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Removing and installing four-wheel drive control unitJ492 > < Electrical and electronic components and fitting locations, rear final drive "0BR", "0BS" and "0BY"

A3 Mk2

Exploded view - removing and installing four-wheel drive control unitJ492, rear final drive 0BD, 0BS and 0BY (Haldex coupling generation „Haldex IV“)
Exploded view - removing and installing four-wheel drive control unit -J492-, rear final drive 0BD, 0BS and 0BY (Haldex coupling generation „Haldex IV“)
For more detailed information refer to:
t  → No.414
   
1 - Four-wheel drive control unit -J492-
q   Is calibrated to match coupling opening control valve -N373-
q   Always renew together with valve
q   Removing and installing → Chapter
2 - Bolt, 6 Nm
3 - Cover
q   With vulcanised seal
q   Will remain attached to control unit or housing of Haldex coupling when control unit is removed
q   Always renew
4 - Coupling opening control valve -N373-
q   Calibrated to match four-wheel drive control unit -J492-
q   Always renew together with control unit
q   Removing and installing → Chapter
5 - Seal
q   Make sure that centring lips are correctly seated in groove
q   Lubricate lightly with high-performance oil for Haldex coupling before fitting
q   Always renew
6 - Seal
q   Diameter 12 mm
q   Lubricate lightly with high-performance oil for Haldex coupling before fitting
q   Always renew
7 - Seal
q   Diameter 11 mm
q   Lubricate lightly with high-performance oil for Haldex coupling before fitting
q   Always renew
8 - Seal
q   Diameter 10 mm
q   Lubricate lightly with high-performance oil for Haldex coupling before fitting
q   Always renew

   

Removing and installing four-wheel drive control unitJ492 > < Electrical and electronic components and fitting locations, rear final drive "0BR", "0BS" and "0BY"