BMW has started to change the performance, sound, features and characteristics without permission of the vehicle owner, this is all done after the sale. Has your M car received a recent software update (ex: fuel vent software update) and you've noticed any of the following

• Muted exhaust note
• Reduction or elimination of overrun (burbles) 
• Loss of low end torque
• Harsh downshifts
• Reduced shift performance
• iDrive issues or elimination of features
• Electronic suspension changes

These software updates change the entire way your vehicle will drive and preform, they do not provide release notes and they are unwilling to change the vehicle back to the way it was when you purchased it. This is a clear bait and switch, we will get BMW to return our cars to the way they were when we purchased them or they will pay in a class action lawsuit. We need your help, BMW cant keep doing this to its M car community. 

We have 2 internal employees of BMW who have confirmed and provided details that in fact these updates change nearly all of the vehicles driving characteristics.

I also encourage many of you to call or email BMW about this issue (direct contact details below). The squeaky wheel get the grease, 500+ squeaky wheels will get their attention a lot faster.

BMW Group                                  

Elizabeth Mauthe

Executive Customer Care

Customer Relations and Services

BMW of North America, LLC         

P.O. Box 1227 - Westwood, NJ 07675-1227

Tel:   1-800-831-1117 ext. 5816

Fax:  201-930-8484

Mail:  Elizabeth.Mauthe@bmwna.com