lock AUDI A4 1998 B5 / 1.G APB Engine Lubrication System Components User Guide

17-29

- Fill engine with oil.

Repair Manual, Maintenance


- Install lock carrier in normal position.

Repair Manual, Body Exterior, Repair Group
50


- Install bumper.

Repair Manual, Body Exterior, Repair Group
63

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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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17-31

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

- Fill up engine oil.

Repair Manual, Maintenance


- Install lock carrier in normal position.

Repair Manual, Body Exterior, Repair Group
50


- Install bumper.

Repair Manual, Body Exterior, Repair Group
63

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17-33

- Unbolt dipstick guide tube at front of cylinder
head (right side), and pull out of oil pan from the
top.

Repair Manual, Body Exterior, Repair Group 63

Repair Manual, Body Exterior, Repair Group 50
WARNING!
Hot steam can escape from the expansion tank when the filler cap is
opened. Cover the filler cap with a cloth and remove it carefully. - Remove noise insulation panel -arrows-.
- Remove bumper.
- Move lock carrier to service position.- Remove cap on coolant expansion tank.
- Place drip tray VAG 1306 below engine.

- Turn drain screw -arrow- on radiator anti-clockwise, if necessary install
drain hose to connection.
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17-38


- Remove hex socket head bolt -1- and securing nut -2-. Tightening
torque: 45 Nm
- Loosen bolt -3-. Tightening torque: 22 Nm.
- Take out alternator -4- from below.

1 - Remove air line -1-.
2 - Mounting for oil line and air conditioner lines
3 - Mounting on cylinder block
4 - Release hose clamp
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17-42

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

- Clean sealing surfaces; ensure that they are free
of oil and grease.

WARNING!

Wear protective goggles.

Note:
The oil pan must be installed within 5 minutes after applying silicone
sealant D 454 300 A2. - Remove any residues of sealant on oil pan and engine block using
plastic brush attachment, or similar.

- Cut off nozzle of tube at front marking (diameter of nozzle approx. 3
mm).

Thickness of sealant bead: 2 ... 3 mm
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17-43

Note:
The bead of sealant must not be thicker than 3
mm, as otherwise excess sealant may enter the
oil pan and block the strainer in the oil intake line.

Note:
Be particularly careful when applying the sealant around the rear sealing
flange -arrows in illustration-. - Make sure sealing surface is clean and then apply silicone sealant on
sealing surface of oil pan, as shown in illustration. (Illustration shows
position of sealant on cylinder block.)
- Locate oil pan in position immediately, and tighten all bolts securing oil
pan to cylinder block to 5 Nm initially.
- Tighten bolts securing oil pan to transmission to 45 Nm.
- Tighten bolts securing oil pan to cylinder block in diagonal sequence in
2 stages; tighten to 10 Nm when tightening second time.
- Tighten M10 bolts securing oil pan to cylinder block to 45 Nm.
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17-44

- Clean both sealing surfaces for lower section of
oil pan; ensure that they are free of oil and
grease.

Note:
Do not use any adhesive or sealant.

- Install new gasket on lower section of oil pan
and install on upper section of oil pan with two
diagonally opposite bolts.

- Tighten all securing bolts hand-tight.

- Tighten bolts to 10 Nm with torque wrench,
working from center outward.

- Install new seal on oil drain plug and tighten to
30 Nm.

Notes:

When installing the upper section of the oil pan
with the engine removed from the vehicle,
ensure that the oil pan is positioned flush with
the cylinder block at the flywheel end.
The sealant must be left to dry for about 30
minutes after installing the oil pan before engine
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17-45

- Fill with coolant Page 19
-19
.

- Fill engine with oil.

Repair Manual, Maintenance


- Install subframe.

Repair Manual, Suspension, Wheels,
Steering, Repair Group 40


- Install lock carrier in normal position.

Repair Manual, Body Exterior, Repair Group
50


- Install bumper.

Repair Manual, Body Exterior, Repair Group
63


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17-46

Tightening torques

Component

Nm
Upper section of oil pan to cylinder
block M6 10
M8 20
Lower section of oil pan to upper
section of oil pan 10
oil pan to transmission M8 25
M10 45
Coolant line to oil pan 10
Oil drain plug in lower section of oil
pan 30
Dipstick guide tube to cylinder head 25
Oil pump to cylinder block 25
Oil pump supply lines to upper
section of oil pan 10
Front sealing flange M6 10
Collar bolt M8 30
Bracket for coolant lines to oil pan 10
Coolant drain screw on engine 20
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