Removing and installing four-wheel drive control unit J492, rear final drive "“0BR”" — VW

🧭 Before you start

Fits: VW Golf V / Jetta (1K, 2003–2009); platform code AJ5

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• It helps to have a tool cart with tools and cloths within reach to set removed parts on.
• Valve seals have different inner diameters.
• The cover fits in only one position.
• The valve fits only in one position.

📋 Procedure

1. Switch off ignition.
2. Separate connectors (1) and (2) of control unit on top.
3. Place drip tray under rear final drive. [Note: It helps to have a tool cart with tools and cloths within reach to set removed parts on.]
4. Remove bolts (arrows).
5. Carefully remove control unit (A).

6. If necessary, remove cover from Haldex coupling housing, holding valve (arrow) securely.
7. Cover coupling opening control valve N373(arrow) with a cloth, grasp valve body with pliers and pull it out. [Note: Valve seals have different inner diameters.]
8. First moisten seal (1) with high-performance oil for Haldex coupling and set onto coupling opening control valve N373.
9. Then locate seals (2), (3) and (4).
10. Press centring lips (Qty. 4) of seal (4) into groove.
11. Set new cover (2) on control unit (1). [Note: The cover fits in only one position.]
12. Insert coupling opening control valve N373(3) into control unit (1). [Note: The valve fits only in one position.]
13. Carefully set control unit (A) in place and tighten bolts (arrows) to specified torque .
14. Check oil level in Haldex coupling .

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