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.
1 - A/C Compressor Regulator
Valve -N280-
❑ Do not remove.
❑ Check activation and
function. Refer to
⇒ “4.1 A/C Compressor
Regulator Valve N280 ,
Checking Switch-On
Signal“, page 76 .
Note
2 - A/C Compressor
❑ Remove A/C compres‐
sor from and reinstall
onto the bracket (4 or 6
cylinder engine). Refer
to
⇒ “5.1 A/C Compressor,
Removing From Brack‐
et“, page 103 .
❑ A/C Compressor, 5 cyl‐
inder, removing from
and installing on brack‐
et, engine). Refer to
⇒ “5.2 A/C Compressor,
Removing From Brack‐
et“, page 106 .
❑ A/C compressor refrig‐
erant line, disconnect‐
ing and reconnecting,
refer to
⇒ “5.18.1 A/C Compres‐
sor Refrigerant Lines“,
page 154 .
Note
❑ Remove ribbed belt. Refer to ⇒ Engine, Mechanical; Rep. Gr. 13 ; Removal and Installation .
❑ A/C compressor, removing and installing, refer to ⇒ “5.18.2 A/C Compressor“, page 157 .
❑ Depending on time period of production and on engine, compressor construction type may vary. Refer
to Electronic Parts Catalog (ETKA).
❑ At the start of production, the A/C compressors manufactured by “Denso“ (type “6 SEU 14“) were instal‐
led. A/C compressors from other manufacturers (for example “Sanden“, type “PXE 16“ or “ZJX“) can be
installed later. Refer to ⇒ Refrigerant R134a Servicing; Rep. Gr. 00 ; Description and Operation and
Electronic Parts Catalog (ETKA).
❑ These A/C compressors are available as replacement parts with different oil fill capacities, therefore note
capacity on A/C compressor. Refer to⇒ Refrigerant R134a Servicing; Rep. Gr. 00 ; Specifications and
the exact part number, refer to Electronic Parts Catalog (ETKA).
Note
❑ If a new compressor has been installed or new refrigerant oil has been put into the A/C compressor (for
example, after blowing through the A/C system), the A/C compressor must be turned by hand approxi‐
mately 10 revolutions. This ensures that the compressor is not damaged when activated.
3 - Belt Pulley
❑ Replacing, refer to ⇒ “1.1 A/C Compressor Belt Pulley, Replacement“, page 24 .
❑ Ribbed belt, removing and installing, refer to⇒ Engine, Mechanical; Rep. Gr. 13 ; Removal and Instal‐
lation .
❑ Ribbed belt routing, refer to Electronic Parts Catalog (ETKA).
Audi TT 2007 ➤
Heating, Ventilation and Air Conditioning - Edition 01.2011
64 Rep. Gr.87 - Air Conditioning
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