Removing and installing relay carrier underneath dash panel (left-side) — AUDI
Removing and installing relay carrier underneath dash panel (left-side) on Audi: 10 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: Audi A6/A7 C7 (4G, 2011–2018); platform code 4X
Don't miss
- Protective cap prevents contamination of or mechanical damage to end face of fibre optic cable which would impair light transmission.
- Exact assignment of contacts can be found in applicable current flow diagram .
📋 Procedure
- Remove footwell vent (driver side) Heating, air conditioning87Air duct system; Removing and installing footwell vent (driver side).
- Disconnect electrical wiring (1, 2) at relay carrier.
- Release retaining spring (4) and swivel relay carrier (6) downwards out of mounting.
- If fitted, unplug electrical connector (5).
- Unplug connector for fibre optic cable (3) and move clear.
- Seal open connector plug (2) of fibre optic cable with protective cap for cable connectorVAS 6223/9(item 1). [Note: Protective cap prevents contamination of or mechanical damage to end face of fibre optic cable which would impair light transmission.]
- Release retaining clip (arrow) and press fuse holder D (item 2) out of relay carrier (1) towards rear.
- Release retaining clip and press off additional fuse holder (2).
- Release retaining clips (arrows) and pull relay (1) and control units out of relay carriers.
- Release retaining clips (arrows) and pull relay carrier (2) out of relay/fuse holder (item 1) towards rear. [Note: Exact assignment of contacts can be found in applicable current flow diagram .]
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
- Renewing bonded rubber bush (front) for rear final drive, four-wheel drive vehicles
- Removing and installing brake pads - steel version brakes (1LM / 1LX)
- Removing and installing cylinder head cover (left-side) - vehicles with two turbochargers
- Removing and installing coolant pipe (front left) - vehicles from model year 2014 onwards
- Renewing cover for final drive, version with angular contact ball bearing (high-efficiency bearing) from gearbox manufacturing date 15 08 11 onwards
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.