1999 AUDI A4 belt

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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17-57


- Remove 4 bolts from upper section of oil pan.

- Remove following components before unbolting front sealing flange:
1 - Tensioning roller for toothed belt: 20 Nm
2 - Idler wheel: 45 Nm
3 - Toothed belt tensioner: 10 Nm
4 - Lever for toothed belt tensioner: 20 Nm
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17-63

Crankshaft oil seal - pulley end,
replacing


Removing

- 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 toothed belt Page 13
-4 .

- Remove sealing plug from hole in cylinder block
(left side).

-
Position crankshaft to TDC of No. 3 cylinder.
Crankshaft TDC drilling should be visible (or it
should be possible to feel the drilling) in sealing
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17-64

- Remove crankshaft toothed belt sprocket.

- Remove inner part of oil seal extractor 3203 two
turns (approx. 3 mm) out of outer part and lock
with knurled screw.

Installing - Lubricate threaded head of oil seal extractor, place it in position and,
exerting firm pressure, screw it in as far as possible into oil seal.
- Loosen knurled screw and turn inner part against crankshaft until oil
seal is pulled out.
- Place guide sleeve 3202/1 onto crankshaft journal.
- Slide dry seal over guide sleeve.

Then proceed as for removing, performing steps in reverse order. - Press oil seal in flush with installing sleeve 3265.
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