1995 AUDI A4 lug

Cylinder heads which have cracks between the
valve seats or between valve seat inserts and
the spark plug thread can be used further
without reducing service life, provided the
cracks do not exceed a maximum of 0.3 mm in
width, or when no more than the first 4 turns of
the spark plug threads are cracked.
Pa
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15-10


- Unplug vacuum hoses -1 to 3-.
- Disconnect connectors as follows:
4 - on intake air temperature sensor -G42-
5 - for throttle valve control module -J338-
- Remove the air duct hose -6- from throttle valve control module.

Note:
The electrical connectors and vacuum hoses do not have to be
disconnected. - Remove retaining plate for recirculation valve for turbocharger -N249- -
1- from underneath intake line and secondary air inlet valve -N112 -2- -
arrows-.
Pa
ge 11 of 42 C
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15-13

- Remove suction hose from flange and
remove.

Note:
Plug intake ports on cylinder head with clean
cloths.

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

Note:

All cable ties which are released or cut open
when removing must be located in the same
position when installing.
Hose connections and hoses of charge air
system must be free of oil and grease before
assembling.
Replace seals and gaskets.

- Top up coolant Page 19
-7 .

- After connecting battery, enter anti-theft code for
radio.
Pa
ge 14 of 42 C
ylinder head, removin
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15-33

Compression, checking


Special tools and equipment

Spark plug spanner 3122 B

Compression tester VAG VAG 1763
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ge 38 of 42 C
ylinder head, removin
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15-35

- Remove spark plugs with spark plug spanner
3122B.

- Disconnect connectors from all injectors.

- Fully open throttle valve.

- Check compression with compression tester
VAG VAG 1763.

Note:
Using the compression tester

Operating instructions
- Operate starter until tester shows no further
pressure increase.

Compression pressure values:

New


Wear limit


Permissible
difference between
cylinders

Pa
ge 40 of 42 C
ylinder head, removin
g and installin
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11/21/2002 htt
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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
Pa
ge 42 of 42 C
ylinder head, removin
g and installin
g
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE06.15.1