Removal and installation the air filter (Audi A4 B6)

Table of contents: Air filter. Petrol engine 1.6 l ALZ ↓ Air filter. Petrol engine 2.0 l AWA ↓ Diesel engine 1.9 l ↓ Diesel engine 2.5 l ↓

To perform the procedure on gasoline engines, refer to the illustrations:

Air filter. Petrol engine 1.6 l ALZ

1 — Filter element
2 - Upper part of the air filter
3 - Air duct
4 — Seal. Replace if damaged
5 — Air mass meter with intake air temperature sensor. Tighten the bolts to torque 6Nm
6 - Screw, 2Nm
7 - Heat shield
8 - Support
9 - Lower part of the air filter
10 - Screw, 20nm
11 - Air ducts to the front panel

Air filter. Petrol engine 2.0 l AWA

1 - Self-tapping screw
2 - Air duct
3 - Air duct. To the front panel
4 - Clamp
5 — Sealing ring
6 — Lid
7 — Air mass meter
8 - Connecting hose
9 — Self-tapping screw
10 — Self-tapping screw
11 - Upper part of the air filter
12 — Air filter element
13 - Lower part of the air filter

Diesel engine 1.9 l

Removal

1. Remove the top engine cover and the vibration damper underneath, refer to Section Removal and installation the upper engine cover/lower engine compartment protection/subframe.

2. Remove the screws (arrows in the accompanying illustration).

2. Remove the screws (arrows in the accompanying illustration).

3. Remove the air duct (1) and (2).

4. Disconnect the air mass meter connector (1).

5. Disconnect the air supply hose (2), first opening the clamp.

6. Move aside the wiring harness at the air filter housing and remove the filter housing (arrow on the accompanying illustration).