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Audi A8 Quattro CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Audi REPAIR SHOPS DON'T WANT YOU TO KNOW
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Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about Audi A8 Quattro car and truck
repair procedures including Audi 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 Audi A8 Quattro automobile. Try the Automotix DIY solution today!
A/C & HEATER SERVICE PROCEDURES FOR Audi A8 Quattro AUTOMOBILES
Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported Audi A8 Quattro cars and light trucks from 1990+
Imported Cars & Light Trucks & Vans -> 2001-02 -> System Inspection -> Compressor -> Condenser -> Evaporator -> Receiver-Drier/Accumulator -> Refrigerant Line Restrictions -> Thermostatic Expansion Valve
Vehicle: 2002 Audi A8 Quattro L 4.2 V8 GAS
While a detailed diagnostic procedure for all air conditioning systems would be impractical due to the many variations in construction and operation, there are three fundamental components of a total diagnosis:
- Refrigerant systems must have an adequate, but not excessive charge.
- Determination must be made whether the refrigerant system is governed by a cycling clutch compressor or by valves which control evaporator pressure.
- The air distribution system (blower motor, switches, vacuum lines and air ducts) must be operational before checking the ...
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BRAKE SERVICE PROCEDURES FOR Audi A8 Quattro AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported Audi A8 Quattro cars and light trucks from 1990+.
Power Brake Units -> Diagnosis & Testing -> Hydraulic Booster/Servo -> Pressure Accumulator Check Valve -> Pressure Accumulator Pressure Relief Valve -> Pressure Accumulator-Gas Pressure -> Vacuum Booster
Vehicle: 1998 Audi A8 Quattro 4.2 V8 GAS
Hydraulic Booster/Servo
- With ignition Off, depress brake pedal approximately 20 times to reduce system pressure.
- Disconnect warning lamp switch electrical connector, then remove switch.
- Attach pressure gauge with hollow bolt and copper washers to brake servo unit. Attach thick copper washer between brake servo unit and banjo fitting and thin copper washer between hollow bolt and banjo fitting.
- Start engine and let idle until pressure gauge reading exceeds 2030 psi.
- If specified pressure is not reached, measure delivery rate of central hydraulic pump as follows:
- Turn ignition Off, ...
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FUEL FILTER REPLACEMENT PROCEDURES FOR Audi A8 Quattro AUTOMOBILES
Fuel filter replacement procedures with corresponding images for most domestic and imported Audi A8 Quattro cars and light trucks sold in the U.S. for 1980+.
Audi -> Fuel Filter Replacement -> Gasoline Engines -> Removal & Installation
Vehicle: 1997 Audi A8 Quattro 4.2 V8 GAS
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.
Obtain the vehicle owner's radio theft protection code, then disconnect the battery ground cable. Briefly open fuel filler cap to relieve system pressure, then close it again.
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.
Removal & Installation
On A4 and S4 mod...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR Audi A8 Quattro AUTOMOBILES
Includes CV axle, universal joint, and driveline replacement, for domestic and imported Audi A8 Quattro cars and light trucks from 1990+.
CV AXLE SHAFT, Replace -> Front -> Rear
Vehicle: 2009 Audi A8 Quattro L 4.2 V8 GAS
Front
- On models with air spring suspension, position vehicle on lifting platform.
- On models without air spring suspension, raise and support vehicle.
- On all models, remove wheel.
- Loosen collar bolt for outer joint of drive axle.
- Remove noise insulation.
- Remove drive axle from transmission flange shaft.
- Remove drive axle. If there is not sufficient room to remove drive axle, proceed as follows:
- Remove nut and hex bolt and pull out both upper links upward.
- Swing wheel bearing housing out to side.
- Remove drive axle.
- Reverse procedure to install, noting the following:
- Torque wheel lug nu...
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TIRE PRESSURE MONITORING SYSTEM PROCEDURES FOR Audi A8 Quattro AUTOMOBILES
Description, component locations, reset procedures, relearn procedures, diagnosis and testing, wiring diagrams, component replacement, and identification of vehicles equipped and not equipped with tire pressure monitoring system for most domestic and imported Audi A8 Quattro cars and light trucks sold in the U.S. from mid 1990's+.
Component Replacement -> Front -> Installation -> Metal Valve Body & Wheel Electronics -> Rear -> Removal -> TPMS Antenna -> TPMS Control Module
Vehicle: 2005 Audi A8 Quattro L 6.0 W12 GAS
Metal Valve Body & Wheel Electronics
Removal
The nickel plated valve insert must be replaced every tire change. Release air from the tire by removing the nickel plated valve insert. The TPMS sensor can be reused, but a damaged sensor must be replaced.
- Loosen the wheel lug nuts.
- Raise and support the vehicle with jack stands.
- Remove the wheel and tire assembly.
- When dismounting the tire from the rim, note the following:
- When using pressure paddles, remove the side of the tire opposite the valve stem from the rim first. Do not use the paddles in area (a) , Fig. .
- Position the tire c...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR Audi A8 Quattro AUTOMOBILES
Includes starter and alternator replacement procedures for domestic and imported Audi A8 Quattro cars and light trucks from 1990+.
Alternator, Replace
Vehicle: 2001 Audi A8 Quattro 4.2 V8 GAS
- Disconnect battery ground cable.
- Remove sound proofing material.
- If obstructed, remove three screws of auxiliary heater.
- Remove air duct hose from alternator.
- Remove nuts for terminals B+ and D+ and remove terminals.
- Release tension on drive belt, lock tensioner in place wi...
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CABIN AIR FILTER LOCATIONS & REPLACEMENT PROCEDURES FOR Audi A8 Quattro AUTOMOBILES
Cabin air filter locations and replacement procedures with corresponding images for most domestic and imported Audi A8 Quattro cars and light trucks sold in the U.S. as equipped to the current model year.
Cabin Air Filter Service -> Audi -> 1997-2003 A8 & S8
Vehicle: 2003 Audi A8 Quattro 4.2 V8 GAS
On 1997-2000 models, the cabin air filter should be replaced every 15,000 miles. On 2001-03 models, the cabin air filter should be replaced every ...
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MAINTENANCE LAMP RESET PROCEDURES FOR Audi A8 Quattro AUTOMOBILES
Maintenance lamp reset procedures with corresponding images for most domestic and imported Audi A8 Quattro cars and light trucks sold in the U.S. from 1990+.
Audi -> Service Indicator Lamp -> 1998-2004 -> Less Scan Tool -> With Scan Tool
Vehicle: 2003 Audi A8 Quattro L 4.2 V8 GAS
With Scan Tool
- Connect VAG 1551 scan tool and VAG 1551/3 adapter cable, or equivalents, to diagnostic connector.
- "Rapid Data Transfer" will be displayed.
- Initiate adaptation function 10 as follows:
- Press buttons 1 and 0 to select adaptation function 10.
- Press Q button to confirm input.
- Press buttons 0 and 2 to insert channel number 02.
- Press Q button to confirm input.
Less Scan Tool
- Place ignition to Off position.
- Press reset button for trip recorder in instrument cluster and place ignition switch in On pos...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR Audi A8 Quattro AUTOMOBILES
Includes radiator, cooling and heater hose replacement procedures for domestic and imported Audi A8 Quattro cars and light trucks from 1990+
Coolant Hose, Replace -> Lower -> Upper
Vehicle: 1997 Audi A8 Quattro 4.2 V8 GAS
Lower
- Drain coolant into a suitable container.
- Reposition hose clamp at radiator and remove hose.
- Reposition hose clamp at thermostat housing and remove hose.
- Remove hose from vehicle.
- Reverse procedure...
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SERPENTINE BELT SERVICE PROCEDURES FOR Audi A8 Quattro AUTOMOBILES
Serpentine belt replacement procedures with corresponding images for most domestic and imported Audi A8 Quattro cars and light trucks sold in the U.S. from 1990+.
Serpentine Drive Belt, Replace
Vehicle: 2008 Audi A8 Quattro L 4.2 V8 GAS
- Rotate or lift the belt tensioner arm, using a suitable box end wrench to relieve tension fr...
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COMPONENT LOCATION DIAGRAMS FOR Audi A8 Quattro AUTOMOBILES
Component location diagrams for most Audi A8 Quattro cars and light trucks sold in the U.S. from 1990+.
 Underbody Components Diagram for 2008 Audi A8 Quattro L 6.0 W12 GASComponents on diagram: |
 Brake Light Switch Diagram for 2003 Audi A8 Quattro 4.2 V8 GASComponents on diagram: |
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WIRING DIAGRAMS FOR Audi A8 Quattro AUTOMOBILES
OEM drawn wiring diagrams for most Audi A8 Quattro cars and light trucks sold in the U.S.
 2002 Audi A8 Quattro L 4.2 V8 GAS Wiring DiagramComponents on diagram: |
 2003 Audi A8 Quattro 4.2 V8 GAS Wiring DiagramComponents on diagram: |
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TECHNICAL SERVICE BULLETINS FOR Audi A8 Quattro AUTOMOBILES
OEM TSB listings for most Audi A8 Quattro cars and light trucks sold in the U.S. from 1985+.
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Document: CD PLAYBACK PROBLEMS WITH NON-STANDARD CDS Vehicle: 2003 Audi A8 Quattro L 4.2 V8 GAS Symptoms: |
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Document: VIN PLATES, SAFETY CERTIFICATION LABELS, ORDERING PROCEDURES - REVISED Vehicle: 2003 Audi A8 Quattro L 4.2 V8 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR Audi A8 Quattro AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most Audi A8 Quattro 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 Audi A8 Quattro 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 Audi A8 Quattro 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 Audi A8 Quattro 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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