[heffs550]

Maybe this is a silly question, but are all of you guys using premium (93 octane)? I notice a dramatic difference in throttle response if I fill up with mid-grade 89. With premium there's much less delay.

[jnkirk1974]

I only use premium fuel. However, I'm still really confused with what people are calling "delay". In sport mode, I get ZERO delay. Instant power. Normal and comfort modes have a little more relaxed throttle response.

So, if there is a desire for quick throttle response......sport and sport+ are the way to go.

[Klecha man]

Originally Posted by Alan l.

This is how my 2013 535 behaves... Sport/Sport+ combined with the Sports Auto Transmission in Sport mode = IMMEDIATE TAKE OFF AND THROTTLE RESPONSE.

Alan

I tried that and I'm not seeing a diff...interesting you feel the instant response. My take on this is unless you power brake the car,there will always be a lag until the rpms hit about 3k which is when the turbo truly kicks in.

Btw, do you have any tunes installed?

[Alan l.]

No tune yet.

All turbo cars have some lag and it's just the nature of them. It is barely noticeable on my 335 and now f10.

Maybe you have too high of an expectation for the 535? Turbos just won't ever feel like a NA car if that's what you are after. Even the mighty M5 has some lag according to reviews.

Alan

[jnkirk1974]

Originally Posted by Klecha man

I tried that and I'm not seeing a diff...interesting you feel the instant response. My take on this is unless you power brake the car,there will always be a lag until the rpms hit about 3k which is when the turbo truly kicks in.

Btw, do you have any tunes installed?

Okay, are you talking about throttle response or turbo lag? There appears to be two different discussions here........

[RambleJ]

Originally Posted by jnkirk1974

Okay, are you talking about throttle response or turbo lag? There appears to be two different discussions here........

If its throttle lag that people have they may want to reset their tranny adaptation. People seem to baby their cars too much when they first get them and the car adapts to that driving style.

Not too sure if this works on the f10's but for the previous models. Putting the "on" state ( ignition pressed, but engine not on ) hold the accelerator down for 30 seconds, release. Start the car and your it should be back to fresh and relearn the new driving style.

[jnkirk1974]

Originally Posted by RambleJ

If its throttle lag that people have they may want to reset their tranny adaptation. People seem to baby their cars too much when they first get them and the car adapts to that driving style.

Not too sure if this works on the f10's but for the previous models. Putting the "on" state ( ignition pressed, but engine not on ) hold the accelerator down for 30 seconds, release. Start the car and your it should be back to fresh and relearn the new driving style.

I do this every so often. However, my car has never had issues with a lack of throttle response. Mine is great!

I think some people are talking about throttle response and some people are talking about turbo lag.

Either way, my car has none of the above. Mine is just fine........

[RambleJ]

Originally Posted by jnkirk1974

I do this every so often. However, my car has never had issues with a lack of throttle response. Mine is great!

I think some people are talking about throttle response and some people are talking about turbo lag.

Either way, my car has none of the above. Mine is just fine........

I never have had any of these issues either. But then again I break my cars in like a champ.

[Klecha man]

I guess I should have been more clear. I'm not really worried about the turbo lag... It's more of a throttle response time than anything else. Regardless of which mode I'm in and I've tried all various options, off the line take off is always about 1 +/- second lag before the car actually takes off.

I also think this issue is specific to the 535 (not 550, 335, 135). I drove a 135 a few weeks back and did not notice this issue at all.

[jnkirk1974]

Originally Posted by Klecha man

I guess I should have been more clear. I'm not really worried about the turbo lag... It's more of a throttle response time than anything else. Regardless of which mode I'm in and I've tried all various options, off the line take off is always about 1 +/- second lag before the car actually takes off.

I also think this issue is specific to the 535 (not 550, 335, 135). I drove a 135 a few weeks back and did not notice this issue at all.

Have you tried resetting the transmission? Turning the car on (don't start the engine), hold the gas pedal down for 30-40 seconds, turn car off, restart the car.

It was mentioned above.

[Klecha man]

Originally Posted by jnkirk1974

Have you tried resetting the transmission? Turning the car on (don't start the engine), hold the gas pedal down for 30-40 seconds, turn car off, restart the car.

It was mentioned above.

no I have not... I'll try that today and see how it will behaves. Thx for the hint.

[Douggie]

Originally Posted by jnkirk1974

Have you tried resetting the transmission? Turning the car on (don't start the engine), hold the gas pedal down for 30-40 seconds, turn car off, restart the car.

It was mentioned above.

This method only fixes it temporarily. The lag will return in 1-2 weeks.

Definitely a software/firmware issue. Like all modern machines, software is key.

[jnkirk1974]

Originally Posted by Douggie

This method only fixes it temporarily. The lag will return in 1-2 weeks.

Definitely a software/firmware issue. Like all modern machines, software is key.

Well, I'm running the Dinan Stage 3 tuning, so software is certainly helping me.

However, if you have to do the process ever 1-2 weeks, it's only 30-40 seconds. Not too bad.

[Douggie]

Originally Posted by jnkirk1974

However, if you have to do the process ever 1-2 weeks, it's only 30-40 seconds. Not too bad.

Yeah, I've pretty much accepted the fact that my 2012 "Ultimate driving machine" is similar to my PC that I had almost 20 years ago that was running windows 3.x. The PC would get slower and slower over time and would not be quick again until I rebooted it or eventually re-format the whole system.

http://www.bimmerfest.com/forums/sho...d.php?t=617154

[jnkirk1974]

If this truly is a problem with these models, I'm assuming that my Dinan software is preventing me from having the same issue? I have immediate response. It's a rocket!

[Douggie]

Originally Posted by jnkirk1974

If this truly is a problem with these models, I'm assuming that my Dinan software is preventing me from having the same issue? I have immediate response. It's a rocket!

Yes, it is pretty certain that your Dinan software includes a throttle map that overrides the stock throttle map and is also tuned for quick response. There is no point tuning for higher horsepower if there is the throttle delay. The lag would become more obvious.

[528imsport]

Has any 1 tried the SBv2 on a F10 to stop the lag?

[Douggie]

Originally Posted by M_528i

Has any 1 tried the SBv2 on a F10 to stop the lag?

Yes, I've tried the Sprint Booster on my F10. The response is much better now.

[MWPos]

My local dealership accepted my rather vague complaint of rough idle and throttle delay and, without question or delay, updated the software. I had tried the adaptive parameter reset as mentioned above and the software update makes the car drive better, at first impression, than the reset did three weeks ago. The SA who gave my car back to me this morning said that this is a known problem on the first F10s.

[RambleJ]

Originally Posted by MWPos

My local dealership accepted my rather vague complaint of rough idle and throttle delay and, without question or delay, updated the software. I had tried the adaptive parameter reset as mentioned above and the software update makes the car drive better, at first impression, than the reset did three weeks ago. The SA who gave my car back to me this morning said that this is a known problem on the first F10s.

But if you continue to drive like a grandma. The car will adjust to that again and your throttle response will suffer.
So might as well on a regular basis give that gas pedal some love

[MWPos]

Excellent point, and I am proud to say that I am not the car's first owner. The grandma was the first owner, and now there's a new sherrif in town

And for when my Puerto Rican wife drives the car, I have a special placard that I put on the rear bumper that reads "zero-to-school in 60 seconds". The car is now being driven the way it's meant to be.

[Rbembas_M3]

Originally Posted by MWPos

Excellent point, and I am proud to say that I am not the car's first owner. The grandma was the first owner, and now there's a new sherrif in town

And for when my Puerto Rican wife drives the car, I have a special placard that I put on the rear bumper that reads "zero-to-school in 60 seconds". The car is now being driven the way it's meant to be.

My soon to be Puerto Rican wife can't drive my 535i 6MT and when I pop the clutch at 6000 it scare the shit out of her. I've told her I would teach her how to drive a MT
All kidding aside my problem is shifting into second there is throttle delay and some times the DTC kicks in? And yes I'm in sport mode. I'm taking my car in after Christmas I shouldn't be loosing two to three seconds. I've done the reset and to be honest haven't noticed any change in throttle response, about the same two to three seconds.