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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
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– Connect one section of hose -A- on to upper connection.
– Hold a container -B- under the lower connection -C-.
– Using a compressed air gun -D-, carefully blow coolant out of
heater core (into container -B-).
– Disconnect refrigerant lines from expansion valve, refer to
⇒ “5.18.13 Refrigerant Lines, Disconnecting and Connecting
From Expansion Valve“, page 180 and secure (for example,
with cable tie) so they do not interfere during installation.
Note
♦
Seal open pipe connections.
♦
To seal off all open connections on expansion valve or evap‐
orator, sealing caps from a replacement expansion valve or a
replacement evaporator can be used (preventing dirt and
moisture from entering the system).
– Remove glove compartment, driver's side storage compart‐
ment, front part of center console and instrument panel. Refer
to⇒ Body Interior; Rep. Gr. 70 ; Removal and Installation .
Note
To prevent the instrument panel shell from damage, instrument
panel should be placed on a clean work bench which is covered
with clean cardboard.
– Remove both left and right footwell vents.
– Remove the fresh air blower -V2- . Refer to
⇒ “1.14 Fresh Air Blower Control Module J126 and Fresh Air
Blower V2 “, page 36 .
– Remove instrument panel crossmember (central tube). Refer
to ⇒ Body Interior; Rep. Gr. 70 ; Removal and Installation .
– Remove data bus on board diagnostic interface -J533- (se‐
cured to bracket -A- in area of steering column). Refer to ⇒
Electrical Equipment; Rep. Gr. 90 ; Removal and Installation .
– Remove bolts -B- and release bracket -A- from heater (bracket
remains on wiring harness secured to vehicle).
Audi TT 2007 ➤
Heating, Ventilation and Air Conditioning - Edition 01.2011
110 Rep. Gr.87 - Air Conditioning
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