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2004 Audi RS6 CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Audi REPAIR SHOPS DON'T WANT YOU TO KNOW
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- Component Locations
- Wiring Diagrams
- Technical Service Bulletins
- Specifications
- A/C & Heater 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

A/C & HEATER SERVICE PROCEDURES FOR 2004 Audi RS6 AUTOMOBILES
Audi -> Automatic Temperature Control System Diagnosis & Testing -> A/C System Performance Inspection
Vehicle: 2004 Audi RS6 4.2 V8 GAS
- Before beginning test, ensure following conditions exist:
- Ambient temperature is greater than 60° F.
- Condenser and radiator are clean and free of obstructions.
- Accessory drive belt is in good condition and is properly tensioned.
- All air ducts, covers and seals are in good condition and properly installed.
- Air flow through dust and pollen filter is not obstructed.
- All instrument panel vents are open.
- Vehicle is not parked in direct sunlight.
- Expansion valve insulation is properly installed and undamaged. ...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 2004 Audi RS6 AUTOMOBILES
Audi -> Fuel Filter Scheduled Maintenance -> All 1989-05 -> Normal Service -> Severe Service
Vehicle: 2004 Audi RS6 4.2 V8 GAS
Normal Service
Service as re...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 2004 Audi RS6 AUTOMOBILES
DRIVESHAFT, Replace
Vehicle: 2004 Audi RS6 4.2 V8 GAS
- Raise and support vehicle.
- Remove rear section of exhaust system at clamp(s).
- Pry off rear attachments of drive shaft heat shield.
- Remove securing bolts for center bearing When removing securing bolts, support drive shaft by hand. Do not bend drive shaft.
- Remove heat shield. Continue supporting drive shaft.
- Screw in securing bolts for center bearing again hand-tight.
- Remove drive shaft heat shield from transmission.
- Check for a factory marking (colored dot) on drive shaft and on drive shaft flange on final drive at rear. If no colored dot is present, mark position of drive shaft fl...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 2004 Audi RS6 AUTOMOBILES
Alternator, Replace
Vehicle: 2004 Audi RS6 4.2 V8 GAS
- Disconnect battery ground cable.
- Raise and support vehicle.
- Remove fasteners and noise insulation panel.
- Rotate tensioner counterclockwise, using a suitable tool to release tension on drive belt. If drive belt is to be reused, mark direction of belt for reassembly.
- Secure belt tensioner in released position, using a suitable drift punch.
- Remove drive belt.
- Position suitable oil catch tray under engine in area of oil line.
- Separate oil line mounted above alternator.
- Remove b...
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CABIN AIR FILTER LOCATIONS & REPLACEMENT PROCEDURES FOR 2004 Audi RS6 AUTOMOBILES
Cabin Air Filter Service -> Audi -> 1998-2004 A6, Allroad, RS6, S6 & 2000-06 TT
Vehicle: 2004 Audi RS6 4.2 V8 GAS
On 1998-2000 models, the cabin air filter should be replaced every 15,000 miles.
On 2001-03 models, the cabin air filter should be replaced every 20,000 miles.
On 2004-07 models, the cabin air filter should be replaced at 15,000 miles, then every 20,000 miles.
- Open the hood.
- Remove the plenum chamber cover.
- Release the cabin air filter retaining tab ca...
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MAINTENANCE LAMP RESET PROCEDURES FOR 2004 Audi RS6 AUTOMOBILES
Audi -> Auto-Check Indicator System ->
Vehicle: 2004 Audi RS6 4.2 V8 GAS
The auto-check system will monitor certain vehicle systems when the ignition switch is placed in the On position and vehicle is operated. When all monitored systems are functioning properly, the system display will indicate "OK" for a few seconds after the ignition switch is placed in the On position.
This system monitors brake fluid level and hydraulic pressure, engine oil pressure, coolant temperature and level, brake pad wear, headlamps and tail lamps, battery voltage, washer fluid level and fuel level.
When the auto-check yellow or r...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 2004 Audi RS6 AUTOMOBILES
Heater Hose, Replace -> Inlet -> Outlet
Vehicle: 2004 Audi RS6 4.2 V8 GAS
Inlet
- Drain coolant into a suitable container.
- Reposition hose clamp at heater core and remove hose.
- Reposition hose clamp at rear coolant pipe and remove hose.
- Remove hose from vehicle.
- Reverse procedure t...
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SERPENTINE BELT SERVICE PROCEDURES FOR 2004 Audi RS6 AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 2004 Audi RS6 4.2 V8 GAS
- Raise and support vehicle.
- Remove fasteners and noise insulation.
- Mark direction of rotation of drive belt with chalk or felt pen, if belt is to be reused.
- Rotate...
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COMPONENT LOCATION DIAGRAMS FOR 2004 Audi RS6 AUTOMOBILES
Component location diagrams for most 2004 Audi RS6 cars and light trucks sold in the U.S. from 1990+.
![]() Components on diagram: |
![]() Components on diagram: |
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WIRING DIAGRAMS FOR 2004 Audi RS6 AUTOMOBILES
OEM drawn wiring diagrams for most 2004 Audi RS6 cars and light trucks sold in the U.S.
![]() Components on diagram: |
![]() Components on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 2004 Audi RS6 AUTOMOBILES
OEM TSB listings for most 2004 Audi RS6 cars and light trucks sold in the U.S. from 1985+.
Document: AIRBAG / PYROTECHNIC SAFETY BELT DEPLOYMENT INQUIRIES - REVISED Vehicle: 2004 Audi RS6 4.2 V8 GAS Auto Systems: |
Document: AUDI TIRE PRESSURE MONITORING SYSTEMS OVERVIEW - REVISED Vehicle: 2004 Audi RS6 4.2 V8 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 2004 Audi RS6 AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 2004 Audi RS6 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 2004 Audi RS6 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 2004 Audi RS6 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 2004 Audi RS6 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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