All Wheel Drive Control Module J492

Removing

Special tools and workshop equipment required

4 mm Allen Wrench
Torque Wrench V.A.G 1783
Drip Tray for VAS 6100 VAS 6208

-- Turn off the ignition.

-- Disconnect the connectors -1 and 2- from the upper control module.

Fig 1: Disconnecting Connector To Upper Control Module

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-- Place a drip tray under the final drive.

-- Remove the bolts -arrows-.

Fig 2: Identifying All-Wheel Drive Control Module J492

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-- Carefully remove the control module -A-.

-- Remove the cover (-item 3- in the ALL WHEEL DRIVE CONTROL MODULE J492 ) from the Haldex clutch housing if necessary. Continue holding the valve -arrow-.

Fig 3: Identifying Haldex Clutch Control Valve

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-- Cover the Haldex clutch control valve -arrow- with a cloth; grab the valve body with pliers and remove it.

Fig 4: Identifying Haldex Clutch Control Valve

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Installing

Install in the reverse order of removal. Note the following:

NOTE:

The valve seals have different internal diameters.

Fig 5: Identifying Valve Seal Internal Diameters And Valve Body

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-1- internal diameter - 10 mm
-2- internal diameter - 11 mm
-3- internal diameter - 12 mm
-4- seal on the valve body

-- First, coat the seal -1- with high performance gear oil for Haldex coupling and mount it on the Haldex clutch control valve.

Fig 6: Identifying Valve Seal Internal Diameters And Valve Body

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-- Then the seals -2, 3 and 4-.

-- Press the centering lips (quantity 4) of the seal -4- into the groove.

-- Place the new cover -2- on the control module -1-.

Fig 7: Identifying Seals, Cover & Control Module

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NOTE:

The cover fits in one position only.

-- Insert the Haldex clutch control valve -3- into the control module -1-.

Fig 8: Identifying Seals, Cover & Control Module

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NOTE:

The valve only fits in one position.

-- Carefully position the control module -A- and tighten the bolts -arrows- to specification, see -item 2- in the ALL WHEEL DRIVE CONTROL MODULE J492 .

Fig 9: Identifying All-Wheel Drive Control Module J492

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-- Check the oil level in the Haldex clutch. Refer to HALDEX CLUTCH OIL LEVEL, CHECKING OR FILLING .