Separating control unit from hydraulic unit — VW

🧭 Before you start

Fits: platform codes A32, A33

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• Before working on electric components, touch an earthed object, ESD workplaceVAS 6613. Do not directly touch connector contacts or electronic components.

📋 Procedure

1. Remove ABS hydraulic unit N55 together with ABS control unit J104.
2. Before working on electric components, touch an earthed object, ESD workplaceVAS 6613. Do not directly touch connector contacts or electronic components.
3. Lay down hydraulic unit together with control unit on ESD workplaceVAS 6613.
4. Set hydraulic unit with control unit facing upwards on ESD workplaceVAS 6613.
5. Remove bolts (arrows).

6. Unscrew the 3 Torx bolts from control unit and lay them aside immediately (to avoid interchanging with the new Torx bolts).
7. Pull off ABS control unit J104 off ABS hydraulic unit N55 in (direction of arrow) without tilting ABS control unit.
8. Carefully pull all seals from contact pins of ABS hydraulic unit N55.
9. Cover control unit solenoids with a lint-free cloth.
10. Check cleanliness of hydraulic unit sealing surface; clean with methylated spirits and a lint-free cloth if necessary.

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