Audi 80/90/Coupe

since 1986-1991 release

Repair and operation of the car

Audi 80/90/Coupe
- 1.2. Identification of the car
   1. Maintenance instruction
   1.3. Arrangement of identification plates
   1.4. Dashboard
   + 1.5. Service of the car
   + 1.6. Independent service of the car
   - 1.7. Specifications
      1.7.2. Audi-90/Audi-90 Quattro, Quattro 20V models
   1.8. Capacities
   1.9. Sizes
   1.10. Loadings
   1.11. Schedule of preventive servicing / lubricant of the car
+ 2. Engines, carburetors
3. Lubrication system
+ 4. Cooling system
+ 5. Fuel system
+ 6. Exhaust system
+ 7. System of ignition
+ 8. Transmission
+ 9. Suspension brackets, wheels
+ 10. Brake system
+ 11. Steering
+ 12. Body, salon
+ 13. Air conditioning system
+ 14. Electric equipment

1.7.2. Audi-90/Audi-90 Quattro, Quattro 20V models

GENERAL INFORMATION

Data on engines / spark plugs

Engine	Audi-90		Audi-90 Quattro	Quattro 20V
Maximum power	108 h.p. at 5300 rpm	130 h.p. at 5700 rpm	130 h.p. at 5700 rpm	164 h.p. at 6000 rpm
Number of cylinders	4	5	5	5
Working volume, ^cm3	1984	2309	2309	2309
Working piston stroke, mm	92.8	86.4	86.4	86.4
Diameter of the cylinder, mm	82.5	82.5	82.5	82.5
Extent of compression	10.5:1	10:1	10:1	10.3:1
Spark plugs
Bosch	W 7 DTC	W 7 DTC	W 7 DTC	F6 DTC
Beru	14-7 DTU	14-7 DTU	14-7 DTU	14F-6DTU
Champion	N 7 BYC	N 7 BYC	N 7 BYC	C6 BYC
Interelectrode gap, mm	0.7– 0.9	0.7 – 0.9	0.7 – 0.9	0.7 – 0.9

When carrying out scheduled preventive maintenance in auto repair shop replacement of spark plugs is made. If you want to replace candles between scheduled preventive maintenance, it is necessary to remember the following:

– the engine, spark plugs and system of ignition are adjusted for collaboration. In order that the engine continued to work regularly, use only company spark plugs recommended by Audi. It is also very important to pay attention to number of electrodes and temperature of heating;
– as on models of one year of release in view of the technical reasons spark plugs with various characteristics can be established, we recommend that you got spark plugs from the dealer of Audi who possesses the latest information.

Maple belts

Engine, power, h.p.

108

130

164

for the generator
–

11.2 x 866

11.2 x 825

for the generator and water ^nasosa1)
9.5 x 950

–

–

for the conditioner compressor
12.5 x 795

12.5 x 915

12.5 x 915

for the pump of the hydraulic booster of steering
9.5 x 850

12.5 x 992

12.5 x 992

¹⁾ this belt is absolutely necessary for operation of the engine. Therefore it is recommended that you always had a spare maple belt in the car for bystry replacement.

Maple belts experience the greatest strain at operation of the car. Therefore they have to be of very high quality.

When replacing a belt, it is impossible just to use any belt of the same size. For ensuring safe operation of the engine, use only branded maple belts of Audi developed especially for your car. Klinovy belts can be bought from the dealer of Audi.