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      11-02-2010, 09:41 AM   #1
flynbulldog
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2011 335is traction control / stability control, please help

Is my new 335is a true sports car?

I know how to disable the traction control - one push for limited TC and a second long push for "inactive"
This will let me do a burnout in a straight line or get up the driveway on a snowy morning but get the car sideways and the ECU still cuts the throttle!

I'm guessing the car has stability control that wont allow spinning the tires while sideways?

I want to autocross this car and I need full control to steer with the throttle. I'd also like to do a little drifting (all on a closed course - of course)

I need to disable the stability control, anybody know the secret? I'm guessing that this is a new feature (problem) with the 335is

Another problem is that there is a throttle override on the brake with this new car so I can't power-brake to launch.
One touch of the brake and the throttle is shut down.

I understand safety and all but I thought I was buying an enthusiast's car. Is the new is neutered?

It's like owning a handgun that won't fire when you point it at someone; it's safer but it won't do you much good when you really need it.
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      11-02-2010, 09:55 AM   #2
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You can't brake torque a DCT.
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      11-02-2010, 10:09 AM   #3
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Quote:
Originally Posted by flynbulldog View Post
Is my new 335is a true sports car?

I know how to disable the traction control - one push for limited TC and a second long push for "inactive"
This will let me do a burnout in a straight line or get up the driveway on a snowy morning but get the car sideways and the ECU still cuts the throttle!

I'm guessing the car has stability control that wont allow spinning the tires while sideways?

I want to autocross this car and I need full control to steer with the throttle. I'd also like to do a little drifting (all on a closed course - of course)

I need to disable the stability control, anybody know the secret? I'm guessing that this is a new feature (problem) with the 335is

Another problem is that there is a throttle override on the brake with this new car so I can't power-brake to launch.
One touch of the brake and the throttle is shut down.

I understand safety and all but I thought I was buying an enthusiast's car. Is the new is neutered?

It's like owning a handgun that won't fire when you point it at someone; it's safer but it won't do you much good when you really need it.


'Sports Car':



'Performance/Sporty Car':




The IS is a slightly higher performing 335i with various interior and exterior OEM mods.
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      11-02-2010, 10:09 AM   #4
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ok we got that straightened out, now how about the stability control?
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      11-02-2010, 10:15 AM   #5
flynbulldog
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neutered sports car:

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      11-02-2010, 10:27 AM   #6
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Just a dumb question; if you knew you wanted to auto-x and drift why would you buy anything other than a manual?
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      11-02-2010, 12:17 PM   #7
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anybody know if the stability control can be switched off?
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      11-02-2010, 04:12 PM   #8
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Found this:

Quote:
Originally Posted by Calgary Agent View Post
Given where I live, I use DTC extensively during winter *now* as well as occasionally in the summer. As others have mentioned, according to BMW the DTC program is a subset (option) of the overall DSC

There are 3 modes, controlled by small DTC button on dash

1 >> DSC enabled *this is the default (startup) mode, and it means full dynamic stability control*
2 >> DTC *enabled by briefly pushing / releasing dash button* ... meant to be used when you want over-steer (summer) or in winter snow/ice conditions. It allows back end to slide without power being cut, and is most useful for better starts from a stop light or stop sign when there's limited traction. I recommend this setting for awful driving conditions
3 >> DSC/DTC totally disengaged. Enabled by pushing/holding dash button for 5 seconds. Only recommended for dyno testing, not street driving

Cruise control does NOT work when DSC is disabled (ie in either mode #2 or #3 above).
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      11-02-2010, 04:40 PM   #9
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Quote:
Originally Posted by MikeJabb View Post
Found this:
That's great but that is not how my car operates...

I had my car in the fully disabled mode (5 second long push - caution light on the dash) and tried to get the car into a drift -
as soon as the car got a little sideways with the tires spinning power was cut.

I'm now thinking that stability control cannot be disabled with the DCT.
I find it interesting that nobody else seems to care. I hate not being in control, the shitty response from the throttle-by-wire is bad enough...

It's really a let-down for me with what I thought was a performance car.

I was originally going to buy a Camaro SS 6MT... it would have saved me $25grand and probably would have been faster, more fun, and more reliable.

oh well, I'll throw a few performance mods on there and have a great time with it for a few years then move on to the next thing I can't live without...

Last edited by flynbulldog; 11-02-2010 at 06:07 PM.
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      11-02-2010, 04:55 PM   #10
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That doesn't make sense. I'll double check my owners manual tonight.
You try it with the the sport button activated too? I can't say I've tried it yet in my car.
Worst case, I'm sure it could be coded out.
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      11-02-2010, 05:10 PM   #11
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Let me ask a question. When you were trying to drift, while you were on the accelerator, did you press the brake? BMW's do have a safety feature that overrides the gas when you press the brake pedal. It prevents the unintended acceleration issues that Toyota was having.
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      11-02-2010, 06:00 PM   #12
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didn't touch the brake

I don't think I had the sport button activated - I don't recall that detail.
I did have it in manual.

what does "coded out" mean and how would I do that?
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      11-02-2010, 06:16 PM   #13
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'Coded out' as in changing the software via a reflash.

I STILL think there has to be a way to completely turn of all traction control. There has to be way or a reason why it didn't work for you. Actually, check over on the M3 board... They have the same DCT trans.
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