1998 AUDI A4 coolant

15-14

Removing oil seal at Hall sensor (left cylinder
head)

Note:
Leave coolant hoses connected. - Detach coolant reservoir -arrows- and move clear to side.
- Unplug connector from coolant level monitor.
- Move wiring harness clear at bulkhead.

- Unbolt bracket -arrows- for plug connectors on bulkhead and move
clear to side.
Pa
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15-18


Note:
Leave coolant hoses connected. - Remove coolant reservoir -arrows- and move it clear to the side.
- Unplug connector from coolant level monitor.
- Move wiring harness clear at bulkhead.

- Unbolt bracket -arrows- for plug connectors on bulkhead and move
clear to the side.
- Unbolt Hall sensor housing (10 Nm).
- Remove bolt securing Hall sensor rotor (20 Nm) and carefully lever off
rotor using a screwdriver.
Pa
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15-23


Note:
Leave coolant hoses connected. - Remove coolant reservoir -arrows- and move it clear to the side.
- Unplug connector from coolant level monitor.
- Remove cover panel from cylinder head cover (cylinder bank 4 - 6).

Note:
Plug lower section of intake line. - Release hose clamp -arrow-.
- Remove intake line -1-.
- Disconnect hose -2-.
- Detach water line -3-.
Pa
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15-36


- 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.
Pa
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15-38


Note: - Unbolt coolant line at front of cylinder head -arrows-.
- Unbolt cylinder head cover.
- Loosen and remove cylinder head bolts in opposite sequence to
tightening sequence using special tool 3452 (Polidrive).
- Carefully lift off cylinder head.

Use special tool 3452 together with a normal commercial 10 mm socket
when removing and installing.
Pa
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15-39

Installing

Notes:

Do not allow any oil or coolant to remain in the
blind holes for the cylinder head bolts in the
cylinder block.
Replace cylinder head bolts.
Connecting vacuum hoses Page 10
-28
.
When installing a new cylinder head:

- Screw in centering pin for intake manifold.
The cylinder head supplied as a replacement
part can be used on both sides (left or right). But
a sealing cap (core plug) must be installed in the
front end of the cylinder head in each case.

- Coat outside circumference of sealing cap (core
plug) with sealant AMV 188 001 02.

- Using drift VW 295, knock in sealing cap (core plug) until outside rim is
flush with end of chamfer in cylinder head.
Pa
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15-53

Installing

Notes:

Do not allow any oil or coolant to remain in the
blind holes for the cylinder head bolts in the
cylinder block.
Install new cylinder head bolts.
Connecting vacuum hoses Page 10
-28
.
When installing a new cylinder head:

- Screw in centering pin for intake manifold.
The cylinder head supplied as a replacement
part can be used on both sides (left or right). But
a sealing cap (core plug) must be installed in the
front end of the cylinder head in each case.

- Coat outside circumference of sealing cap (core
plug) with sealant AMV 188 001 02.

- Using drift VW 295, knock in sealing cap (core plug) until outside rim is
flush with end of chamfer in cylinder head.
Pa
ge 53 of 99 Valve
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pair&id=AUDI.B5.GE05.15.1

15-59


Note:
Leave coolant hoses connected. - Remove coolant reservoir -arrows- and move it clear to the side.
- Unplug connector from coolant level monitor.
- Remove cover panel from cylinder head cover (cylinder bank 4 - 6).

Note:
Plug lower section of intake line. - Release hose clamp -arrow-.
- Remove intake line -1-.
- Disconnect hose -2-.
- Detach water line -3-.
Pa
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11/21/2002 htt
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yp
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pair&id=AUDI.B5.GE05.15.1