sg530

I use highest octane available.
Have sport package which means run flats summer rated and wide. Tires and wheels like dozens in this forum.
Can't light or even get a chirp from wheels even in m1, steptronic doesn't learn on that. DSC off.
It's eaier to ask if it's just me in this forum than do dyno. Dyno doesn't allow for car suspension or motion and other engine controls (limits).

Hormazd

I couldn't agree with you more.

They do. You have to push and hold the button down untill you see the I-Drive message and the symbol on your dash.

sg530

It's not a 16 year old that every stop sign is an excuse to burn rubber!
If you cant make the tire break free, then you have no measure of your limitations of the car. Every skilled driver should know the limits of the vehicle. As for lighting up the tires, once is enough, ifyou can do it.

heli_ca

People, I'm just trying to explore the limits and capabilities of the 545i. I don't plan to do it frequently, most high end sports enthusiats that I know would want to try it at least once!

sg530

You know heli ca, I bet most of the other hundreds of members of this forum haven't lit them up unless they have smg!
It may be the car is built to not make it easy to break the tires free whether 530 or 545 even with dsc off.

EBMCS03

You're right its not easy to light them up with a auto. Cant speak for the 545 but with the E39 540 I was unsuccessful in spinning or chirping the wheels off the line. Something they do for some reason it lacks power starting off the line with the auto trannie.

With SMG? Never tried. too scared to LOL

CRRobert

You're right its not easy to light them up with a auto. Cant speak for the 545 but with the E39 540 I was unsuccessful in spinning or chirping the wheels off the line. Something they do for some reason it lacks power starting off the line with the auto trannie.

With SMG? Never tried. too scared to LOL
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Awh come on. I just tried the "Acceleration Assist" and lit them up. Probably a little too humid and the road was probably damp, but got them spinning, a little too much I think. I will try again during the daytime and more traction, and now know what to expect. Don't plan to do it too often.

EBMCS03

HAHAHA didnt we have this talk already???

So how did AA work? did it shift automatically for you when it hit the rev limiter?

realtyman

You're right its not easy to light them up with a auto. Cant speak for the 545 but with the E39 540 I was unsuccessful in spinning or chirping the wheels off the line. Something they do for some reason it lacks power starting off the line with the auto trannie.

With SMG? Never tried. too scared to LOL
[/quote]



Awh come on. I just tried the "Acceleration Assist" and lit them up. Probably a little too humid and the road was probably damp, but got them spinning, a little too much I think. I will try again during the daytime and more traction, and now know what to expect. Don't plan to do it too often.
[/quote]

Hey CRRobert,

Did you notice how hard the car shifts 1 to 2 ands 3 to 4, etc. after the darn wheel(s) stop spinning? Once the tires wear down around 1/2 way it's pretty much a One-Wheel-Show (or so I've heard ) but man does it shift hard. Too bad there wasn't a way to get those shifts without the "wheel-spin" option!

Hormazd

Turned off DSC twice in 9500 miles and done it. Its very easy to do and twice was enough. Once with OEM CDV and once with modified CDV. I really think its a lot of un-neccessary wear and tear on the drive train.