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You get less assistance from the dynamic stability control. Which adjusts over or under steer. It's helpful to have it off when drifting at corner on a track.
for daily driving it might be best to stay on sport.

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You can configure sport mode so that only the drive train is affected, or chassis or both. Sport+ defaults all settings to most aggressive as well as partially disabling the traction control. You can turn the nanny off completely by holding down the traction control button for 5 seconds. But do so at your own risk, especially with a 550i.
 

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I enjoy the stiffer suspension and tighter steering with sport engaged. What does sport+ do?
Dealer told me the difference is Sport+ engages rear wheel drive only. Not sure if that is true but, seems like that is a good reason to disengage DSC. But, what do I know?:dunno:
 

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Dealer told me the difference is Sport+ engages rear wheel drive only. Not sure if that is true but, seems like that is a good reason to disengage DSC. But, what do I know?:dunno:
Your dealer, like most dealers doesn't know as much as you would think. The X-Drive vehicles in the 5 series can only send a maximum of 80% to the rear wheels.
 

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Your dealer, like most dealers doesn't know as much as you would think. The X-Drive vehicles in the 5 series can only send a maximum of 80% to the rear wheels.
Are you positive? I thought I read in the BMW literature that it can send 100% to any wheel.
 

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You can configure sport mode so that only the drive train is affected, or chassis or both. Sport+ defaults all settings to most aggressive as well as partially disabling the traction control. You can turn the nanny off completely by holding down the traction control button for 5 seconds. But do so at your own risk, especially with a 550i.
I agree. Unless you are very experienced handling a car at speed with controlled sliding at 99% of the car's capability being used, keep the car out of Sport +. A few decades ago I did a lot of Autocross with an old Mazda RX7 and a highly modified Formula Vee. So, I know a bit - but not as much as some - about cars at their limits. I still keep my F10 out of Sport +. The safety of the "nanny" controls lets me keep my pants clean!
 

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Are you positive? I thought I read in the BMW literature that it can send 100% to any wheel.
The old Xdrive used to send 40/60 split all the time which would cause understeer during aggressive driving. The F10 default is 40/60 as well, but when you drive it aggressively it will send 20/80 front to back as well as the torque-vectoring system that brakes the inside rear wheel while feeding power to the unbraked outside wheel. I believe XDrive can send 100% power to either axle at start up in extreme slippery situations, but I don't think this full power distribution is maintained while driving at speed. I should have been more clear about that...
 

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To be clear,

There is DSC Dynamic Stability Control
There is DTC Dynamic Traction Control

When in Sport +, you disable DTC, and there will be an indicator/text on the dash stating the "DSC is still Active".

If you use the DSC button, you can disable DSC, DTC, or both depending on how long you hold down the button.

Am I correct?
 

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The old Xdrive used to send 40/60 split all the time which would cause understeer during aggressive driving. The F10 default is 40/60 as well, but when you drive it aggressively it will send 20/80 front to back as well as the torque-vectoring system that brakes the inside rear wheel while feeding power to the unbraked outside wheel. I believe XDrive can send 100% power to either axle at start up in extreme slippery situations, but I don't think this full power distribution is maintained while driving at speed. I should have been more clear about that...
Thanks for the clarification.
 

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To be clear,

There is DSC Dynamic Stability Control
There is DTC Dynamic Traction Control

When in Sport +, you disable DTC, and there will be an indicator/text on the dash stating the "DSC is still Active".

If you use the DSC button, you can disable DSC, DTC, or both depending on how long you hold down the button.

Am I correct?
Yes, but IIRC when you hold the DSC long enough to disable, then car also backs out of Sport(+) mode.
 

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I drove a 2011 Z4 3.5, it was raining that day and I decided to put it on sport plus, didn't realize what I'd be losing. Car was all over the place on acceleration, had decent grip though.

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Discussion Starter #13
You can configure sport mode so that only the drive train is affected, or chassis or both. Sport+ defaults all settings to most aggressive as well as partially disabling the traction control. You can turn the nanny off completely by holding down the traction control button for 5 seconds. But do so at your own risk, especially with a 550i.
Thanks TJ -- I'll keep in Sport or Normal since Sport+ deactivates some traction control. Funny that the + warning says DTC active rather than some traction control deactivated.
 

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If you can, go drive a viper, it's pretty much an engine, 2 chairs, and a chassis... not much else. It's an untamed car, and very dangerous. It's pretty much what it's like with all the settings off.
 
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