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.
16 - Right Temperature Door Motor -V159-
❑ With Right Temperature Door Potentiometer/Actuator -G221- .
❑ Removing and installing, refer to
⇒ “5.8.6 Right Temperature Door Motor V159 “, page 137
Note
17 - Coolant Pipes To Heater Core
18 - Grommet
❑ For sealing any holes in the coolant/refrigerant lines through the plenum chamber bulkhead into the
engine compartment.
19 - Condensation Water Drain Connection
❑ Condensation water drain valve, checking, removing and installing, refer to
⇒ “4.5 Condensation Water Drain Hose, Checking“, page 92
.
20 - Expansion Valve
❑ Refrigerant lines, disconnecting and reconnecting, refer to
⇒ “5.18.13 Refrigerant Lines, Disconnecting and Connecting From Expansion Valve“, page 180
❑ Removing and installing, refer to
⇒ “5.18.10 Expansion Valve“, page 174
Note
2.3
Refrigerant Circuit Components Over‐
view
Note
♦
Repair work on refrigerant circuit, refer to
⇒ “1.18 Refrigerant Circuit, Repairs“, page 37
.
♦ All work or components marked with
1)
can be repaired, re‐
placed or performed in any workshop (work that does not
pertain to refrigerant circuit).
♦
All parts or work on the refrigerant circuit not identified with
1)
. as well as all refrigerant hoses and refrigerant lines can only
be repaired or replaced in a workshop equipped with the nec‐
essary tools and where the procedures are performed by
qualified personnel (the refrigerant circuit must be dis‐
charged). Refer to ⇒ Refrigerant R134a Servicing; Rep. Gr.
00 ; General Information .
HD = High-pressure end
ND = Low-pressure end
Audi TT 2007 ➤
Heating, Ventilation and Air Conditioning - Edition 01.2011
2. Description and Operation
49