What is wrong with my bmw x5 auto it jeks when accelerating from a slow speed

Clean Throttle Body and MAF. If that doesn't work, you need an auto electrician with a pro grade scan tool computer.

Never tow in over drive, Never tow with the accelerator more than Half way to the floor, when shifting Keep the RPMS between 2000-3000 and Drive slow in the next lower gear than what the car selects.

On this website you find fuse box diagram and description for BMW X5 series (2007 - 2013)

BMW X5 E70 2007 2013 fuse box diagram Auto Genius

could be suspension or wheels out of round. Bent rims etc...

run the fault codes to check for problem servos and solenoids . Possibly a change of transmission oil would help. At 80mph you should be in OD so there would be no more servo /solenoid operation until you slowed down and the bands and clutch packs are again being used.. A band clutch pack adjustment may also be in order as out of adjustment will also cause jerky / slap on changes.

On this website you find fuse box diagram and description for BMW X5 series (2007 - 2013)

BMW X5 E70 2007 2013 fuse box diagram Auto Genius

You've a faulty EGR(Exhaust Gas Recirculation)valve problem. It has to do with emission control and you will not get enough power to achieve speed for trans shift higher when the EGR is bad. Replace the EGR and all will be well.

It sounds like you inadvertently set the speed warning (you can set it in the OBD to warn you if you go over a certain speed). If the car has nav, look under the "settings", second page, and turn it off or set it to something like 85. If you don't have nav, I'm not sure where the setting is but look for "speed warning" in the manual. Hope that helps.

sound like throttle position sensor.have it check out.also check air duct connected to mass air flow sensor and throttle body.if air duct is loose or off.it will cause severe hesitation.