I have just bought an 03 Polo 1.2. When I am at traffic lights etc and the engine is just ticking over there seems to be a lot of vibration through my seat! Is this normal? I took it back to the garage for another issue and I asked them about it but they didnt mention it when I went to pick it up so I assumed they had done something...obviously not as it is still shaking. I am still under the 30day trial period and am wondering how serious this issue is....do I just get used to it?