The suspension arms are connected to the body brackets through rubber-metal hinges. Vehicles with body height adjustment have an anti-roll bar installed inside the rear suspension beam.
Rear suspension springs
Label color | car models |
White | Vehicles with 4-cylinder engines |
brown | Cars with 5-cylinder engines |
orange | station wagons |
Blue | Vehicles with reinforced suspension |
Green | Sedans with body positioner |
yellow | Station wagons with body positioner |
Shock absorbers
Double-acting hydraulic telescopic shock absorbers.
Shock brand: Boge.
Body height adjuster
On some cars, a hydraulic body height adjuster was installed on request.
The body positioner system includes:
- high pressure piston pump common with power steering. Productivity at idle, l / min: 0.3;
- expansion tank.
- two pressure accumulators (one for each side of the rear suspension). Filling pressure, kg/cm2 - 15; maximum pressure, kg/cm2: ≥140;
- control valve;
- anti-roll bar.
Rear wheel alignment
The alignment angles of the rear wheels on an equipped vehicle, with normal tire pressure, in the absence of excessive play in the rear suspension units, should have the following values
- camber: -30'±20';
- maximum allowable camber angle difference between right and left wheels: 30';
Convergence of each wheel:
- for vehicles with rear drum brakes from chassis no. up to EA 085 288 +15'±10' or 1.60+1 mm;
- for vehicles with rear disc brakes from chassis no. up to EA 082 448: the same;
- for vehicles with rear drum brakes with chassis no. from EA 085 289: +10'±5' or +1±0.5 mm;
- for vehicles with rear disc brakes from chassis no. EA 082 449: same.
Note. The angles of the rear wheels are not adjustable.
Since January 1988, the rear wheel track of Audi vehicles «100» And «Avant» became wider due to the installation of redesigned hubs, new brake drums or discs.
Rear wheel track, mm:
- vehicles with drum brakes: 1481;
- vehicles with disc rear brakes: 1482.
Rear wheel alignment (without load): Camber: -50'±30'.
Note. On vehicles equipped with ABS, bushings are pressed into the rear suspension beam to mount wheel speed sensors.
On vehicles with engine models «RT» And «NF» 1989 1991 model years, the rear wheel alignment on the vehicle in curb condition must have the following values:
collapse:
- vehicles up to Ns chassis 44 JN 201 030: -40'±30';
- vehicles starting from Ns chassis 44 JN 201 031: -50'±30';
- maximum allowable camber angle difference between right and left wheels: 30';
convergence:
- vehicles with rear drum brakes up to Ns chassis EA 085 288 and rear disc brakes up to chassis no. EA 082 448: +15'±10';
- vehicles with rear drum brakes, starting from Ns chassis EA 085 289, and rear disc brakes, starting from chassis no. EA 082 449: +10'±10',
- maximum allowable toe angle difference between right and left wheels: 25'.
Rear wheel hubs
The rear wheel hubs are mounted on two tapered roller bearings.
Since January 1988, the rear wheel hubs have been 6 mm higher than before, so the bearing surface of the wheel rim has been changed accordingly.
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