Air con FAULTY

[Paul]

Can anyone help with the following codes?
A/C is fully gassed.

 

[Trickythemerc]

Sounds like a power supply issue with the A/C compressor clutch. Poor signal or faulty SAM ? Maybe a failed clutch, my bet would be the SAM.

 

[Paul]

What's the SAM?

 

[AMGeed]

What's the SAM?

From Google.

SAM stands for Signal Acquisition Module, and it's a controller with multiple functions. Part of the vehicle Controller Area Network (CAN), a SAM acts much as a router does in a communications network.

 

[Jobsworth]

Compressor clutch is easy to test. That would be my first port of call

 

[alexanderfoti]

Also suspect clutch really is suction valve as I have not seen a clutch on a w212

 

[Jobsworth]

Also suspect clutch really is suction valve as I have not seen a clutch on a w212

No, there are some with magnetic clutch

 

[alexanderfoti]

Apprently Code B09 is magnetic clutch.

 

[Jobsworth]

It’s a nerd-fest here today