Can anybody help?
My 57 gti mk5 is making a whistling sound when I let off the throttle here's the things I notice
•the engine has to be up to temp
•it is only there when I take my foot off the throttle
•and it gets high pitched when I turn engine off before releasing an air sound then it goes away
The car is stock no mods as far as I'm aware any light on this problem would be much appreciated thanks