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1998 Audi A4 CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Audi REPAIR SHOPS DON'T WANT YOU TO KNOW
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- Component Locations
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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 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 automobile. Try the Automotix DIY solution today!
A/C & HEATER SERVICE PROCEDURES FOR 1998 Audi A4 AUTOMOBILES
Electrical Symbol & Wire Color Code Identification -> Electrical Symbol Identification -> Imported Vehicles
Vehicle: 1998 Audi A4 Avant 2.8 V6 GAS
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BRAKE SERVICE PROCEDURES FOR 1998 Audi A4 AUTOMOBILES
Disc Brakes -> Dual Piston Front Brakes -> Caliper Service -> Overhaul
Vehicle: 1998 Audi A4 1.8 L4 GAS
Overhaul
Refer to Figs. and when servicing front disc brake calipers, noting the following:
- Force piston out brake caliper with compressed air, Fig. . Apply air pressure gradually to guard against sudden piston release. Place a suitable wooden block into recess of brake caliper to prevent piston damage.
- Remove caliper piston seal using a suitable screwdriver, Fig. .
- Install piston as...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 1998 Audi A4 AUTOMOBILES
Audi -> Component Locations -> 1991-05 2.8L V6
Vehicle: 1998 Audi A4 Avant 2.8 V6 GAS
Refer to Fig...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1998 Audi A4 AUTOMOBILES
DRIVESHAFT, Replace
Vehicle: 1998 Audi A4 2.8 V6 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 AUTOMOBILES
Alternator, Replace
Vehicle: 1998 Audi A4 Avant 2.8 V6 GAS
- Obtain radio anti-theft protection code.
- Remove serpentine drive belt, Fig. , then disconnect electrical connections from alternator.
- Remove alternator mounting bolts an...
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CABIN AIR FILTER LOCATIONS & REPLACEMENT PROCEDURES FOR 1998 Audi A4 AUTOMOBILES
Cabin Air Filter Service -> Audi -> 1996-2008 A4, 1998 Cabriolet, 2002-08 S4 & 2007-09 RS4
Vehicle: 1998 Audi A4 2.8 V6 GAS
On 1996-2003 models, the cabin air filter should be replaced every 20,000 miles.
On 2004-09 models, the cabin air filter should be replaced at 15,000 miles, then every 20,000 miles.
- Open the hood.
- Remove the righthand side air intake pl...
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MAINTENANCE LAMP RESET PROCEDURES FOR 1998 Audi A4 AUTOMOBILES
Audi -> Brake Pad Wear Indicator Lamp ->
Vehicle: 1998 Audi A4 Avant 2.8 V6 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 A4 AUTOMOBILES
Heater Hose, Replace -> Inlet -> Outlet
Vehicle: 1998 Audi A4 2.8 V6 GAS
Inlet
- Drain coolant into a suitable container.
- Reposition hose clamp at heater core and remove hose.
- Reposition hose clamp at coolant line and remove hose.
- Remove hose from vehicle.
- Reverse procedure to i...
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SERPENTINE BELT SERVICE PROCEDURES FOR 1998 Audi A4 AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 1998 Audi A4 1.8 L4 GAS
- Put lock carrier into service position.
- Mark direction of engine rotation on belt.
- Slacken belt by turning tensioner in directi...
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COMPONENT LOCATION DIAGRAMS FOR 1998 Audi A4 AUTOMOBILES
Component location diagrams for most 1998 Audi A4 cars and light trucks sold in the U.S. from 1990+.
 I/P & Console Component Locations Diagram for 1998 Audi A4 Avant 2.8 V6 GASComponents on diagram: |
 Fuel & Emissions Systems Engine Compartment Components Locations Diagram for 1998 Audi A4 Avant 2.8 V6 GASComponents on diagram: |
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WIRING DIAGRAMS FOR 1998 Audi A4 AUTOMOBILES
OEM drawn wiring diagrams for most 1998 Audi A4 cars and light trucks sold in the U.S.
 1998 Audi A4 1.8 L4 GAS Wiring DiagramComponents on diagram: |
 1998 Audi A4 Avant 2.8 V6 GAS Wiring DiagramComponents on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 1998 Audi A4 AUTOMOBILES
OEM TSB listings for most 1998 Audi A4 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 1.8 L4 GAS Auto Systems: |
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Document: AIRBAG / PYROTECHNIC SAFETY BELT DEPLOYMENT INQUIRIES - REVISED Vehicle: 1998 Audi A4 1.8 L4 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 1998 Audi A4 AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1998 Audi A4 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 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 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 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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