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1998 Audi A8 Quattro 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
- 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
A/C & HEATER SERVICE PROCEDURES FOR 1998 Audi A8 Quattro AUTOMOBILES
Imported Cars & Light Trucks & Vans -> 1998-2000 -> Oil Charge -> 2.5 & 3.5 TL -> 3.5 RL -> 3000GT -> 4Runner -> 626 -> Accent -> Accord -> Acura -> Amigo, Rodeo & Trooper -> Audi -> Avalon -> B-Series Pickup -> BMW -> Boxster & 911 -> Cabrio, Golf, GTI & Jetta -> Camry & Camry Solara -> Celica & Echo -> Civic w/Nippondenso Compressor & CR-V -> Civic w/Sanden Compressor -> CL -> Corolla -> Diamante -> Eclipse -> Elantra & Triburon -> ES300 -> Forester & Legacy -> Galant -> GS300 & GS400 -> Hombre -> Honda -> Hyundai -> Impreza -> Infiniti -> Insight, Prelude & S2000 -> Integra -> Isuzu -> Jaguar -> Kia -> Land Cruiser -> Lexus -> LS400 -> LX450 & LX470 -> Mazda -> Mercedes Benz -> Miata -> Millenia -> Mirage -> Mitsubishi -> Montero -> Montero Sport -> MPV -> New Beetle -> Nissan -> Oasis -> Odyssey -> Outback -> Passat -> Passport -> Pickup -> Porsche -> Protege -> RAV4 -> RX300 -> Saab -> SC300 & SC400 -> Sienna & Tacoma -> SLX -> Sonata -> Subaru -> Supra -> Suzuki -> T100 & Tundra -> Tercel -> Toyota -> Volkswagen -> Volvo
Vehicle: 1998 Audi A8 Quattro 4.2 V8 GAS
Remove defective components. Add the proper amount of oil to each replacement component. Most recovery/recycling equipment will measure the amount of oil being removed. This is the amount of oil to be added back to the system, follow manufactures instructions provided with the recovery/recycling station.
Acura
Integra
When replacing compressor drain old and new units. Add oil to new compressor equal to 5.0 oz. minus amount drained from old unit, but do not add more than 1.7 oz. of oil.
When replacing other system components add the following amount of new oil...
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BRAKE SERVICE PROCEDURES FOR 1998 Audi A8 Quattro AUTOMOBILES
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 1998 Audi A8 Quattro AUTOMOBILES
Audi -> Fuel Filter Scheduled Maintenance -> All 1989-05 -> Normal Service -> Severe Service
Vehicle: 1998 Audi A8 Quattro 4.2 V8 GAS
Normal Service
Service as re...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1998 Audi A8 Quattro AUTOMOBILES
CV AXLE SHAFT, Replace
Vehicle: 1998 Audi A8 Quattro 4.2 V8 GAS
- Remove wheel cover, then drive axle bolt in hub.
- Raise and support vehicle, then remove tires.
- Remove drive axle mounting bolts.
- Remove cable for ABS wheel speed sensor from bracket at brake caliper, then pull ABS wheel speed sensor slightly out of swing arm...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1998 Audi A8 Quattro AUTOMOBILES
Starter, Replace
Vehicle: 1998 Audi A8 Quattro 4.2 V8 GAS
- Remove engine cover from intake manifold.
- Remove throttle body assembly from rear of intake manifold.
- Attach suitable engine support adapter tool, to righthand rear engine lifting lug.
- Assemble suitable engine support bridge with brackets tool, to lefthand and right...
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CABIN AIR FILTER LOCATIONS & REPLACEMENT PROCEDURES FOR 1998 Audi A8 Quattro AUTOMOBILES
Cabin Air Filter Service -> Audi -> 1997-2003 A8 & S8
Vehicle: 1998 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 1998 Audi A8 Quattro AUTOMOBILES
Audi -> Brake Pad Wear Indicator Lamp ->
Vehicle: 1998 Audi A8 Quattro 4.2 V8 GAS
The brake pad wear warning lamp will be illuminated when disc brake pads wear d...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1998 Audi A8 Quattro AUTOMOBILES
Heater Hose, Replace -> Inlet -> Outlet
Vehicle: 1998 Audi A8 Quattro 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 line and remove hose.
- Remove hose from vehicle.
- Reverse procedure t...
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SERPENTINE BELT SERVICE PROCEDURES FOR 1998 Audi A8 Quattro AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 1998 Audi A8 Quattro 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 1998 Audi A8 Quattro AUTOMOBILES
Component location diagrams for most 1998 Audi A8 Quattro cars and light trucks sold in the U.S. from 1990+.
I/P & Console Component Locations Diagram for 1998 Audi A8 Quattro 4.2 V8 GAS Components on diagram: |
Fuel & Emissions Systems Component Locations Diagram for 1998 Audi A8 Quattro 4.2 V8 GAS Components on diagram: |
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WIRING DIAGRAMS FOR 1998 Audi A8 Quattro AUTOMOBILES
OEM drawn wiring diagrams for most 1998 Audi A8 Quattro cars and light trucks sold in the U.S.
1998 Audi A8 Quattro 4.2 V8 GAS Wiring Diagram Components on diagram: |
1998 Audi A8 Quattro 4.2 V8 GAS Wiring Diagram Components on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 1998 Audi A8 Quattro AUTOMOBILES
OEM TSB listings for most 1998 Audi A8 Quattro cars and light trucks sold in the U.S. from 1985+.
Document: AIRBAG / PYROTECHNIC SAFETY BELT DEPLOYMENT INQUIRIES - REVISED Vehicle: 1998 Audi A8 Quattro 4.2 V8 GAS Auto Systems: |
Document: AIRBAG, REPLACEMENT INTERVAL CHANGE - REVISED Vehicle: 1998 Audi A8 Quattro 4.2 V8 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 1998 Audi A8 Quattro AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1998 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 1998 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 1998 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 1998 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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