[buze]

Perhaps you've heard that vauxhall and I think Volvo are sneakily downgrading the car performance if you get the car into service, to try to dodge the bullet of the 'defeat device'...

Is anyone aware if BMW are doing something sneaky on 2.0L engines? My car is due for a service, and the last thing I want is a downgrade in performance...

[Rodion]

Originally Posted by buze

Perhaps you've heard that vauxhall and I think Volvo are sneakily downgrading the car performance if you get the car into service, to try to dodge the bullet of the 'defeat device'...

Is anyone aware if BMW are doing something sneaky on 2.0L engines? My car is due for a service, and the last thing I want is a downgrade in performance...

Can you give a source for that Volvo thing?

[Tjalle]

It is highly unlikely that any car manufacturer would take the risk to tamper with cars on the road - rumours spread fast.

This is particularily so with GM (Vauxhall), since they just had the infamous steering lock case. GM is voluntarily exchanging airbags on some SAAB (and Saturn) models although no accidents with faulty airbags on SAABs/Saturns - but Takata airbags.

BMW, Volvo nor Vauxhall has been shown to have defeat devices - just results out limit for tests done in a certain way - which is NOT cheating.

[MichiganMike]

With the N54 engine there were several software updates performed by BMW. Some owners claimed reduced throttle response or performance after some of the software updates. Other owners did not observe a difference in performance after updates.

There was speculation by some owners that at least one software update was designed in part to prolong the life of the HPFP and/or minimize turbo waste gate problems.

http://www.1addicts.com/forums/showthread.php?t=548365