Air Con failed

[Chris Wilson <chris@maximum-bhp.u-net.com>]

Hello all.I have just subscribed to the Quattro list,having recently bought 
my wife a 1988 UK spec 200 Turbo, 2 WD automatic.

One immediate problem is a non functioning air con system.The compressor 
clutch is not engaging.Is this linked to a pressure switch,so,if the gas 
charge is low or non existent,the compressor fails to run? According to the 
owners manual,if there is a gas discharge,a warning should show,but I am 
seeing nothing like that.

Is there a sequence of tests to help isolate the trouble? I have access to 
recharging equipment,and a "sniffer",but I can't get as far as that 
stage,yet... ;-)

Thanks for any pointers.


-- 
    Best Regards,
                 Chris Wilson
http://www.maximun-bhp.u-net.net
mailto:chris@maximum-bhp.u-net.com