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Audi 80 CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Audi REPAIR SHOPS DON'T WANT YOU TO KNOW
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A/C & HEATER SERVICE PROCEDURES FOR Audi 80 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 cars and light trucks from 1990+
Audi -> Wiring Diagrams -> Automatic Temperature Control System
Vehicle: 1992 Audi 80 2.3 L5 GAS
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BRAKE SERVICE PROCEDURES FOR Audi 80 AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported Audi 80 cars and light trucks from 1990+.
AUDI, POWER BRAKE UNITS -> BRAKE BOOSTER REPLACEMENT -> 80/90
Vehicle: 1990 Audi 80 2.0 L4 GAS
80/90
- Remove master cylinder as previously described.
- Disconnect vacuum line(s) from boost...
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FUEL FILTER REPLACEMENT PROCEDURES FOR Audi 80 AUTOMOBILES
Fuel filter replacement procedures with corresponding images for most domestic and imported Audi 80 cars and light trucks sold in the U.S. for 1980+.
Audi -> Fuel Filter Replacement -> Gasoline Engines -> Removal & Installation
Vehicle: 1991 Audi 80 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 AUTOMOBILES
Includes CV axle, universal joint, and driveline replacement, for domestic and imported Audi 80 cars and light trucks from 1990+.
CV AXLE SHAFT, Replace -> Less Attached Wheel Bearing Housing -> W/Attached Wheel Bearing Housing
Vehicle: 1992 Audi 80 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 AUTOMOBILES
Includes starter and alternator replacement procedures for domestic and imported Audi 80 cars and light trucks from 1990+.
Alternator, Replace
Vehicle: 1991 Audi 80 2.3 L5 GAS
- Disconnect battery ground cable at battery.
- Relieve tension on drive belt and remove drive belt.
- Remove electrical connections from alternator.
- Re...
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MAINTENANCE LAMP RESET PROCEDURES FOR Audi 80 AUTOMOBILES
Maintenance lamp reset procedures with corresponding images for most domestic and imported Audi 80 cars and light trucks sold in the U.S. from 1990+.
Audi -> Air Bag Warning Lamp ->
Vehicle: 1991 Audi 80 2.3 L5 GAS
If the Air Bag warning lamp lights and stays on, diagnosis and ...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR Audi 80 AUTOMOBILES
Includes radiator, cooling and heater hose replacement procedures for domestic and imported Audi 80 cars and light trucks from 1990+
Coolant Hose, Replace -> Lower -> Upper
Vehicle: 1991 Audi 80 2.3 L5 GAS
Lower
- Drain coolant into a suitable container.
- Reposition hose clamp at radiator and remove hose.
- Reposition hose clamp at thermostat and remove hose.
- Remove hose from vehicle.
- Reverse procedure to ...
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COMPONENT LOCATION DIAGRAMS FOR Audi 80 AUTOMOBILES
Component location diagrams for most Audi 80 cars and light trucks sold in the U.S. from 1990+.
![]() Components on diagram: |
![]() Components on diagram: |
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WIRING DIAGRAMS FOR Audi 80 AUTOMOBILES
OEM drawn wiring diagrams for most Audi 80 cars and light trucks sold in the U.S.
![]() Components on diagram: |
![]() Components on diagram: |
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TECHNICAL SERVICE BULLETINS FOR Audi 80 AUTOMOBILES
OEM TSB listings for most Audi 80 cars and light trucks sold in the U.S. from 1985+.
Document: BRAKE MASTER CYLINDER - LEAKING AT RUBBER PLUG Vehicle: 1990 Audi 80 2.0 L4 GAS Symptoms: |
Document: WARRANTY - WIN SYSTEM CHANGES Vehicle: 1992 Audi 80 2.3 L5 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR Audi 80 AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most Audi 80 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 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 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 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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