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1990 Audi 90 Service and Repair Manual
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$29.99 USD
Unit price
Fits the 1990 90 — Base Sedan 4-Door ·
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1990 Audi 90 Service and Repair Manual
Regular price
$29.99 USD
Unit price
1990 Audi 90 service and repair manual a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.
Designed for technicians and DIY owners, this manual helps you troubleshoot accurately, follow step-by-step repair procedures, and reference wiring diagrams and system sections quickly while you work.
What's included
- Step-by-step repair procedures and service information
- Specifications and reference data (where provided)
- Wiring diagrams and electrical sections
- Powertrain, brakes, steering, suspension, HVAC and more
Trims covered
- Base Sedan 4-Door
Engines covered
- 2.3L 2309CC l5 GAS SOHC Naturally Aspirated
Index / Table of contents
- Body
- Brakes
- Chassis Electrical
- Driveline
- Engine Cooling
- Engine Electrical
- Engine Mechanical
- Engine Performance & Emission Controls
- Fuel System
- General Information & Identification
- Heating, Ventilation, & Air Conditioning
- Hybrid & Electric Vehicle Systems
- Steering
- Suspension
- Transmission, Clutch, & Transfer Case
- Wiring Diagrams
THE DIFFERENTIAL OIL OF THE TRANSAXLE IS LOST OVER TIME DUE TO EVAPORATION. LOW OIL LEVELS CAUSE PREMATURE BEARING AND GEAR WEAR AND EVENTUAL FAILURE OF THE DIFFERENTIAL.
Consequence
IN THE EVENT OF FAILURE, THE VEHICLE'S DRIVE WHEELS COULDLOSE POWER. IN EXTREME CIRCUMSTANCES, THE F
Remedy
DRAIN AND REPLACE THE DIFFERENTIAL GEAR OIL WITH OIL HAVING HIGHER PERFORMANCE CHARACTERISTICS.
IMPROPERLY MANUFACTURED STEERING LOCK BOLTS COULD BREAK IF DRIVER APPLIES EXCESSIVE FORCE TO A LOCKED STEERING WHEEL IN AN ATTEMPT TO DISENGAGE THE STEERING LOCK.
Consequence
BOLT BREAKAGE WOULD CAUSE STEERING WHEEL TO REMAIN LOCKED EVEN AFTER THE DRIVER TURNS THE IGNITION K
Remedy
REPLACE COMPLETE STEERING LOCK ASSEMBLY, INCLUDING A MODIFIED LOCK BOLT.
VEHICLE DESCRIPTION: PASSENGER VEHICLES. SOME AIR BAG SENSORS DO NOT COMPLY WITH AUDI'S DURABILITY STANDARDS OVER THE LIFETIME OF THE VEHICLE.
Consequence
IN THE EVENT THE SENSOR SHOULD MALFUNCTION, THE AIR BAG RESTRAINT SYSTEM CAN INADVERTENTLY DEPLOY.
Remedy
DEALERS WILL REPLACE THE AIR BAG SENSOR CONTROL MODULE.
No service bulletins
No technical service bulletins on file with NHTSA for the 1990 Audi 90.
HIGH PRESSURE FUEL LINE SPRANG LEAK UNDER CAR NEAR FIREWALL
RECALL REPAIR NOT COMPLETED DUE TO LACK OF PARTS (97V-172). MJS
BATTERY EXPLODED, AFTER STARTING THE VEHICLE IGNITION COIL HAD A CRACK. TT
BATTERY EXPLODED, AFTER STARTING THE VEHICLE IGNITION COIL HAD A CRACK. TT
Showing the 4 most serious of 5 complaints filed with NHTSA.