Volkswagen Amarok 2011 Workshop Manual page 22

Amarok 2011 ➤ , Beetle 2012 ➤ , Bora 1999 ➤ , CC 2010 ➤ , CC 2012 ➤ , ...
Air conditioning system with refrigerant R134a - Edition 10.2014
Note
When purging components with compressed air and nitrogen,
♦
always collect the gas mixture exiting the component with suit‐
able exhaust gas extraction equipment (workshop fume ex‐
tractor).
After completing repair work, screw sealing caps (with seals)
♦
onto valve and service connections.
Before operating the air conditioning system. Check the vehicle-
specific charge quantities ⇒ Rep. gr. 87 .
Do not top up a charged refrigerant circuit; discharge refrigerant
present and recharge system.
1.12.2 Before operating the air conditioning
system after recharging with refrigerant
– After installing a new air conditioner compressor or filling with
fresh refrigerant oil (e.g. after blowing out refrigerant circuit),
turn compressor pulley 10 revolutions by hand before starting
engine. This will prevent damage to the air conditioner com‐
pressor.
– On 5-cyl. or 10-cyl. diesel engine, turn air conditioner com‐
pressor at overload protection 10 times by hand. Then install
compressor. This will prevent damage to the air conditioner
compressor.
– Start the engine with the air conditioning system switched off
(the air conditioning system magnetic clutch - N25- and the air
conditioner compressor regulating valve - N280- are not acti‐
vated).
– After the engine has stabilised at its idling speed, switch on
the air conditioner compressor and allow the engine to idle for
at least 10 minutes at maximum cooling power.
16
Rep. gr.00 - Technical data