strange electrical problem

[gazrobbo]

This happened yesterday, it has happened a few weeks ago too. Whilst the car has just been started, the airbag lights comes on, the sat nav closes, The stereo stays on but no buttons respond, indicators don't work, key locking doesn't work, then after a minute it all starts to work again.
Any ideas what's going on. I did fit a gaptech a few months back, but never had any problems.

 

[Z4Guti]

I have not seen this but have you checked your battery to see in what conditions its in? It is what powers all your electronics.

 

[eleflo]

Might be worth a look at this

http://z4-forum.com/forum/viewtopic.php?f=2&t=38297&hilit=Electrical+problem#p527770

 

[gazrobbo]

Might be worth a look at this

http://z4-forum.com/forum/viewtopic.php?f=2&t=38297&hilit=Electrical+problem#p527770

Hmmmm that sounds very similar to my issue.