ignition AUDI A4 1999 B5 / 1.G AWM Engine Cylinder Head Remove And Install Workshop Manual

15-3


3 -
Oil deflector
Note installation position
4 -
Cylinder head bolt Always replaceNote sequence when loosening Page 15
-27

Note sequence when tightening Page 15
-30

5 -
Cylinder head cover
Removing and installing Page 15
-15
6 -
Ignition coil
7 -
Cap
8 -
Gasket
Replace if damaged or leaking
9 -
10 Nm First tighten inner nutsTighten outer nuts diagonally
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15-9

Intake manifold, removing and installing


Removing

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

- Disconnect Ground strap at battery with ignition
switched off.

- Remove engine cover -arrows-.
- Drain coolant Page 19
-4 .

- Disconnect coolant hoses -1- and -3-.
- Unbolt coolant expansion tank -2- (-arrows-).
- Disconnect electrical wiring to coolant level display switch -F66- on
bottom of expansion tank.
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15-14

- 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.

- Perform throttle-valve control module
adaption:

Repair Manual, 1.8 Liter 4
-Cyl. 5V Turbo Fuel
Injection & Ignition, Engine Code(s): AWM , Repair Group 24


Tightening torques

Component

Nm
Intake manifold to cylinder head 10
Support for intake
manifold to intake
manifold 20
to bracket 20
Fuel manifold to intake manifold 10
Coolant line to coolant flange 10
Coolant line on intake line 10
Hose clamps for coolant hoses
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15-17


- Disconnect Ground wire -2-.
- Disconnect connectors -3-.
- Move lines and hoses aside.
- Remove ignition coils -1-.
- Loosen 2 top retaining clamps for toothed belt guard.

- Loosen nuts -arrows- for cylinder head cover and remove cylinder head
cover.
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15-21

Procedure

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

Note:
All cable ties which are released or cut open
when removing must be located in the same
position when installing.

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

- Disconnect Ground strap at battery with ignition
switched off.

- Drain coolant Page 19
-4 .

- Remove intake line Page 15
-9 .

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

- Remove air filter cover -arrow-.
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15-26


- Disconnec Ground wire -2-.
- Disconnect connectors -3-.
- Move lines and hoses aside.
- Remove ignition coils -1-.

- Loosen nuts -arrows- for cylinder head cover and remove cylinder head
cover.
- Remove both oil deflectors.
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ylinder head, removin
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Injection & Ignition, Engine Code(s): AWM , Repair Group 24

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15-34

Test conditions:

Engine oil temperature at least 30 C

Battery voltage at least 12.7 V

Test sequence

- Remove engine cover -arrows-.
- Switch ignition off.

- Disconnect connectors -3-.
- Remove ignition coils -1-.
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15-36

- Install spark plugs and ignition coils.

Note:
Replace gaskets for ignition coils if damaged.

- Check Diagnostic Trouble Code (DTC)
memory:

Repair Manual, 1.8 Liter 4
-Cyl. 5V Turbo Fuel
Injection & Ignition, Engine Code(s): AWM , Repair Group 01


Note:
DTCs will have been recorded in the DTC
memory because the connectors have been
unplugged. Check and, if necessary, erase the
DTC memory after completing the test.

Tightening torques

Component
Nm
Spark plugs in cylinder head 30
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