Strange sound on s40

[iantype-r]

.........

[jimka]

does it sound like a chattering noise - similar to a flutter... or like this...



in which case you either have a pipe come loose or a large leak somewhere.....

[readview]

Hi,i'd be pretty sure that what you have is coincidental to the mbc,it sounds like a common S/V40 problem which is the recirculation motor behind the dash on the n/s.If you press the recirc button on the dash (the one with the three lines forming a circle) it will most likely stop making the noise.If so,it is certainly the recirc motor at fault.This is nothing to do with what you have done and is a bit awkward to get at.The official method is to pull the dash away at that side,the unofficial way is to cut a small hole at the back of the glovebox and get at it through the opening you create.The item itself is about 4" by 2" with a short rod attached and will not cost too much for a replacement.We can supply a used one if req.

[chisai]

Like wot readview says. Also if you can take the small cog off and turn it 180 degrees and replace and it should be good as new.....unless a previous owner has already did this!!!

[iantype-r]

Many thanks for the replys, at the moment it seems to have stopped, ill keep a listen out and let you know what happens, thanks again,

cheers ian