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.
Note
♦
Expansion valve is available in different versions (same hous‐
ing but a different control characteristic), therefore ensure the
exact allocation. Refer to Electronic Parts Catalog (ETKA).
♦
Coat the O-ring seals lightly with refrigerant oil prior to instal‐
lation. Refer to ⇒ “1.21 Refrigerant Circuit O-rings“, page 41 .
♦
If heat protection insulation -C- is missing or not installed cor‐
rectly, it can cause reduced performance of the A/C system
(change of adjusted control characteristic of expansion valve
due to radiant heat).
– Install refrigerant lines on the A/C compressor. Refer to
⇒ “5.18.13 Refrigerant Lines, Disconnecting and Connecting
From Expansion Valve“, page 180 .
– Discharge and fill the refrigerant circuit. Refer to ⇒ Refrigerant
R134a Servicing; Rep. Gr. 00 ; Description and Operation (A/
C Service Station).
– Install remaining components.
– Operate the A/C system after filling the refrigerant circuit. Re‐
fer to
⇒ “1.4 A/C System, Operating After Filling Refrigerant Circuit“,
page 28 .
Note
Note the information regarding operating the A/C system after
filling. Refer to ⇒ Refrigerant R134a Servicing; Rep. Gr. 00 ;
Description and Operation (A/C Service Station).
5.18.11 Fluid Reservoir
Does not apply to condensers, which have an attached reservoir.
Audi TT 2007 ➤
Heating, Ventilation and Air Conditioning - Edition 01.2011
5. Removal and Installation 175
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