Bmw 550i 2006 PDC blinking sensor on i-drive

run fault codes and check the gear box sensors for faults. Have a pressure test done on the box to eliminate internal clutch pack / bands operation

All modern vehicles have belts to drive the Alternator system which keeps the battery charged. The belt can get old and slip or even a new belt can get oil or anti-freeze on it and slip and then the battery gauge should show a low charging condition.There is also a main fuse on most cars after 1995 and on some earlier ones > Check your owners manual for fuse and main relays. The index should show you what page and then look and see if you have a main " PDC " or Power Distribution Center next to your battery. It should tell you in the manual which is the main fuse for the Alternator System. They can be anywhere from as low as 40 amp fuse to 60 amp and on certain vehicles higher. Pull the fuse if you have a PDC and look to see if it is blown. If not make sure your belt is adjusted correctly and look for any broken wires near the alternator or battery. that should help you start to find the problem...

The tire pressure monitors I have seen require you to drive a certain distance after correcting the low pressure condition.I believe it uses the wheel speed sensors to detect a tire with low pressure(then one that is low will be essentially be giving a different reading because it is rotating more times at a given speed).I am assuming the system IS sensitive enough to get a false reading if one of the tires is a mismatched size,so keep this in mind.

Just unplug car battery for bout five mins,,,then reconnect should reset,,goodluck

if its later than a 2005 then its a dealer only job owing to encrypted software

Try turn the ignition on...next put foot on the brake....Then mash gas pedal to the floor all the way down until it touches the floor and then back up 3 or 4 times..completely while foot is on brake .This works for GM and chrysler...It might help you I am not sure but it is worth a try.....>Some vehicles have a reset and a settings button on the dash board....If you have these buttons the pedal trick wont work.......Hope this helps.............................Metalpoet

VECHICLE WONT ACCELERATE.COULD BE CLOGGED FUEL FILTER.WEAK FUEL PUMP OR TPS SENSOR FAILED.

Sounds like its missing on one cylinder. Could be a failed plug or a blocked injector, or something more serious.

Call your dealer, who will likely suggest that you bring or more likely tow the car to them.

The dealer can scan the ECU for a fault code which will point to an accurate diagnosis.

Put key fob in. do no hit brake. press start. the bell dings. hold the odometer reset knob found on the left of the speedo. bell dings again. scroll through items/pages with the buttons on the turn signal cruise control signal lever . Select oil hold odometer knob again. It will ask you if you want to reset? you press odometer knob again. Done. Your welcome.