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1990 Audi 90 Quattro CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Audi REPAIR SHOPS DON'T WANT YOU TO KNOW
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- A/C & Heater Service
- Brake Service
- Fuel Filter Replacement
- Driveline, U-Joint & CV Axles Replacement
- Starter & Alternator Replacement
- Maintenance Lamp Reset
- Radiator & Hose Replacement
Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 1990 Audi 90 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 90 Quattro automobile. Try the Automotix DIY solution today!
A/C & HEATER SERVICE PROCEDURES FOR 1990 Audi 90 Quattro AUTOMOBILES
A/C & Cooling System Maintenance -> Audi -> 1990-96
Vehicle: 1990 Audi 90 Quattro 20V 2.3 L5 GAS
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BRAKE SERVICE PROCEDURES FOR 1990 Audi 90 Quattro AUTOMOBILES
AUDI, DISC BRAKES -> Girling Single Piston w/Dual Mounting Bolts, Rear -> REAR BRAKE BASIC SETTING, CHECKING
Vehicle: 1990 Audi 90 Quattro 20V 2.3 L5 GAS
Parking brake cable must be free of tension during basic setting check.
- Using a suitable screwdriver, push caliper lever against stop on both sides of vehicle. Parking brake cable is too tight if lever of opposite side caliper is pulled away from stop.
- If necessary, loosen adjustment nut for parking brake cable until both levers rest against stop.
- On models except Quattro, push a screwdriver of a least .23...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 1990 Audi 90 Quattro AUTOMOBILES
Audi -> Fuel Filter Scheduled Maintenance -> All 1989-05 -> Normal Service -> Severe Service
Vehicle: 1990 Audi 90 Quattro 20V 2.3 L5 GAS
Normal Service
Service as re...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1990 Audi 90 Quattro AUTOMOBILES
CV AXLE SHAFT, Replace -> Less Attached Wheel Bearing Housing -> W/Attached Wheel Bearing Housing
Vehicle: 1990 Audi 90 Quattro 20V 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 1990 Audi 90 Quattro AUTOMOBILES
Starter, Replace
Vehicle: 1990 Audi 90 Quattro 20V 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 1990 Audi 90 Quattro AUTOMOBILES
Audi -> Brake Pad Wear Indicator Lamp ->
Vehicle: 1990 Audi 90 Quattro 20V 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 1990 Audi 90 Quattro AUTOMOBILES
Radiator, Replace
Vehicle: 1990 Audi 90 Quattro 20V 2.3 L5 GAS
- Drain coolant into a suitable container.
- Remove clamping nipple through access hole.
- Rotate brackets approximately 90 degrees and unclip cable from bracket.
- Remove front bumper.
- Disconnect hood release cable.
- Unscrew both left and right side trim panels and pull panels out of side grommets.
- Remove upper radiator bracket.
- Disconnect lock carrier support and remove.
- Remove bolts and remove lower cooling air duct f...
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COMPONENT LOCATION DIAGRAMS FOR 1990 Audi 90 Quattro AUTOMOBILES
Component location diagrams for most 1990 Audi 90 Quattro cars and light trucks sold in the U.S. from 1990+.
 Engine Compartment Components Diagram for 1990 Audi 90 Quattro 20V 2.3 L5 GASComponents on diagram: |
 Luggage Compartment Components Diagram for 1990 Audi 90 Quattro 20V 2.3 L5 GASComponents on diagram: |
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WIRING DIAGRAMS FOR 1990 Audi 90 Quattro AUTOMOBILES
OEM drawn wiring diagrams for most 1990 Audi 90 Quattro cars and light trucks sold in the U.S.
 1990 Audi 90 Quattro 20V 2.3 L5 GAS Wiring DiagramComponents on diagram: |
 1990 Audi 90 Quattro 20V 2.3 L5 GAS Wiring DiagramComponents on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 1990 Audi 90 Quattro AUTOMOBILES
OEM TSB listings for most 1990 Audi 90 Quattro cars and light trucks sold in the U.S. from 1985+.
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Document: AIRBAG / PYROTECHNIC SAFETY BELT DEPLOYMENT INQUIRIES - REVISED Vehicle: 1990 Audi 90 Quattro 20V 2.3 L5 GAS Auto Systems: |
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Document: AIRBAG, REPLACEMENT INTERVAL CHANGE - REVISED Vehicle: 1990 Audi 90 Quattro 20V 2.3 L5 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 1990 Audi 90 Quattro AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1990 Audi 90 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 1990 Audi 90 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 1990 Audi 90 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 1990 Audi 90 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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