Audi TT (2007 year). Manual — part 13
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.
13 – Crankshaft group
1
Cylinder block (pulley end)
1.1
Poly V-belt drive with tensioner and air conditioner compressor - exploded
view
1 - Poly V-belt
❑ Check for wear
❑ Before removing, mark
direction of rotation with
chalk or felt-tip pen
❑ Removing and installing
❑ Do not kink
❑ When installing, make
sure it is properly seated
on pulleys.
2 - Poly V-belt tensioner
❑ Removing and installing
3 - Vibration damper
❑ With poly V-belt pulley
❑ Installation position:
hole in vibration damper
must be positioned over
raised section of crank‐
shaft sprocket
❑ Removing and installing
4 - Bolt
❑ Renew
❑ Use only genuine bolts
⇒ Electronic parts cata‐
logue
❑ 10 Nm + 90°
5 - Bolt
❑ Tightening torque ⇒
6 - Dowel sleeve
❑ Ensure correct seating in bracket for ancillaries
7 - Bolt
8 - Bolt
❑ Tightening torque
9 - Idler roller
❑ For toothed belt
10 - Bolt
❑ Tightening torque
1. Cylinder block (pulley end)
43
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.
11 - Idler roller
❑ For toothed belt
12 - Bracket for ancillaries
❑ Removing and installing
13 - High-pressure pump
14 - Bolt
❑ 23 Nm
15 - Bolt
❑ Tightening torque and sequence
16 - Alternator
17 - Bolt
18 - Air conditioner compressor
19 - Bolt
20 - Dowel sleeve
❑ Ensure correct seating in bracket for ancillaries
Bracket for ancillaries - tightening torque and tightening sequence
– Renew bolts for bracket for ancillaries and fit as follows:
♦ Bolts -1- and -2- M10x52.
♦ Bolts -3- and -6- M10x30.
♦ Bolts -4- and -5- M10x60.
– Tighten bolts for bracket for ancillaries in the sequence
-1 ... 6- in 4 stages as follows:
1.
Screw in all bolts by hand until they make contact.
2.
Tighten all bolts to 40 Nm.
3.
Turn bolts -3- and -6- 45° further.
4.
Turn bolts -1, 2, 4, 5- 90° further.
1.2
Removing and installing poly V-belt - ve‐
hicles with tensioner and air conditioner
compressor
Special tools and workshop equipment required
44
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.
♦ Locking pin -T10060 A-
Removing
– Release fasteners -1 ... 4- and remove centre noise insulation.
– Release fasteners -arrows- and remove right wheel housing
liner (bottom section).
1. Cylinder block (pulley end)
45
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.
Caution
If a used belt runs in the opposite direction when it is refitted,
this can cause breakage.
♦ Before removing, mark direction of rotation of poly V-belt
with chalk or felt-tipped pen for re-installation.
– To slacken poly V-belt turn tensioner in clockwise direction
-arrow-.
– Lock tensioner with locking pin -T10060 A-
– Take off poly V-belt.
Installing
Installation is carried out in the reverse order; note the following:
Note
Before fitting poly V-belt, make sure all mechanical units (e.g. al‐
ternator and air conditioner compressor) are firmly in position.
– Fit poly V-belt on all poly V-belt pulleys:
1 - Crankshaft
2 - Tensioner
3 - Alternator
4 - Air conditioner compressor
– Hold tensioner with ring spanner and remove locking pin -
T10060 A- .
– Slacken tensioner.
– Check that poly V-belt is properly seated.
– Start engine and check that belt runs properly.
– Install right wheel housing liner (bottom section) and noise in‐
46
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