Removing and installing emergency exit system control unit J479 — AUDI
Removing and installing emergency exit system control unit J479 on Audi: 9 steps, 1 torque figure. What to remove, what to tighten and to how many Nm.
Workshop procedure for AUDI — the exact step sequence and torque figures, straight from real workshop data.
🧭 Before you start
Fits: Audi A8 D4 (4H, 2010–2017)
🔩 Torque settings
Values can differ between engine variants — check the code stamped on your block.
| Torque | Fastener / step |
|---|---|
| 5 Nm (3.7 lb-ft) | Unscrew the nuts |
ℹ️ Always cross-check the exact figure against your vehicle's factory manual before final tightening — a wrong torque can damage the engine. These values are extracted from workshop data and may not cover every variant or revision.
📋 Procedure
- Switch off ignition.
- Set the emergency exit system switch E239 to "“OFF”".
- Remove the following fuse for the voltage supply to emergency exit system control unit J479:
- Remove the bracket.
- Unscrew the nuts (5 Nm) (arrows). — 5 Nm (3.7 lb-ft)
- Detach emergency exit system control unit J479(1) from the stud and unplug the connector.
- Installation is performed in reverse sequence.
- Check the connections to the interior door handles .
- Check the connections to emergency exit system switch E239.
Other AUDI procedures
- Removing and installing toothed belt – Audi · 56 torque figures
- Removing engine – Audi A8 D3 · 41 torque figures
- Removing camshaft timing chain from camshafts – Audi A6/A7 C7 · 38 torque figures
- Installing engine – Audi A8 D4 · 36 torque figures
- Removing and installing camshaft timing chain · 29 torque figures
- Removing and installing rear bonded rubber bushes for rear final drive
- Removing and installing upper transverse link (front) – Audi
- Renewing connection piece – Audi A6 C6
- Removing and installing control unit for electrically adjustable steering column J866
- Removing and installing tilt mechanism for sunroof – Audi Q7
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
The story behind TorqFix →Workshop data on this page last updated 20 Sep 2026.