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1998 Audi A4 Quattro CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Audi REPAIR SHOPS DON'T WANT YOU TO KNOW
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- 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 1998 Audi A4 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 A4 Quattro automobile. Try the Automotix DIY solution today!
A/C & HEATER SERVICE PROCEDURES FOR 1998 Audi A4 Quattro AUTOMOBILES
Computer Relearn Procedures -> Audi -> 1995-97 -> 1998-2004 -> OBD -> OBD II
Vehicle: 1998 Audi A4 Quattro 2.8 V6 GAS
OBD
Whenever the ECM is replaced, the new ECM will need to be " Coded." Use the following procedure to "Code" the ECM.
- Connect VAG 1551, or equivalent scan tool to the diagnostic connector.
- Operate scan tool until display shows "Select Function XX."
- Press scan buttons 0 and 7 to select "Code Control Module" function, then press "Q" button to confirm input.
- "Code Control Module" and " Enter Code Number" should appear on the display.
- Enter correct code number as follows:
- Code 0003: Vehicles with manual transmission.
- Code 0004: Vehi...
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BRAKE SERVICE PROCEDURES FOR 1998 Audi A4 Quattro AUTOMOBILES
Disc Brakes -> Single Piston Rear Disc Brakes -> Precautions -> Battery Ground Cable -> Radio Coded Anti-Theft System
Vehicle: 1998 Audi A4 Quattro 1.8 L4 GAS
Radio Coded Anti-Theft System
Prior to disconnecting the battery or removing the audio system, obtain the security code from the vehicle operator. Refer t...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 1998 Audi A4 Quattro AUTOMOBILES
Audi -> Fuel Filter Scheduled Maintenance -> All 1989-05 -> Normal Service -> Severe Service
Vehicle: 1998 Audi A4 Quattro 1.8 L4 GAS
Normal Service
Service as re...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1998 Audi A4 Quattro AUTOMOBILES
CV AXLE SHAFT, Replace
Vehicle: 1998 Audi A4 Quattro 2.8 V6 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 ar...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1998 Audi A4 Quattro AUTOMOBILES
Starter, Replace
Vehicle: 1998 Audi A4 Quattro Avant 2.8 V6 GAS
- Remove alternator assembly.
- Disconnect starter motor electrical connectors.
- Raise and support vehicle.
- On models equipped with automatic transaxle, proceed as follows:
- Remove righthand front wheel as required.
- Remove starter motor to transaxle housing attaching bolts.
- Re...
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CABIN AIR FILTER LOCATIONS & REPLACEMENT PROCEDURES FOR 1998 Audi A4 Quattro AUTOMOBILES
Cabin Air Filter Service -> Audi -> 1998 A4 Quattro
Vehicle: 1998 Audi A4 Quattro Avant 2.8 V6 GAS
The cabin air filter should be replaced every 15,000 miles.
- Open the hood.
- Remove the air intake plenum cover.
- Release the cabin air filter element from the filter...
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MAINTENANCE LAMP RESET PROCEDURES FOR 1998 Audi A4 Quattro AUTOMOBILES
Audi -> Check Engine Lamp -> With OBD II
Vehicle: 1998 Audi A4 Quattro Avant 2.8 V6 GAS
The Check Engine lamp should illuminate when the ignition switch is placed in the On position to indicate the lamp is operational. After the engine has been started, the warning lamp should go off. If warning lamp com...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1998 Audi A4 Quattro AUTOMOBILES
Coolant Hose, Replace -> Lower -> Upper
Vehicle: 1998 Audi A4 Quattro Avant 2.8 V6 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 1998 Audi A4 Quattro AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 1998 Audi A4 Quattro Avant 2.8 V6 GAS
Risk of destroying due to reversed running direction on a used drive belt. Before removing drive belt, marking running direction with chalk or felt-tip pen for reinstallation later.
- Remove sound insulation panel.
- Loosen bolts for drive belt tensioner for A/C compressor.
- Move drive belt tensioner in a ...
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COMPONENT LOCATION DIAGRAMS FOR 1998 Audi A4 Quattro AUTOMOBILES
Component location diagrams for most 1998 Audi A4 Quattro cars and light trucks sold in the U.S. from 1990+.
 Audio System Components Locations Diagram for 1998 Audi A4 Quattro 1.8 L4 GASComponents on diagram: |
 Fuel & Emissions Systems Engine Compartment Components Locations Diagram for 1998 Audi A4 Quattro 1.8 L4 GASComponents on diagram: |
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WIRING DIAGRAMS FOR 1998 Audi A4 Quattro AUTOMOBILES
OEM drawn wiring diagrams for most 1998 Audi A4 Quattro cars and light trucks sold in the U.S.
 1998 Audi A4 Quattro 1.8 L4 GAS Wiring DiagramComponents on diagram: |
 1998 Audi A4 Quattro 2.8 V6 GAS Wiring DiagramComponents on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 1998 Audi A4 Quattro AUTOMOBILES
OEM TSB listings for most 1998 Audi A4 Quattro cars and light trucks sold in the U.S. from 1985+.
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Document: LATCH SYSTEM, INSTALLING/RETROFITTING - REVISED Vehicle: 1998 Audi A4 Quattro 1.8 L4 GAS Auto Systems: |
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Document: AIRBAG / PYROTECHNIC SAFETY BELT DEPLOYMENT INQUIRIES - REVISED Vehicle: 1998 Audi A4 Quattro 1.8 L4 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 1998 Audi A4 Quattro AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1998 Audi A4 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 A4 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 A4 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 A4 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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