Before my dealer tried to code a new cluster, my speedo would read a good 3-4mph higher than whats on the OBC. After multiple attempts (failed) to reprogram a new cluster, I've noticed now that my speedo displays .5 to 1mph higher than whats indicated on the OBC.

Anyone else experience this? Does your OBC read 3-4mph lower than what your speedo indicates or .5-1mph like mine currrently is?

Yes...it is 5 mph higher (at 60mph; or about 8 - 10%) on the speedo than the OBC and the GPS.

So how did you do it...there are a bunch of us that would like an accurate speedos.

Thanks

Not sure, I think the dealer must have triggered something reprogramming it each time incorrectly. I still haven't gotten a new cluster in as of yet as they can't program the VIN # until the regional rep arrives. I hope the OBC and speedo doesn't change from its current reading. Its nice to have a slightly more accurate mph now.

Wasn't that like that for some kind of Gas restriction per mile an hour on 5 series or did I make that up?