Removing sump (top section): Audi A4 B5 (ACK, AFB, AGA, AHA, …)

🧭 Before you start

Fits: Audi A4 B5 (8D)

• Opens: coolant
• Timing position: the crankshaft or camshaft is set and locked during this job
• Special tools named: 17 mm ring spanner

Don't miss

• Before removing, mark direction of rotation of poly V-belt with chalk or felt-tip pen. If the belt runs in the opposite direction when it is refitted, this can cause breakage.
• Different mounting holes are provided for the different engine versions.
• To avoid having to check and adjust wheel alignment, only loosen the front subframe mountings and lower the subframe at the front.

🔧 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.

📋 Procedure

1. ⚠ Observe notes on procedure for disconnecting the battery 27. — Detach rubber seal from plenum chamber cover in direction of (arrow).
2. Detach plenum chamber cover (1) towards the front.
3. With ignition switched off, disconnect battery earth cable (arrow).
4. Remove engine cover panel (arrows).
5. Detach cover (2) from air cleaner.

6. Unbolt air duct (1) for air cleaner at lock carrier and lift out.
7. On vehicles with secondary air system, turn connecting pipe through 45° to the right (arrow) and detach from air cleaner housing.
8. Remove air intake hose between air mass meter G70 and air intake elbow.
9. Unplug electrical connector at solenoid valve 1 for activated charcoal filter system N80 and detach solenoid valve from bracket.
10. Detach electrical connector at air mass meter G70.
11. Unscrew and remove air cleaner housing.
12. On vehicles with secondary air system, disconnect hose (arrow) from secondary air connecting pipe. [Note: Before removing, mark direction of rotation of poly V-belt with chalk or felt-tip pen. If the belt runs in the opposite direction when it is refitted, this can cause breakage.]
13. Turn the tensioner in the direction of the (arrow) using a 17 mm ring spanner to slacken the poly V-belt.
14. Lock tensioner in position by inserting locking pin3204 in locating holes (arrows).
15. Guide poly V-belt over viscous fan and detach belt. [Note: Before removing, mark direction of rotation of poly V-belt with chalk or felt-tip pen. If the belt runs in the opposite direction when it is refitted, this can cause breakage.]
16. Turn the tensioner in the direction of the (arrow) using a 10 mm hexagon key to slacken the poly V-belt.
17. Lock tensioner in position by inserting locking pin3204 in locating holes (arrow 1) and (arrow 2).
18. Guide poly V-belt over viscous fan and detach belt.
19. Detach vacuum hose (2) at vacuum unit for cruise control.
20. Unscrew bolts (1) and move vacuum unit downwards.
21. Set up support bracket10-222 A with adapter10-222 A/3 on wing panel flanges.
22. Connect support bracket to front and rear lifting eyes on engine.
23. Raise engine as far as possible with spindles of support bracket.
24. Unbolt dipstick guide tube on cylinder head (arrow) and lift out upwards.
25. Remove noise insulation (arrows).
26. Place used oil collection and extraction unitV.A.G 1782 under engine.
27. Drain off engine oil.
28. Remove front bumper 63.
29. Move lock carrier to service position 50.
30. ⚠ Hot steam or hot coolant can escape when expansion tank is opened; cover filler cap with cloth and open carefully. — Open filler cap on coolant expansion tank.
31. Place drip tray for workshop hoistVAS 6208 under engine.
32. Turn drain plug (arrow) on radiator anti-clockwise, if necessary fit drain hose to connection.
33. Also open coolant drain plug on engine (arrow).
34. Drain off coolant.
35. Remove bracket for ATF lines (arrows).
36. If fitted, unplug electrical connector (arrow) at oil level/temperature sender G266 and move wiring clear.
37. If fitted, unclip actuator rod for vehicle level sender at bottom transverse link (arrow).
38. Cut through cable ties (arrows). Open retainer for starter wiring and take out wiring.
39. Unbolt torque reaction support and stop for torque reaction support.
40. Clamp off both coolant hoses leading to oil cooler with hose clamps3094.
41. Place drip tray for workshop hoistVAS 6208 under engine.
42. Unscrew coolant pipe (arrows) and detach it from hoses.
43. Unplug connector at oil pressure switch F1 and move wiring clear.
44. Mark positions of bolt connections (1) and locating sleeves (2) on bottom of engine mounts (left and right). [Note: Different mounting holes are provided for the different engine versions.]
45. Remove bottom nut (1) at engine mounting (left and right).
46. Remove engine mounting (left-side).
47. First remove front subframe bolts (2) and (3) (left and right). Then remove bolts (1). [Note: To avoid having to check and adjust wheel alignment, only loosen the front subframe mountings and lower the subframe at the front.]
48. Pivot anti-roll bar downwards.
49. Detach wires (1) and (2) at starter and detach insulator at positive connection of starter.
50. Remove starter bolts (arrows) from gearbox side.
51. Unscrew clamp on right of top section of sump and move electrical wiring clear.
52. Detach starter.
53. Remove sump (bottom section) (1).
54. Unscrew cover plate (1).
55. Remove gasket (2).
56. Place used oil collection and extraction unitV.A.G 1782 under engine.
57. Unbolt brackets (arrows) and pull off long oil supply pipe from below.
58. Unscrew chain sprocket using TORX wrench T45 (arrow) and pull it off oil pump.
59. Remove oil pump together with short oil supply pipe (arrows).
60. Unscrew engine/gearbox securing bolts in area of sump (top section).

Other AUDI procedures

• Testing solenoid valve 1 for activated charcoal filter
• Testing idling speed switch
• Checking control unit voltage supply
• Testing knock sensors
• Testing solenoid valves for camshaft adjustment – Audi 2.8 ACK
• 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