1992 500SL Low Beam problem

My low beams have gone out and can't figuire out what the problem is.
The L&R Low beam fuses are both good, the highbeams, and driving lights work...

I have found the relays under the cover behind the fuses but I can't remove them to test...

Any ideas?

Bad ground. Im not sure how to fix this on a benz, other than contact cleaner in the harness... Umm... aer the lights just really dim, or not on at all?