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Audi 90 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 90 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 90 automobile. Try the Automotix DIY solution today!
A/C & HEATER SERVICE PROCEDURES FOR Audi 90 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 90 cars and light trucks from 1990+
Imported Cars & Light Trucks & Vans -> 1993-95 -> Precautions -> Cleanliness -> General Service -> Product Compatibility -> R-12 Systems -> R-134a Systems -> Safety
Vehicle: 1995 Audi 90 2.8 V6 GAS
Product Compatibility
Before replenishing refrigerant oil, ensure product compatibility with the system being serviced. Refer to "A/C Data" for specifications.
Safety
R-12 Systems
The Freon refrigerant used in car air conditioners is also known as R-12. It is colorless and odorless both as a gas and a liquid. Since it boils (vaporizes) at -21.7°F, it will usually be in a vapor state when being handled in a repair shop. But if a portion of the liquid coolant should come in contact with the hands or face, note that its temperature momentarily will be at least...
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BRAKE SERVICE PROCEDURES FOR Audi 90 AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported Audi 90 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: 1991 Audi 90 2.3 L5 GAS
The Bosch ABS 2 LED-Tester or an equivalent Must be used during test procedures. Connect tester per manufacturers instructions.
POWER SUPPLY
- Check battery for full charge.
- Check that fuses 3, 12 and anti-lock brake power supply relay fuses are satisfactory. The anti-lock brake power supply relay fuse is located on top of the power supply relay.
- Check for continuity between ABS control unit connector terminal 13 and ground, at battery ground cable. Fig. .
- Turn ignition switch to the Off position.
- Check for continuity between ABS control unit connector terminal 10 and ground.
- Check for b...
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FUEL FILTER REPLACEMENT PROCEDURES FOR Audi 90 AUTOMOBILES
Fuel filter replacement procedures with corresponding images for most domestic and imported Audi 90 cars and light trucks sold in the U.S. for 1980+.
Audi -> Fuel Filter Scheduled Maintenance -> All 1989-05 -> Normal Service -> Severe Service
Vehicle: 1994 Audi 90 CS 2.8 V6 GAS
Normal Service
Service as re...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR Audi 90 AUTOMOBILES
Includes CV axle, universal joint, and driveline replacement, for domestic and imported Audi 90 cars and light trucks from 1990+.
CV AXLE SHAFT, Replace -> Attached Wheel Bearing Housing -> Less Attached Wheel Bearing Housing
Vehicle: 1995 Audi 90 2.8 V6 GAS
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 axle...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR Audi 90 AUTOMOBILES
Includes starter and alternator replacement procedures for domestic and imported Audi 90 cars and light trucks from 1990+.
Starter, Replace
Vehicle: 1995 Audi 90 Sport 2.8 V6 GAS
- Remove alternator assembly.
- Disconnect starter motor electrical connectors.
- Raise and support vehicle.
- On models equipped with automatic transmission, remove right front wheel.
- Remove starter motor to transmission housing attaching bolts.
- Remove starter from ...
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MAINTENANCE LAMP RESET PROCEDURES FOR Audi 90 AUTOMOBILES
Maintenance lamp reset procedures with corresponding images for most domestic and imported Audi 90 cars and light trucks sold in the U.S. from 1990+.
Audi -> Brake Pad Wear Indicator Lamp ->
Vehicle: 1990 Audi 90 2.3 L5 GAS
The brake pad wear warning lamp will be illuminated when disc brake pads wear d...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR Audi 90 AUTOMOBILES
Includes radiator, cooling and heater hose replacement procedures for domestic and imported Audi 90 cars and light trucks from 1990+
Coolant Hose, Replace -> Lower -> Upper
Vehicle: 1993 Audi 90 S 2.8 V6 GAS
Lower
- Drain coolant into a suitable container.
- Reposition hose clamp at radiator and remove hose.
- Reposition hose clamp at thermostat housing and remove hose.
- Remove hose from vehicle.
- Reverse procedure ...
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SERPENTINE BELT SERVICE PROCEDURES FOR Audi 90 AUTOMOBILES
Serpentine belt replacement procedures with corresponding images for most domestic and imported Audi 90 cars and light trucks sold in the U.S. from 1990+.
Serpentine Drive Belt, Replace
Vehicle: 1994 Audi 90 CS 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.
- Remove driv...
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COMPONENT LOCATION DIAGRAMS FOR Audi 90 AUTOMOBILES
Component location diagrams for most Audi 90 cars and light trucks sold in the U.S. from 1990+.
 Rear Auxiliary Relay Panel Locations Diagram for 1995 Audi 90 Sport 2.8 V6 GASComponents on diagram: |
 Diagram for 1994 Audi 90 CS 2.8 V6 GASComponents on diagram: |
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WIRING DIAGRAMS FOR Audi 90 AUTOMOBILES
OEM drawn wiring diagrams for most Audi 90 cars and light trucks sold in the U.S.
 1993 Audi 90 S 2.8 V6 GAS Wiring DiagramComponents on diagram: |
 1994 Audi 90 CS 2.8 V6 GAS Wiring DiagramComponents on diagram: |
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TECHNICAL SERVICE BULLETINS FOR Audi 90 AUTOMOBILES
OEM TSB listings for most Audi 90 cars and light trucks sold in the U.S. from 1985+.
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Document: TRIM PANEL (DOOR) - CLOTH/PLASTIC SEPARATE - REPAIR Vehicle: 1988 Audi 90 2.3 L5 GAS Auto Systems: |
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Document: AIRBAG DTC 00588/01025 - PROCEDURE Vehicle: 1995 Audi 90 2.8 V6 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR Audi 90 AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most Audi 90 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 90 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 90 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 90 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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