1996 AUDI A4 Engine Oil Level Checking Workshop Manual

23

Plenum chamber and water drain valve,
checking for debris, cleaning if
necessary


- Check plenum chamber for signs of debris, e.g.
from leaves,clean If necessary.

- Check water drain valves for debris and proper
operation; clean or replace if necessary.

Note:
The water drain valves must not be blocked by
wax or undercoating, and must close properly.

Position of the water drain valves:
left - below brake servo unit
right - below battery
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24


Lock carrier, moving into service position

Special tools

3369
1 -
45 Nm
2 -
45 Nm
3 -
10 Nm
4 -
10 Nm
5 -
Hole
For tool 3369
6 -
Hole in lock carrier
7 -
Hole in fender panel
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25


- Remove front bumper Repair Manual, Body
Exterior, Repair Group 63
.
- Undo 3 quick-release fasteners on noise
insulation at front.
- Remove air duct between lock carrier and air
cleaner (air duct is bolted to lock carrier).
- Remove retainer clips (if installed) for wiring
harness to left of radiator cowl.
- Remove bolt -2- on right and thread in special
tool 3369.
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26


- Thread special tool 3369 into hole -5- (left).
- Remove bolts -1- and -3-.
- Remove bolts -4- and pull whole lock carrier out
as far as it will go.
- Secure lock carrier with suitable M6 bolts in hole
-6- (lock carrier) and hole -7- (fender panel).
- When lock carrier has been installed, check that
wiring next to radiator is correctly routed.
- Install front bumper Repair Manual, Body
Exterior, Repair Group 63
.
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27

V-belt and ribbed belts, replacing (4-
cylinder engine AEB)


Lock carrier must be in service position Page 24


Removing

Vehicles with air conditioner

- Remove noise insulation Page 18
.

All models - Loosen securing bolts of tensioning roller for ribbed belt for A/C
compressor (arrows).
- Loosen ribbed belt and remove.

- To loosen ribbed belt, turn tensioning element in direction of arrow.
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28

Note:

The tensioning element for the ribbed belt can be locked in position by
inserting a suitable hex key (arrow) or mandrel 3204 into the securing
hole.
- Remove ribbed belt and release tensioning element.
- Secure belt pulley for viscous fan with an M5 x 60 bolt and unscrew
using an 8 mm hex key.

- Remove viscous fan.
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29


Installing
Installation is in the reverse order of removal. Also, note the following: - Remove V-belt pulley from coolant pump. Counterhold by inserting pin
(arrow) in pump pulley.
- Remove V-belt.
- Install V-belt on pulleys and assemble two sections of pulley on coolant
pump without tightening bolts.
- Tighten bolts securing two sections of pulley in stages while turning
coolant pump.
As bolts are tightened, V-belt should gradually move outward until
seated on running surface.
- Tighten bolts to 25 Nm.
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30

Note:
It is not possible to adjust the tension of the V-
belt for the coolant pump.

- Tighten viscous fan mounting to 45 Nm.

- Install ribbed belt over crankshaft pulley, viscous
fan pulley and power steering pump pulley. If
necessary, pull belt upward using a suitable tool.

Vehicles with air conditioner - Turn ribbed belt tensioning element in direction of arrow.
- Install ribbed belt over Generator pulley last. Release tensioning
element.
- Check that ribbed belt is properly seated.

Routing of ribbed belt Page 32

- Install ribbed belt for A/C compressor.

Routing of ribbed belt Page 32
- Apply torque wrench to hex on tensioning roller and tension with a
torque of 25 Nm
- Tighten bolts -A- to 20 Nm
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