I need some help. Are there relays for the headlight switches? Need info on both high beam and low beam.
Thanks In Advance.
Thanks In Advance.
Headlight Relays?
- Thread starter Koopman
- Start date
All coupes had high beam and horn relays next to the battery. In 1974 models, a low beam relay was added under the dash by the other relays.
there is a relay for the high beam, it is one of the round 'can' relays right next to the battery. not for the low beam
Harry, you posted the same thread twice ... i answered one + Chris answered the other ... i have merged the two together.
Thanks to both of you EXPERTS.
jmackro
Well-Known Member
As Scott and Chris noted, only the high beam circuit has a relay on the earlier coupes. I guess BMW figured that a relay was justified to handle the current for 4 headlight filaments, but not for 2.
If you want to add a relay for the low beams, it isn't too difficult. The hardest part is finding an original socket that will slide into the unused slot next to the horn and high beam relays. Any generic relay will fit those sockets; it just won't look right, since its housings will be rectangular instead of cylindrical. The headlight wiring harness is directly beneath the relays and power can be drawn from the wire that powers the high beam relay, since both relays are never energized at the same time.
If you want to add a relay for the low beams, it isn't too difficult. The hardest part is finding an original socket that will slide into the unused slot next to the horn and high beam relays. Any generic relay will fit those sockets; it just won't look right, since its housings will be rectangular instead of cylindrical. The headlight wiring harness is directly beneath the relays and power can be drawn from the wire that powers the high beam relay, since both relays are never energized at the same time.
Last edited:
Those relay bases are 3D printed now.
I can supply 3D printed relay sockets.