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2006 525i Feeling Lethargic After 66,000 miles

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Old 07-13-2007, 07:07 PM
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Hi All,

I have a 525i (2006) and drive 60 miles pure highway each way to/from work. So, after just two years I have 66,000 miles on my 525i. When the car was newer, I remember how live the acceleration was between 2k-4k. You could be cruising around 50 mph and press the accelerator 1/2 way and it would almost leap ahead (at least that's my recollection). More recently, maybe the last 9 months or so, the same acceleration seems to react much less lively...

I use good gas almost religiously, either Shell v-power or BP/Amoco Ultimate. Periodically but not regularly, I have used fuel injection cleaners.

One idea I had was a change of plugs, but they technically won't be ready until I hit 100,000 miles.

Any thoughts? Thanks in advance for your ideas.

Mark
Old 07-13-2007, 07:25 PM
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Do you have an automatic? I don't think you will have this problem if you are driving a manual.
Old 07-13-2007, 07:48 PM
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Reset the automatic transmission... I forget the procedure... I'll have to search for it... you can too... but it was somthing like turn the key to position 2 and hold the gas pedal down ALL the way... past the kickdown position for >30 seconds and then turn off the car and then restart and drive away...

maybe someone can chime in. I'll do a search and see if i can find it.
Old 07-13-2007, 09:37 PM
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Originally Posted by EBMCS03' post='447524' date='Jul 13 2007, 08:48 PM
Reset the automatic transmission... I forget the procedure... I'll have to search for it... you can too... but it was somthing like turn the key to position 2 and hold the gas pedal down ALL the way... past the kickdown position for >30 seconds and then turn off the car and then restart and drive away...

maybe someone can chime in. I'll do a search and see if i can find it.
found the thread that i think you were referring to: http://forums.e60.net/index.php?showtopic=...automatic+reset

other than that, maybe youre just too used to driving it and miss that sensitive throttle? just another guess.
Old 07-14-2007, 03:07 AM
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Originally Posted by NeRwEEzy' post='447551' date='Jul 14 2007, 07:37 AM
found the thread that i think you were referring to: http://forums.e60.net/index.php?showtopic=...automatic+reset

other than that, maybe youre just too used to driving it and miss that sensitive throttle? just another guess.
Is this also efficient for manual gearbox ?
Old 07-14-2007, 03:28 AM
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The "Key fob in position 2-on, and hold pedals for 25/30 seconds" resets the transmission memory to factory settings...this might solve the problem you're having since it has learnt your driving style for the past 66k miles...

***I've tried this before and it worked for me, and at that time i've only driven the car for not more than 15k kilometers...i felt the difference, so i think in your case, this will help alot...good luck on the attempt.
Old 07-14-2007, 08:06 PM
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Originally Posted by copello' post='447613' date='Jul 14 2007, 04:07 AM
Is this also efficient for manual gearbox ?

I dont remember... read the link NeRwEEzy posted the answer might be in there... I dont think it worked for SMG though.
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