Audi TT - Page 116

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– Disengage both flanges for coolant pipes to heater core -A-
and for expansion valve (to evaporator) -B- from pass-
throughs of grommet -C-.
Note
♦ When removing A/C unit (heater), make sure the two coolant
pipes of the heater core do not get caught and bent or dam‐
aged on plenum chamber or noise insulation mat.
♦ Observe wiring harness, individual electrical wiring connec‐
tions may get damaged when pulling on harness.
– Remove A/C unit (heater) -A- towards passenger side.
Installation
Installation is carried out in the reverse order while noting the fol‐
lowing:
– Two technicians are needed to install the A/C unit (heater).
Note
♦ Before installing, check all gaskets and seals on A/C (heater)
for damage and replace if necessary.
♦ Check securing of coolant pipes to heater core.
– Insert the molded seal -A- (working outward from the passen‐
ger compartment) into rear wall of the plenum chamber -B-,
make sure that reinforcement -C- (wire bracket) is positioned
correctly in the molded seal -A-.
Note
On vehicles without A/C system (heater only), insert molded seal
-A- (working from passenger compartment) into rear wall of the
plenum chamber -B-; make sure that molded seal -A- is positioned
properly in rear panel.
– Ask a colleague for assistance when installing the A/C unit
(heater).
Audi TT 2007 ➤
Heating, Ventilation and Air Conditioning - Edition 01.2011
112 Rep. Gr.87 - Air Conditioning