Hi all,

Just got a Mk3 97 GL Automatic (1595cc petrol) and drives really well, but have now noticed a whining / almost high-pitched rattling noice coming from the car whenever i put throttle / load on. Doesnt seem to happen in neutral when revving, seems to get worse downhills (i think but will test again), but if i come off the gas and let it coast along the noise goes, only to return when going back on the throttle.

My first guess is transmission / drive related and after trying to scour forums seems to have a few common things to look for eg bearings.

Also considered exhaust / centrebox as it is a bit 'bassy' (think i remember seeing on the receipts that it was fitted with a 2.0 vw exhaust) and its also possible that the noise under load could be something reverberating in exhaust system.

I am going to be doing some more driving tonight to try and pinpoint a bit better, but would really appreciate any tips as to what to test, what to listen for etc?

We have a 3 month mechanical / electrical warranty from the seller and if it is something to do with transmission i'd like to get it investigated + sorted sooner rather than later, but want to be reasonably sure before I start down that road.

Any help or advice would be greatly appreciated!!!