Audi Q7 2007 Repair Manual page 255

WARNING
♦ The bolts of the connec‐
tion point may only be
loosened when the refrig‐
erant circuit has been
discharged.
❑ For loosening connection points of refrigerant lines, refer to
⇒ "15.8 Connection Points of Refrigerant Lines, Loosening and Assembling ", page 262
❑ For the routing of refrigerant lines to evaporator in rear A/C unit, refer to
⇒ "11.1 Incorporation of Rear A/C Unit into Vehicle Refrigerant- and Coolant Circuit", page 203
21 - Connection in Refrigerant Line to Evaporator in Rear A/C Unit
❑ Only present in vehicles with a rear A/C unit (optional equipment)
WARNING
♦ Bolts of the connection
points must only be loos‐
ened when refrigerant
circuit has been dis‐
charged.
❑ Loosening connection points of refrigerant lines. Refer to
⇒ "15.8 Connection Points of Refrigerant Lines, Loosening and Assembling ", page 262
❑ Routing of refrigerant lines to evaporator in rear A/C unit. Refer to
⇒ "11.1 Incorporation of Rear A/C Unit into Vehicle Refrigerant- and Coolant Circuit", page 203
22 - Expansion Valve at Evaporator in Rear A/C Unit
❑ For evaporator in rear A/C unit (installed under left side luggage compartment lining)
❑ Only present in vehicles with a rear A/C unit (optional equipment)
❑ Removing and Installing. Refer to
⇒ "15.12 Rear Expansion Valve, Removing and Installing ", page 275
❑ To ensure the correct allocation, refer to the Parts Catalog.
❑ Check the functionality. Refer to
Note
After the A/C compressor is switch‐
ed off in this vehicle, it may take a
relatively long time for the pressure
on the high pressure side to de‐
crease (the expansion valve(s) is/
are cold, the pressure on the low
pressure side increases quickly af‐
ter deactivation, the expansion
valve(s) closes/close and the refrig‐
erant can only flow slowly to the low
pressure side).
23 - Evaporator in Rear A/C Unit
❑ Only present in vehicles with a rear A/C unit (optional equipment)
❑ For removing and installing with rear A/C unit installed, refer to
⇒ "19.1 Rear Evaporator, Removing and Installing, A/C Unit Installed", page 321
24 - CONNECTION OF Refrigerant Line to Evaporator in Rear A/C Unit
❑ Only present in vehicles with a rear A/C unit (optional equipment)
❑ Low pressure side
Heating, Ventilation and Air Conditioning - Edition 04.2013
⇒ "13 A/C Unit, Checking Cooling Output", page 215
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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 ➤
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15. Refrigerant Circuit, Servicing
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249