hello everyone , im a little bit bothered about the whining noise coming from under my bonnet , i have asked friends and they give me a different view everytime . its a mk 1 172 its done 84000 miles ,could it be anything serious because people keep tellin me not to worry to much .ive already sprayed wd40 all over but hasnt made any difference. i know that different parts make diff noises so has anyone got any ideas or ways in which i could check myself . thank you for reading and yr help would be very greatful .. dylan