pins to jumper for W140 A/C charge
I have a 1992 W140 300SD. My A/C compressor is not turning. IN the past (1987 300SDL W126) my A/C compressor was engaged 100% of the time, except in economy mode.
I believe that my system is low, I will verify with my gauges but If I need to what pins do I jumper to bypass the low pressure switch?
Is this onthe receiver drier as on the older MBZ? I did find a 3 connector plug. Low pressure and high pressure?
Also is there another procedure to charge/top up a A/C system?
thanks in advance