TorqFix

Repairing connector terminals: VW Fox

Step-by-step repairing connector terminals for the VW Fox: 11 steps. What to remove, in what order, and what to check after.

Workshop procedure for VW — the exact step sequence and torque figures, straight from real workshop data.

11 steps

🧭 Before you start

Fits: VW Fox (5Z); platform codes 5W9, 5X9, 9A2, 9A4, 5U2, 9B1, 5Y1, 5X1, 5W1, 5U1, 9B3, 5X5, 5W5, 3X, BC1, 5U4, 5U, 9A5, 9A6, 9A1, 9A3, 5U3, 5UA, 5UC, 7X, 6A5, 6A1

Don't miss

  • The smaller diameter of the lining should point towards the connector.

📋 Procedure

  1. If necessary, first open or unlock the secondary locking device of the connector terminals .
  2. Unlock the terminal (primary locking device) with an appropriate unlocking tool .
  3. Pull the simple cable terminal and remove it from the connector.
  4. Select the yellow repair cable with the correct terminal of the Harness repair setVAS 1978 or Harness repair kitVAS 1978A.
  5. Release the section of the original cable to be repaired (approx. 20 cm on both sides of the section to be repaired).
VW? Steps differ between engine variants — check this job against your exact car before you commit to it. Check my car — free →
  1. If necessary, remove the cable lining with a penknife.
  2. Slot the new terminal of the repair cable onto the connector until it locks in.
  3. If necessary, insert the lining of the simple cable (A) with its respective assembly tool (B) until the stop in the connector. [Note: The smaller diameter of the lining should point towards the connector.]
  4. Shorten the repair cable and original simple cable as necessary, with the Cable stripping pliersVAS 1978/3.
  5. Strip 6 or 7 mm from the ends of the repair cable and the original simple cable with the Cable stripping pliersVAS 1978/3.
  6. Compress the stripped ends of the repair cable and the simple cable of the original harness with the cleaving pliers and a pressure connection, as described in the chapter entitled "“Interruption in cables with a repaired section”". [Note: In the event that more than one cable needs repairing, ensure that the pressure connections are not placed together. In order to prevent the section of cables from occupying too much space, position the pressure connection slightly away.In the event that the repaired section is warped, rewrap the location with yellow adhesive after repairs have been carried out.If necessary, secure the repaired cables with a clamp, this avoiding the generation of any noise when the vehicle is later driven.]

Who makes these pages, and how

TorqFix was built by a mechanic — after a 2,700 km drive with five roadside repairs that no diagnostic tool could explain.

The figures on this page come from manufacturer workshop documentation and are shown as they are. The page is assembled automatically from that data — it is not written by an AI. The AI works in the chat, where it answers for your specific car. It writes nothing here.

Variants of the same model differ. Cross-check torque against the factory manual for your engine before final tightening.

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Workshop data on this page last updated 20 Sep 2026.