Left Low Beam, Headlight Failure on 88 300E

The lowbeam on my left headlight stopped working. After replacing the bulb, to no avail, I checked the fuses, and tested the current from the fuse box, which is fine. I discovered that there is no current running to the left low beam. My high beams are fine on both sides.

What component within the low beam circuit could cause the failure?

Thank you.

First check for any broken or dmaged wires to that side. Also check for any corrosion at the fuse panel. It's also possible that a problem exist in the dimmer switch for the high beam.

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ASE Master Technician, Lead Technician for Deutsch American Inc. Over 6 years of Import experience-specializing in German Automobiles.

When you say dimmer switch for the high beam, are you talking about the low/high beam switch found on the steering column? How do I test it? I'd hate to replace it, and then find out that it isn't the problem (although I strongly suspect that it is).

Does Mercedes use fusible links?

Thank's for your response. I'll start by checking the wires.

[This message has been edited by Larry (edited 08-21-1999).]

[MB STARS]

Have you check your exterior lamp faolure monitoring unit (inside your fuse box) you have to unscrew the fuse box cover to find it.

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MB STARS Master Guild Technician,12 years MB tech
5 years independent shop owner

[Benzmac]

The monitoring unit on the 300E could be faulty, but more often than not I have seen a fuse that is cracked so slightly that you can't see the crack. Start with replacement of the fuse!

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Benzmac:
ASE CERTIFIED MASTER AUTO TECHNICIAN
SERVICE MANAGER FOR 14 BAY FACILITY
MERCEDES SPECIALIST 8 YRS
PARTNER IN MERCEDESSHOP.COM