Removing gearbox - vehicles with 2.5 ltr. FSI engine: Audi A8 D4

🧭 Before you start

Fits: Audi A8 D4 (4H, 2010–2017)

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• Mounting block attached at (position 2) must be rotated so that the longer side faces upwards, as shown in illustration.
• (Item 1) can be disregarded.
• If necessary, remove radiator fan control unit completely.
• When you then turn the crankshaft, only turn crankshaft in direction of engine rotation (arrow).
• Detach starter from gearbox but do not remove starter.

📋 Procedure

1. ⚠ Before using the gearbox support T40173 it is important to check that you have the correct version of this tool.Older versions of this tool must not be used and must be replaced with the latest version.Distinguishing features of latest version:On the latest version of this tool, the parts shown in (red) in the illustration (arrows) have a yellow chromated finish.If the support does not meet the specifications, proceed as follows:Germany: Contact Matra to have the tool replaced.All countries except Germany: Contact your Importer to have the tool replaced. — Mounting block attached at (position 1) must be removed.
2. Mounting block attached at (position 2) must be rotated so that the longer side faces upwards, as shown in illustration.
3. Bring front wheels into straight-ahead position.
4. ⚠ When disconnecting the battery there is a risk of serious damage to electronic components:Observe the correct procedure for disconnecting the battery. — Disconnect battery Electrical system27Battery; Disconnecting and connecting battery.
5. Remove engine cover panel 10Engine cover panel; Removing and installing engine cover panel.

6. Remove noise insulation (1) and (2)General body repairs, exterior66Noise insulation; Removing and installing noise insulation.
7. Remove coolant pipe on gearbox (right-side) 19Coolant pipes; Removing and installing coolant pipes.
8. Remove front silencers (left and right) 26Exhaust pipes/silencers; Exploded view - silencers.
9. Remove ATF cooler .
10. Remove bolts (2 … 5) securing gearbox to engine (accessible from above).
11. Fit body brace in installation position and screw in bolts hand-tight.
12. Secure engine with tensioning strap T10038 as shown in illustration.
13. Remove bolt (2).
14. Push retainer (1) in direction of (arrow B) and pivot to the rear (arrow A).
15. Unscrew bolts (2) and (arrows) and detach bracket. [Note: (Item 1) can be disregarded.] [Note: Place a cloth below to catch escaping ATF.]
16. Remove bolts (arrows) and detach ATF line (1) from gearbox.
17. Seal off open lines and connections with clean plugs from engine bung setVAS 6122.
18. ⚠ The gearbox control unit (mechatronic unit) can be damaged by electrostatic discharge.Do not touch contact pins in gearbox connector with bare hands. — Touch gearbox housing with your hand (without gloves) to discharge any static electricity.
19. Turn fastener anti-clockwise (arrow) and unplug electrical connector on gearbox.
20. Move wiring harness clear on gearbox.
21. Release hose clip (2) and detach coolant hose. [Note: (Item 1) can be disregarded.]
22. Remove bolts (arrows) and detach heat shield for drive shaft (right-side).
23. Remove bolts (arrows) and detach heat shield for drive shaft (left-side).
24. Unbolt drive shafts (left and right) from flange shafts of gearbox Running gear, axles, steering40Drive shaft; Removing and installing drive shaft.
25. Detach intermediate steering shaft from steering rack and telescope shaft upwards Running gear, axles, steering48Steering column; Removing and installing intermediate steering shaft.
26. Unplug electrical connector (1) for vehicle signals (CAN bus and terminal 15) from power steering control unit J500 (to do this, release retainer and press down release catch).
27. Unplug electrical connector (2) for supply voltage (terminal 30) from power steering control unit J500 (to do this, release retainer (arrow) and press down release catch).
28. Unplug electrical connectors (2) for engine speed sender G28 and move wiring clear. [Note: (Item 1) can be disregarded.]
29. Release catches (arrows A) and move sleeve (1) on manual release cable in direction of (arrow B).
30. Disengage manual release cable (rear) from manual release cable (front) (arrow C).
31. Pull cover (1) off bottom of gearbox (arrow).
32. Fit turning over tool T40272 onto 21 mm spanner T40263.
33. Fit adapter onto bolts on vibration damper. [Note: If necessary, remove radiator fan control unit completely.]
34. To slacken bolts for clutch module, counterhold crankshaft with wrench 21 mm T40263 and turning over tool T40272. [Note: When you then turn the crankshaft, only turn crankshaft in direction of engine rotation (arrow).]
35. Remove 6 bolts (arrow) for torque converter (turn crankshaft 60° in direction of engine rotation each time).
36. Remove bolt (1) for starter.
37. Detach starter from gearbox but do not remove starter.
38. Remove remaining engine/gearbox securing bolts (6 … 11); leave bolt (7) screwed in hand-tight.
39. ⚠ Risk of leaks on ATF oil pan.Do not apply gearbox support T40173 at ATF oil pan. — Position engine and gearbox jackV.A.G 1383 A with gearbox support T40173 (already prepared) underneath gearbox.
40. Gearbox support must be positioned as follows at front of gearbox:
41. Use tensioning strap (1) to secure gearbox. [Note: For illustration purposes, the gearbox support T40173 is not shown.]
42. Remove bolts (arrows) for tunnel cross member.
43. Remove the last bolt securing the gearbox to the engine.
44. Detach gearbox from engine and lower carefully using engine and gearbox jackV.A.G 1383 A.

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