AUDI A4 1999 B5 / 1.G APB Engine Lubrication System Components Owner's Guide

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
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- Move lock carrier to service position.

Repair Manual, Body Exterior, Repair Group
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- 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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To replace oil pump chain tensioner, remove front sealing flange Page 17
-55
.
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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
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- Install bumper.

Repair Manual, Body Exterior, Repair Group
63

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17-32

Upper and lower sections of oil pan,
removing and installing


Special tools, testers and equipment
required

Engine support bracket 10-222A with adapter
10-222A/3
Drip tray VAG 1306
Electric drill with plastic brush attachment
Silicone sealant D 176 404 A2
Torque wrench 10 Nm/ 45 Nm

- Obtain radio theft code on vehicles with coded
radio.

- With ignition switched off, disconnect battery
Ground strap.

- Pull out dipstick.
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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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17-34


- Also open coolant drain screw -arrow- at rear right of oil pan.
- Draining off and filling up coolant Page 19
-19
.
- Drain off engine oil.
Use a separate container to collect the engine oil.

- Set up support bracket 10-222A with adapter 10-222A/3 on bolted
flanges for wing panels.
- Attach support bracket to front and rear lifting eyes on engine.
- Raise engine as far as possible with spindles of support bracket.
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17-35


- Cut open cable ties -arrows-, open retainer for starter cable and take
out cable.
- Unbolt torque reaction support at front of oil pan.
- Unbolt coolant line from oil pan.
- Disconnect connector from oil pressure switch on left of oil pan.

- Remove torque reaction support -1-.
- Release hose clamps -arrows-.
- Remove water line -2-.
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17-36

- Place drip tray VAG 1306 under engine.

- Remove oil filter.

- Release hose clamps -arrows-.
- Remove oil cooler -1-.

- Remove bottom nuts on engine mountings -1- (left and right sides).
- Mark positions of securing points -1- and locating sleeves -2- under
engine mountings on left and right sides.
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17-37


- First remove front subframe bolts -2- and -3- (left and right). Then
remove bolts -4-.
- Move anti-roll bar downward.
- Remove charge air cooler -2- on right side (release hose connection at
top, and 3 rubber mountings).

- Remove air duct from connector elbow on alternator -3-.
- Disconnect cable from terminal 30/B+ -1-. Tightening torque: 16 Nm
- Disconnect cable from terminal D+ -2-. Tightening torque: 4 Nm
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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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