Ac issue

[ard]

Originally Posted by tumbler

your ac compressor is probably shot. mine went out last month, scan tool shows a passenger jbe compressor error. for what its worth, i would get a new idler pulley and belt if your replacing, cheap and easy prevention maintenance.

Ya think?

Based on what he posted, that is your diagnosis?!? I mean great you just joined, kudos for your 4 posts.... gotta start somewhere.

Ive read a few hundred thousand post on the E70. AC compressor failures are relatively rare.

“I’ll just replace them all”?!?

Diagnose the problem first....

[Destro408]

Originally Posted by Mackskibum

This post tells us all we need to know. You don’t understand how the system works. Does your AC have a clutch or is it variable displacement? Using a BMW capable code reader are there any codes related to climate control? Why do you think putting 12v to a switch that is designed to send a signal by completing a path to ground is a good idea?

It’s not a ‘74 Matador.

To bypass the switch? And yes it has a clutch on it. Correct I don’t know the system on a new car to me, I’ve read the link that was posted and I don’t have a scan tool capable of telling me faults that aren’t throwing a cel.

[ard]

welp. Yo dont want to discover that something was a PWM signal and not a 12VDC ..... PWM is pulse width modulated.


Consider a decent scanner, or load ISTA on a laptop. $150 for a scanner, might pay for itself right quick.

[Destro408]

Yeah I’m looking into scanners now, I guess my other cars weren’t quite this technical before.