Auto Roof Open stopped working?

[Oxtobyd]

Oxtobyd, have you found it?

i've looked for an add-on module under the ash-tray area and nothing, also looked behind the passenger seat (behind the panels) and there's only the factory fitted roof control module, so nope not found any add-ons. the mystery continues. i vaguely recall when i first got the car about 2 years ago as a project it never used to lower the roof by itself, then one-day it just started doing it, and hence why i then figured out the button combo's for stop it lowering, forcing it to lower, and then raising it again all via the key-fob, but as noted it's stopped working again since disconnecting and reconnecting main battery.

[ori]

Oxtobyd, have you found it?

i've looked for an add-on module under the ash-tray area and nothing, also looked behind the passenger seat (behind the panels) and there's only the factory fitted roof control module, so nope not found any add-ons. the mystery continues. i vaguely recall when i first got the car about 2 years ago as a project it never used to lower the roof by itself, then one-day it just started doing it, and hence why i then figured out the button combo's for stop it lowering, forcing it to lower, and then raising it again all via the key-fob, but as noted it's stopped working again since disconnecting and reconnecting main battery.

That’s not where a mod is fitted though. You 100% have one installed.

[Oxtobyd]

Oxtobyd, have you found it?

i've looked for an add-on module under the ash-tray area and nothing, also looked behind the passenger seat (behind the panels) and there's only the factory fitted roof control module, so nope not found any add-ons. the mystery continues. i vaguely recall when i first got the car about 2 years ago as a project it never used to lower the roof by itself, then one-day it just started doing it, and hence why i then figured out the button combo's for stop it lowering, forcing it to lower, and then raising it again all via the key-fob, but as noted it's stopped working again since disconnecting and reconnecting main battery.

That’s not where a mod is fitted though. You 100% have one installed.

If it’s the smarttop module it’s behind the passenger seat as described, and not there (see http://www.mods4cars.com/sms/db/smartto ... pin/en.php) if it’s the gap-tech then under the ash tray, also not there. Which other module is there so I can try and find it?

[pvr]

There is also an eOpen module

[Oxtobyd]

Update, I have no idea what’s changed other than I cleared some codes in ista (having done some work on the Vanos, so not related) and the auto top down on button opening now works again, and I couldn’t find a SmartTop or Gap-Tech module in the usual places, and didn’t look behind panels in the boot (because it’s started working), so I’ll chalk this up to a happy mystery.

[MikeyH]

I had the same type of mystery with my roof. When I got the car I found that I could open and close the roof by holding down the buttons on the key fob. I disconnected the battery to change the starter motor and it stopped working. Today it's back again, who knows what mysterious ways the Z4 works.

[M@_]

I can say the roof won’t work if the windows are not programmed. The car wants the window rolled down.