belt AUDI A4 1997 B5 / 1.G APB Engine Lubrication System Components Workshop Manual

17-2


Crankcase breather and oil spray jets,
removing and installing

Removing and installing oil pump, oil pan, oil filter
and oil cooler Page 17
-32

1 -
Bolt, tightening torque: 20 Nm
2 -
Washer
3 -
Tensioning roller
4 -
Bolt, tightening torque: 45 Nm
5 -
Idler wheel
For toothed belt
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17-7


Notes: Fig. 1 Securing tensioner in position before removing
- Using a hex key, turn toothed belt tensioning roller -1- clockwise 8 mm
in direction of arrow until tensioning lever -2- compresses tensioner -3-
far enough to enable a 2 mm dia. spring pin to be inserted in drilling
and in plunger.
The toothed belt tensioner is oil-damped and can only be compressed
slowly by applying gradual pressure. Use spring pin from 2024 A.
- Insert spring pin and release toothed belt tensioning roller.
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17-14

- Mark direction of rotation of ribbed belt.

Note:
Mark direction of rotation of ribbed belt. The belt can break if it runs in the
opposite direction when reinstalled. - To slacken ribbed belt, turn to the right using a 17 mm ring spanner
until the two holes are aligned with each other -arrow- and hold in
position with mandrel 3204.
- Take off ribbed belt.

- Disconnect water hoses -1- and -2-.
- Remove coolant reservoir (arrows).
- Disconnect connector for coolant level monitor.
- Remove cover panel from cylinder head cover (cylinder bank 4-6).
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17-20


Note:
Watch position of retaining strips -2-. - Remove pressure lines -1-.

- Remove tensioner -1- for ribbed belt.
- Remove toothed belt guards -2- (left and right).
- Remove toothed belt guard -3- (center).
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17-22

Notes:

Mark the direction of rotation of the toothed belt
with chalk or felt pen before removing. A used
belt can break if it rotates in the wrong direction
when reinstalled.
The toothed belt tensioning element is oil-
damped and can therefore only be compressed
slowly by applying constant pressure.

- Using a hex key, turn toothed belt tensioning roller -1- clockwise 8 mm
in direction of arrow until tensioning lever -2- compresses tensioning
element -3- sufficiently to enable special tool T 400 11 to be installed in
drilling and in plunger.
- Insert special tool T 400 11 and release toothed belt tensioning roller.
- Insert camshaft clamp 3391 in the securing plates of the two
camshafts.
- Loosen both camshaft bolts and remove approx. 5 turns.
- Take out camshaft clamp 3391.

- Pull off both camshaft sprockets with special tool T40001.
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17-23


- Unbolt rear left toothed belt guard -arrows-.
- Detach intake manifold using special tool 3249.

- Unbolt cylinder head lifting bracket with coolant line -arrows- from
cylinder head.
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17-25

Installing
Install in the opposite order to removing. When
installing, note the following points:

- Install lock carrier

Repair Manual, Body Exterior, Repair Group
50


- Install bumper

Repair Manual, Body Exterior, Repair Group
63


- Fill with coolant Page 19
-19
.

Component

Nm
Bolts M6 10
Bolts M8 20
Toothed belt sprocket to camshaft 55
Intake manifold to cylinder head 10
Oil check valves 25
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17-26

Lower section of oil pan, removing and
installing


Special tools, testers and auxiliary items

Drip tray VAG 1306

Repair Manual, Body Exterior, Repair Group 63

Repair Manual, Body Exterior, Repair Group 50 - Remove noise insulation panel -arrows-.
- Remove bumper.
- Move lock carrier to service position.- Remove ribbed belt Page 13
-1 .

- Unbolt air conditioner lines from pan -arrow-.
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17-30

Chain tensioner for oil pump, checking

The chain tensioner incorporates a leaf spring.
To check the spring tension, the lower section of
the oil pan must be removed.

- Remove bumper

Repair Manual, Body Exterior, Repair Group
63


- Move lock carrier to service position.

Repair Manual, Body Exterior, Repair Group
50


- Remove ribbed belt Page 13
-1 .

- Remove lower section of oil pan Page 17
-
26


If no spring tension can be felt and the chain is not being tensioned, this
means the chain tensioner is malfunctioning and must be replaced. - Insert a screwdriver between chain and chain tensioner and press
screwdriver against chain tensioner.
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17-55

Front sealing flange and oil pump drive
chain, removing and installing


Removing

- Remove ribbed belt Page 13
-1 .

- Remove toothed belt Page 13
-4 .

- Drain engine oil.

Use a separate container to collect the engine
oil.
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