Audi Coupe Quattro REPAIR MANUAL -- HOW TO FIX YOUR CAR OR TRUCK

A/C & HEATER SERVICE PROCEDURES FOR Audi Coupe Quattro AUTOMOBILES

Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported Audi Coupe Quattro cars and light trucks from 1990+

Air Bag System Precautions -> Audi -> Arming -> Air Bag II & III System -> Air Bag V System
Vehicle: 1991 Audi Coupe Quattro 20V 2.3 L5 GAS

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BRAKE SERVICE PROCEDURES FOR Audi Coupe Quattro AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported Audi Coupe Quattro cars and light trucks from 1990+.

AUDI, ANTI-LOCK BRAKES -> TROUBLESHOOTING -> ABS RETURN PUMP DOES NOT RUN, RELAY GOOD, TESTER IN POSITION 3 -> ABS RETURN PUMP DOES NOT RUN, TESTER IN POSITION 3 -> LED 1 & 3 DO NOT LIGHT, TESTER IN POSITION 1 -> LED 13 DOES NOT LIGHT -> LED 19 DOES NOT LIGHT -> LED 2 DOES NOT LIGHT -> LED 35 DOES NOT LIGHT -> LED 4 DOES NOT LIGHT, TESTER IN POSITION 1 -> LED 4, 2, 35, 18 & 19 DO NOT LIGHT, TESTER IN POSITION 1 -> LED FOR ALTERNATOR DOES NOT GO OUT WHEN ENGINE STARTS -> LED FOR ALTERNATOR DOES NOT LIGHT, TESTER IN POSITION 2 -> LED FOR BRAKES DOES NOT GO OUT WHEN BRAKE PEDAL IS DEPRESSED -> LED FOR BRAKES DOES NOT LIGHT -> NO RESPONSE FROM SELECTED SENSOR, TESTER IN POSITION 6 -> POWER SUPPLY -> SENSOR SIGNAL ON METER BELOW MINIMUM VALUE -> Solenoid Valve Relay Check -> WRONG SOLENOID VALVE OPERATES, TESTER IN POSITION 5
Vehicle: 1990 Audi Coupe Quattro 20V 2.3 L5 GAS

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FUEL FILTER REPLACEMENT PROCEDURES FOR Audi Coupe Quattro AUTOMOBILES

Fuel filter replacement procedures with corresponding images for most domestic and imported Audi Coupe Quattro cars and light trucks sold in the U.S. for 1980+.

Audi -> Fuel Filter Scheduled Maintenance -> All 1989-05 -> Normal Service -> Severe Service
Vehicle: 1990 Audi Coupe Quattro 20V 2.3 L5 GAS

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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR Audi Coupe Quattro AUTOMOBILES

Includes CV axle, universal joint, and driveline replacement, for domestic and imported Audi Coupe Quattro cars and light trucks from 1990+.

CV AXLE SHAFT, Replace -> Less Attached Wheel Bearing Housing -> W/Attached Wheel Bearing Housing
Vehicle: 1990 Audi Coupe Quattro 20V 2.3 L5 GAS

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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR Audi Coupe Quattro AUTOMOBILES

Includes starter and alternator replacement procedures for domestic and imported Audi Coupe Quattro cars and light trucks from 1990+.

Alternator, Replace
Vehicle: 1990 Audi Coupe Quattro 20V 2.3 L5 GAS

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MAINTENANCE LAMP RESET PROCEDURES FOR Audi Coupe Quattro AUTOMOBILES

Maintenance lamp reset procedures with corresponding images for most domestic and imported Audi Coupe Quattro cars and light trucks sold in the U.S. from 1990+.

Audi -> Brake Pad Wear Indicator Lamp ->
Vehicle: 1991 Audi Coupe Quattro 20V 2.3 L5 GAS

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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR Audi Coupe Quattro AUTOMOBILES

Includes radiator, cooling and heater hose replacement procedures for domestic and imported Audi Coupe Quattro cars and light trucks from 1990+

Heater Hose, Replace -> Inlet -> Outlet
Vehicle: 1990 Audi Coupe Quattro 20V 2.3 L5 GAS

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COMPONENT LOCATION DIAGRAMS FOR Audi Coupe Quattro AUTOMOBILES

Component location diagrams for most Audi Coupe Quattro cars and light trucks sold in the U.S. from 1990+.

Fuse/Relay Panel Diagram for 1990 Audi Coupe Quattro 20V 2.3 L5 GAS Components on diagram: Load Reduction Relay Horn Relay Fog Light Relay Fuel Pump Relay Headlight Washer System Relay

Speed Sensor Location Diagram for 1990 Audi Coupe Quattro 20V 2.3 L5 GAS Components on diagram: Speed Sensor

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WIRING DIAGRAMS FOR Audi Coupe Quattro AUTOMOBILES

OEM drawn wiring diagrams for most Audi Coupe Quattro cars and light trucks sold in the U.S.

1990 Audi Coupe Quattro 20V 2.3 L5 GAS Wiring Diagram Components on diagram: RH Headlamp LH Headlamp Brake Lamp Switch High Mounted Brake Lamp

1990 Audi Coupe Quattro 20V 2.3 L5 GAS Wiring Diagram Components on diagram: RH Front Window Switch RH Rear Window Switch RH Front Window Motor RH Rear Window Motor

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TECHNICAL SERVICE BULLETINS FOR Audi Coupe Quattro AUTOMOBILES

OEM TSB listings for most Audi Coupe Quattro cars and light trucks sold in the U.S. from 1985+.

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COMPONENT/PARTS SPECIFICATIONS FOR Audi Coupe Quattro AUTOMOBILES

BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most Audi Coupe 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 Audi Coupe 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 Audi Coupe 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 Audi Coupe 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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