speedometer adjustments

[CHRISTOS]

hello,

i changed my 185/55 R15 to 195/50 R15. 100euro cheaper. can i adjust the speedometer as it cheats even more now. 130 on meter, actual 120km

 

[Stormchaser]

I don't think that's possible.

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[malcster]

When I worked at vauxhall if we fitted irmscher upgraded alloys we had to reprogram the body control module to compensate for the difference in the possible rolling diameter

A vehicles speedo is usually over generous to compensate for tyre wear

Edited 15 January, 2014 by malcster

[CFB]

I don't think it's possible, even with VCDS but look on the bright side.

You're less likely to be done for speeding