Separating engine and manual gearbox — AUDI

🧭 Before you start

Fits: Audi A6 C6 (4F, 2004–2011)

• Special tools named: VAS 6131/11, VAS 6131/12, VAS 6131/10

Don't miss

• A second mechanic is required for removing the subframe.
• The mounting points for engine (front), gearbox (rear) and tunnel cross members remain unchanged.
• Illustration shows electrical connector when installed.Disregard item (1).
• Disregard (items 2 and 3).
• Disregard (items 1 and 3).

🔧 Engine codes this applies to

🔩 Torque settings

Values can differ between engine variants — check the code stamped on your block.

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.

📐 26 workshop diagrams for BDX

Real factory drawings for this job — timing marks, bolt locations and routing. Locked in the free view.

📋 Procedure

1. Screw down spindles of the support elements (left and right) at subframe as far as possible.
2. Remove locating lugs from spindles.
3. Remove subframe to the side. [Note: A second mechanic is required for removing the subframe.]
4. Unscrew the two base plates for support elements (for subframe) on scissor-type assembly platformVAS 6131 A. [Note: The mounting points for engine (front), gearbox (rear) and tunnel cross members remain unchanged.]
5. Set up scissor-type assembly platformVAS 6131 A with support set for AudiVAS 6131/10, VAS 6131/11 and VAS 6131/12 as follows:

6. Position the support elements from VAS 6131/10 and VAS 6131/12 at left of engine/gearbox assembly as shown in illustration.
7. Position the support elements from VAS 6131/10 and VAS 6131/11 at right of engine/gearbox assembly as shown in illustration.
8. Turn spindles for the support elements upwards until all locating lugs make contact with the mounting points.
9. Tighten base plates for support elements to 20 Nm on scissor-type assembly platformVAS 6131 A. — 20 Nm (15 lb-ft)
10. Unplug electrical connector (arrow) for engine speed sender G28.
11. Unplug electrical connector (2) for Lambda probe 2 after catalytic converter G131 and move wiring clear. [Note: Illustration shows electrical connector when installed.Disregard item (1).]
12. ⚠ Risk of damage to flexible joints in front silencer.Do NOT bend the flexible joints in the front silencer more than 10°. — Remove bolts (1) on bracket (rear) for exhaust system. [Note: Disregard (items 2 and 3).]
13. Unscrew nuts (1 ... 3).
14. Detach front exhaust pipe (left-side) with catalytic converter.
15. Unplug electrical connector (arrow) for reversing light switch F4 and move electrical wire clear.
16. Unplug electrical connector (2) for Lambda probe after catalytic converter G130 and move wiring clear. [Note: Illustration shows electrical connector when installed.Disregard item (1).]
17. ⚠ Risk of damage to flexible joints in front silencer.Do NOT bend the flexible joints in the front silencer more than 10°. — Remove bolts (2) on bracket (rear) for exhaust system. [Note: Disregard (items 1 and 3).]
18. Remove bolt (1) on bracket (right-side) for front exhaust pipe. [Note: Disregard item (2).]
19. Unscrew nuts (1 ... 3).
20. Detach front exhaust pipe (right-side) with catalytic converter.
21. Remove bolts (1 ... 10) securing gearbox to engine.
22. Loosen clamping bolts (1) on sides of scissor-type assembly platformVAS 6131 A and pull rear section of platform together with gearbox towards rear (arrow).

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