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Audi 80 Quattro CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Audi REPAIR SHOPS DON'T WANT YOU TO KNOW
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Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about Audi 80 Quattro 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 80 Quattro automobile. Try the Automotix DIY solution today!
A/C & HEATER SERVICE PROCEDURES FOR Audi 80 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 80 Quattro cars and light trucks from 1990+
Audi -> Automatic Temperature Control System Diagnosis & Testing -> A/C SYSTEM TROUBLESHOOTING -> A/C CONTROL HEAD ALWAYS DARK -> A/C CONTROL HEAD ILLUMINATION CANNOT BE REGULATED -> A/C CONTROL HEAD MEMORY DISPLAY, CHECKING -> A/C CONTROL HEAD MEMORY LOSS, CHECKING -> A/C COOLING PERFORMANCE, CHECKING -> A/C FRESH AIR BLOWER ALWAYS RUNS (OFF MODE) -> A/C HIGH PRESSURE SWITCHES (F118 & F23), CHECKING -> A/C REFRIGERANT LOW-PRESSURE SWITCH, CHECKING -> COMPRESSOR DOES NOT RUN IN AUTO, BI-LEV & DEF MODES -> COMPRESSOR RUNS IN ECON & OFF MODES -> DIGITAL CLIMATE CONTROL, QUICK CHECK -> ELECTRICAL SYSTEM VOLTAGE DISPLAY, CHECKING -> ELECTRONIC THERMOSWITCH (MULTI-FUNCTION TEMPERATURE SENSOR), CHECKING -> ENGINE COOLANT TEMPERATURE SENSOR, CHECKING -> ERROR DISPLAY, MEMORY CHANNEL 1 -> ERRORS IN AREA OF CLIMATE CONTROL REGULATION -> FAULT MEMORY CANNOT BE INITIATED/OUTSIDE TEMPERATURE CANNOT BE DISPLAYED -> FRESH AIR BLOWER DOES NOT RUN (AUTO, BI-LEV, DEF OR ECON MODES) -> FRESH AIR BLOWER SPEED CANNOT BE REGULATED -> IDLE SPEED INCREASE (A/C ON) & RPM INCREASE (COMPRESSOR ON), CHECKING -> INSIDE TEMPERATURE SENSORS (G56 & G86), CHECKING -> KICK-DOWN SWITCH, CHECKING -> MEMORY DISPLAY CHANNEL 17, CHECKING -> MEMORY DISPLAY CHANNEL 18, CHECKING -> MEMORY DISPLAY CHANNEL 7, CHECKING -> MEMORY DISPLAY, CHANNELS 1-22 -> OUTSIDE TEMPERATURE SENSORS (G57 & G17), CHECKING -> RADIATOR COOLING FAN ALWAYS RUNS AT FIRST SPEED (ECON & OFF MODES) -> RADIATOR COOLING FAN DOES NOT RUN AT FIRST SPEED (AUTO, BI-LEV & DEF MODES) -> SPEED DEPENDENT BLOWER CONTROL, CHECKING -> TEMPERATURE REGULATING FLAP SERVO MOTOR (w/FEEDBACK POTENTIOMETER), CHECKING -> VACUUM UNITS & FLAP POSITIONS, CHECKING
Vehicle: 1992 Audi 80 Quattro 2.3 L5 GAS
DIGITAL CLIMATE CONTROL, QUICK CHECK
Test steps must be followed in their entirety and in sequence.
- Turn ignition switch to On position, then set mode to OFF position and observe that OFF LED lamp lights.
- If OFF LED lamp does not light up, refer to "A/C Control Head Always Dark."
- If OFF LED lamp lights up, press OUTSIDE TEMP button and observe that outside temperature is displayed.
- If outside temperature is not displayed, refer to "Outside Temperature Cannot Be Called Up."
- If outside temperature is displayed, observe that outside ...
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BRAKE SERVICE PROCEDURES FOR Audi 80 Quattro AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported Audi 80 Quattro cars and light trucks from 1990+.
AUDI, POWER BRAKE UNITS -> BRAKE BOOSTER, CHECKING -> 80/90
Vehicle: 1990 Audi 80 Quattro 2.3 L5 GAS
80/90
- Depress brake pedal firmly approximately 20 times with engine Off.
- Depress brake...
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FUEL FILTER REPLACEMENT PROCEDURES FOR Audi 80 Quattro AUTOMOBILES
Fuel filter replacement procedures with corresponding images for most domestic and imported Audi 80 Quattro cars and light trucks sold in the U.S. for 1980+.
Audi -> Fuel Filter Replacement -> Gasoline Engines -> Removal & Installation
Vehicle: 1991 Audi 80 Quattro 2.3 L5 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 Audi 80 Quattro AUTOMOBILES
Includes CV axle, universal joint, and driveline replacement, for domestic and imported Audi 80 Quattro cars and light trucks from 1990+.
CV AXLE SHAFT, Replace -> Less Attached Wheel Bearing Housing -> W/Attached Wheel Bearing Housing
Vehicle: 1990 Audi 80 Quattro 2.3 L5 GAS
W/Attached Wheel Bearing Housing
- Loosen wheel bolts.
- Remove wheel hub to axle shaft bolt.
- Raise and support vehicle, then remove washer and wheel.
- Remove axle shaft flange, nut from link rod, and control arm to stabilizer bar to subframe mounting bolts.
- Push control arm downward, then press axle shaft out of hub using a suitable puller.
- Reverse procedure to install, noting the following:
- Ensure splines on stub axle and wheel hub are free of oil, grease and old locking compound.
- Apply a .2 inch (5mm) band of D6 locking compound around end of outer CV joint splines, then install ax...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR Audi 80 Quattro AUTOMOBILES
Includes starter and alternator replacement procedures for domestic and imported Audi 80 Quattro cars and light trucks from 1990+.
Starter, Replace
Vehicle: 1991 Audi 80 Quattro 2.3 L5 GAS
- Obtain audio coded anti-theft code, then disconnect battery ground cable.
- Disconnect electrical leads from starter solenoid.
- Remove starter mounting bolts, then the...
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MAINTENANCE LAMP RESET PROCEDURES FOR Audi 80 Quattro AUTOMOBILES
Maintenance lamp reset procedures with corresponding images for most domestic and imported Audi 80 Quattro cars and light trucks sold in the U.S. from 1990+.
Audi -> Electronic Ignition Warning Lamp ->
Vehicle: 1990 Audi 80 Quattro 2.3 L5 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 Audi 80 Quattro AUTOMOBILES
Includes radiator, cooling and heater hose replacement procedures for domestic and imported Audi 80 Quattro cars and light trucks from 1990+
Heater Hose, Replace -> Inlet -> Outlet
Vehicle: 1990 Audi 80 Quattro 2.3 L5 GAS
Inlet
- Drain coolant into a suitable container.
- Reposition hose clamp at heater core and remove hose.
- Reposition hose clamp at union and remove hose.
- Remove hose from vehicle.
- Reverse procedure to in...
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COMPONENT LOCATION DIAGRAMS FOR Audi 80 Quattro AUTOMOBILES
Component location diagrams for most Audi 80 Quattro cars and light trucks sold in the U.S. from 1990+.
 Luggage Compartment Components Diagram for 1990 Audi 80 Quattro 2.3 L5 GASComponents on diagram: |
 Engine Compartment Components Diagram for 1990 Audi 80 Quattro 2.3 L5 GASComponents on diagram: |
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WIRING DIAGRAMS FOR Audi 80 Quattro AUTOMOBILES
OEM drawn wiring diagrams for most Audi 80 Quattro cars and light trucks sold in the U.S.
 1992 Audi 80 Quattro 2.3 L5 GAS Wiring DiagramComponents on diagram: |
 1991 Audi 80 Quattro 2.3 L5 GAS Wiring DiagramComponents on diagram: |
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TECHNICAL SERVICE BULLETINS FOR Audi 80 Quattro AUTOMOBILES
OEM TSB listings for most Audi 80 Quattro cars and light trucks sold in the U.S. from 1985+.
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Document: FUEL PUMP/ELEC - INTERMITTENT STALL/LONG CRANK TIME Vehicle: 1989 Audi 80 Quattro 2.3 L5 GAS Symptoms: |
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Document: WINDSHIELD AREA SHORTCOMINGS - REPORTING Vehicle: 1991 Audi 80 Quattro 2.3 L5 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR Audi 80 Quattro AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most Audi 80 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 80 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 80 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 80 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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