Audi Air conditioning 2003 A8 Workshop Manual page 166

Audi A8 2003 ➤
Air conditioning - Edition 09.2010
– After installing the compressor and before screwing in the
drive shaft, crank the compressor 10 times by hand in direction
of arrow -C- by way of the compressor drive unit -B- (to prevent
compressor damage on initial activation).
Note
Any refrigerant oil which may have collected in the compression
chamber on removing the compressor or after pouring in fresh
refrigerant oil (e.g. after purging the refrigerant circuit) is forced
out of the compression chamber by the cranking action.
– Tighten the drive shaft. Use an open-ended wrench to the hold
the compressor drive shaft -A- in position and turn the com‐
pressor drive unit -B- in the direction of arrow -D- (tightening
torque 60 Nm).
Note
The drive shaft -A- is not to be turned.
♦
After fitting the drive shaft -A-, check the installation position
♦
of the socket -E-.
The socket -E- is secured in position at the power steering
♦
pump flange with a clamp to stop it slipping ⇒ Electronic parts
catalogue .
– Fit the engine support ⇒ Engine, mechanics; Rep. gr. 10 .
– Install the thermostat housing ⇒ Engine, mechanics; Rep. gr.
19 .
– Fit the engine mount ⇒ Engine, mechanics; Rep. gr. 10 .
– Fit the anti-roll bar ⇒ Running gear; Rep. gr. 40 .
– Fit the left air cleaner housing ⇒ Engine, mechanics; Rep. gr.
24 .
– Pour hydraulic fluid into the power steering reservoir ⇒ Run‐
ning gear; Rep. gr. 48 .
– Top up the coolant ⇒ Engine, mechanics; Rep. gr. 19 .
– Re-install the other components removed.
– Evacuate and fill the refrigerant circuit ⇒ Air conditioner with
refrigerant R134a
– Interrogate the fault memory of the front operating and display
unit, Climatronic control unit -J255- and erase any faults dis‐
played ⇒ "Guided fault-finding" function of vehicle diagnostic,
testing and information system VAS 5051.
– Start up the air conditioner after charging the refrigerant circuit
⇒ page 177 .
Note
Also heed the notes on start-up of the air conditioner after charg‐
ing ⇒ Air conditioner with refrigerant R134a .
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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.
160
Rep. gr.87 - Air conditioning system