Hi guys, i've got a a3 quattro and ive noticed something strange with my car. When starting up the car cold it'l rev at 1,200 rpm for a few minutes and then settle slowly down to about 800rpm. Now not sure if this is normal but it's always been like that.
However now ive noticed that just before it starts to drop there a very distinctive hiss. Is this normal??
However now ive noticed that just before it starts to drop there a very distinctive hiss. Is this normal??