Audi Q7 2007 Repair Manual page 305

– Mark arrangement of coolant hoses -A- and -B- to A/C unit.
– Clamp off the coolant hoses to the A/C unit heater core (for
example, using Hose Clamps up to Ø 25 mm - 3094- ) and
remove them.
– Release the grommet -C- from plenum chamber rear wall and
slide grommet -C- into the passenger compartment.
– Insert one section each of hose -A- and -B- on to both con‐
nections to heater core.
– Hold a container -C- under hose of lower connection -B-.
– Using a compressed air gun -D-, carefully blow coolant out of
heater core (into container -C-) via hose -A-.
– Remove dash panel complete with dash panel cross member.
Refer to ⇒ Body Interior; Rep. Gr. 70 .
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.
17.1.2 Front A/C Unit, Removing
Special tools and workshop equipment required
♦ Hose Clamps - Up To 25 mm - 3094-
♦ Compressed air gun, commercially available
♦ Cooling System Tester - VAG1274- (and corresponding
adapter)
Note
On removal, note down bolt lengths and assignment for in‐
♦
stallation later.
All cable ties and other wiring harness fasteners released or
♦
cut open on removing air conditioner unit are to be attached
again in same position on installation.
– Preparatory work to remove front A/C unit has been per‐
formed. Refer to
⇒ "17.1.1 Preparatory Work for Front A/C Unit Removal", page
297 .
Heating, Ventilation and Air Conditioning - Edition 04.2013
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.
Audi Q7 2007 ➤
17. Front A/C Unit, Removing and Installing
299