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– Remove ESP Sensor Unit -G419- -A-. Refer to ⇒ Brake Sys‐
tem; Rep. Gr. 45 ; Removal and Installation .
– Loosen vehicle wiring harness fasteners -B- (for example, ca‐
ble ties -C-) on left of A/C unit.
– Remove both bolts -A- on bracket for wiring harness -B-.
– Disconnect the connector -C-.
– Remove condensation drain from A/C unit. Refer to
⇒ “4.5 Condensation Water Drain Hose, Checking“, page 92
– Loosen remaining vehicle wiring harness fasteners (for exam‐
ple with cable ties) at top of A/C unit.
– Disconnect all electrical connections between vehicle wiring
harness and the electrical components of A/C (on heater) at
harness connectors.
Note
The wiring harness air conditioner/heater is removed together
with the A/C unit (with the heater).
– Carefully pull right side of A/C (heater) unit slightly toward rear
(far enough that bolt -B- on the right bracket -A- can be loos‐
ened).
Note
♦
Only pull carefully on the A/C (heater) so that bracket -A- does
not break.
♦
To loosen bolt -B-, reach between A/C unit (heater) and floor
mat on right wheel housing (to make this possible, Fresh Air
Blower -V2- has been removed earlier).
– Remove bolts -B- and release bracket -A- from heater (bracket
remains on wiring harness secured to vehicle).
– Loosen securing ties of vehicle wiring harness on A/C (heater)
on the right side.
Audi TT 2007 ➤
Heating, Ventilation and Air Conditioning - Edition 01.2011
5. Removal and Installation
111