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-
❑ Checking activation and
function. Refer to
⇒ “4.1 A/C Compressor
Regulator Valve N280 ,
Checking Switch-On
Signal“, page 76
1)
.
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
1)
.
❑ A/C Compressor, 5 Cyl‐
inder, removing from
and installing on brack‐
et. Refer to
⇒ “5.2 A/C Compressor,
Removing From Brack‐
et“, page 106
1)
.
❑ When installing refriger‐
ant lines/hoses and per‐
taining bracket, make
sure there is a sufficient
gap between belt,
bracket and belt pulley.
❑ Depending on time peri‐
od of production and on
engine, compressor
construction type may
vary. Refer to Electronic
Parts Catalog (ETKA).
❑ At the start of produc‐
tion, the A/C compres‐
sors manufactured by “Denso“ (type “6 SEU 14“) were installed. A/C compressors from other
manufacturers (for example “Sanden“, type “PXE 16“ or “ZJX“) can be installed later. Refer to ⇒ Refrig‐
erant R134a Servicing; Rep. Gr. 00 ; Specifications and Electronic Parts Catalog (ETKA).
❑ These A/C compressors are available as replacement parts with different oil fill capacities, therefore note
capacity on the A/C compressor and the exact part number. Refer to the Electronic Parts Catalog.
❑ Depending on A/C compressor type, different refrigerant oil fill capacities may be designated for the
refrigerant circuit. The reason for the different oil capacities in the A/C compressor for an otherwise
identical refrigerant circuit is the design of the compressor. Observe these oil capacities. Too much oil
in the circuit leads to higher pressures and reduces cooling performance of the system. Too little oil may
lead to lubrication problems in the compressor.
3 - Belt Pulley
❑
Replace
1)
. Refer to ⇒ “1.1 A/C Compressor Belt Pulley, Replacement“, page 24 .
❑
Ribbed belt, removing and installing
1)
. Refer to⇒ Engine Mechanical; Rep. Gr. 13 ; Removal and
Installation .
❑ Ribbed Belt Routing. Refer to Electronic Parts Catalog (ETKA).
Note
Audi TT 2007 ➤
Heating, Ventilation and Air Conditioning - Edition 01.2011
50 Rep. Gr.87 - Air Conditioning
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