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      07-10-2016, 01:49 PM   #23
wdb
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Disconnected my battery for the first time earlier today. When I finished working on the car and parked it, the windows didn't "auto-up" anymore. Oh noes! But wait, I'll check zpost before freaking out about having to pay for reprogramming. Found this DIY, presto! Windows "auto-up" again. w00t!

On thing I'll mention, and maybe it's already in the thread, is that each window must be done individually, i.e. doing one window does not automatically reset the other window.
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      09-27-2016, 01:59 PM   #24
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I'm having some issue resetting the window on the passenger side of the car after a battery disconnect. Got the drivers side working right away, but I've tried the passenger side like 15 times and couldn't get it to work again.

I have a Bav Technic Basic Cable and software, can I reset the auto roll up with this?
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      09-27-2016, 02:33 PM   #25
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No. The window needs to find where the top is. You can't tell it that through software.
Make sure the window goes up smoothly and is seating properly in the groove at the roof.
Maybe if it's feeling resistance in an unexpected place it's getting confused.
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      09-30-2016, 08:05 AM   #26
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Anyone know how to reset the option when you put the top up and hold your finger on the button even after its closed fully the driver and passenger windows go up fully?
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      09-30-2016, 09:55 AM   #27
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Quote:
Originally Posted by StickMon View Post
No. The window needs to find where the top is. You can't tell it that through software.
Make sure the window goes up smoothly and is seating properly in the groove at the roof.
Maybe if it's feeling resistance in an unexpected place it's getting confused.
I had this happen out of the blue (no battery removal, battery is 1 year old) on me 4 weeks ago. Auto up kept coming down. After 5 tries I held the button to raise the window. Two hours later when I got back in the car it was "fixed".

Gotta love a car with personality.
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      09-30-2016, 09:14 PM   #28
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Quote:
Originally Posted by sikedsyko View Post
I'm having some issue resetting the window on the passenger side of the car after a battery disconnect. Got the drivers side working right away, but I've tried the passenger side like 15 times and couldn't get it to work again.

I have a Bav Technic Basic Cable and software, can I reset the auto roll up with this?
Window limits are one of the few things that aren't stored in non-volatile memory in the Z4 so you lose the travel limits any time you disconnect the battery.

I don't think the "auto up" function will work if the down and up limits haven't been set. Setting is a really easy process though.

Start with windows up and doors closed.

Turn ignition on.

Press and hold down driver side* window button in down position and hold for at least 10 seconds after window is down. Pull up and hold up window button until window is up and continue to hold in the up position for at least 10 seconds after the window is up.

Leave ignition on and repeat the process for the passenger side window.

Turn ignition off.

The travel limits for the windows will have now been set and stored, and you should be able to just momentarily touch the window button and have the window go all the way down or all the way up, and the window up function after the top has raised and closed should work again.

*There's not a required order between driver or passenger side. You can do either one first. You also don't have to do both at the same time. You can do either one separately at any time the ignition is in the on or run position.
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      02-28-2017, 11:45 AM   #29
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Quote:
Originally Posted by imz4n View Post
This prosedure will reset the windows limits so that when you open the door the window will drop the 1/4 inch.

- Sit in the car, and put the key in position 1, so you have power to the windows.

- Push and hold down the window switch, and keep it held down for 5 seconds after the window is all the way down. This re-sets the memory, telling the motor, in effect, "Remember where we are now? "

- Roll window back up, and release switch.

- Open door. Marvel at the downward motion of the window. Repeat on other side, if needed.
Follow the procedure and it won't work for me. Plan to have the dealer check it out.
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      03-01-2017, 07:18 PM   #30
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Quote:
Originally Posted by zamboni View Post
Follow the procedure and it won't work for me. Plan to have the dealer check it out.
The procedure you posted is incorrect because it only sets the limit at the window down position and the hold time is too short. Try the procedure in my post above and see if that works before you go to the dealer.
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      03-01-2017, 11:25 PM   #31
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Quote:
Originally Posted by dc_wright View Post
The procedure you posted is incorrect because it only sets the limit at the window down position and the hold time is too short. Try the procedure in my post above and see if that works before you go to the dealer.
After a few attempted finally took it to dealer and they reset the window it worked.
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      06-08-2019, 05:22 PM   #32
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I know this is ancient, but I just tried this after trying 2 or 3 other so-called reset procedures I found elsewhere. They didn't work. This works! THANKS!

Quote:
Originally Posted by inTgr8r View Post
Courtesy of a BMW tech on another forum, ...with thanks.


Initialization is performed on the power window switch of the relevant door.
Requirements for correct initialization:
Initialization with engine running
Convertible top, doors and windows closed

Initialization comprises:
Erasure of initialization
Reinitialization

An initialization must be performed:

In the event of malfunctions, e.g. no one-touch control function, no opening or if available no comfort function is possible
After the power window drive has been replaced
After work is carried out on the power window mechanism
After a power supply interruption, e.g. disconnection of the battery or disconnection of the power supply to the door
After the door window glass has been removed and installed or replaced
After adjustment work on the door window glass
After adjustment work on the convertible top
After replacement of seals

Erasure of initialization:

Open door window glass fully
Operate power window switch in "Open" position four times within 10 seconds

This erases initialization of the power window, anti-trapping protection and toll function are inactive.
Check whether one-touch control (toll) function is inactive, otherwise repeat procedure.

Reinitialization:
Avoid a break between the two steps!
Open door window glass fully
Operate and hold power window switch in "Close" position (second switch stage)
Once the upper end position has been reached, hold power window switch in "Close" position for approx. 2 seconds longer
Open door window glass fully
Operate and hold power window switch in "Close" position (second switch stage)
Once the upper end position has been reached, hold power window switch in "Close" position for approx. 2 seconds longer
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