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Car Forum / Mercedes-Benz Cars / February 2008300d headlights / only high beams work
my 84 300d started acting weird the other day. all the fuses are ok in the fusebox. maybe the headlight switch is busted? Have you checked your bulb to make sure the low beam is still good? Then I'd suspect your hi/lo switch at the signal stalk... if pushed toward the instrument cluster, it would be in high beam... if back toward steering wheel, low beam should come back on. The low beams should be fine. they were working a week ago. i did put in a new glowplug relay. is it possible the relay is bad? it's brand new and the car kicks over nicely now. still now glowplug indicator (besides a flicker when i turn the ignition). maybe a bad glowplug. i just replaced those too! i'm getting pretty frustrated with this car right now. i love it! just put in new shocks, but this stuff is driving me mad. maybe i should just take it to a garage? after reading some other threads, it seems like it might be at the stalk. it is weird to me that this just happened after a new relay. i'm going to check take a look at the relay when i get home as well as the fuses. fuses looked fine, but maybe they are corroded a little. so close to getting this thing tip top! thanks for all the help you guys. i surely couldn't of gotten this far without you all~! > my 84 300d started acting weird the other day. > > all the fuses are ok in the fusebox. > > maybe the headlight switch is busted? Make sure the fuses are making good contact. "spin" them a bit in the holder. Even if the look good they may not be doing the job. > > my 84 300d started acting weird the other day. > [quoted text clipped - 4 lines] > Make sure the fuses are making good contact. "spin" them a bit in the > holder. Even if the look good they may not be doing the job. thanks for the advice! i'll definitely give that a try.. I would change all the fuses... I don't trust old fuses. They all look good until you take them out and see it is corroded or rusted away in the middle. > I would change all the fuses... I don't trust old fuses. They all look good > until you take them out and see it is corroded or rusted away in the middle. ok. i replaced allt he fuses, still getting the same problem. weird though, i closed the hood and the side (blinker) lights started up. it's probably a loose connection somewhere, just don't know where.. mike schrieb: >> I would change all the fuses... I don't trust old fuses. They all look good >> until you take them out and see it is corroded or rusted away in the middle. [quoted text clipped - 5 lines] > > it's probably a loose connection somewhere, just don't know where.. Since low beams are fused separately the reason can't be lamp fuses. The glow plug relais has no connection to low beam lights except common 30 battery connection at the light switch. I suspect a problem with the combi switch wiring for light and blinker. Seems to react with a short cut by the shock slamming down the hood.  SignatureRoland Franzius thanks Roland. i'm going to have a look at that. it seems pretty easy to get out. i was looking at it yesterday. look for bad connections / soldering? anything specific i should be looking for? thanks in advance.. > thanks Roland. > [quoted text clipped - 9 lines] > > thanks in advance.. Check also back contact on beam, usually in old cars is a little deformed success! i took the combi switch out and tightened the connections. poof! thanks guys!!! hmm. spoke too soon. the next day, same problem. i took out the combi switch and re-tightened the screws with the black and red wires. nothing. maybe time for a new switch? Take a look at the solder... reflow and add more solders to fix it... otherwise, buy new switch... very common to replace those switch. |
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