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  1. #1
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    Odd Steptronic behaviour 07 328xi

    Anyone had this one? I was accelerating moderately at about 35 mph when a moron pulled out in front of me (into the middle of both lanes of course). So I had to hit the brakes firmly, when the moron finally committed to the right lane I punched it as I went into the left lane, and the car stayed flat. Stayed in the higher gear for a full second, until I let off and punched it again. Then it down-shifted like it should. Is there an option to have the steptronic be obedient? I don't want "adaptive" I want consistency.Prior Cars: 05 M3 SMG, 04 Audi S4, 97 740il, 95 M3 Coupe.
    2007 328xi Steptronic, Premium, Sport CWP.


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    Get a manual. They go in the exact gear you want.

    Did your SMG shift perfectly?

    Sounds like you caught the tranny in the indecisive spot. Never seen one that didn't go soft once in a while.

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    Re: Get a manual. They go in the exact gear you wa

    Only when I turned DSC off so I could use transmission mode 6 did it behave quickly enough. I rarely used it in automatic mode, it was too unpredictable. (actually somewhat predictable, usually decided to shift when I didn't want it too...)Prior Cars: 05 M3 SMG, 04 Audi S4, 97 740il, 95 M3 Coupe.
    2007 328xi Steptronic, Premium, Sport CWP.

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    Odd Steptronic - Dealer response.

    Took it in to the dealer, they test drove it, (interesting the repair ticket didn't describe the situation, only "Under hard acceleration the transmission has an excessive delay in down shift") and they checked it for all updates on software.
    They mentioned
    A) did you go all the way to the floor there's a little sensor there you may not have triggered. (Bull. I floored it.)
    B) this isn't a 335 it doesn't have the power you're wanting. (Duh I traded in an e46 M3, I know the difference.)
    Prior Cars: 05 M3 SMG, 04 Audi S4, 97 740il, 95 M3 Coupe.
    2007 328xi Steptronic, Premium, Sport CWP.

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    Odd Steptronic further testing.

    The transmission is not "intelligent".
    If I go a steady 45mph, get on the brakes firmly, slow the car to about 20mph then immediately punch it, there's no power.
    It appears the tranny is down shifting one gear at a time, in a leisurely manner. I can watch the tach as the engine sits at 1000rpm, then steps up to 1500, then a bit higher, then finally it winds up and begins to pull. From the time I punch it to the time I finally get power is about three and a half seconds.
    WTF? BMW of all manufacturers can't program a transmission to shift directly to second any time the pedal's on the floor and the car's only doing 20?
    I don't remember my 97 740il having this problem.
    In 10 years they've made "progress"?

    I'll test drive my friend's 2000 740 or get him to do it. I bet this doesn't happen.

    Would someone else with a 328xi & steptronic please try the same test for me?

    I can think of a number of driving situations where one needs to brake, then needs power immediately. This is not even remotely safe.


    Prior Cars: 05 M3 SMG, 04 Audi S4, 97 740il, 95 M3 Coupe.
    2007 328xi Steptronic, Premium, Sport CWP.

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    Re: Get a manual. They go in the exact gear you wa

    Unfortunately I didn't try this particular test during the test drive. It would have been a non-negotiable deal breaker.
    Re: standard trans: All the CPO'd 328's they had with standard transmissions were sedans without the sport package. They were just too sloppy handling for me. (Non sport pkg equipped sedan guys and gals don't get upset, I know they're still way better than 90% of the stuff out there, just too soft for me.)Prior Cars: 05 M3 SMG, 04 Audi S4, 97 740il, 95 M3 Coupe.
    2007 328xi Steptronic, Premium, Sport CWP.

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    I have to agree with you, I have had automatics

    that were reliable about kicking down quickly when punched. (except when you threw them a curve ball by cycling up and down, and then catching them at the wrong time)
    Sounds like you got the standard dealer hand holding when they know ahead of time that it is what it is.
    Face it, probably most modern day BMW buyers are not exactly wanting razor edge performance with their auto. They'd rather think their machine is race heritage, but mostly make trips to the grocery store.

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    Were you driving in Sports shift mode?

    It has more aggressive shifting pattern.

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    Sports shift mode? No Just driving down the street

    Prior Cars: 05 M3 SMG, 04 Audi S4, 97 740il, 95 M3 Coupe.
    2007 328xi Steptronic, Premium, Sport CWP.

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    Re: It is what it is?

    I sincerely hope that the behavior of the trans is not normal. Like I said in another section within this thread, I'll get the hell out of the car somehow if it can't be fixed. I'm not willing to die because BMW designed a worthless transmission.
    I want all the tools, all the time. Would you want a car that the steering worked most of the time?Prior Cars: 05 M3 SMG, 04 Audi S4, 97 740il, 95 M3 Coupe.
    2007 328xi Steptronic, Premium, Sport CWP.

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    Can you duplicate it? Sounds like you caught the

    car going from 4 to 3rd, and then hit the gas it stayed in 3rd. I wonder if X-drive has something to do with it as well.

    If you can't duplicate it then don't worry about it.



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    I can duplicate it. Dealer has it again.

    See "Further testing" post below. I took it in to the dealer today, took the shop foreman on a test drive, showed him exactly what it was doing. Just got a call, they need to update some software and do some "adaptation". I'm worried more now. "adaptation" scares me.Prior Cars: 05 M3 SMG, 04 Audi S4, 97 740il, 95 M3 Coupe.
    2007 328xi Steptronic, Premium, Sport CWP.

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    I can duplicate it. Dealer has it again.

    See "Further testing" post below. I took it in to the dealer today, took the shop foreman on a test drive, showed him exactly what it was doing. Just got a call, they need to update some software and do some "adaptation". I'm worried more now. "adaptation" scares me.Prior Cars: 05 M3 SMG, 04 Audi S4, 97 740il, 95 M3 Coupe.
    2007 328xi Steptronic, Premium, Sport CWP.

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    they can return the adaptive to default



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    Run Away from 07 328xi's w/ Steptronic THEY SUCK!

    Dealer had the thing overnight. Installed new software from BMW to the DME (Engine computer), the transmission control unit, and cleared the adaptations from the vehicle memory. (F#$KING adaptive transmission).
    Now instead of three and a half seconds to down shift into a useful gear it only takes three. Woo Hoo, now it only takes three times as long as it should. It's SOOOO much better....(& it will get worse as the trans "adapts" to normal driving.)
    With the same test:
    My 2000 Chevy work truck takes less than a second,
    My friend's 2000 740il takes less than a second,
    Another friend's 96 Taurus takes less than a second,
    My 1997 740il took less than a second,
    BMW put this thing in a car on purpose?

    I've never in my life heard of an automatic transmission that takes this long to down shift, let alone driven a car with one.
    Prior Cars: 05 M3 SMG, 04 Audi S4, 97 740il, 95 M3 Coupe.
    2007 328xi coupe Steptronic, Premium, Sport CWP.

  16. #16
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    Noticed similar behavior 2007 328i RWD

    My wife and I drove a 2007 328i at a local Chevy dealer and we noticed the auto transmission seemed lethargic. We liked the car but the transmission was an absolute stop. Then I read one of Mike Miller's tech answers in Roundel where he said the auto trans in the recent 3-series cars was one of the worst transmissions BMW ever installed. My wife is far from an enthusiast driver, but this incident reinforced why she'll never order a car with auto transmission. I'm proud of her.

  17. #17
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    Re: similar behavior 07 328i RWD

    I never thought to test down shifting after rapid deceleration. Sport mode was acceptable, normal down shift when just cruising along then punching it is OK.
    It's only after you get hard on the brakes that it turns to garbage.
    If the dealer or BMW NA doesn't come up with a way out for me from this POS I may never own another BMW.

    I will probably do a lot of posting to get folks to test their cars for this so they know if they have this problem or not, and can be prepared.
    (If you immediately put it in manual mode while you're braking and force it down into the gear you want you won't have this horrid delay.)

    Thank God I wasn't on the freeway when I found this out!
    (I don't think St Peter will let you into heaven if you last words on earth are move you F~*king piece of Sh*t.)
    Prior Cars: 05 M3 SMG, 04 Audi S4, 97 740il, 95 M3 Coupe.
    2007 328xi coupe Steptronic, Premium, Sport CWP.

  18. #18
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    Re: Odd Steptronic behaviour 07 328xi

    Summary.
    I can't afford to get out of the car. It's mine for a while.
    Nice car, nice transmission as long as you don't have to get pretty hard on the brakes when it's in 5th or 6th. The only way to get power quickly thereafter is to start shifting down manually as you're braking.

    I will be writing BMW a letter on this, I'm still astonished and disappointed they'd install a trans that performs like this in a BMW.

    Anyone know of an inexpensive way to connect into the OBDII port & record what's happening?Prior Cars: 05 M3 SMG, 04 Audi S4, 97 740il, 95 M3 Coupe.
    2007 328xi coupe Steptronic, Premium, Sport CWP.

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