Audi TT (2007 year). Manual - part 27

Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not 
 permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability 
     with respect to the correctness of information in this document. Copyright by AUDI AG.

-arrows-.

– Press release tabs and disconnect crankcase breather hose

-1- from cylinder head cover.

Note

Ignore items marked -2- and -arrows-.

– Remove bolts -arrows- and detach fuel rail from cylinder head

cover.

– Slacken cylinder head cover bolts in the sequence -7 ... 1-.
– Remove bolts and take off cylinder head cover.
Installing
Installation is carried out in the reverse order; note the following:

Note

♦

Renew gasket for cylinder head cover if damaged.

♦

Renew bolts for cylinder head cover if seals on bolts are dam‐

aged.

– Tighten cylinder head cover bolts 

⇒ page 98

 .

2. Cylinder head    

99

Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not 
 permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability 
     with respect to the correctness of information in this document. Copyright by AUDI AG.

– Make sure that cylinder head cover is clipped properly to

toothed belt cover.

Note

For illustration purposes, the installation position is shown with

the camshaft sprocket removed.

– Use screwdriver to press clips -arrows- on toothed belt cover

onto cylinder head cover until they engage with a click.

– Make sure there is a clearance between hub and toothed belt

cover.

2.3

Cylinder head - exploded view

1 - Cylinder head

❑ Removing and installing

⇒ page 102

❑ After removal, the cylin‐

der head must not be

put down on the gasket

side with the glow plugs

still installed, because

the glow plugs project

slightly beyond the gas‐

ket surface

❑ Checking for distortion

⇒ page 101

❑ Must not be machined
❑ If renewed, change

coolant and engine oil

2 - Washer
3 - Bolt

❑ Renew
❑ Correct sequence when

slackening 

⇒ page 111

❑ Tightening torque and

sequence 

⇒ page 102

4 - Centre hex stud

❑ Renew
❑ 20 Nm + 90°

5 - Engine lifting eye
6 - Gasket

❑ Renew

7 - Exhauster pump

❑ Removing and installing

8 - Bolt

100

Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not 
 permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability 
     with respect to the correctness of information in this document. Copyright by AUDI AG.

9 - Connection
10 - Bolts

❑ Tightening torque 

⇒ Item 19 (page 175)

11 - Gasket

❑ Renew

12 - Bolts

❑ Renew
❑ 20 Nm + 90°

13 - Engine lifting eye
14 - Cylinder head gasket

❑ Renewing 

⇒ “2.4 Removing and installing cylinder head”, page 102

❑ Identification 

⇒ page 101

❑ If renewed, change coolant and engine oil

15 - Hall sender -G40-

❑ For camshaft position

16 - Bolt

❑ Apply locking fluid when installing; refer to ⇒  Electronic parts catalogue
❑ 10 Nm

Checking cylinder head for distortion
– Use straight edge and feeler gauge to measure cylinder head

for distortion at several points.

• Max. permissible distortion: 0.1 mm.

Note

Cylinder heads must not be reworked on TDI engines.

Identification of cylinder head gasket
1 - Part number
2 - Holes
3 - Ignore

Note

♦

Cylinder head gaskets of different thicknesses are fitted de‐

pending on the amount of piston projection 

⇒ page 81

 .

♦

When renewing only the cylinder head gasket, the new gasket

should have the same identification as the old one.

2. Cylinder head    

101

Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not 
 permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability 
     with respect to the correctness of information in this document. Copyright by AUDI AG.

Cylinder head - tightening torque and sequence

– Renew cylinder head bolts.

– Tighten bolts in the sequence -1 ... 10- in 4 stages as follows:

1.

Tighten to 30 Nm.

2.

Tighten to 50 Nm.

3.

Turn 90° further.

4.

Turn 90° further.

2.4

Removing and installing cylinder head

Special tools and workshop equipment required
♦ Removal lever -80 - 200-

♦ Guide pins -3070- with -3070/9-

♦ Counterhold tool -T10051-

102