adjusting speedo to tire size
I would like to fit bigger wheels on my 270
can i adjust the speedo so that it still correct?
thx
G
Here I think might lie the solution to your problem...
http://pointedthree.com/disc/forums/showthread.php?tid=9622&start=1
You need to get MB to do it with a star diagnosis machine.
thx, it doesn't say HOW it's done?
If you go on to the 3rd page of the post, I'll re-post the photos here and text (credit to "fernweh" on P3) as only members can view it there. You basically need someone with the STAR diagnostics machine who knows what he's doing, either a very friendly dealer or independent garage...
"just a small correction after I looked in the transmission control module for ever.....
The coding you are referring to is done in the transfer case control module and I'm still searching for the tire size change in the instrument cluster thing....
I found it
Tire size under 'special equipment' in the variant coding of the Instrument Control Unit.
Let's see if that corrects the speedo problem of being 10% slow......"
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thx, it doesn't say HOW it's done?