MOT connection
My E-280 just came out from a garage for body work. I don't know what they did to the engine but when the a/c cuts off the idle and the whole car is shaking like crazy.
I notice an ZZZZZ sound at a part written MOT. One end of the hose is left without any connection. When I plug it with my finger the zzz sound's gone and the idle run smoothly.
Where is the open hose supposed to connecting to? I think someone forgot to connect it back.
Many Thanks


