Removing - vehicles with engine code letters ANA: Audi A4 B5 1.6 (AHL, ANA, ARM)

🧭 Before you start

Fits: Audi A4 B5 (8D)

• Timing position: the crankshaft or camshaft is set and locked during this job
• Special tools named: V.A.G 1202

Don't miss

• The flexible pipe connection (de-coupling element) on the front exhaust pipe must not be bent more than 10° - otherwise it can be damaged.
• Unscrew coolant pipe for power steering hydraulic fluid (arrows) and move clear to side; do not open hydraulic fluid circuit.
• Note the rules for cleanliness when working on the automatic gearbox Automatic gearbox 01N37.
• To prevent damage to the condenser and refrigerant pipes/hoses, ensure that the pipes and hoses are not stretched, kinked or bent.
• Refrigerant circuit of air conditioner must not be opened. — Unscrew bolts (4) for air ducts (left and right) at radiator and detach air ducts.

🔧 Engine codes this applies to

📐 14 workshop diagrams for AHL

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

📋 Procedure

1. Move selector lever into position "“N”".
2. Obtain code on vehicles with coded radio / radio and navigation system (RNS).
3. Detach rubber seal from plenum chamber cover in direction of (arrow).
4. Detach plenum chamber cover (1) to front.
5. With ignition switched off, disconnect earth wire (arrow) at battery.

6. ⚠ Hot steam/hot coolant may escape when opening expansion tank; cover filler cap with cloth and open carefully. — Open filler cap on coolant expansion tank.
7. Take off engine cover panel (arrows).
8. Detach air cleaner cover (arrow).
9. Unscrew bolts (arrows).
10. Remove air ducts (1) and (2).
11. Remove front bumper General body repairs, exterior63.
12. Remove bolts (arrows) securing exhaust pipe for auxiliary/additional heater to noise insulation.
13. Remove noise insulation (arrows).
14. Unbolt bracket for noise insulation (arrows).
15. Detach exhaust system at gearbox bracket (arrow). [Note: The flexible pipe connection (de-coupling element) on the front exhaust pipe must not be bent more than 10° - otherwise it can be damaged.]
16. Unscrew coolant pipe for power steering hydraulic fluid (arrows) and move clear to side; do not open hydraulic fluid circuit.
17. Tighten bracket for outside temperature sensor back on finger-tight.
18. Place drip trayV.A.G 1306 under engine.
19. Turn drain plug (arrow) on radiator anti-clockwise, if necessary fit drain hose to connection.
20. Detach coolant hose (bottom) from radiator by releasing retaining clip (arrow).
21. Unplug electrical connector (1) at radiator fan thermal switch F18/F54 at radiator (bottom left) and move wiring clear.
22. Also disconnect coolant hose (bottom) at oil cooler (arrow), and drain off remaining coolant. [Note: Note the rules for cleanliness when working on the automatic gearbox Automatic gearbox 01N37.]
23. Place the drip tray underneath.
24. Disconnect ATF pipes (arrows).
25. Unbolt bracket for ATF pipes (left-side) at engine.
26. Unclip and disconnect green electrical connector (arrow) for magnetic clutch of air conditioner compressor at lock carrier (bottom right) and move wiring clear.
27. Detach coolant hose (top) from radiator by releasing retaining clip (arrow).
28. Unplug electrical connector (arrow) for headlights on both sides.
29. Remove cover for power steering reservoir and unplug electrical connectors (1 … 5).
30. Move wiring harness clear.
31. Unplug electrical connector (2) for indicator lights on both sides.
32. Unplug electrical connector (1) at both horns and move wiring clear. [Note: To prevent damage to the condenser and refrigerant pipes/hoses, ensure that the pipes and hoses are not stretched, kinked or bent.]
33. ⚠ Refrigerant circuit of air conditioner must not be opened. — Unscrew bolts (4) for air ducts (left and right) at radiator and detach air ducts.
34. Unscrew securing bolts (1) and (2) for condenser.
35. Unplug the electrical connector (3) at low-pressure switch for air conditioner F73.
36. Pull condenser up out of its bracket, pivot to side and secure to right-side front wheel with wire.
37. Pull bonnet seals away from lock carrier and wing panels. [Note: Protect wing panels from damage.]
38. Remove bolts (left and right) (arrows).
39. Disconnect bonnet lock cable at bonnet lock.
40. Unscrew bolts from impact absorbers (arrows) (left and right). [Note: A second mechanic is required for removing the lock carrier.]
41. Remove lock carrier and place down in a secure position.
42. Unplug electrical connector (1) at secondary air pump motor V101.
43. Unplug electrical connectors (3) and (5) for solenoid valve 1 for activated charcoal filter system N80 and air mass meter G70.
44. Disconnect the solenoid valve 1 for activated charcoal filter system N80(Item 2) at air cleaner housing.
45. Detach hose connection going to secondary air pump motor V101(arrow).
46. Release hose clip (4) for air pipe at air mass meter.
47. Unscrew bolt (1) and remove air cleaner housing.
48. Unbolt catalytic converter from exhaust manifold (arrows).
49. Detach exhaust system from flange for exhaust manifold.
50. Press the release tabs (arrows) and detach the hose at pipe going to combination valve for secondary air system. [Note: Ignore item marked (1).]
51. Detach coolant hoses (1) and (3).
52. Unbolt coolant expansion tank (2)(arrows).
53. Disconnect electrical wiring for coolant shortage indicator switch F66 at coolant expansion tank (bottom).
54. Detach vacuum hose (1) leading to solenoid valve 1 for activated charcoal filter system N80.
55. Detach vacuum hose (2) going to brake servo at intake manifold.
56. Remove cover for electronics box in plenum chamber (arrows).
57. Carefully lever off the retaining strap with a screwdriver (arrow).
58. Release retainer tabs (arrows) and unplug connectors (1) and (2) from engine control unit.
59. Release retainer (arrow) and pull auxiliary relay carrier in electronics box upwards to remove.
60. Detach rear connectors on connector console.

Other AUDI procedures

• Testing fuel pump relay and activation
• Testing engine speed adaption when air conditioner cuts in
• Testing air mass meter (vehicles with intake manifold change-over function)
• Removing and installing fuel gauge sender -G
• Testing fuel gauge sender
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