Touareg alternate wheel/tyre sizes?

[geoffm]

I own a 2013 Australian spec. 180kW Touareg diesel. The standard wheel size for this vehicle is 20-inch, and is fitted with Goodyear 275/45R20 110W tyres.

I was wondering whether the 18-inch wheels which seem to be fitted as standard to the 150kW model would fit my vehicle, as I'm interested in getting a spare set of these to give myself a higher profile tyre size, more suitable for off-road use.

In short, the 2 basic questions I have are:

1) will the 18 inch wheels fit my vehicle?
2) what odometer/speedo recalibration, if any, would be needed to allow for any difference in the rolling circumference of these different wheels?

[Flipper Dog]

Your tyre placard will state what size wheel/tyres can be fitted. From memory 255/55/18 are the standard fit.
Re calibration won't be necessary.
Largest you can actually fit I believe are 265/60/18 or 255/65/18 depending if you want it foot print or side wall heavy.

[geoffm]

Thanks for your reply Flipper Dog - not quite sure what you mean by the tyre 'placard'.
The 'standard' tyre on my Touareg 180 TDI is the size I mentioned (the original factory-fitted Goodyears are still on the vehicle) It has 20-inch rims fitted with 275/45R20 110W tyres.

I've seen the 18-inch rims around on other models (the 150kW model I think has them) - my question was . . . will they physically fit my vehicle . . . same stud pattern, direct replacement of the existing rims??

[Flipper Dog]

will they physically fit my vehicle . . . same stud pattern, direct replacement of the existing rims??

Yes they will

[V10Touareg]

I was wondering whether the 18-inch wheels which seem to be fitted as standard to the 150kW model would fit my vehicle

Your tyre diameter is 756 mm.

If you get the wheels to fit then, you will need 275/55/18 (760 mm, +1.70% difference) or 245/60/18 (751 mm, -1.74% difference).

Those two tyre sizes are most common. You can shop around, like I did to get 285/18 for my BM; but it's a bit of a slog.

Anything else is > +/- 2.34% off spec for rolling diameter and may interfere with your corner sensors.