TorqFix

Renewing wiper motorV with wiper motor control unit J400 — AUDI

Renewing wiper motorV with wiper motor control unit J400 on Audi: 18 steps. What to remove, in what order, and what to check after.

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

18 steps

🧭 Before you start

Fits: Audi A6 C6 (4F, 2004–2011)

Don't miss

  • The "“Replace”" function in "“Guided Functions”" disables the wiper motor alternating park position (in addition to other items). The wiper motor then always moves to the "“lower”" park position used to make the setting.

📋 Procedure

  1. If control unit is to be renewed, select the "“Replace control unit”" function for appropriate control unit in .
  2. Remove wiper motor .
  3. Pry wiper linkage (1) off ball head (arrow).
  4. Unscrew nut (2) and detach crank (1) from wiper motor.
  5. Unscrew wiper motor from wiper frame (arrows).
AUDI? Steps differ between engine variants — check this job against your exact car before you commit to it. Check my car — free →
  1. Secure wiper motor without crank to wiper frame (arrows).
  2. Plug in electrical connector.
  3. Switch on ignition.
  4. Perform next step in "“Guided Functions”" routine . [Note: The "“Replace”" function in "“Guided Functions”" disables the wiper motor alternating park position (in addition to other items). The wiper motor then always moves to the "“lower”" park position used to make the setting.]
  5. Operate "“touch-wipe function”" and allow wiper motor to move to end position.
  6. Switch off ignition and take out ignition key.
  7. Align crank (1) with wiper frame.
  8. Hold crank in position and hand-tighten nut (2) so setting is not altered.
  9. Then brace crank with an open-end spanner and tighten nut fully.
  10. Switch on ignition.
  11. Operate "“touch-wipe function”" and allow wiper motor to move to end position.
  12. Check that dimension (a) is attained; re-align if necessary.
  13. Install wiper motor .

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.

Seen a figure that does not match your manual? Write to us — we correct it and note when. support@torqfix.com

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Workshop data on this page last updated 20 Sep 2026.