W211 airmatic compressor not functioning.

[Colin Bleach]

Hi all I am a newbie here and have been unsuccessful searching previous threads which I am sure has been discussed before so I apologise if its repeated. The problem I have is the compressor is not working, I have removed the compressor and bench tested it and is working as it should. The other problem I have is the laminated front SAM sheet is missing from this car, so I need to locate the relay that triggers the compressor if anyone can point me in the right direction please?

 

[Oldspanners]

Hello and welcome.
No expert on this but they will undoubtedly will be along soon. Perhaps this may help until then.
https://www.google.com/search?q=mer...UKHc-_D68Q9QEwAHoECAkQJA#imgrc=LoyEWTNk4sZ6dM:

 

[AMGeed]

The airmatic relay is in the underbonnet fuse box on the drivers side close to the bulkhead.
In the diagram below, the relay is the unmarked one at the bottom right of the diagram

 

[Colin Bleach]

Thanks for your help I will check that out.

 

[Colin Bleach]

Ok with some more investigation from the links you supplied I realise I am confusing airmatic with self levelling suspension! my car is an estate and it is only on the rear. So I am back to where the relay / fuse for the SLS may located please.