Audi Q7 2007 Repair Manual page 23

❑ Depending on engine version, it may be necessary to remove different components in order to be able
to connect to service coupling of the service station.
12 - Cap
❑ With seal
❑ Always screw on
13 - Connection with Valve
❑ Different installation locations depending on version and engine of the vehicle.
14 - High Pressure Sensor - G65-
❑ Removing and Installing. Refer to
⇒ "3.3 High Pressure Sensor G65 , Removing and Installing", page 18
❑ Signal, checking. Refer to
15 - Expansion Valve
❑ For evaporator in front heating and A/C unit (heating and A/C unit under instrument panel)
16 - Evaporator
❑ Evaporator in the front A/C unit (under the instrument panel)
❑ For removing and installing the front A/C unit evaporator, refer to
⇒ "17.3 Front A/C Unit Evaporator, Removing and Installing", page 306
17 - Service Connection
WARNING
Service connections
(connection is not equip‐
ped with a valve) or the
valves installed in them
must only be removed
when refrigerant circuit
has been discharged.
❑ Low pressure side
❑ There are different versions (with primary sealing valve or with Schrader valve) depending on the refrig‐
erant line. For distinguishing characteristics, refer to ⇒ Refrigerant R134a Servicing; Rep. Gr. 87 ; A/C
System General Information (Refrigerant R134a, Servicing; A/C System, General Information).
❑ For measuring and discharging, refer to ⇒ Refrigerant R134a Servicing; Rep. Gr. 87 ; A/C System
General Information (Refrigerant R134a, Servicing; Refrigerant Circuit, Using Service Station).
❑ Depending on engine version, it may be necessary to remove components in order to be able to connect
to service coupling of the service station.
18 - Cap
❑ With seal
❑ Always screw on
19 - Pre-Volumes
❑ Is a component of refrigerant line to compressor.
❑ Pressure fluctuations are damped in the damping chamber
❑ Not installed in all vehicles (depending on the engine and on the version of the vehicle). Refer to the
Parts Catalog.
20 - Connection of Refrigerant Line to Evaporator in Rear A/C Unit
❑ Only present on vehicles with a rear heating and A/C unit (optional equipment, installed under trim at left
in luggage compartment)
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
❑ High pressure side
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.
Heating, Ventilation and Air Conditioning - Edition 04.2013
1)
⇒ "3.4 High Pressure Sensor G65 , Checking Pressure Signal", page 19
Audi Q7 2007 ➤
.
.
3. Refrigerant Circuit
.
17