belt AUDI A4 1999 B5 / 1.G AWM Engine Cooling System Components Workshop Manual

19-13

Removing

Engine in vehicle.
Lock carrier must be in service position
Page 13
-1 .

- Drain coolant Page 19
-4 .

- Remove ribbed belt and tensioner for ribbed belt
Page 13
-18
.

- Secure pulley for viscous fan with pin punch -1- and unfasten using
Allen key -2-.
- Remove viscous fan from mounting.

- Remove engine cover -arrows-.
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19-14

- Mark direction of rotation of belt with chalk or felt
pen.

- Remove top and center toothed belt guard
Page 13
-35
.

- Set crankshaft to markings for TDC of No. 1 cylinder by turning central
bolt on crankshaft sprocket in direction of rotation -arrows-.

Note:
Only tension pressure piston of tensioner until the piston is secured with
pin T40011. - Thread socket head fastener T10092 into tensioner for toothed belt.
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19-15

- Take toothed belt off camshaft sprocket and
coolant pump.

Note:

The vibration damper and lower toothed belt
guard do not have to be removed.
The toothed belt should be left in position on
the crankshaft sprocket.
Before removing the coolant pump, cover
toothed belt with a cloth to protect from coolant.

- Remove coolant pump securing bolts -1- and remove coolant pump -2-.
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19-16

Installing
Installation is carried out in the reverse order of
removal; note the following:

Note:
Always replace seals and gaskets.

- Clean and smooth down sealing surface for O-
ring as required.

Note:
Observe all instructions on removing and installing the toothed belt
Page 13
-40
. - Lightly coat new O-ring -3- with coolant G 012 A8 D.
- Install coolant pump -2-.

Installation position: Sealing plug in housing faces downward.
- Tighten bolts -1- of coolant pump to 15 Nm.
- Install toothed belt (adjust valve timing) Page 13
-44
.
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19-17

- Install ribbed belt and tensioner for ribbed belt
Page 13
-20
.

- Install viscous fan Page 13
-21
.

- Install lock carrier Page 13
-1 .

- Top up coolant Page 19
-7 .

Tightening torque

Component

Nm
Coolant pump to cylinder block 15
Center section of toothed belt guard to
cylinder block
10
1)
Hose clamps for coolant hoses 2

1) Install with locking fluid D 000 600 A2
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19-18

Coolant thermostat, removing and
installing, checking


Removing

- Observe or obtain radio code on vehicles with
coded radio.

- Disconnect Ground strap at battery with ignition
switched off.

- Drain coolant Page 19
-4 .

Note:
Connector -2- remains plugged in. - Remove air duct hose -1-.

- Loosen ribbed belt by turning tensioner in direction of arrow.
- Remove ribbed belt from Generator pulley.
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19-21

- Install viscous fan Page 13
-21
.

- Install ribbed belt and tensioner for ribbed belt
Page 13
-20
.

- After connecting battery, enter anti-theft code for
radio.

Radio operating instructions
- Close windows fully using power window
switches.

- Actuate all power window switches again for at
least one second in the "close" direction to
activate automatic open/close function.

- Set clock to correct time.

- Top up coolant Page 19
-7 .
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