Removing And Installing Air Conditioner High-Pressure Sender G65; Checking Pressure Signal From High-Pressure Sender G65 - Audi Air conditioning 2003 A8 Workshop Manual

Audi A8 2003 ➤
Air conditioning - Edition 09.2010
❑ Different versions (with primary sealing valve or Schrader valve) depending on the refrigerant line; dis‐
tinguishing features ⇒ Air conditioner with refrigerant R134a
❑ Use an adapter from the adapter set for service connections -T10364- for example for removing and
installing the service connection or valve insert with the refrigerant circuit drained.
WARNING
The refrigerant circuit
must be drained before
removing the service
connections (the con‐
nection has no valve).
15 - Cap
❑ With seal
❑ Always to be screwed on
16 - Reservoir
3.2 Removing and installing air conditioner
high-pressure sender -G65-
– Remove the radiator grille ⇒ General body repairs, exterior;
Rep. gr. 50 .
– Unplug the connector -A-.
– Remove the high-pressure sender -G65- -B- (tightening tor‐
que: 5 Nm).
– Replace the O-ring -C- (10.8 mm; 1.8 mm)
Note
The cooling output cannot be checked with the high-pressure
♦
sender -G65- removed. The front operating and display unit,
Climatronic control unit -J255- does not switch on the com‐
pressor.
There are different versions of the high-pressure sender -G65-
♦
(different signals). Attention is therefore to be paid to correct
assignment ⇒ Electronic parts catalogue .
The refrigerant circuit is to be left closed, connection with
♦
valve.
Checking operation of high-pressure sender -G65- and signal
♦
supplied ⇒ page 10
Moisten the O-ring with a small quantity of refrigerant oil before
♦
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
installing ⇒ page 13
with respect to the correctness of information in this document. Copyright by AUDI AG.
3.3 Checking pressure signal from high-
pressure sender -G65-
– Remove the radiator grille ⇒ General body repairs, exterior;
Rep. gr. 50 .
10
Rep. gr.87 - Air conditioning system
.
.
⇒ page 13 .