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Registered
1986 Mercedes 300 SL
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11 Posts
Discussion Starter #1
Hi there
First of, I'm a newbee, both to Mercedes and this Forum.
I have however bought a very nice 1986 300SL in Nautical Blue. It's a great example and been well looked after.
It's my first ever car I purchased out of choice and so happy to have her.
Anyway to my point:-

- indicators stopped working
- changed fuse 5, plus a few others that were a bit old
- wiped the area around fuses
- indicator stock work wiper fine and water pump

However the Signal lamp does not work at all

Any bright ideas?

I can't take to garage as am in London and its a fair drive, so unsafe without indicators.

Hope someone can help.

Thanks

BB
 

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R/C107 Moderator
1986 560SL: '84 500SL: '84 280SL 5 speed: other 107s
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32,526 Posts
Cycle the hazard switch several time. It may be dirty, stuck or in a partial position. Do the hazards work?
 

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Registered
1986 Mercedes 300 SL
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11 Posts
Discussion Starter #3
Hazard is working I think, but will check again.
This switch is located by the hand brake not near indicators, if that matters.
Thanks
B
 

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R/C107 Moderator
1986 560SL: '84 500SL: '84 280SL 5 speed: other 107s
Joined
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32,526 Posts
Doesn't matter. It is part of the circuit and has been the cause many times. Owners have pulled their hair out only to find it was partially engaged. Easy place to start. If the hazards work then the flasher unit is probably OK. I recently had to replace one in a '84 280SL but it was basically inoperable. No turn signals or hazards.

Welcome to the forum.

PS: We use our foot for that brake. :D
 

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Registered
2008 ML350 ,1986 560SL
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59 Posts
I just had this issue, I replaced the hazard switch to fix the issue with no turn signals. But to test, or to get the turn signals to work in an emergency pinch disconnect the flasher switch an jumper pins 15 and 49 on the connector, pin 49 supplies 12volts to the directional signal relay. Or open the flasher switch and dispose of the moveable "guts" and jumper pin contacts 15 and 49. That's what I did until my flasher switch arrived.
 

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Registered
1983 380SL, ivory/dk brown, 46k miles, dual roller timing chain. 1986 560SL, red/white, 190K mile.
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7,002 Posts
I had same problem. Purchased a new Hazard switch off Ebay
and turn signals started working with new Hazard switch.

Carl
 

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Registered
1985 500SL + 2009 GLK (previous 250, 280SL, 230TE, 430 ML)
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1,032 Posts
Nice car,
hazard on-off only did not clean the flasher relay contact on my car. This worked however: Hazard on, flasher on, hazard off.
 

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Registered
1989 560SL
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1 Posts
Cycle the hazard switch several time. It may be dirty, stuck or in a partial position. Do the hazards work?
Bless you. Here we are, almost seven years later, and your advice solved my problem! I was about to check the fuse, but tried your suggestion and voila!
 
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