TorqFix

Removing and installing ultrasonic sensor control unit J347 — AUDI

Removing and installing ultrasonic sensor control unit J347 on Audi: 11 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.

11 steps

🧭 Before you start

Fits: Audi A6 C5 (4B)

📋 Procedure

  1. Remove the seat bench 72.
  2. Remove the fixed rear seat backrest on the appropriate vehicles 72.
  3. Remove the left rear seat side padding on the appropriate vehicles 72.
  4. ⚠ Heed the safety precautions for working on side airbags 69. — Remove the left side airbag 69.
  5. Screw out bolts (arrows).
AUDI? Steps differ between engine variants — check this job against your exact car before you commit to it. Check my car — free →
  1. Take out ultrasonic sensor control unit J347(Item 1).
  2. Unplug connector (2).
  3. Fit the left side airbag 69.
  4. Fit the fixed rear seat backrest on the appropriate vehicles 72.
  5. Fit the left rear seat side padding on the appropriate vehicles 72.
  6. Install the seat bench 72.

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.