XC60 D5 Euro 4 noise when changing gear
 

Hi,

Our 2010 XC60 Auto has started making a noise when changing gear. Not sure how to describe its not metallic, more blowing. The Volvo dealer has replaced the gearbox oil and a rubber turbo pipe, but noise is still there, that alone has cost nearly £500, need to avoid swapping parts out. Looking through the forums etc I keep seeing BOV related issues. Its only done 75k.
Does anyone know of a good specialist in the Berkshire area.

Thanks.