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Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 1994 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 1994 Audi 90 Quattro automobile. Try the Automotix DIY solution today!
We have info for following modifications of 1994 Audi 90 Quattro
- 1994 Audi 90 Quattro CS 2.8 V6 GAS, CC:2771, Fuel Injection, Engine VIN:, Desg:J
- 1994 Audi 90 Quattro CS 2.8 V6 GAS, CC:2771, Fuel Injection, Engine VIN:, Desg:K
BRAKE SERVICE PROCEDURES FOR 1994 Audi 90 Quattro AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1994 Audi 90 Quattro cars and light trucks from 1990+.
Anti-lock Brakes -> Diagnosis & Testing -> 1994-95 90 -> 1994-95 A6, S4, S6 & 100 -> 1996 Models -> A4 -> A6, S4, S6, 90 & 100 -> ABS Return Pump Does Not Run, Relay Good, Tester In Position 3 -> ABS Return Pump Does Not Run, Tester In Position 3 -> Accessing Diagnostic Trouble Codes (DTC) -> Clearing Diagnostic Trouble Codes -> Diagnostic Tests -> Electrical Testing -> Hydraulic Modulator High & Low Pressure Inspection -> LED 1 & 3 Do Not Light, Tester In Position 1 -> LED 18 Does Not Light -> LED 19 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 -> Read Measuring Value Block -> Sensor Signal On Meter Below Minimum Value -> With LED Type Tester -> With Scan Tool -> Wrong Solenoid Valve Operates, Tester In Position 5
Vehicle: 1994 Audi 90 Quattro CS 2.8 V6 GAS
With LED Type Tester
LED 1 & 3 Do Not Light, Tester In Position 1
Refer to Fig. , for LED identification numbers. Weaker illumination of an LED indicates a contact resistance in respective circuit.
- Check for continuity between ABS control unit connector terminal 34 and ground, at battery ground cable (LED 1). Fig. .
- Check for continuity between ABS control unit connector terminal 10 and ground, at battery ground cable (LED 3).
- If continuity does not exist, repair circuit for short or open.
LED 4 Does Not Light, Tester In Position 1
Refer to Fig. , for LED identification. We...
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BRAKE SERVICE PROCEDURES FOR 1994 Audi 90 Quattro AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1994 Audi 90 Quattro cars and light trucks from 1990+.
Disc Brakes -> Single Piston Rear Disc Brakes -> Caliper Service -> Overhaul
Vehicle: 1994 Audi 90 Quattro CS 2.8 V6 GAS
Overhaul
Refer to Fig. when servicing front disc brake calipers, noting the following:
- On A4, A6, Cabriolet, S4, S6, 90 and 100 models, remove piston from caliper housing using replacement tool No. 3272, or equivalent, Fig. .
- On V8 Quattro models, remove piston from caliper housing using replacement tool No. 3272, or equivalent.
- Remove caliper piston seal using a suitable screwdriver, Fig. .
- Install piston as follows:
- Install protective cap with sealing lip onto piston, Fig. .
- Using a suitable screwdriver insert inner sealing lip of protective c...
CLICK HERE TO GET FULL ACCESS TO 1994 Audi 90 Quattro BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1994 Audi 90 Quattro AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1994 Audi 90 Quattro cars and light trucks from 1990+.
Power Brake Units -> Power Brake Unit Service -> A4 -> Except A4 -> Hydraulic Booster/Servo -> Vacuum Booster
Vehicle: 1994 Audi 90 Quattro CS 2.8 V6 GAS
Hydraulic Booster/Servo
A4
- Remove master cylinder as outlined under "Hydraulic Brake System" section.
- Disconnect hydraulic lines from brake servo unit.
- Remove stowage area from under lefthand side dash.
- Disconnect vacuum line from booster/servo.
- Remove brake servo unit attaching bolts.
- Pull back and remove brake lamp switch and cruise control vent valve from brake pedal if equipped.
- Install removal tool No. 3289, then disconnect pushrod from brake pedal.
- Remove brake servo unit
- Reverse procedure to install. Bleed brake system.
Except A4
- Remove master cylinder as outlined under "Hydrau... "
CLICK HERE TO GET FULL ACCESS TO 1994 Audi 90 Quattro BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1994 Audi 90 Quattro AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1994 Audi 90 Quattro cars and light trucks from 1990+.
Anti-lock Brakes -> Troubleshooting -> 1994-95 -> Power Supply
Vehicle: 1994 Audi 90 Quattro CS 2.8 V6 GAS
Power Supply
1994-95
- 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 battery voltage between ABS control unit plug terminals 1 and 10. Approximate battery voltage should be read.
- If ap...
CLICK HERE TO GET FULL ACCESS TO 1994 Audi 90 Quattro BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1994 Audi 90 Quattro AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1994 Audi 90 Quattro cars and light trucks from 1990+.
Disc Brakes -> Dual Piston Front Disc Brakes -> Brake Pad Service -> 90 -> Cabriolet -> Install -> Remove -> S4 & S6
Vehicle: 1994 Audi 90 Quattro CS 2.8 V6 GAS
S4 & S6
Remove
- Raise and support vehicle, then remove wheel assemblies.
- If brake pads are to be reused, then mark installed positions for installation reference.
- Secure brake disc on wheel hub with a wheel lug nut.
- Remove outer brake pad mounting bolts, Fig. .
- Extract part of brake fluid from reservoir using a suitable bleeder bottle, then push piston back into caliper housing by inserting a suitable screwdriver into floating frame and pressing firmly to outside.
- Disconnect wiring harness electrical connector, then remove brake pad wear indicator wiring from bra...
CLICK HERE TO GET FULL ACCESS TO 1994 Audi 90 Quattro BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1994 Audi 90 Quattro AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1994 Audi 90 Quattro cars and light trucks from 1990+.
Hydraulic Brake Systems -> Precautions -> Audio Coded Anti-Theft System
Vehicle: 1994 Audi 90 Quattro CS 2.8 V6 GAS
Audio Coded Anti-Theft System
Some models are equipped with an audio anti-theft system that will disable the audio unit when battery power is interrupted, unless the system is reset the audio unit will not operate.
It is recommended that the anti-theft system code be obtained before attempting any repair that requires battery disconnect. If a code is unavailable, a "Computer Memory Saver" should be plugged into the cigarette lighter to maintain a constant voltage to the audio unit.
If audio unit is disabled proceed as follows to reactivate system.
- Obtain audio unit security code from vehi...
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