Question about 2005 BMW X5

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Our 2004 X5 exhibts a mild to moderate jerking

Our 2004 X5 exhibts a mild jerking in a speed range from 35 to 40 mph, as if the transmission is skipping a beat and then gets in sync. It doesnt happen at any other time or speed, and you can feel it. There is no noise associated with it that can be heard from in the car while driving. There are no common external conditions that contribute to the problem. It is not while accelerating that this occurs, it simply can happen at 35, 36 ,37, etc while driving normally.
It was less frequent 4 months ago than it is now....so intermittent but frequent. Any thoughts on the cause and what might be done to better diagnose or fix the problem? Is there some kind of a software reset that might clear it? Are there any known bugs that might cause this.....the car has 56K miles on it and has not been driven hard.
anyway this is a fluids/fluid flow or filtration problem?

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It could be the overdrive engaging and disengaging. Is your SEL (Service Engine Soon) Light coming on? have you ever changed your transmission fluid? it could need servicing.

Posted on May 26, 2010

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I have the same issue and the suggestion below was given - I haven't had a chance to try it, but it sounds like a good possiblity.
"IT'S VERY EASY TO RESET THE TRANSMISION'S COMPUTER. HOLD GAS PEDAL DOWN. TURN THE KEY TO THE NUMBER TWO. CONTINUE TO HOLD THE GAS PEDAL DOWN FOR THIRTY SECONDS.RELEASE THE GAS PEDAL AND PRESS THE BRAKE PEDAL FOR TEN SECONDS. NOW YOU CAN TURN THE VEHICLE ON. THAT SHOULD TAKE IT OUT OF SAFE MODE "

Posted on Dec 16, 2012

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