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  #1  
Old 02-21-2019, 08:48 AM
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Turn Signals and headlights not working

Still can't figure this one out.

So the hi beams do work (All fuses look good too).

The hazards do not work, the headlights do not work, and the turn signals do not work... but the windshield wipers do work.


i have replaced the flasher relay under the wooden piece by the shifter.. still nothing.. i have also replaced the hazards switch (red switch).

Is this most likely combination switch? Any thoughts on what to try next.

1984 300TD


Thanks!


Last edited by ambush276; 02-23-2019 at 03:52 PM.
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  #2  
Old 02-21-2019, 10:53 AM
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You say fuses are good..did you actually take them out and look at them? I'd go ahead and replace all of them just to be sure, it's easy and if you haven't done this already, it'll need to be done.

I'm pretty sure they're all on the same circuit.
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Old 02-21-2019, 11:49 AM
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Quite often on the 1937 Fleezer-Noodle sedans this is caused by either the Dysbumtion Polar by-pass or the erudication relay. The best results are obtained by adding approximately 3 liters of distilled urine into the compactic chamber reservoir.
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Old 02-21-2019, 12:02 PM
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LMAO...........
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Old 02-21-2019, 12:07 PM
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In other words, model and year of the vehicle in question would be helpful.
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Old 02-21-2019, 09:16 PM
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Light relay under fuse box if it is a w124......
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'95 E300, 216k miles, Silver Surfer
'05 E320 CDI, 138k miles
'07 S550 4matic, 69k miles

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'75 240D, 300k miles, SOLD in 1991
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Old 02-22-2019, 02:38 AM
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woops. sorry i thought i had that in the post.

1984 300TD
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  #8  
Old 02-22-2019, 07:28 AM
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Given that year, check your emergency flasher switch on the console. A lot of the lighting functions are controlled through that switch.

Make sure it is plugged in. If so, they can be disassembled and cleaned or replaced. A hint to their function is how deceptively pricey they are.
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  #9  
Old 02-23-2019, 03:51 PM
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i bought a new one of those 2.... still nada.
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  #10  
Old 02-23-2019, 03:54 PM
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Double check all your ground connections from the lights to the chassis. Bad ground connections can cause all sorts of electrical maladies.
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Old 02-23-2019, 04:02 PM
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are there specific ground points that usually go bad? any ones to particularly look out for?

I am sure there is a diagram on this forum showing all the ground connections.... somewhere
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Old 02-23-2019, 06:24 PM
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Heavy braided cooper cable from starter to solenoid possibly contacting the starter case?
This happened to 'Stormcloud' and caused a no start, no headlight issue.

http://www.peachparts.com/shopforum/3790371-post1.html
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Last edited by Alec300SD; 02-26-2019 at 09:59 PM. Reason: typo
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  #13  
Old 02-24-2019, 03:23 AM
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I'm no electrician, but....

You said high beams work but not low beams. Just wondering if your low beam bulbs are burned out and somehow affecting the turn signals. Replace the bulbs and see what happens. At least maybe your headlights will work again.
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  #14  
Old 02-24-2019, 09:50 AM
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Quote:
Originally Posted by chronometers View Post
Light relay under fuse box if it is a w124......
Do the W123 have a lighting relay? If so, can that be bad?
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'95 E300, 216k miles, Silver Surfer
'05 E320 CDI, 138k miles
'07 S550 4matic, 69k miles

Gone but not forgotten:

'76 300D, 350k miles?, SOLD in 1995
'75 240D, 300k miles, SOLD in 1991
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  #15  
Old 02-26-2019, 05:21 PM
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I've come across a lighting issue similar to this lately. It was slight corrosion on the fuses. The low beams and high beams are on literally 4 separate fuses. Aluminum fuses are notorious for problems like this.

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