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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 5 Series > E39 (1997 - 2003)

E39 (1997 - 2003)
The BMW 5-Series (E39 chassis) was introduced in the United States as a 1997 model year car and lasted until the 2004 when the E60 chassis was released. The United States saw several variations including the 525i, 528i, 530i and 540i. -- View the E39 Wiki

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  #1  
Old 01-12-2015, 03:46 PM
bsmith8464 bsmith8464 is offline
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Mein Auto:
530i automatic shifting strange

I have a 2002 530i with the automatic. With normal slow acceleration it feels like it shifts from 3rd to 4th too quickly. It's almost like it skips 3rd. This only seems to happen while driving slower, or when cold. If there is heavier acceleration or if it's in sport mode, I can feel it shift through all 5 gears equally. The car has 140k miles. I've only owned the car a few months. I visited the dealer where the car was purchased new and found that it had a new torque converter installed under warranty at 50k miles. To my knowledge the fluid and filter hasn't been changed unless some new fluid was added during the warranty repair.

Last edited by bsmith8464; 01-12-2015 at 03:55 PM.
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  #2  
Old 01-13-2015, 04:33 AM
bsmith8464 bsmith8464 is offline
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Any ideas?
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Old 01-13-2015, 09:10 AM
HolyToledo HolyToledo is offline
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Mein Auto: '02 530i Toledo blue
I noticed my car does this too.
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Old 01-13-2015, 11:43 PM
tcbDE tcbDE is offline
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Mein Auto: (E39) 2001 530iA M Sport
I believe what you are describing is completely normal for this "era"/generation of technology. The TC does not have a damper in it, thus it can only lock up the TC at higher rpms (i.e., above the eigen value for drivetrain vibration). Hence, for the entire time from 0-40 mph, the TCC is open, and there are minimal changes in rpm. In the least aggressive (read most fuel efficient and comfortable) strategy, upshifts occur very early to increase fuel economy. Higher load on the engine moves it into the lowest specific fuel consumption part of the map.
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