Originally Posted by gunda
no you can just install the Jb4 and adjust them all using the dash/wheel controls. The laptop is used for updating to the latest firmware and installing the BMS backend flash. If you just ran out of warranty recently and the rattle started, BMW might honor it and replace your turbos.
Didnt he say he had 84,000 km.
You should be all set with warranty.
Its 82,000 miles.