Audi TT - Page 125

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.
5.6.3 Sanden A/C Compressor
Note
♦ Belt pulley is sensitive to impact. Handle it with special care
♦ If overload protection of pulley triggers, check the A/C com‐
pressor for ease of motion before replacing the pulley. If the
A/C compressor creates friction, replace it completely.
♦ To remove belt pulley, it depends on engine version if it is
necessary to remove A/C compressor from engine. Refer to
⇒ “5.1 A/C Compressor, Removing From Bracket“,
page 103 .
♦ Different versions of the belt pulley may be installed depending
on the A/C compressor and engine. Make sure to use the cor‐
rect allocation. Refer to the Electronic Parts Catalog.
– Perform preliminary work as for removing belt pulley, refer to
⇒ “1.1 A/C Compressor Belt Pulley, Replacement“, page 24 .
Replacing a version 1 belt pulley (installed in 5 cylinder TFSI ve‐
hicles)
1 - Hex Head Nut
Note
❑ To loosen and tighten
hex nut, hold belt pulley
firmly in place using a
standard band wrench
(with webbing).
❑ Clean threads of hex nut
and threads of A/C com‐
pressor shaft of old
thread locking com‐
pound before screwing
on.
❑ Install the hex nut with
thread locking com‐
pound (e.g. with D 000
600 A2). Refer to Elec‐
tronic Parts Catalog
(ETKA).
❑ Nut tightening specifica‐
tion: 25 Nm
2 - Screw
❑ To loosen and tighten
bolts, hold belt pulley
firmly in place using a
standard band wrench
(with webbing).
❑ Tightening specifica‐
tion: 12 Nm
❑ Clean old bolt locking
compound from thread
of bolts and threads of
belt pulley before screw‐
ing on.
❑ Install the bolts with
thread locking compound (for example, D 000 600 A2). Refer to the Electronic Parts Catalog.
Audi TT 2007 ➤
Heating, Ventilation and Air Conditioning - Edition 01.2011
5. Removal and Installation 121