1994 Audi 90 Service and Repair Manual

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Covers all 1994 90 trims — S Sedan 4-Door, CS Sedan 4-Door ·
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1994 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

  • S Sedan 4-Door
  • CS Sedan 4-Door

Engines covered

  • 2.8L 2771CC V6 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
NHTSA #96V01700029/01/1996Component: ELECTRICAL SYSTEM:IGNITION:SWITCH

DEFECTIVE IGNITION SWITCHES WERE IMPROPERLY MANUFACTURED AND CAN CAUSE SOME ELECTRICAL ACCESSORIES TO MALFUNCTION.

Consequence

SOME ELECTRICAL ACCESSORIES, SUCH AS, TURN SIGNALS, WINDSHIELD WIPERS, LAMPS, POWER WIND0WS AND AIR

Remedy

DEALERS WILL REPLACE THE IGNITION SWITCH.

NHTSA #98V33200023/12/1998Component: FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM

VEHICLE DESCRIPTION: PASSENGER VEHICLES EQUIPPED WITH V6 ENGINES. AN INTERNAL SEAL OF THE FUEL INJECTOR CAN MALFUNCTION, ALLOWING FUEL LEAKAGE IN THE ENGINE COMPARTMENT.

Consequence

FUEL LEAKAGE IN THE PRESENCE OF AN IGNITION SOURCE CAN RESULT IN A FIRE.

Remedy

DEALERS WILL REPLACE ALL FUEL INJECTORS.

TSB #10216656

Discontinuation and mixing of Audi-approved engine coolants.

TSB #10216662

Discontinuation and mixing of Audi-approved engine coolants.

TSB #10058584

AUDI: ENGINE, ON SOME VEHICLES, WOULD RUN IRREGULARLY OR HAVE MALFUNCTION INDICATOR LAMP (MIL) ON OR POSSIBLE FILTER ELEMENT FOR CAMSHAFT ADJUSTMENT VALVE CAN LOOSEN AND IN OIL CIRCUIT, THERE IS NO DAMAGE FROM LOOSENED PARTICLES. MODEL ALL.

TSB #10249054

Due to new Minnesota state regulations regarding biofuels, biodiesel blends of B5 or less may not be available in the State of Minnesota.

TSB #10249085

Google Maps Street View (NVLW))

TSB #10243787

Audi Elsa Newsletter

TSB #10231130

Idenifying and mixing factory fill engine coolants

TSB #10123901

Supersedes Technical Service Bulletin Group 00 number 11-19 dated April 8, 2011. This TSB contains information on technician preparation when calling the Audi Technical Assistance Center

Showing the 8 most recent of 15 technical service bulletins on file with NHTSA.

20080811Component: ELECTRICAL SYSTEM:IGNITION:SWITCH

TL*THE CONTACT OWNS A 1994 AUDI 90 CS. THE CONTACT PLACED ALL FOUR WINDOWS DOWN AND THEY WILL CURRENTLY NOT GO BACK UP OR DOWN. THE WINDOWS ARE STUCK IN THE DOWN POSITION. THE DEALER STATED THAT TH

20050609Component: ELECTRICAL SYSTEM:IGNITION:SWITCH

DT: THE IGNITION SWITCH STICKS IN THE ON POSITION AND IS CAUSING ERATIC ELECTRICAL PROBLEMS.*AK

20030923Component: ELECTRICAL SYSTEM:IGNITION

CONSUMER CALLED COMPLAINING ABOUT HAVING PROBLEMS WITH THE ELECTRONIC IGNITION SWITCH. IT CAUSES A MALFUNCTION WITH THE SIGNAL LIGHTS AND THE BLINKERS AS WELL AS THE WINDSHIELD WIPERS. MANUFACTURER W

20030121Component: ELECTRICAL SYSTEM:IGNITION:SWITCH

CONSUMER STATED THAT THE IGNITION SWITCH MUST BE REPLACED. ELECTRICAL SYSTEM STOPPED. TS THE FAILURES CORRESPOND EXACTLY WITH THE CONSEQUENCES DESCRIBED IN RECALL 96V017000. THIS ALSO CAUSED THE TU

20030121Component: SERVICE BRAKES, HYDRAULIC

CONSUMER STATED THAT THE IGNITION SWITCH MUST BE REPLACED. ELECTRICAL SYSTEM STOPPED. TS THE FAILURES CORRESPOND EXACTLY WITH THE CONSEQUENCES DESCRIBED IN RECALL 96V017000. THIS ALSO CAUSED THE TU

Showing the 5 most serious of 13 complaints filed with NHTSA.

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