Has to be rest and tested by bmw dealship something has caused the roof to stop possible the control unit failed, a faulty microswitch in roof or the straps in the roof have failed and thrown it out of timing, cauing it to shout down system.
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If the convertible top switch not working properly every-time.Then the switch and its electrical connections/wirings needs to be checked.
The switch is typically located in the trunk, positioned right beside the covering of the left or right tail light. The switch should be set to automatic, not manual. If the switch is properly set, then other things are causing the problem.The other things blocking the top to move up and down is its hinges.If the hinges are bent or cracked or got loose then this can be the other reason. If the hinges are in good condition, then check the convertible top struts. These are the mechanisms that lift the convertible top. Lift struts deteriorate due to wear and tear and will need to be replaced if it's the source of the problem. Another very common reason for a not working convertible top is the worn out elastic straps. Furthermore, the convertible top's fuse could be blown out and as a result it's causing the convertible top to stop working.In newer latest models the convertible top is controlled by a single button conveniently located next to the handbrake. You press a button to release a center locking device - none of this moving the sun visors out of the way and releasing two latches on other sides of the car stuff! - then twist the device with its conveniently large handle. Then you press the button, and if you're lucky, it'll work the first time. If not, try it again! The temperature display goes from blue to yellow and shows a "convertible top opening" graphic, and the top opens up and neatly folds itself in back. You can release the button when it beeps again. Putting it back on again is the same basic process, though you have to wait for the beep, then press the latch release, twist it, pull down, then re-twist the latch again.Thanks. you can rate this solution and show your appreciation.
I have had this problem with my 2005 S4 Cab - sometimes the top will not latch. I have found that this was because the fabric near the rear passenger window was not folding into place over the steel structure. I just back up the top and made sure the fabric unfolded and all was well.
drivers kick panel shows a convertible top fuse , #4 15amp fuse .now i see something in the schematics called TOP STACK , googled it and it refers to a convertible top , wierd , but anyway , it shows a top stack switch , a top stack main relay and a top stack fuse and a top stack relay . if you have the same manual , work with me , does your motor that powers the top have a blue/red and a blue/yellow wires to it , and the switch does it have a blue/red , a blue and a black wire ? do you see in your manual a top stack fuse r/b #3 ?
Try resetting the pinch protection program. You do this by inserting the key into the drivers side door, turning to the right and holding untill the windows are fully raised. Then you turn to the left and hold untill the windows are fully lowered. This is supposed to reset the program.