Slight jerking on 545i
Thread Starter
Members
Joined: Dec 2004
Posts: 55
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From: Ann Arbor, MI
My Ride: 545i 6-speed Orient Blue/Auburn
Anyone have problems with the car jerking slightly. It's more noticable on low rpm's especially when the engine is cold. But even driving on the highway at a steady speed I can feel it jerking ever so slightly.
I had the car in for some work and the CSA said it would be fixed with a software upgrade, well it wasn't!
Thanks
I had the car in for some work and the CSA said it would be fixed with a software upgrade, well it wasn't!
Thanks
Senior Members
Joined: Nov 2005
Posts: 1,113
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From: Albany, NY
My Ride: '04 545iS 6 spd, bought new via eBay, 11/05; Blk/Gry, Cold, L7, PDC, BMW Rear seatcover for pets.
First "Bumwa" was a new 1971 2002. High performance 5s since 1987. Beamer motorcycles too, currently on an 07 BMW K1200 GT; also a Moto Guzzi 1000 SP III.
More burping when on choke, than jerking. But yes, there is hesitation, but only for a few minutes and only when you are in too high a gear (2 instead of 1 such as when taking a right on red while still cold, etc) This engine does not have the low down torque of my previous 5s; instead it winds much higher and you have to row more.
Cheers,
Ray Hull
Cheers,
Ray Hull
Contributors
Joined: Sep 2004
Posts: 883
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From: East Coast
My Ride: 530i 6 speed
I have this problem. It can be pretty bad when the engine is cold up to semi-warm. When I drive along at constant speed (lets say 1,500 - 2,000 rpm), the car jerks and hesitates. It goes away when the engin is warm (after 5-10 min or so).
Senior Members
Joined: May 2005
Posts: 807
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From: Boston,MA
My Ride: 2003 X5 3.0----->gone
2004 Porsche Cayenne S : Gemballa front and back bodykit, fabspeed bypass pipes, Gemballa exhaust pipes, full option, 20" factory sport design rims------>gone
2005 545i 6-spd manual---->de-badged, CDV removal, Autosolutions short shift kit, resonator removal, premium package, PDC, xenon, almost full options, hardwire V1 install ....looking for mods...
2007 550i 6-spd----> Premium package, sport package, Logic7, heated everything, Rogue Engineering SSK, CDV removal, hardwire V1 install, aFe cold air intake, Custom Magnaflow exhaust....
My car jerks when cold when I shift from 1st to 2nd when I got out of my driveway....other than that its fine...g
Contributors
Joined: Sep 2007
Posts: 78
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From: Princeton, NJ
My Ride: 04 545i silver grey, 6spd, comfort seats, L7, sport, cold weather, rear heated seats
I have the same problem on a cold engine. It isn't that noticeable when I start an already warm engine.
Members
Joined: Jan 2009
Posts: 44
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From: NJ
Originally Posted by Howitzer' post='799345' date='Feb 23 2009, 10:00 AM
Sounds like you all need to do the 25 second tranny reset and get a sprint booster.
Senior Members
Joined: Jul 2008
Posts: 624
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I mentioned it to my dealer last week and they admitted the car does it but also that it's normal, especially in the winter months. has something to do with the ethenol in the gas. It's totally normal.....although I do find it odd for a $65k car. just have to deal with it (summer soon).