Is there a "Sport" mode button?
 

...On the 4.8is or anything? because i found this for the e60..

My 06 4.4i has sport mode all i do it push my shifter to the side and I have sport mode and shiftronic.

manual 6-speed
6-speed automatic
6-speed sport automatic (LCI)
6-speed SMG
7-speed SMG

That's what it's available on the e60

I wonder if he has the non sport tranny but was still able to activate sport mode with that button..:dunno:..idk if that makes sense

Why would an E53 (based on the E39) have any features found on the E60?

I see the original video was posted on April 1st. Coincidence?

E70 has the actual sport button , it controls suspension settings and shift points


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when you put the e53 in sport mode by using the tranny shifter

it shows an S on the dash = sport

shifting changes and engine response does to

no suspension alteration takes place

Can you describe "changes in engine response"? Only thing that happens, far as I can tell, is shift points. My M3 has Sport button. By pressing it will change throttle response. Shifting to Sport in X5 doesn't seem to have any effect in engine.

Interesting... If possible; would like to know if throttle response can be changed instead of going with aftermarket add on.

E53 doesn't have that hiding sport mode feature like e60.

Engine has better throttle response

YEs YEs i know the tranny has the sport mode that controll the shifts... thats not what i was asking. And yes i know e60 nothing to do with e53, just the principal of the sport button that changes the engine throttle response and stuff.

For example the E39 m5 has a sport button...

Throttle response improves in the sport mode, If you want more than the stock transmission offers plus faster shifts and manual shifting that will only shift when you shift you can add Dinan transmission software. I had the software installed many years ago. It makes a remarkable difference and has been flawless.

So now two posters are saying that the throttle response changes when the Steptronic transmission is in sport shifting mode.

We should be clear that this is throttle pedal response, not engine response.

What is the basis for this claim?

On my Z4, the sport mode button was documented as changing throttle pedal gain (and the weighting of the electric-assist steering), and it was noticeable. Never saw anything like that on my E53.

Perhaps this will help clarify what the manually selectable SPORT mode & STEPTRONIC does (my interpretation is...it changes transmission shift patterns so that the engine's power reserves/response can be "optimized" ).

Our E53s have been using an Adaptive Transmission Control system with a manually selectable SPORT mode (program) that debuted in 1994...and has been updated over the years. Along with the manually selectable SPORT program...there are nine other automatically "adaptive" programs that are selected by driver influence and/or road/environmental conditions when the gear select lever is in D (drive).

The sport mode does change transmission characteristics, like higher rpm till next shift or holding the gears etc. I believe it also changes the steering assist.

And yes when its in sport mode you can tell the pedal/motor responsiveness is better and I feel i have read somewhere the TQ converter also locks up quicker then normal.

With the pedal response thing its not too much, just get an aftermarket clean unit like i have (pedalbox) and it literally changes the whole car and acceleration/rolling pulls are faster.

Since I modified the transmission software so long ago I could be wrong about go pedal. I do know the automatic, S mode, and the M overall maps are all different. Since the ATS map adapts to slow or rapid acceleration it would make sense that means the go pedal map changes because upshifts/downshifts are a separate part of the ATS maps- but maybe not.

Assuming I am wrong there are several devices that will modify the go pedal map. Some are adjustable to make the response both slower for economy and faster for 'performance' --to the point that the map can be linear--like the good ol' days. The ones I checked out ran from just over $100 to near $300. I would compare the devices with Dinan transmission software because it offers several other features that the other devices do not.

BC

what does dinan trans software exactly change?, and do they have it for the 4.8is too?

I dont see how it can get any much better then how mine is at the moment with shifting wise.

It may not be better as far as go pedal response but that is not the only change it makes. The following is a link to what is offered for the 4.8. I don't see transmission software listed. I would check with them if you are interested. I have found their website is not always accurate. If you check what is offered for the 4.6 it details what the software does. Products - Dinan, Leader in BMW Performance Parts and Upgrades

Sporty acceleration is no longer the sole domain of those who like to shift gears; Dinan® Automatic Transmission Software welcomes you to the performance zone. To fully utilize the extra power extracted by Dinan Engine Performance Products, the transmission software raises the shift points to a higher rpm for faster acceleration in both the ”Sport” and ”Economy” modes, allowing you to carry more road speed in each gear.

The software also provides firmer and quicker shifting, further improving acceleration. The transmission software will typically shave .01 seconds off of 0-60 mph times and .03 seconds to 100 mph. The software provides the same benefits in both the automatic and manual shifting modes.

The Dinan® transmission software also provides the driving enthusiast with a revised ”manual” mode that is better suited to performance driving. In the ”manual mode”, the Dinan programming will maintain the selected gear regardless of engine speed, giving the driver true control over gear selection. Regardless of the selected gear when the vehicle is brought to a stop, the transmission will automatically downshift to 3rd gear. Of course the driver can manually downshift as the car is brought to a stop, for a more typical 1st gear start. The program will only automatically force an up or downshift in the manual mode when the ”kick-down switch” is activated by the accelerator pedal beyond the wide-open throttle position. The result is much greater control over gear selection for varying driving conditions and speeds, enabling the driver to maintain the appropriate engine speeds for maximum acceleration.



The bolds look to be the biggest +'s to me. The italicized one not sure if i go along with that,i feel thats from the raised shift points which then id agree can be faster.

I asked what sport mode did a while back and got good responses here:

http://www.xoutpost.com/bmw-sav-foru...port-mode.html

I have also been wondering what goes on in 'sport' mode, apart from the obvious change in shift points and improved throttle response.
I have always had this very distinct 'seat-of -the-pants' feeling, that the engine is actually producing noticeable more power in sport mode. And not just because of the higher rpm, but more power at a given amount of rpm, than you get at the same amount of rpm in 'normal' mode.

Bimmian.com is selling a Sprint Booster Throttle Remapper. And in their description of it, i stumbled over the following:

3) Linearly maps the pedal depression to throttle opening. Press the pedal down 20% and the throttle will open 20%. Press the pedal down 50% and the throttle will open 50%. Without sprint booster, when you depress the pedal 20% the throttle may open 10%, when you press down 40% it may open 25% and when you press down 100% it may open 75%. This is not linear and is not a natural way of driving.

The repeated use of the word "may", indicates that this could be more guessing than hard documented facts. But could they be on to something here?
Does anybody know how much our throttle opens when we mash the pedal into the carpet? -And does it by any chance open more when in 'sport' than in 'normal'? Because that's actually how it feels.

The reason they use may is that it could be a percentage other than they listed but it will it will be some percentage, depends on the vehicle. The stock map is not linear. The reason it is not is to improve economy and make it easier to make the speed changes without heads bouncing off the headrests.

The engine does not produce more HP in sport mode. Assuming those that think the go pedal response is faster, more linear, are correct that will feel like there is more HP.

My sense is Sprint Booster is the most popular but there are several other options that are at other price points because of the list of features are longer or shorter.

At least in that thread posters focused on how it changes the shift program, and didn't mistakenly attribute suspension/steering/throttle pedal response benefits to the transmission sport shifting mode.

I have no numbers of how much more...but the documentation does indicate that there's a difference between the "adaptive" sport mode vs the manually selected sport mode.

BMW only uses simple adjectives "higher" vs "maximum" to distinguish the difference between the tranny's shift pattern in the adaptive sport mode (when in "D") versus the (manually selected) extreme sport mode.

Also note that the documentation about ATC (adaptive transmission control) mentions NOTHING about suspension or steering. This generation of BMWs (e38/e39/e46/e53) doesn't have the same BUS system like the e60/e70/etc. And very few BMW models of this era had a "SPORT" button. The only one that comes to mind is the E39 M5. I'm not sure if the e46 M3 had this feature or not.

ATC (adaptive transmission control) will automatically select 1 of 3 transmission shift programs based on driver influence (dynamics of accelerator pedal movement) upon EACH start-up...and this information/data is NOT stored in the TCM (tranny control module)...thus we get the "adaptive" nature of ATC:

1. extreme economy (granny-toe) mode
2. economy mode
3. sport mode (adaptive sport mode when transmission gear shift is in "D"...but driver is mashing the gas pedal fast and far)