Removing and installing tunnel cross member, vehicles with 3.0 ltr. TDI engine — AUDI
Removing and installing tunnel cross member, vehicles with 3.0 ltr. TDI engine on Audi: 16 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 Q7 (4M, 2015–)
Don't miss
- To prevent damage to propshaft heat shield, place a suitable block of wood (arrow) underneath, as shown in illustration.
- Risk of accident.Engine and gearbox jackVAS 6931 must remain in position when work is being carried out and must not be left unattended. — Unplug electrical connectors (1, 2).
📋 Procedure
- Remove rear noise insulation General body repairs, exterior66Noise insulation; Removing and installing noise insulation.
- Remove bolts (arrows) for front exhaust pipe.
- Release catches (arrows A) and move sleeve (1) on manual release cable in direction of (arrow B).
- Disengage manual release cable (rear) from manual release cable (front) (arrow C).
- Set up gearbox support T10337 on engine and gearbox jackVAS 6931 and position underneath gearbox. [Note: To prevent damage to propshaft heat shield, place a suitable block of wood (arrow) underneath, as shown in illustration.]
- Raise gearbox slightly.
- ⚠ Risk of accident.Engine and gearbox jackVAS 6931 must remain in position when work is being carried out and must not be left unattended. — Unplug electrical connectors (1, 2).
- Remove bolts (arrows).
- Move electrical wiring clear.
- Secure bracket with control unit for NOx sender 2J881 and particulate sensor G784 to exhaust pipe.
- Remove bolts (arrows) for tunnel cross member.
- Unscrew nuts (arrows) and lower tunnel cross member (3) slightly.
- Remove bolt (1) and move manual release cable (rear) (2) clear.
- Remove tunnel cross member.
- Install manual release cable for parking lock .
- Install bracket for control unit for NOx sender 2J881 and particulate sensor G78423Lambda probe; Exploded view - Lambda probe.
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
- Dismantling and assembling output shaft
- Removing and installing balance shaft – Audi A8 D3 · 3 torque figures
- Removing and installing timing chain cover (left-side)
- Separating engine and gearbox, vehicles with multitronic gearbox 0AW · 2 torque figures
- Installing gearbox - Audi A4, A5 with 3.0 ltr. TDI engine · 1 torque figures
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.