[LGCubana]

Depending on how your car currently reacts to the JB4, if you have an AT:

DTC = wheel slippage on an aggressive start from zero

[jkinsley]

I'm having exactly this issue with the 2011 335i 6MT convertible I purchased earlier this year. JimboMacism, have you found any solution? I'm toying with the idea of buying a Cobb AccessPort but afraid it won't help.

Originally Posted by JimboMacism

So I just purchased a used 2011 335i 6MT M-Sport that was built on 07/04/2011.

[AX75F92]

Does the Alpina flash help with this?

[maddmatth]

Do you find the throttle response fine if you press the Sport button? If so, PPK helps make regular mode just as responsive (but not as sensitive).
DME update may help on its own as well.

[jkinsley]

I don't have a sport button.

Originally Posted by maddmatth

Do you find the throttle response fine if you press the Sport button? If so, PPK helps make regular mode just as responsive (but not as sensitive).
DME update may help on its own as well.

[maddmatth]

Originally Posted by jkinsley

I don't have a sport button.

Oh right, manual. Sorry I completely overlooked that part
Sport button is an auto/DCT thing (odd that manuals don't get it though as it affects throttle response and sensitivity too).

Hmm maybe get it looked at. Turbo lag on these cars should be insignificant, if it's bad enough to be annoying then something isn't right.

The autos/DCTs can be a bit slugging in regular D non-sport mode just because they're designed to be smooth that way although I think the latest DME updates should sharpen then up. If you're shifting manually though, and BMW hasn't gimped it with that crappy throttle response the autos get in regular mode, there should be no lag.

Tuning the car shouldn't be the solution, the car is supposed to have virtually no turbo lag. If there's a mechanical issue, upping the boost is the last thing you want to be doing.

Might be something simple and cheap like a vacuum leak from a cracked intake pipe.

[jkinsley]

*sigh*

Why do I think I'm about to pay my BMW dealer to tell me nothing is wrong with the car?

[mashimarho]

Yeah, I've had this issue since I've owned my car from new. It's really annoying.

[E90 335xi]

Originally Posted by jgoens

I tried jb4 5-5 and the traction control light did not come on
don't know if traction control is lessened without light on.

The JB4 auto one-push DTC feature doesn't work on N55s. It's an N54 feature only.

[weehe126]

Originally Posted by E90 335xi

The JB4 auto one-push DTC feature doesn't work on N55s. It's an N54 feature only.

No, it does work. Have been using it for over a year.

[loesch]

Originally Posted by E90 335xi

The JB4 auto one-push DTC feature doesn't work on N55s. It's an N54 feature only.

Works for me. I just can't turn it off. lol.

[E90 335xi]

Originally Posted by E90 335xi

The JB4 auto one-push DTC feature doesn't work on N55s. It's an N54 feature only.

Oh wait. I got that one wrong.

It works on N55, just not on xDrive cars. That's it!

[loesch]

Originally Posted by jkinsley

*sigh*

Why do I think I'm about to pay my BMW dealer to tell me nothing is wrong with the car?

I have a 6MT too. Dealer didn't fix it, even after calling BMW NA repeatedly. Strangely enough, when I run BMS's E85 backend flash with lots of E85 my turbo lag is gone and throttle response is perfect. Terry said all he did was change the AFRs. I have since flashed my car with the PPK so now it's a little better.

[Rival]

So i do not know too much about a e90 335 but was planning up upgrading from my 328 very soon.

Is there any tune, or tune + DP that will fix this........or for the most part??

Ive been poking around for a while in this section (here n there for a yr) but have never seen anything like this.

I may go N54 unless there is a decent fix.....????

Anybody before i go get rid of my 08, 328....>?

[loesch]

Originally Posted by Rival

So i do not know too much about a e90 335 but was planning up upgrading from my 328 very soon.

Is there any tune, or tune + DP that will fix this........or for the most part??

Ive been poking around for a while in this section (here n there for a yr) but have never seen anything like this.

I may go N54 unless there is a decent fix.....????

Anybody before i go get rid of my 08, 328....>?

While I really enjoy being a part of the N55 group as we slowly progress with our cars, if I had it to do all over again, I would have gotten a 2010 N54.

[Rival]

Originally Posted by loesch

While I really enjoy being a part of the N55 group as we slowly progress with our cars, if I had it to do all over again, I would have gotten a 2010 N54.

from just looking at the other sections, the N54 looks to be badass & a nightmare.

the N55 is a lighter on both ends. power & BS........i cant afford to have a bad N54, it could drain my pockets badly.

The n55 seems about 40% better in terms of reliability but 40% less in power with bolt ons.

I can live with 340rwhp & 380rwtq but do not want this type of BS. If so, why not stay n54....???

[onezoso]

Well,

Here it is 12-22-16 and STILL I have not found a fix for the annoying throttle lag/delay and mine is getting WORSE!

BMW says nothing is wrong but I know believe they just want to run out the clock on my extended warranty and they can wash their hands of what they most likely know (on the inside) is a serious flaw with this issue!

Anyone find a fix?

[ANMVQ]

The fix is get PPK, I had the "lazy" throttle on mine. I just bought mine a month ago and coming from a fully bolted G37 with ECUTEK and "Throttle HIJCK" the pedal in the car was terrible. I went through joe@topgearsolutions as he is vendor here and got PPK whcih completely solved the throttle issue, and the Alpina TCM flash, Car is completely different. Rev matching downshifts and very crips shifts FTW. Again all these things I had in my previous car and are nice to have back!

PPK and Alpina cost is uner $250! and takes like 20 minuets

[335togo]

Probably not an option but I own a N54 car and N55 both with same mods and N54 pulls like a V8 and N55 like a little 2 stroke dirt bike. If I had it do over again I would NEVER and bought N55.Twin Turbo designed to address lower RPM hole/lag but of course was costing BMW too much money for mass production. Reserved for IS and M Cars

[STR8-6IX]

Originally Posted by JimboMacism

So I just purchased a used 2011 335i 6MT M-Sport that was built on 07/04/2011.

After owning it for a bit, and familiarizing myself with the vehicle, I have noticed that there is a TERRIBLE amount of lag between when I press the pedal, and when the power comes. Frankly, it is almost dangerous considering the fact that I'm not as confident pulling out in traffic, and quickly accelerating when needed.

From my searching it seems as though this was a DME issue, and when people brought their cars in (both N54 and N55) that the dealer flashed their car with new DME software that created these issues.

Now, has this been solved? Most of what I have found from searching dates back to 2011-2013. Could it be possible that my car just needs to get the software updated and it will go back to having snappy throttle response, and a louder idling exhaust? Or is PPK/Tune still the only way to solve this bs problem?

It's quite frustrating to buy a sports car as expensive as this, and not have the throttle be responsive; I'm pretty upset about it. Could somebody please clarify for me? I'm new, but searching could only yield me so much.

does your car burn oil? a motor which burns oil is a sign of poor initial break-in which affects overall engine response, especially of a turbo engine.