BernardH

Thanks Neil, that makes sense! I guess M+S is for Mud&Slush ? Looks like I'm going to have to replace all 5 tyres (inc. spare), I guess the dealer has pulled a fast one, and just put on 5 of the cheapest part-worn tyres that will fit ... :-( Does anyone know if there should be a size/part number anywhere on the alloy wheels just to check they're the correct ones for the car (and not from an A3 or perhaps some other VAG car ?)

I recently bought an A4 B7 Avant TFSi Quattro, and it has a mixture of different tyre brands on it, so I'm planning to replace them all. The current tyres are 205/55 R16 (including the spare), but various on-line tyre places seem to suggest from the Reg. No. it should have 215/55 R16 fitted. (both sizes are listed on the tyre pressure plate (attached)) There doesn't seem to be a size/part number on the rims (is there somewhere to find this ?) Should I stick with the current size, or is the 10mm width upgrade possible/worthwhile ? Thanks,