W124 pressure switch change -

[ShivaYash]

Hello,

Would changing the air conditioning pressure switch, part number A1248208310 mean opening the 'closed system' and loosing gas?

I ask as I'd like to change this switch and suspect its an easy think to do, and just want to check with the experts.

With best,

 

[television]

If it sits anywhere withing the tubes for the air con then yes it would need to be removed and put back when all done.

 

[hotrodder]

Yep, testing and replacing pressure switch for compressor... http://www.w124performance.com/service/w124CD1/Program/Climate/83-542.pdf
and for aux fans http://www.w124performance.com/service/w124CD1/Program/Climate/83-544.pdf