Since September (last time I did this) I noticed the shifting was becoming stupid and sluggish again. I performed this reset again and once again shifting and throttle response seems to be much improved. The timing of this procedure seems to be a bit slow compared to how fast the check engine flashing light reacts. (at least in my 2013 M37)

Ok so nine months the shifting was more responsive? then got sluggish over time. is there a way to keep the ECU fresh is this something that will have to be done maybe once a year.

jtsull wrote:Since September (last time I did this) I noticed the shifting was becoming stupid and sluggish again. I performed this reset again and once again shifting and throttle response seems to be much improved. The timing of this procedure seems to be a bit slow compared to how fast the check engine flashing light reacts. (at least in my 2013 M37)

Are you the only driver?

lovemycarM35 wrote:is there a way to keep the ECU fresh is this something that will have to be done maybe once a year.

Yes. Drive it like you stole it.

The ECU "learns" your driving style. It doesn't actually learn anything. Instead, it selects a shift schedule based on your driving style. IIRC, there are three different shift schedules for Normal and two for Sport that the ECU chooses based on driving style.

The only other stuff that the ECU "learns" is the long-term fuel trim and idle parameters. The LTFT will not affect performance unless it's way off - in which case you have a mechanical issue. The idle is either within specifications or it isn't.

I'm the only driver. I drive aggressively - don't baby it, however I do a ton of highway travel and driving in traffic.
Where-as the majority of driving is either steady state or slow traffic, perhaps it decides to learn to adopt a shift pattern to save gas rather than be responsive.
(Meaning it acts more like the ECO pattern).

Right after this thread was started, I tried several times to get it to clear, and think I got it once. It was such an effort, I haven't tried it again.

I want to learn my car. I don't want it to learn me. It can't see context, and if I want something different, I have that lovely selector knob that will let me choose eco or sport. I really am baffled at who actually wants this feature and why we can't disable it.

Every car nowadays has this. It's easier to engineer a car to change its shifting pattern to suit many different drivers. A young guy vs an old lady will no doubt drive the same car differently. The old lady may complain it revs too much and is noisy and shifts harsh if it is always sporty. The young guy may say it shifts too slow and soft and too early if it's programmed more for an old lady. So they find a happy medium and also allow the computer to "tailor" itself to the driver style.

Of course it's still a compromise.

If you want a car that doesn't "learn," buy an old carbureted, manual sports car. Set it how you like it and enjoy.

I thought that's why we had the option of Eco/Standard/Sport.

We do have those optionsand they're pretty good at what they do, but they still compromise a bit to ensure the "majority" of people won't complain about problems.

Standard mode has the hardest time fitting in for this reason - it changes the shifting schedule from lame to sporty the most based on driving.

Anyone try this on a 2015 or newer Q70? I know everything should be the same as far as mechanical goes but I have tried it without success...

Got this to work on my 2015 Q70, I forgot I had my driving cameras plugged into the 12v socket in the middle console. Once I unplugged it everything worked!

Tried this tonight on my 12 m37 with no success. Tried about 10 times and gave up... Too bad :/

ArmedAviator wrote:Every car nowadays has this. It's easier to engineer a car to change its shifting pattern to suit many different drivers. A young guy vs an old lady will no doubt drive the same car differently. The old lady may complain it revs too much and is noisy and shifts harsh if it is always sporty. The young guy may say it shifts too slow and soft and too early if it's programmed more for an old lady. So they find a happy medium and also allow the computer to "tailor" itself to the driver style.

Of course it's still a compromise.

If you want a car that doesn't "learn," buy an old carbureted, manual sports car. Set it how you like it and enjoy.

Unfortunately you're not always in a position to drive it like you stole it. If I had my choice I would always drive fast. However, there are days when there is bumper to bumper traffic which you can't avoid and the computer learns your stop and go traffic and learns this as your driving style, which is the point the previous poster ICRF was trying to make. Fact is the car has multiple settings that just don't work properly. The old lady should be driving in normal/standard mode and the young guy should be driving in sport mode. Sport should not have to adjust to my driving style, it should stay SPORT. Normal should stay normal.

I personally think it's an easy out for engineers who cannot figure out how to make a transmission shift properly. Just tell the end user that it's a feature....(adaptive driving style)

so I just got a 11 m37s I should try this?

ssmrico wrote:so I just got a 11 m37s I should try this?

Can only help. Or you can just disconnect your battery for 8-12hrs. Should do much the same, IIRC.

oh ok good to know lol. and hey cool someone still active on here

ssmrico wrote:oh ok good to know lol. and hey cool someone still active on here

This community (and the Y50 community) is decently active.

anyone can confirm the battery disconnect way? if it works too

if I do the battery one once reconnected what all do I have to relearn ? remote key and all or just radio stations or what? don't want to do it then be stuck

Just radio stations, maybe memory seats, etc.

Cool not bad thx

I recently did some electrical work and disconnected the battery. You will also lose auto up on the windows. The fix is to roll them all the way down then back up holding the switch in the up position for 8-10 seconds. I did lose memory seats but not radio stations.

ok good to know thank you

Tried this twice....I must really suck cause I can't get it smh

lol

Thread from the dead lol.
This also took me several tries to get the timing right, after my first few attempts I was getting irritated and then my battery died.. I was pretty pissed off. Got battery replaced, then once I got home two more trys later I finally got it. My M was sluggish and didn't pull very well, if I'm driving about 40 and accelerate it felt hesitant and then it would jump and WOT on me. That's fixed now after the relearn. It even did the same if I would cruise down the highway. In happy its much improved now, esp take off.. I love this car!!

nice I think mines is due to do this again

I'm hoping it relearn so ir doesn't act up again it wouldn't make sense to have to keep resetting the ECU

I just put it in sport if i want to drive aggressively and make sure to switch it to normal with normal driving which works very well. The normal mode isn't even bad by any means just doesn't downshift as hard.

Just did this twice. Read the instructions and watched the video a couple times before doing so. On my M37, I have to hit the Start button THREE times to get it to the "ON" state. I also had the video playing along as I did this and just followed his lead simultaneously. After completing it the 1st time, I went for a drive but didn't notice any difference so I did it again just to make sure I had it right. Still no difference. Car wasn't sluggish before so I'm guessing I was good from the jump.