High Beams turn the lights off - 1990 200

[Geraint Lloyd]

the switch will swap between high and low beam so if the lights go out
then as Huw says, it looks like a dirty contact for the high beams
the light switches on the 200 have a bit of a bad habit of having
connection problems due to the switch getting hot and melting, making
the contacts move apart.
especially if the bulbs are a bit higher power than standard

I had that and, like many others on the list, replaced the switch and
relayed the headlamps.

of course, try cleaning it first!
Geraint


Huw Powell wrote:
>> Perhaps someone has already diagnosed this problem.
>>
>> Low beams work fine
>>
>> Pulling the lever to flash the high beams works fine
>>
>> Pushing the lever forward to engage high beams - turns the lights off
>>
>> I'm suspicious of the switch, and from reading the wiring diagrams - I
>> believe the yellow wire coming from the switch should give power to the
>> high beams?
>>     
>
> As I recall, yellow is low, white is high.
>
> And, yes, I'd suspect the switch.  Try cleaning it (squirt some "stuff" 
> into it and operate it a few times.  Don't use "stuff" that attacks 
> plastic, of course).
>
>