ml320 issues
 

only had theml for a couple of months and now getting a surge in gear but only when a/c is on, going to check a.c first then fuel filter,

Surge can be caused by erratic air mass sensor OR throttle actuator...any codes?

no codes and and now it won't do it and a/c working, I hate these come and issues

did it again last night still no codes, now when it was cold no ac it was surging a 1-200 rpms?

found the problem, it is the a/c kicking in and out due to high pressure(bad expansion valve?) ording new one and drier as long as I am into it

What year ML? Early ML's had issues with fuse 44 for the aux fans.

2001, yes aux fans are working, had the shop check it and it was low, drove it for about 15 mins. worked great till I got home started the same thing so took it back it was still full but high pressure, he drained and it and I have exp. valve and drier coning

Hey MBDoc
I have a 2002 ML320 and the Aux fans stay on after car is shut off. any thoughts on this.