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Old 06-22-2012, 07:37 PM
f01driver f01driver is offline
Officially Welcomed to the 'Fest
Location: Canada
 
Join Date: Jun 2012
Posts: 752
Mein Auto: 11' 750i, 14' Bentley GTC
My friend works at a local BMW dealership and he was upgrading a 335i to Dinan and I asked him about the warranty. He said the Dinan code sits on top of the BMW coding so it doesn't interfere with any stock coding or diagnostics and he claimed it won't void the warranty because the dealership itself has done several Dinan flashes.

I guess it comes down to the dealer, I've heard crazy stories of dealers denying warranty on electronic parts because someone had aftermarket rims.
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