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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 -> Component Replacement & Adjustment -> Cooling Fans -> A4, A6 & A8 -> Cabriolet -> Coolant Temperature Sensor -> Description -> Diagnosis & testing -> Refrigerant High Pressure Sensor
Vehicle: 1998 Audi A6 Quattro 2.8 V6 GAS
Description
A4, A6 & A8
A4 models use a single electric two-speed cooling fan. A6 and A8 models use dual two speed cooling fans. The cooling fan speeds are controlled by a dual element water temperature sensor and a refrigerant high pressure sensor. These sensors control relays which route electric current through resistors or directly to the fan motor to control speed.
- Low speed is controlled by only low temperature side of coolant temperature sensor.
- Second speed is controlled by either high temperature section of coolant temperature s...
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BRAKE SERVICE PROCEDURES FOR 1998 Audi A6 Quattro AUTOMOBILES
Disc Brakes -> Single Piston Rear Disc Brakes -> Brake Pad Service -> Except TT -> TT
Vehicle: 1998 Audi A6 Quattro 2.8 V6 GAS
Except TT
- Raise and support vehicle, then remove wheel assemblies.
- If brake pads are to be used again, mark installed positions for installation reference.
- Remove caliper housing to carrier mounting bolts, then the caliper housing, Fig. .
- Remove brake pads from carrier.
- Extract part of brake fluid from reservoir using a suitable bleeder bottle, then install piston using installation tool No. 3272, or equivalent.
- Install brake pads, then the caliper housing and tighten to specifications.
- Install wheel assemblies and lower vehicle.
- On A4 and A8 models, depress brake pedal firmly several...
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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 -> Auto-Check Indicator System ->
Vehicle: 1998 Audi A6 Quattro 2.8 V6 GAS
The auto-check system will monitor certain vehicle systems when the ignition switch is placed in the On position and vehicle is operated. When all monitored systems are functioning properly, the system display will indicate "OK" for a few seconds after the ignition switch is placed in the On position.
This system monitors brake fluid level and hydraulic pressure, engine oil pressure, coolant temperature and level, brake pad wear, headlamps and tail lamps, battery voltage, washer fluid level and fuel level.
When the auto-check yellow or r...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1998 Audi A6 Quattro AUTOMOBILES
Heater Hose, Replace -> Inlet -> Outlet
Vehicle: 1998 Audi A6 Quattro 2.8 V6 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 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+.
Windows, Door Locks, Shift & Latch Actuators Diagram for 1998 Audi A6 Quattro 2.8 V6 GAS Components on diagram: |
Control Module 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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