Bob, you currently have 25.3" diameter tires 8.5" wide.
Switching to a 215-50-17 will give you 25.46" diameter and 8.5" width. No need for speedo correction.
Scott D
I have a 2000 E320 and want to buy new wheels. The car has original
> 16" wheels and 215 55-16 tires. Tirerack.com lists 17" wheels as OK
> for this car. Has anyone used 17" wheels and is it possible for the
> owner to program the car for the speedo etc...
>
> Bob
>
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