Nathan Herr

I recently put an aftermarket AC Compressor in my 2009 ml350 w164 and it's not allowing me to add r134a. My icarsoft scanner is giving me this fault code. "9007 Component A9 (AC Compressor) has open circuit". Does anybody know what this means? Thank youl

Plutoe

well biff based on what you posted it means that the clutch on the used compressor is faulty---its a do over

E55Greasemonkey

Did you plug it in Biff?

Nathan Herr

Biff?