shaft seal for leaks.
R-12 leak detectors will not detect R-134a leaks. For R-134a system an electronic type leak detector i...
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BRAKE SERVICE PROCEDURES FOR 2003 Volkswagen Passat AUTOMOBILES
Anti-lock Brakes -> Diagnosis & Testing -> Accessing Diagnostic Trouble Codes -> Bosch 5 -> Bosch 5.3 -> Clearing Diagnostic Trouble Codes -> Diagnostic Tests -> Diagnostic Trouble Code Interpretation -> ITT Mark 20 IE -> Testing -> Teves Type 04 -> Teves Type 20
Vehicle: 2003 Volkswagen Passat 4 Motion 4.0 W8 GAS
Accessing Diagnostic Trouble Codes
The ABS control unit has a permanent fault memory. If fault conditions occur at electrically monitored sensors or components they are stored in memory.
Faults are stored with varying priorities. Solenoid faults have the highest priority and are displayed first. Faults which occur occasionally or sporadic faults have the lowest priority and are displayed last.
Do not drive vehicle with VAG 1551 or equivalent scan tool connected.
- Connect a suitable scan tool to the Diagnostic Link Connector (DLC). Refer to Figs. through , for DLC locations and t...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 2003 Volkswagen Passat AUTOMOBILES
Volkswagen -> Fuel Filter Replacement -> Gasoline Engines -> Models w/Fitting Or Union Bolt Connection -> Models w/Fuel Hose Connection
Vehicle: 2003 Volkswagen Passat 1.8 L4 GAS
Models w/Fuel Hose Connection
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.
After the battery has been disconnected and reconnected, some abnormal driveabilty symptoms may occur. The vehicle may need to be driven while the vehicle relearns its adaptive strategy.
- Obtain the vehicle owners radio theft protection code prior to disconnecting the battery ground cable.
- Disconnect the battery ground cable.
- On models equipped with underbody moun...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 2003 Volkswagen Passat AUTOMOBILES
DRIVESHAFT, Replace
Vehicle: 2003 Volkswagen Passat 4 Motion 4.0 W8 GAS
- Raise and support vehicle.
- Remove rear section of exhaust system.
- Remove heat shield from vehicle underbody.
- Remove cover plate.
- Mark position of front and rear drive shaft sections on both constant velocity joints with paint, if not already marked.
- Remove upper three securing bolts in each drive shaft constant velocity joint.
- Install a suitable alignment fixture with ...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 2003 Volkswagen Passat AUTOMOBILES
Alternator, Replace
Vehicle: 2003 Volkswagen Passat 4 Motion 2.8 V6 GAS
- Disconnect wiring connectors from alternator.
- Remove serpentine drive belt, using a suitable removal tool.
- Remove alternator mounting bolts, then the alternator.
- Remove serpen...
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CABIN AIR FILTER LOCATIONS & REPLACEMENT PROCEDURES FOR 2003 Volkswagen Passat AUTOMOBILES
Cabin Air Filter Service -> Volkswagen -> 1998-2005 Passat
Vehicle: 2003 Volkswagen Passat 2.8 V6 GAS
On 1998-2003 models, the cabin air filter should be replaced every 10,000 miles.
On 2004-05 models, the cabin air filter should be replaced every 24 months or 20,000 miles.
- Open the hood.
- Remove plenum air intake cover, Fig. .
- Remove the reta...
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MAINTENANCE LAMP RESET PROCEDURES FOR 2003 Volkswagen Passat AUTOMOBILES
Volkswagen -> Air Bag Warning Lamp ->
Vehicle: 2003 Volkswagen Passat 4 Motion 2.8 V6 GAS
If the Air Bag warning lamp lights and stays on, diagnosis and ...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 2003 Volkswagen Passat AUTOMOBILES
Heater Hose, Replace -> Inlet -> Outlet
Vehicle: 2003 Volkswagen Passat 1.8 L4 GAS
Inlet
- Drain coolant into a suitable container.
- Reposition hose clamp at heater core and remove hose.
- Reposition hose clamp at coolant line and remove hose.
- Remove hose from vehicle.
- Reverse procedure t...
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SERPENTINE BELT SERVICE PROCEDURES FOR 2003 Volkswagen Passat AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 2003 Volkswagen Passat 1.8 L4 GAS
- Put lock carrier into service position.
- Mark direction of engine rotation on belt.
- Slacken belt by tur...
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COMPONENT LOCATION DIAGRAMS FOR 2003 Volkswagen Passat AUTOMOBILES
Component location diagrams for most 2003 Volkswagen Passat cars and light trucks sold in the U.S. from 1990+.
 Ground Connection Diagram for 2003 Volkswagen Passat 4 Motion 4.0 W8 GASComponents on diagram: |
 Igniter for Head Airbag, Driver's Side Diagram for 2003 Volkswagen Passat 1.8 L4 GASComponents on diagram: |
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WIRING DIAGRAMS FOR 2003 Volkswagen Passat AUTOMOBILES
OEM drawn wiring diagrams for most 2003 Volkswagen Passat cars and light trucks sold in the U.S.
 2003 Volkswagen Passat 4 Motion 4.0 W8 GAS Wiring DiagramComponents on diagram: |
 2003 Volkswagen Passat 4 Motion 2.8 V6 GAS Wiring DiagramComponents on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 2003 Volkswagen Passat AUTOMOBILES
OEM TSB listings for most 2003 Volkswagen Passat cars and light trucks sold in the U.S. from 1985+.
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Document: Radio, Entering and Retrieving Anti-Theft (SAFE) Code Vehicle: 2003 Volkswagen Passat 2.8 V6 GAS Auto Systems: |
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Document: Oil Consumption Measurement Vehicle: 2003 Volkswagen Passat 2.8 V6 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 2003 Volkswagen Passat AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 2003 Volkswagen Passat 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 Volkswagen Passat 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 Volkswagen Passat 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 Volkswagen Passat 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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