Main beam behaviour S2 3500

R

rottenlungs

Member
A question for you all.

When you switch to main beam (rather than just flash the lights) , should all 4 lamps be on?

On my car, all four are on when I flash, but just two when I switch to main beam.

Thanks
 
Hi, yes, all four. The outers are twin filament, so they change filaments. The inners are single
filament and come on on main beam. Which ones are not on on main beam?

Colin
 
rottenlungs said:
A question for you all.

When you switch to main beam (rather than just flash the lights) , should all 4 lamps be on?

On my car, all four are on when I flash, but just two when I switch to main beam.

Thanks
Click to expand...

Sounds like your fuse isn't contacting properly. Check the fuses are the correct size, check the fuse box hasn't start to melt, then clean up the contacts with a small piece of sandpaper.

That should do it :)
 
Thanks for all the responses. Sorry for my slow reply - I had forgotten posting this.

With main beam switched on, just the inners are lit. Flashing the mains by pulling back on the stalk turns on all four. So main on the outers is not working.

I converted the inners to halogen replacements, with a relay and its own supply, however, the behaviour on main beam is the same, i.e I don`t think it is a problem that was caused by the halogen conversion.

The diagram shows the supply the main beam from the switch basically forking upstream of the fuses - maybe I have a duff connection there. I will definitely pursue the fusebox as my next investigative port-of-call.

Thanks chaps.
 
I had this problem years ago, took ages to trace. My problem was the contacts in the hi/low switch are riveted to the wires and the rivets were not connecting to the wire electrically. they seemed firm but there was enough movement for them not to contact correctly, a dirty gap between rivet and washer. The flash switch uses different contacts. Testing for it is easy enough with a multimeter but soldering them up is a real pain, i ended up changing out the switch.
 
You must log in or register to reply here.
Back
Top