Yes they have a regular clutch. Sent from my iPhone
> On Mar 30, 2021, at 11:52 PM, Karl Wittnebel via Mercedes > <mercedes@okiebenz.com> wrote: > > Ok so I have this 648 in the 123. It has the pwm controlled variable > displacement compressor. I talked to a guy at Denso. He said the later 90s > early 2000's cars had a similar compressor case but instead of pwm control, > the valve somehow senses the pressure in the circuit and adjusts the > valve/flow according to the sensed pressure. So there is no pwm control. It > looks like it has an electric clutch also. Anyone ever work on AC from a > 2000-ish slk, e320 or e55? Does it have a regular electric clutch on the > compressor? If so, I think I may have found the solution to fixing AC in > this car: buy the older compressor, bolt it on and plumb it to the 123 > coolant loop. Then hook it to the thermostatic compressor clutch control > signal from the 123. Done. > _______________________________________ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
