Audi TT (2007 year). Manual - part 26

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.

• Pointer -2- on tensioner roller must be centred between tabs

-1- and -3- on base plate.

Note

The maximum permissible sideways deviation from the specified

position is 5 mm.

♦ Re-adjust valve timing if requirements are not met

⇒ page 95

 .

♦ If requirements are met, continue with procedure after adjust‐

ing valve timing correctly as described below 

⇒ page 95

 .

Re-adjusting valve timing:
– If camshaft hub cannot be locked, withdraw crankshaft stop -

T10050- until pin is clear of bore.

– Turn crankshaft in opposite direction of engine rotation slightly

past “TDC”.

– Now turn crankshaft slowly in direction of engine rotation until

it is possible to lock camshaft hub.

– Loosen bolts for camshaft sprocket after locking hub.

A - If pin of crankshaft stop -T10050- is on left side of bore:
– Then turn the crankshaft in direction of engine rotation until the

pin -arrow- on the crankshaft stop engages in the sealing

flange as the crankshaft rotates.

– Tighten camshaft sprocket bolts to 20 Nm.
B - If pin of crankshaft stop -T10050- is on right side of bore:
– Turn crankshaft slightly in opposite direction to engine rota‐

tion.

– Turn crankshaft in direction of engine rotation again until pin

of crankshaft stop engages in sealing flange as crankshaft ro‐

tates.

– Tighten camshaft sprocket bolts to 20 Nm.
Procedure after adjusting valve timing correctly:
– Remove diesel injection pump locking pin -3359- and crank‐

shaft stop -T10050- .

– Turn crankshaft two rotations in direction of engine rotation by

turning bolt for crankshaft sprocket until crankshaft is just be‐

fore “TDC”.

– Check valve timing once again 

⇒ page 94

 .

1. Toothed belt drive    

95

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.

– If camshaft hub can now be locked, tighten camshaft sprocket

bolts -1- to final torque 

⇒ Item 8 (page 84)

 .

– Tighten bolts -2- for high-pressure pump sprocket to final tor‐

– Check valve timing once again 

⇒ page 94

 .

Assembling
Installation is carried out in the reverse order; note the following:

Note

♦

Renew seals and/or gaskets.

♦

Secure all hose connections with the correct type of hose clips

(same as original equipment) ⇒  Electronic parts catalogue .

– Install vibration damper 

⇒ page 49

 .

66 .

– Install coolant pipe (right-side) 

⇒ page 186

 .

96

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.

2

Cylinder head

Note

Audi TT models with a TDI engine (2.0 ltr. 4-valve common rail)

are always equipped with steel glow plugs.

2.1

Cylinder head cover - exploded view

1 - Bolts

❑ 5 Nm

2 - Fuel rail

❑ Observe rules for clean‐

liness 

⇒ page 5

❑ Do not attempt to bend

high-pressure pipes to a

different shape

❑ Installing high-pressure

3 - Bolt

❑ Tightening torque ⇒ 

4 - Injector

❑ Observe rules for clean‐

liness 

⇒ page 5

❑ Removing and installing

5 - Bolt

❑ Tightening torque ⇒ 

6 - Cover for injector
7 - Bush for fuel rail

❑ Renew if damaged or

leaking

8 - Nut

❑ Tightening torque ⇒ 

9 - Clamping piece
10 - Cable guide
11 - Cylinder head cover

❑ Removing and installing 

⇒ page 98

12 - Gasket

❑ Renew if damaged or leaking

13 - Bolt

❑ Renew if seal is damaged
❑ Tightening torque and sequence 

⇒ page 98

14 - Sealing cap
15 - Heat shield

2. Cylinder head    

97

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 cover - tightening torque and sequence
– Tighten bolts for cylinder head cover in the sequence -1 ... 7-

to 9 Nm.

2.2

Removing and installing cylinder head

cover

Removing
– Remove engine cover panel -arrows-.

– Unplug electrical connector -2- on exhaust gas pressure sen‐

sor 1 -G450- .

Note

Ignore items marked -1- and -arrows-.

– Unfasten clips -arrows- and press toothed belt cover (top) to

right side.

98