[2013mingrey335i]

Does anyone have this issue..
The first to second shift using either paddles or stick the car drops power for a few seconds after the switch in 2nd gear at anything over half throttle.
Basically all the lower gears till 4 then it shifts fast and hard no power drop
This happens in sport and sport+ modes
Going to dealer Friday just wanted to see if anyone else had the issue car has 3000 miles

My 335 had no issues was a beast from day one no tune or anything

[AWM235i]

Ive noticed that if you aren't in sport + or dsc off mode and under hard acceleration in lower gears that power is limited. I imagine what you and I are experiencing is the assists cutting power to the wheels and or some wheel spin which you will feel loss of power. You notice in lower gears because of gear ratio of trans and tq converter with all the hp/tq this car has. I also noticed the car is noticeably quicker after engine and tire tread have heated up some.

[dtcoff]

Yes, I have the same issue as OP. It hesitates changing gears in manual at WOT at high revs. It's fine changing when left in D or DS.

Had it checked by dealer last month during first service, but they didn't find anything wrong. Spoke with the service manager and he noticed the same thing on their demo M235 too.

[2013mingrey335i]

So it's just a glitch some cars have that's great hopefully the dealer can fix it
Maybe a tune will fix it?

[2013mingrey335i]

Update
Dealer said the m4 was having the same type of problems
They did a software update to my car picking it up tomorrow will report back

[horsepower_and_hounds]

I noticed similar characteristics and thought it was the BMS Stage 1 I installed. Standing by to hear results

[dtcoff]

Originally Posted by dtcoff

Yes, I have the same issue as OP. It hesitates changing gears in manual at WOT at high revs. It's fine changing when left in D or DS.

Had it checked by dealer last month during first service, but they didn't find anything wrong. Spoke with the service manager and he noticed the same thing on their demo M235 too.

Tried again today and surprise, it seems to be all good now. Hopefully, it's a permanent fix, whatever they did.

[2013mingrey335i]

Ok got the car back and they did do a software update to it.
There is absolutely no hesitation or delay in shifts now.
It shifts very aggressive and there is more popping from the exhaust on up shifts even at part throttle about 4000-4500 rpm
Anybody having this issue have them install the update I will look at my paperwork to see if there is any info on what type of update it was called

[shirejedi]

Originally Posted by 2013mingrey335i

Ok got the car back and they did do a software update to it.
There is absolutely no hesitation or delay in shifts now.
It shifts very aggressive and there is more popping from the exhaust on up shifts even at part throttle about 4000-4500 rpm
Anybody having this issue have them install the update I will look at my paperwork to see if there is any info on what type of update it was called

I'd be interested in hearing what they called the update. I've notice hesitation here and there.

[jmr0311]

I have an appointment at the dealership this Saturday to look over this issue. It will help me if you could find information on software patch and posted in here. Thank you so much.

[2013mingrey335i]

Sorry for the delay I am waiting to hear back from the service manager with details on the update it should be today

[2013mingrey335i]

Heard back unfortunately they don't have any info I have to bring my key into get scanned to see what software level I have won't be able to go till Monday

[jmr0311]

I heard back from my dealer and they did this update to my car SIB 12 09 15 (ENCODED CONTROL UNITS).

The car feels way better and no more hesitation. Gear shifting is also more accurate on Sport and Sport+ mode.