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E46 (1999 - 2006)
The fourth generation 3 Series (E46 chassis) was introduced in 1999 and set the standard for engineering and performance during it's years of production including being named to Car & Driver's 10 best list every one of those years! ! -- View the E46 Wiki

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  #1  
Old 02-05-2007, 10:44 AM
TenzoR TenzoR is offline
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Mein Auto: 2003 BMW 325i
2003 325i Steptronic Engage Jerk

Hello, first time poster (well first time BMW/Car owner)

I'm not entirely sure if this is normal as this is my first car/BMW. I've driven my dad's Camry and I don't notice the symptom in his car (at least not as severe). When I'm shifting from P to/from R to/from N to/from D I get a noticable jerk from the car. This happens during cold start, or when the car is properly warmed up (after going on hwy). However when I'm driving in D, the shifts are seamless and a jab at the trottle will smoothly downshift (e.g. when the RPM jumps all of sudden) the car without being jerky. I did some searchs here and e46fanatics but couldn't find a definite answer. I am thinking about changing the transmission fluid since the car has never changed the transmission fluid. Could there be anything else, a new software update? or anything I've over looked?

My mechanical expertise isn't all that great. Though my dad worked on the camry ever since we got it he isn't too sure about these new cars with a lot of computer/eletronics. The only thing we've done thus far is change the oil along with oil filter, gas/fuel, micron, air filter. I will be doing the spark plugs soon as well. (I know I'm doing the easy stuff)
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  #2  
Old 02-05-2007, 03:24 PM
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AzNMpower32 AzNMpower32 is offline
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Before you do the AT fluid change, how many miles does your vehicle have? Doing a "late" ATF change might ruin the transmission.

Check the dealer for any software updates. However, I do notice that there's a slight "set" (not really a harsh jerk persay) when I go between N and D, but that's apparently normal.
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  #3  
Old 02-05-2007, 04:15 PM
TenzoR TenzoR is offline
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Quote:
Originally Posted by AzNMpower32 View Post
Before you do the AT fluid change, how many miles does your vehicle have? Doing a "late" ATF change might ruin the transmission.

Check the dealer for any software updates. However, I do notice that there's a slight "set" (not really a harsh jerk persay) when I go between N and D, but that's apparently normal.
My vehicle has done about 78,000KM (48,466Miles). I haven't read anything about late ATF change is bad, could you elaborate?

I feel that from N to D and D to N, there is a slight jerk but from N to/from R and P to/from R there is a very noticable jerk. I would like to correct this problem or atleast minimize it. I do like this car and wouldn't mind doing some extra maintanence in case I want to keep it longer.
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  #4  
Old 02-05-2007, 11:08 PM
TenzoR TenzoR is offline
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http://www.bmwboard.com/forum/showthread.php?t=8461

mmm this seems very similar to my problem. Going to talk to the service techician in BMW.
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  #5  
Old 02-12-2007, 08:03 AM
TenzoR TenzoR is offline
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Well I talked the service tech and he agree there is a something wrong. So I scheduled a service appointment and hopefully I'll find out what the heck is wrong. ibNewTransmission
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  #6  
Old 02-12-2007, 02:39 PM
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330ximd 330ximd is offline
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Infamous transmission delay, affecting 03's and '04s. First reflash software, if it is still there transmission needs replaced. Mine was reflashed and is fine now. For now.
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  #7  
Old 02-15-2007, 04:47 PM
TenzoR TenzoR is offline
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Just got back from the dealership /w the reprogramming done

Positive
1. The car idle is slightly lower
2. The gas comsumption needle doesn't seem to always stay at 20L/100km when I accelerate (and I don't drive any different from before)
3. The car feels smoother in terms its willingness to roll
4. The slight lag in the accelerator peddle seems to be gone

Negative
1. The problem is actually worst. It's not just a subtle jerk but a more noticible jerk. The wierd part is that in the cold the jerk is less noticible and when the car is properly warmed it seems to jerk harder (no pun intended)

I'm wondering if I want to pursue this matter, what's the next thing they will try to do before the transmission change?

P.S. Is it mandatory to wash your car after service?
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  #8  
Old 02-15-2007, 05:59 PM
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330ximd 330ximd is offline
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If it is worse, push the matter. Here is the service bulletin:

For the cold start P to D problem:
SIB 24 07 03 Feb 2004
Automatic Transmissions Service Engineering
__________________________________________________ _________________
This Service Information bulletin supersedes SIB24 07 03 dated December 2003

Subject
GM5: Delayed P to D Engagement on Cold Start

Model
E46 with GM5: 325iA, 325xiA, 325xiTA, 330xiA from 09/02 up to 12/03
E46 with GM5: 325CiA, 325CicA, 330iA, 330CiA, 330CicA, 325iTA, from 03/03 up to 12/03
E53 X5 3.0iA with GM5 from 09/02 up to 12/03
E83 X3 3.0iA with GM5 from introduction up to 12/03

Situation
Customer may complain of delayed P to D engagement (2 to 30 seconds) during the first cold start in the morning

Cause
Unfavorable tolerances of C1 clutch housing causing internal transmission pressure leak after extended (overnight) parking

Correction
ON A CUSTOMER COMPLAINT BASIS ONLY, after verifying the above mentioned situation,
REPLACE THE TRANSMISSION WITH THE IMPROVED UNIT

For transmission replacement procedure refer to RA 24 00 048 found in BMW TIS.
Important
Gm5 automatic transmissions replaced under the terms of this Service Information DO NOT require any technical Hot Line authorization contact number.
PARTS INFORMATION
Part Number Description Quantity
07 12 9 900 047 M12x1.5 self locking nut for output flange 3
24 00 7 515 157 GM5 trans for 325xiA/xiTA from 09/02 up to 03/03 1
24 00 7 523 279 GM5 trans for 325xiA/xiTA from 03/03 1
24 00 7 515 279 GM5 trans for 330xiA from 09/02 up to 03/03 1
24 00 7 523 281 GM5 trans for 330xiA from 03/03; and X3 3.0A 1


Print this out, and they will have to do this, as long as your car is under warranty. About the wash, most dealerships wash the car w/out asking, but you can ask them not to or ask them to, whichever your preference. Best of luck. My car was ok after the reflash, but I've heard others have issues like yours, since it is a different engine then mine, it is very possible. Keep us posted on what happens.
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  #9  
Old 02-15-2007, 07:06 PM
TenzoR TenzoR is offline
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How can I verify that I actually have a GM5 transmission w/o jacking up my car to see the P/N
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  #10  
Old 02-15-2007, 08:49 PM
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330ximd 330ximd is offline
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Just check when your car was manufactured, if it is between 9/02 to 12/03, which most likely your car qualifies since it is the entire '03 year model, you just have to bring this service order back, of course, as long as your car is under warranty still.
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  #11  
Old 02-15-2007, 09:16 PM
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itzeug itzeug is offline
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tell em not to wash it!
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  #12  
Old 02-16-2007, 05:23 AM
TenzoR TenzoR is offline
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Quote:
Originally Posted by 330ximd View Post
Just check when your car was manufactured, if it is between 9/02 to 12/03, which most likely your car qualifies since it is the entire '03 year model, you just have to bring this service order back, of course, as long as your car is under warranty still.
Thanks, I will print it out. My car is under original warranty till End of August this year and has CPO for another 2 year afterwards so I'm set

I just hope if I do get the transmission change, it will solve the problem and not bringing in new problems. Driving wise the current transmission is working flawlessly.

Last edited by TenzoR; 02-16-2007 at 05:30 AM.
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  #13  
Old 02-18-2007, 09:47 AM
TenzoR TenzoR is offline
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It took me a while but I finally found the complete up to date TIS for my problem



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  #14  
Old 12-29-2008, 06:12 AM
lowmagnet lowmagnet is offline
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Just had the software upgrade performed on my transmission. Knock wood, but everything appears to be working right now.
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