Throttle Hesitation - DRIVING US NUTS!!!

Originally Posted by johanness

I asked already if someone has any experience with Sprint Booster or Pedalbox. No response. May solve it, but would love to hear from someone

A user on bimmerpost (marcoaf) is running the Hartge N20 tune and successfully installed the Sprint Booster.

http://www.sprintboosterusa.com/p-23...series-z4.aspx

I am planing on buying an x1 for my wife so I dropped by to read about current owners experiences. I can comment on is this topic because it was discussed to death in the e90 threads. One thing a can tell you is the car adapts to how you drive it and that's why the reset proceedure discussed here works. I have never experienced any lag due to the fact that I don't baby my car. If you drive it like you stole it the car learns your habits and will not lag. I am not talking about turbo lag which is different. Try not worrying about gas mileage for a full tank and get on it and I think you will see a vast difference. Remember these cars are driven at high speeds on the autobahn and the engines are made to run.

Originally Posted by greyX1

OK, we have had our X1 a few months, and it's really a second car, but in the few (1500) miles we have driven it we have been repeatedly honked at and been in a couple of close calls because of the stupid throttle hesitation. There is always about a 1 sec lag between pushing down on the pedal and the engine kicking in. It doesn't matter if you push down harder on the throttle, because then when it does kick in it is just more throttle.

My suspicion is that this delay has something to do with the Auto Start Stop (code named ASS for a reason), which we had the dealer default to off, so we don't have to deal with it. I have a feeling that by this time next year, the ASS function will be no more.

So are other people having the same problem? Or do we need to take the car back to the dealer to be inspected?

Seriously, a full second between pressing on the pedal and having the car respond!

I didnt realize that the dealer would do this for you...

Originally Posted by DCC

I didnt realize that the dealer would do this for you...

My dealer just did this for me a few days ago, when I had my X1 in for a bunch of other issues. They didn't charge me anything either. At first they didn't know how to do it, but I guess they figured it out.

Here's what the invoice states:
"Submitted Puma Case for activation code. Performed complete vehicle programming including CAS for conversion to enable MSA2 memory function"

Whatever that means. But the end result is that "ASS" defaults to whatever setting it was last in. So, if I shut the car off with ASS enabled, then it will be enabled when I next start the car. Likewise, if I shut the car off with ASS disabled, so will it be when I restart the car. This is specific to the key fob used, so if you like ASS and your significant other doesn't, you can each have it your way!

Originally Posted by jbone907

My dealer just did this for me a few days ago, when I had my X1 in for a bunch of other issues. They didn't charge me anything either. At first they didn't know how to do it, but I guess they figured it out.

Here's what the invoice states:
"Submitted Puma Case for activation code. Performed complete vehicle programming including CAS for conversion to enable MSA2 memory function"

Whatever that means. But the end result is that "ASS" defaults to whatever setting it was last in. So, if I shut the car off with ASS enabled, then it will be enabled when I next start the car. Likewise, if I shut the car off with ASS disabled, so will it be when I restart the car. This is specific to the key fob used, so if you like ASS and your significant other doesn't, you can each have it your way!

I thought there is a switch to disable this feature...

Originally Posted by nbercasio

I thought there is a switch to disable this feature...

There is a switch but you need to press it each time you start the car. Saving the last setting is much more convenient.

Originally Posted by Michael Schott

There is a switch but you need to press it each time you start the car. Saving the last setting is much more convenient.

Got it...better last setting memory...

For 2014s it is set from the factory to remember the last setting. I pushed the button in the dealership parking lot and haven't touched it since.