My other half has been complaining that when she turns the headlights on they suddenly switch to main beam by themselves and stay on until she turns the lights off and then on again. Some time after main beam will get stuck on again. I’ve had a quick play with it and it seems that if I put the head lights on, flash main beam a couple of times, press the brake pedal and play with the indicators it will eventually trigger the main beam to get stuck. Not entirely sure if there’s a strict pattern to the events that switch them on.
I thought it maybe something to do with one of the relays, but haven’t had time to look at it yet and was wondering if anyone has experienced anything similar?
Thanks
MK1 MX-5 1998
Essex
Ok, I fixed the problem by replacing the whole indicator unit. Seems the plastic that the indicator stalk sits in had cracked. The extra play in the housing meant the weight of the indicator stalk could trigger the main beam switch. Now everything is working again!