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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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- 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 A4 Quattro AUTOMOBILES
Electrical Symbol & Wire Color Code Identification -> Electrical Symbol Identification -> Imported Vehicles
Vehicle: 1998 Audi A4 Quattro 1.8 L4 GAS
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BRAKE SERVICE PROCEDURES FOR 1998 Audi A4 Quattro AUTOMOBILES
Disc Brakes -> Teves Single Piston Front Brakes -> Precautions -> Battery Ground Cable -> Radio Coded Anti-Theft System
Vehicle: 1998 Audi A4 Quattro 2.8 V6 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 Replacement -> Gasoline Engines -> Removal & Installation
Vehicle: 1998 Audi A4 Quattro 1.8 L4 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 1998 Audi A4 Quattro AUTOMOBILES
DRIVESHAFT, Replace
Vehicle: 1998 Audi A4 Quattro 1.8 L4 GAS
- Remove cap from wheel using a suitable removal tool then loosen lug nuts.
- Remove axle bolt and washer Fig. . Remove and install axle bolt only with tires on ground. Do not move vehicle without driveshaft or outer constant velocity joint installed.
- Raise and support vehicle, then remove wheel.
- Pull speed sensor out of axle housing slightly.
- Loosen but do not remove lower control arm bolts at subframe.
- Remove lower strut bolt from lower control arm.
- Remove bolts from driveshaft flange at transaxle.
- Remove lower mounting bolt for strut.
- Remove bolts retaining knuckle to upper control a...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1998 Audi A4 Quattro AUTOMOBILES
Starter, Replace
Vehicle: 1998 Audi A4 Quattro 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 -> Electronic Ignition Warning Lamp ->
Vehicle: 1998 Audi A4 Quattro 1.8 L4 GAS
The electronic ignition system warning lamp will be illuminated when the ignition switch is placed in the On position. After the engine is started, the lamp should go off. If the lamp lights during engine operation, a knocking condition is indicated or a problem has arisen in the ignition sys...
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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 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 Avant 2.8 V6 GAS Components on diagram: |
Fuel & Emissions Systems Engine Compartment Components Locations Diagram for 1998 Audi A4 Quattro 2.8 V6 GAS Components 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 2.8 V6 GAS Wiring Diagram Components on diagram: |
1998 Audi A4 Quattro 1.8 L4 GAS Wiring Diagram Components 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+.
Document: LATCH SYSTEM, INSTALLING/RETROFITTING - REVISED Vehicle: 1998 Audi A4 Quattro 1.8 L4 GAS Auto Systems: |
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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