[XEN55]

So on the drive home from work today, I decided to let off some steam and put the car into M mode . After a few miles of driving I started seeing brake lights and began to slow down using a combination of the brakes/downshifting. It was at that point I realized something was off.

When I got the Alpina flash done a month ago there was absolutely a noticeable difference in the up/down shifts and how crisp/concise they were. Today, however, the car did NOT downshift as crisply as I was hoping. To be quite frank, the downshift was as laggy as before the Alpina flash. At this point, I was curious and began testing the shifts to see what the hell was going on. Sure enough, it was still lagging and not rev matching as it used to.

As I was coming to the closest light neat my house, I decided to downshift/brake again. This time, the car down shifted exactly how it was supposed to, crisp and concise! After I noticed this I continued driving and noticed the crisp feel of the Alpina flash was on and off. Sometimes it shifted fine and other times it would lag.

My question is, has anyone else witnessed this phenomenon? I'm pretty bummed as to how my car has been acting in the past few weeks and this was the cherry on top.

Disclosure:

Just installed brand new winter tires this week and the DSC light has been going off every few seconds and I'm assuming it's because of the crappy traction from the winter tires. This may sound stupid, but are there any correlations between this and the DSC intervention?

[aren93]

Originally Posted by XEN55

So on the drive home from work today, I decided to let off some steam and put the car into M mode . After a few miles of driving I started seeing brake lights and began to slow down using a combination of the brakes/downshifting. It was at that point I realized something was off.

When I got the Alpina flash done a month ago there was absolutely a noticeable difference in the up/down shifts and how crisp/concise they were. Today, however, the car did NOT downshift as crisply as I was hoping. To be quite frank, the downshift was as laggy as before the Alpina flash. At this point, I was curious and began testing the shifts to see what the hell was going on. Sure enough, it was still lagging and not rev matching as it used to.

As I was coming to the closest light neat my house, I decided to downshift/brake again. This time, the car down shifted exactly how it was supposed to, crisp and concise! After I noticed this I continued driving and noticed the crisp feel of the Alpina flash was on and off. Sometimes it shifted fine and other times it would lag.

My question is, has anyone else witnessed this phenomenon? I'm pretty bummed as to how my car has been acting in the past few weeks and this was the cherry on top.

Disclosure:

Just installed brand new winter tires this week and the DSC light has been going off every few seconds and I'm assuming it's because of the crappy traction from the winter tires. This may sound stupid, but are there any correlations between this and the DSC intervention?

I have the same problem I think. Sometimes I downshift and it feels like before the flash, just really slow.

[XEN55]

Originally Posted by aren93

I have the same problem I think. Sometimes I downshift and it feels like before the flash, just really slow.

aren93 - Our cars must have rolled off the assembly line at the same time brotha!

Our cars seem to be having the same one off problems that no one has mentioned on this forum before. Have you noticed a trend with your car when it comes to the shifts? I could not find a pattern to save my life.

[aren93]

Originally Posted by XEN55

aren93 - Our cars must have rolled off the assembly line at the same time brotha!

Our cars seem to be having the same one off problems that no one has mentioned on this forum before. Have you noticed a trend with your car when it comes to the shifts? I could not find a pattern to save my life.

Yeah maybe lol I have a 2012 but it was made in 2011

[Johnny Boost]

Originally Posted by aren93

Yeah maybe lol I have a 2012 but it was made in 2011

Aren, did you get the issue resolved with your rough idle?

[aren93]

Originally Posted by Johnny Boost

Aren, did you get the issue resolved with your rough idle?

Yea basically the car never turns off anymore and doesn't jerk at idle. I believe it had to do with my vacuum line, strange.

[peterparker]

Originally Posted by XEN55

So on the drive home from work today, I decided to let off some steam and put the car into M mode

Apply heavy throttle prior/while shifting.

When the tranny see's that there's load on the engine, it will shift hard and fast. If you're just cruising(light throttle) it's just going to shift normal.

And what does M mode do?!

[Dark_Knight_335]

Yeah there are definitely times when this flash really concerns me....

[oneha1980]

Hmmm I was thinking about getting alpina flash done but I'm having second thoughts now...

[melloww22]

M-mode and S-mode are great for me but D-mode shifts too early...

[NoImDirtyDan]

Originally Posted by peterparker

Apply heavy throttle prior/while shifting.

When the tranny see's that there's load on the engine, it will shift hard and fast. If you're just cruising(light throttle) it's just going to shift normal.

And what does M mode do?!

+1 I have noticed this too. When im driving the car like I stole it the shifts are always on point. However, when I am not driving as aggressively I notice the "lag"

[peterparker]

Maybe you guys are just expecting too much?
lol

[peterparker]

Originally Posted by oneha1980

Hmmm I was thinking about getting alpina flash done but I'm having second thoughts now...

Just do it! It's totally worth it. You just have to know how to drive you car in Sport and Manual mode. aka 40%+ throttle

[Dark_Knight_335]

Originally Posted by peterparker

Maybe you guys are just expecting too much?
lol

Not really- we are just expecting it to do what it is supposed to do as it is sold to us, and sometimes it just doesn't- and the transmission is shifting erratically.

I'm sure these moments of batshit behavior is shortening the life of the transmission unit.

I've had this flash about two times in the past, and I put it back to stock before because of issues just like this.

The crazy part about it is it seems to happen more in the wintertime than in the warmer months, which makes no logical sense I know, but seems to be the case.

As much as I enjoyed the faster shifts when it's shifting the way it's supposed to, more and more I'm thinking it's just not worthwhile.

The bottom line is we're using a software program that just was not designed to work with our vehicles specifically, and just so happens to work based on a few common denominators made possible courtesy of a hack - take that for what it's worth.

[peterparker]

Originally Posted by Dark_Knight_335

Not really- we are just expecting it to do what it is supposed to do as it is sold to us, and sometimes it just doesn't- and the transmission is shifting erratically.

I'm sure these moments of batshit behavior is shortening the life of the transmission unit.

I've had this flash about two times in the past, and I put it back to stock before because of issues just like this.

The crazy part about it is it seems to happen more in the wintertime than in the warmer months, which makes no logical sense I know, but seems to be the case.

As much as I enjoyed the faster shifts when it's shifting the way it's supposed to, more and more I'm thinking it's just not worthwhile.

The bottom line is we're using a software program that just was not designed to work with our vehicles specifically, and just so happens to work based on a few common denominators made possible courtesy of a hack - take that for what it's worth.

I think it's working fine for me, At least thats what I thought.... Can you take a video for me? I'm kinda concerned now! =[

[Dozhdbog]

I don't have the tranny flash, and I've experienced the same issues of gears holding far too long.

[Dark_Knight_335]

I'll try Parker- a bit tricky when driving, but I'll figure it out. Doz has a point as well, it's just more frequent with the flash.

[XEN55]

Bump!

Thank you all for the feedback thus far but the issue isn't with gears holding too long or the car only driving mildly when I'm driving like a grandma. Can anyone else please chime in on this???

This issue is pretty constant now and is NOT me "expecting too much" as initially stated. I drove the car home from work today and I literally felt the difference in the shifts in about a mile of so. The first set of down shifts were crisp as expected and the second set were laggy as if the car didn't even have the TCU flash! Can someone with experience please help me put this issue to rest once and for all?

[wildcatcrazy]

You can try resetting the adaptations and see if that will help.

[JLGM4]

i cant even drive in D mode anymore. it shifts way to early and is no fun to attempt to drive. I guess thats a good thing though because ive been driving in manual mode even since. haha but yes I have had some of the same problems such as when i downshift (normally when i downshift to second or sometimes first if im going slow enough) I tend to occasionally see that the shifts are slow like before the flash. havent found a fix

[07chupacabra]

There are fixes for the shift hungry D mode, check on n54tech.com

[335m]

I seem to have a similar problem where in S mode driving normally (not aggressive) the downshifts are sluggish, but the minute I start driving aggressively the shifting is on point.

To be honest I do not consider the sluggish downshifts to be worse than stock, I think it is just the contrast between aggressive and normal driving that bothers me.