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1998 Audi A6 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 A6 Quattro AUTOMOBILES
Audi -> Automatic Temperature Control System Diagnosis & Testing -> A/C Control Head Coding
Vehicle: 1998 Audi A6 Quattro 2.8 V6 GAS
This procedure has been modified by a Technical Service Bulletin.
In order to be properly coded, models with a Nippondenso A/C compressor, require a control head with a code of "C" or higher.
The control head micro processor requires that a code be stored into memory to allow the automatic A/C control system to properly interface with the powertrain control system.
If a control head has been replaced, memory lost or as directed during diagnostic and testing procedures the coding may need to be checked or re-coded. A control head display that ...
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BRAKE SERVICE PROCEDURES FOR 1998 Audi A6 Quattro AUTOMOBILES
Disc Brakes -> Teves Single Piston Front Brakes -> Precautions -> Battery Ground Cable -> Radio Coded Anti-Theft System
Vehicle: 1998 Audi A6 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 A6 Quattro AUTOMOBILES
Audi -> Component Locations -> 1991-05 2.8L V6
Vehicle: 1998 Audi A6 Quattro 2.8 V6 GAS
Refer to Fig...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1998 Audi A6 Quattro AUTOMOBILES
CV AXLE SHAFT, Replace
Vehicle: 1998 Audi A6 Quattro 2.8 V6 GAS
- Remove wheel cover and drive axle bolt in hub.
- Pull speed sensor slightly out of housing, then remove drive axle flange to transaxle mounting bolts.
- Press drive axle upward toward front of ve...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1998 Audi A6 Quattro AUTOMOBILES
Starter, Replace
Vehicle: 1998 Audi A6 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 A6 Quattro AUTOMOBILES
Cabin Air Filter Service -> Audi -> 1998-2004 A6, Allroad, RS6, S6 & 2000-06 TT
Vehicle: 1998 Audi A6 Quattro 2.8 V6 GAS
On 1998-2000 models, the cabin air filter should be replaced every 15,000 miles.
On 2001-03 models, the cabin air filter should be replaced every 20,000 miles.
On 2004-07 models, the cabin air filter should be replaced at 15,000 miles, then every 20,000 miles.
- Open the hood.
- Remove the plenum chamber cover.
- Release the cabin air filter retaining tab ca...
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MAINTENANCE LAMP RESET PROCEDURES FOR 1998 Audi A6 Quattro AUTOMOBILES
Audi -> Service Indicator Lamp -> 1998-2004 -> Less Scan Tool -> With Scan Tool
Vehicle: 1998 Audi A6 Quattro 2.8 V6 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 1998 Audi A6 Quattro AUTOMOBILES
Coolant Hose, Replace -> Lower -> Upper
Vehicle: 1998 Audi A6 Quattro 2.8 V6 GAS
Lower
- Drain coolant into a suitable container.
- Reposition hose clamp at radiator and remove hose.
- Reposition hose clamp at connection for thermostat and remove hose.
- Remove hose from vehicle.
- Reverse proce...
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SERPENTINE BELT SERVICE PROCEDURES FOR 1998 Audi A6 Quattro AUTOMOBILES
Serpentine Drive Belt, Replace -> Version A -> Version B
Vehicle: 1998 Audi A6 Quattro 2.8 V6 GAS
Mark direction of belt travel before removing, using a crayon or marker. Reinstalling a used belt in opposite direction could damage belt.
Version A
- Remove drive belt guard.
- Loosen drive belt tensioner using 15mm wrench and drift 3204 or equivalent,...
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COMPONENT LOCATION DIAGRAMS FOR 1998 Audi A6 Quattro AUTOMOBILES
Component location diagrams for most 1998 Audi A6 Quattro cars and light trucks sold in the U.S. from 1990+.
Fuel & Emissions Systems Component Locations Diagram for 1998 Audi A6 Quattro 2.8 V6 GAS Components on diagram: |
Transmission Control Component Locations Diagram for 1998 Audi A6 Quattro 2.8 V6 GAS Components on diagram: |
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WIRING DIAGRAMS FOR 1998 Audi A6 Quattro AUTOMOBILES
OEM drawn wiring diagrams for most 1998 Audi A6 Quattro cars and light trucks sold in the U.S.
1998 Audi A6 Quattro 2.8 V6 GAS Wiring Diagram Components on diagram: |
1998 Audi A6 Quattro 2.8 V6 GAS Wiring Diagram Components on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 1998 Audi A6 Quattro AUTOMOBILES
OEM TSB listings for most 1998 Audi A6 Quattro cars and light trucks sold in the U.S. from 1985+.
Document: AIRBAG / PYROTECHNIC SAFETY BELT DEPLOYMENT INQUIRIES - REVISED Vehicle: 1998 Audi A6 Quattro 2.8 V6 GAS Auto Systems: |
Document: AIRBAG, REPLACEMENT INTERVAL CHANGE - REVISED Vehicle: 1998 Audi A6 Quattro 2.8 V6 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 1998 Audi A6 Quattro AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1998 Audi A6 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 A6 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 A6 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 A6 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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