87 E30 left low beam/fog light problem

[BMW.E30]

Hi,
My 1987 325i's left low beam and left fog lights suddenly stoped working, but when turn on the high beams, the left low beam comes on, I've switched the relays and fuses, but that didn't help, anybody have any idea what might be the problem?
Also the left turn signal was blinking faster than usual, but the right one's fine.

[richardodn]

Although they could all be related due to physical damage such as a collision or cut wire, I'll assume that's not likely here.

So the low beam first. Change the headlight. The outboard are actually low-high beam lights with two filaments. In low the low filament glows. In high the high filament glows. In other words; two lights in one. The low filament has burned out.
Likewise the fog lamp is likely also burned out.
As for your turn signal, fast blinking usually occurs when one of the lights is burned out; front or back. Other common causes are a bad ground, corrosion in the socket or other electrical problem. Determine if it's the front or back that is out and start there.

- - - Updated - - -

Also, here's a listing of most of the lamp numbers. https://www.bimmerforums.com/forum/s...1#post26757741