Quote:
Originally Posted by flzrider
The sport button definitely works differently on the various M models. For example, the 1M does not have Valvetronic, so it couldn't possibly work the same as the in the F10 M5. From everything I've read online and off, the 1M's 'M' button is simply a throttle remap. As others have pointed out, the only place you feel the difference is at partial throttle.
I've never heard of this until now. As much as I would love to have a button to close the waste-gates shut, I don't think that's the case. How can we confirm this? I'm thinking if this is true, the common waste-gate rattle would be eliminated when M mode is enabled, correct? Or maybe a clicking close sound coming from the turbochargers when the button is pressed?
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Please read the link in the OP from BMW. They talk about how it works and how it apples to both the 1M and the M5...
Guys, why can't you read this stuff before trying to disprove how it works??