Tyre size question

[BernardH]

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,

 

[Neil Dickinsin]

M+S are winter tyres, I would fit the 215/55/16 the 55 means the tyre wall height in % of width. So running 205 tyres will give you a slightly smaller overall diameter so will show less mpg.

[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 ?)

[Neil Dickinsin]

The should be  J code and some other digits stamp on the inside if the rim.