Removing and installing relay and fuse carrier (front passenger's footwell) — AUDI
Removing and installing relay and fuse carrier (front passenger's footwell) on Audi: 17 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.
🧭 Before you start
Fits: platform code 42
Don't miss
- Exact assignment of contacts in fuse holder (front passenger's footwell) can be found in applicable current flow diagram .
📋 Procedure
- Switch off ignition and take out ignition key.
- Remove foot rest cover (front passenger's side) 70.
- Remove dash panel cover (passenger's side) 68.
- Cut through cable tie on manual release mechanism for front lid.
- Cut through cable ties on wiring harnesses.
- Remove nuts (3 and 4) and bolt (1).
- Remove front passenger's footwell bracket (2) for relay and fuse holder in direction of (arrow).
- Release retaining clips (arrows A) and lift onboard supply control unit J519(item 1) out of relay and fuse holder (arrow B).
- Release retaining springs (arrows A) and remove onboard supply control unit J519 from relay and fuse holder towards left (arrow B).
- Release retaining clips (arrows) and press fuse holders (1 ... 6) out of bracket towards rear.
- If fitted, release captive fastener and pull it off fuse carrier.
- Remove fuses from fuse holder.
- Release retaining clips (arrows) and remove cover from fuse holder.
- Pull off retaining strip (1) for connectors (arrow) and take connectors out of socket. [Note: Exact assignment of contacts in fuse holder (front passenger's footwell) can be found in applicable current flow diagram .]
- Install onboard supply control unit J519.
- Install front passenger's footwell bracket for relay carrier .
- Connect battery. Steps required .
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
- Testing data exchange between engine/ABS/gearbox control unit, dash panel insert
- Removing and installing toothed belt, engine codes 1Z, AFF, AFN, AHU
- Testing boost pressure - engine codes 1Z, AFF, AHU – Audi 1Z
- Dismantling and assembling differential (gearbox with oil pump)
- Adaption of throttle valve control part
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.