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Removing and installing telephone operating electronics control unit, vehicles as of 07.2012 — AUDI

Removing and installing telephone operating electronics control unit, vehicles as of 07.2012 on Audi: 13 steps.

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

13 steps

📋 Procedure

  1. Switch off ignition and all electrical loads, and pull out ignition key.
  2. Remove centre console General body repairs, interior 68. Centre console; Removing and installing centre console. [Note: The vehicle carpet must be cut to gain access to the mobile telephone operating electronics control unit J412.Using commercially available scissors, cut the carpet and the insulation below the carpet along the marked cut line. When doing this, slightly lift the carpet and make sure that the lines below the cut line are not damaged.]
  3. Using scissors, carefully cut vehicle carpet and insulation below carpet along dashed line (3).
  4. Pull out section of carpet (2) together with insulation from underneath storage compartment in dash panel (1) towards right into front passenger footwell.
  5. Release and disconnect connector (1).
AUDI? Steps differ between engine variants — check this job against your exact car before you commit to it. Check my car — free →
  1. Pull wiring harness retainers (arrow) off coarse threaded studs.
  2. Detach Velcro tape on bottom of control unit and remove mobile telephone operating electronics control unit J412(2) upwards from coarse threaded studs.
  3. Fit mobile telephone operating electronics control unit J412(3) onto both coarse threaded studs (2).
  4. Press hook tape at bottom of control unit (1) onto loop tape on body shell.
  5. To secure control unit (2), fit 2 wiring harness retainers (arrows) onto coarse threaded studs.
  6. Connect and engage connector (1).
  7. Fit vehicle carpet with insulation back in their original position below storage compartment in dash panel.
  8. Use commercially available adhesive tape to join the two halves of the vehicle carpet and to prevent them from being shifted relative to each other.

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.