1993 Audi 90 Quattro 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.
Built for technicians and DIY owners, this manual helps you troubleshoot accurately, follow step-by-step repair procedures, and use wiring diagrams and system sections to diagnose problems faster.
What’s included
- Step-by-step repair procedures and service information
- Specifications and reference data (where provided)
- Electrical coverage with wiring diagrams
- Coverage across key systems: engine, transmission, brakes, steering, suspension, HVAC, and more
Trims covered
- 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
VEHICLE DESCRIPTION: PASSENGER VEHICLES EQUIPPED WITH V6 ENGINES. AN INTERNAL SEAL OF THE FUEL INJECTOR CAN MALFUNCTION, ALLOWING FUEL LEAKAGE IN THE ENGINE COMPARTMENT.
FUEL LEAKAGE IN THE PRESENCE OF AN IGNITION SOURCE CAN RESULT IN A FIRE.
DEALERS WILL REPLACE ALL FUEL INJECTORS.
VEHICLE DESCRIPTION: PASSENGER VEHICLES. SOME AIR BAG SENSORS DO NOT COMPLY WITH AUDI'S DURABILITY STANDARDS OVER THE LIFETIME OF THE VEHICLE.
IN THE EVENT THE SENSOR SHOULD MALFUNCTION, THE AIR BAG RESTRAINT SYSTEM CAN INADVERTENTLY DEPLOY.
DEALERS WILL REPLACE THE AIR BAG SENSOR CONTROL MODULE.
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.
Due to new Minnesota state regulations regarding biofuels, biodiesel blends of B5 or less may not be available in the State of Minnesota.
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HEADLIGHT AIMING, USING HELLA UNIVERSAL BEAMSETTER. *KB
BRAKE PEDAL SQUEAK. *TW
TIE RODS MIDAS AUTO REPAIR CENTER PUT ON MY 1993 AUDI 90 CS WHERE BOTH DEFECTIVE THAT THEY GOT FROM CAR QUEST. THE DAY THE TIE RODS FAILED WAS WHEN I AND MY WIFE WHERE COMING OUT OF THE DRIVE THROUGH
CONSUMER TOOK VEHICLE IN FOR RECALL (98V-332) REPAIR WORK ON THE FUEL INJECTION SYSTEM ON MAY 18, 2001, THE VEHICLE CAUGHT FIRE THE NEXT DAY IN THE ENGINE COMPARTMENT. *MJS
CONSUMER RECEIVED A RECALL NOTICE (98-V332) ON FUEL INJECTORS AND TOOK THE VEHICLE TO THE DEALER TO HAVE THE RECALL PERFORMED AND THEY INSTALLED FUEL INJECTORS AND A FUEL LINE, AFTER INSTALLATION THE
DRIVING ABOUT 40MPH WHEN VEHICLE STARTED TO DECELERATE. PULLED TO SIDE. SMOKE CAME FROM UNDER HOOD & FILLED INSIDE OF VEHICLE. OWNER EXITED VEHICLE & THEN SPARKS APPEARED & THEN FLAMES DROPPING FROM R
Showing the 4 most serious of 37 complaints filed with NHTSA.
