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Old 01-12-2009, 11:39 PM   #1
garabatoss
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Transmission Jerk?

Hi,

Bought a 2003, 325i STEPTRONIC with a small problem.

This problem is only present in D mode, not in SD (weird). But when you are coming to a stop, and the car is downshifting speeds, right around 15 mph the car does a sudden jerk, like a strong downshift from 2nd to 1st. kinda like someone rear ended you, but not as hard. Even when you don't use the breaks, if you are just rolling to a stop, it does it.

What's wrong with it? it's every time and only on D mode.

i replaced brake pads, rotors and bushings recently so it's not that. Sounds to me like a transmission problem, but only from 2nd to 1st when almost at at a full stop.

Any help ? suggestions?

thank u in advanced

Last edited by garabatoss; 01-12-2009 at 11:41 PM.
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Old 01-13-2009, 01:06 AM   #2
DWA626
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I have same problem... Don't know if it is normal or not
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Old 01-13-2009, 02:13 AM   #3
Chris@ModBargains
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Try and have your tranny software re-flashed to see if that can correct the problem.
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Old 01-13-2009, 01:40 PM   #4
garabatoss
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do i need to take it to a BMW dealer to have the software re-flashed?

I think my car is not under warranty, so would that be costly?

thanx
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Old 01-13-2009, 01:46 PM   #5
vminev
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How much does it cost to upgrade the software? I would like to do it too...
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Old 01-13-2009, 01:54 PM   #6
Goldman Sachs
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This is supposed to work on 04-current bmws but you could give this a try. I did it on my 01 and seemed to do something for me and it couldn't hurt you.

put you key in the ignition and turn it to the 2nd position ( farthest you can go without turning the car on)
Then push and hold the gas pedal down all the way for 30 sec. That is supposed to reset the transmission which learns your driving habits.

Start her up and take it for a drive.
Good luck, thought it was worth a try!

Last edited by Goldman Sachs; 01-13-2009 at 02:24 PM.
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Old 01-13-2009, 08:42 PM   #7
vminev
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Quote:
Originally Posted by Goldman Sachs View Post
This is supposed to work on 04-current bmws but you could give this a try. I did it on my 01 and seemed to do something for me and it couldn't hurt you.

put you key in the ignition and turn it to the 2nd position ( farthest you can go without turning the car on)
Then push and hold the gas pedal down all the way for 30 sec. That is supposed to reset the transmission which learns your driving habits.

Start her up and take it for a drive.
Good luck, thought it was worth a try!
Thanks ... Im gonna try that tomorrow morning and report back if I feel any difference..
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Old 01-13-2009, 08:50 PM   #8
zx9rbart
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The gas pedal to the floor trick resets the drive by wire (throttle) adaptation values, and it only lasts for a few miles, this is in no way related to your tranny. The reflash at the dealer costs typically 1 hour labor (108 dollars for me). There is a TSB about rough 2 to 1 downshifts on early steptronics (according to my dealer) and they said that a software upgrade fixes 99.9 percent of the problems. Dont waste your time with the key2 throttle down trick.
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Old 01-13-2009, 01:59 PM   #9
The Jerk
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I like Jerk transmissions
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Old 01-13-2009, 02:07 PM   #10
vladvm
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when was the fluid changed? maybe it's time to replenish the friction property of the fluid.
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Old 01-13-2009, 08:50 PM   #11
sunydude
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Ok Mine exactly had the same issue as above, I had the transmission flash done at the dealer which costed me around $250-300 (had some other maintenance done too). It definitely improved that jerk issue.

However I seem to be noticing it again now when its too cold out there in winter. Mine has 75k miles, so Im going to get the ATF changed soon.
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Old 01-13-2009, 08:53 PM   #12
walkabout
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Garabatoss,
there is a software upgrade for your transmission concerning "harsh shifting" to a stop. It cost me $240 at the dealership. My car is 2003xi
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Old 01-15-2009, 01:57 AM   #13
jakajuka
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Hi everybody.

I have a E46 330iA from 2002 with the same steptronic problem. I have changed the transmission oil and filter but the jerk remain.
The next step is a software upgrade/flash for the gearbox and then I will see.

regards
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Old 01-15-2009, 10:45 AM   #14
n2Bimmer
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this happens to me when the tranny is cold, maybe the first 2 shifts that i come to a stop, but only when cold. change your oil.
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Old 01-22-2009, 01:46 AM   #15
DWA626
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i'm hving my software re-flashed at the dealer today, hopefully it will work
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Old 01-22-2009, 01:54 AM   #16
jai_c
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im experiencing the same prob, but i notice it more when the car is cold. I had the solenoids replaced and the fluid changed about 4 months ago after my tranny died.
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Old 01-22-2009, 08:36 PM   #17
garabatoss
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Went to a mechanic and had the transmission software upgraded and IT WORKED!! so awesome. Thanks for the help. The software they used was EGS 0624.
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Old 01-22-2009, 09:22 PM   #18
//TRD power
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the tranny downshifts to 2nd gear in D mode. 1st in SD doesn't it?
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Old 01-23-2009, 02:44 AM   #19
johnyvirsis
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I have a 200 323ci, with a steptronic. But mine also does the jerking when i put it in R. I checked the tranny oil, looking good... Just recently bought the car... Does anyone know how much are the software updates for that?
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Old 01-23-2009, 09:39 AM   #20
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Quote:
Originally Posted by sunydude View Post
Ok Mine exactly had the same issue as above, I had the transmission flash done at the dealer which costed me around $250-300 (had some other maintenance done too). It definitely improved that jerk issue.

However I seem to be noticing it again now when its too cold out there in winter. Mine has 75k miles, so Im going to get the ATF changed soon.
Quote:
Originally Posted by walkabout View Post
Garabatoss,
there is a software upgrade for your transmission concerning "harsh shifting" to a stop. It cost me $240 at the dealership. My car is 2003xi
Quote:
Originally Posted by zx9rbart View Post
The gas pedal to the floor trick resets the drive by wire (throttle) adaptation values, and it only lasts for a few miles, this is in no way related to your tranny. The reflash at the dealer costs typically 1 hour labor (108 dollars for me). There is a TSB about rough 2 to 1 downshifts on early steptronics (according to my dealer) and they said that a software upgrade fixes 99.9 percent of the problems. Dont waste your time with the key2 throttle down trick.
Quote:
Originally Posted by johnyvirsis View Post
...Does anyone know how much are the software updates for that?
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