Sport Button - What does it *actually* do?

[Andy]

I find it more usable since I fitted a straight through exhaust system. There seems a real difference in throttle response now. It's too sharp for town driving but on the twisties and when i want to get on a bit it's very good! I guess that's all the button was ever intended to do!

Oooh I wanna hear ur exhaust !

I press it because it makes me feel better - I know I'm in the mood to drive quicker than usual.

[Mafoo]

From my experience, it offers little more than a stiffening of the steering (that I actually prefer) and an even more jerky pull off (combined with the CDV).

I think there could be an arguement for the button to be renamed the "placebosport" button (or M//placebosport" button) ??

[sammyz]

Should have been the 'M' button on the 'M' cars Even if it doesn't do much it would have been cool to press it

[HU51A_FU]

Its good for heel and toe'in up to a round about

[MichaelK]

I find it does absolutely nothing on the z4m to fjs point where I wonder if it actually works on my car.
My e46 m3 was completely different, you press the button and it really changed the throttle response to the point where it was difficult to pull away in 1st without kangarooing

[Muckinonthesofa]

I prefer the standard throttle map.

[Mr Tidy]

I tried using the Sport button a few times in my last 3.0Si and honestly couldn't feel any difference.

So I haven't bothered in my M!

Even if it did sharpen up throttle response in the initial stages of movement I think I'd really rather have a progressive response over all of the pedal range.

[Vanne]

IT seems to do something to the clutch as well - a shorter engagement point. I was actually playing with it tonight.

Does absolutely nothing to the clutch.

It's handy if your a led foot and you wanna save some gas. Lolol.

[mmm-five]

On an M it does nothing but change the throttle pedal mapping - which is all it's supposed to do.
Mine stays off until the car's warmed up, then it's in sport for the rest of the drive.
If you're noticing stiffer suspension or steering, then you need to stop sniffing the super unleaded you're putting in

I don't know about non-Ms with electric steering - but I have 4 modes on my f31 which seem to change the auto-box & throttle speed along with steering weight.

[ga41]

On mine, with RPI rear exhausts, I get a lot more pops and crackles with sport mode on than off due to the different throttle mapping

[PDJ]

As has been said before on the M it basically adds 20% to the pedal position so your foot is at 50% the engine is told to be at 70% when you get to 81% the engine is already at 100% and the travel foes nothing, so a bit of a gimmick and you end up having to learn 2 throttle responses

[Brown]

It makes a big difference on my Z4MC, mostly to the throttle response and in a way that can't be achieved just by putting your foot down further.

It's a good button Brent.

I find it makes for greater precision in throttle, each millimetre you push the the accelerator you feel the impact, makes my car respond like a Scalextric. I find it is too much to use it on the road unless you want your passenger to be sick. I've used it on windy roads before and it's not comfortable for long periods of time, made me feel a little queasy myself.

Great on a track.

[Brown]

I find it does absolutely nothing on the z4m to fjs point where I wonder if it actually works on my car.

i guess it doesn't work then, on my Z4MC is makes a huge difference. Try someone elses's if you get the chance. I like the button.

[MichaelK]

I find it does absolutely nothing on the z4m to fjs point where I wonder if it actually works on my car.

i guess it doesn't work then, on my Z4MC is makes a huge difference. Try someone elses's if you get the chance. I like the button.

Yeah I'll have to. As I said in earlier post the button being on made a big amount of difference on my e46 m3.
I can't see why or how it would break to be honest.

[buzyg]

I gather it does very little in the ///M. As such I can say honestly, that in ten years I have never had any unrge to press it. I understand the ECU maps the throttle position based on how you use the loud pedal anyway. Not sure how though.

Here you go, some valid comment on Bimmerfest, about throttle adaption on all Z4 models including S54 engine.
https://www.bimmerfest.com/threads/z4m- ... on.286575/
So it does indeed adjust to your driving style. With or without the Sport Button. The sport button simply gives you a different throttle position map to learn. As I'm happy I know what to expect, when I press the throttle pedal, I leave the button alone.