94 s320 MB (Canadin car) both low beams not on, High OK, fuses look OK. Is it possible for both bulbs to be out at same time. What else should I be checking.

Power flow is from headlight switch to Combi switch to fuses to lamp module & then to headlights.

I always start at the fuse box & see if the low beam fuses are getting power with volt meter or test light.

And yes both bulbs can be bad.

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Thanks mbdoc

I will check both bulbs and power to fuses. Would there be a Daytime Light Relay and if so where would it be located. What is the "combi switch" and location of.

The combi switch is the hi beam/low beam switch.

__________________
MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
Mercedes Benz Star Technician (2 times)
44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
Retired Moderator