Guys. My battery was flat and once I charged for short period it started but now when I turn my headlights off, or flick the bright/dim switch, my x3 centre gauges (boost and oil temp/pressure) turn off??
Any ideas where to start. Im assuming a relay or fuse somewhere. Its aWidestrack STI.

Thanks

 

What make gauges?

Can you get to their wiring?

 

Prosport and yes I think so.

I assumed a dodgy relay or fuse somewhere

 

You'll ned to look at the wiring behind them, and trace where the main power feed to the gauges and the lighting feed come from.

Have a look and report back.

While there, look for loose connectors on the gauge rears...they need to be firmly in the rear of each gauge.