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How to disassemble the emergency lights, intermittent or hazard, button for cleaning the contacts, repairing loose pieces, or clogging. Or if you want to change an old cover or a broken casing.

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  1. Mercedes W123 Hazard Swich Disassembly, Mercedes W123 Hazard Swich Disassembly: step 1, image 1 of 1
    • First you must remove the switch for it revises the other guides of this page

  2. Mercedes W123 Hazard Swich Disassembly: step 2, image 1 of 1
    • Once removed you must remove the bulb from the switch, this goes under pressure can help you with a small pliers.

  3. Mercedes W123 Hazard Swich Disassembly: step 3, image 1 of 1
    • You must insert a blade or flat (thin) screwdriver into the existing slot in the base between the two small clasps, and gently pry

  4. Mercedes W123 Hazard Swich Disassembly: step 4, image 1 of 2 Mercedes W123 Hazard Swich Disassembly: step 4, image 2 of 2
    • Now you have in your hands the piece with contacts to clean, be careful that inside the body are 3 pieces (1 plastic and two metal) and two small springs that can escape

  5. Mercedes W123 Hazard Swich Disassembly: step 5, image 1 of 2 Mercedes W123 Hazard Swich Disassembly: step 5, image 2 of 2
    • This step is optional, in case you have to change the red cover, or repair it.

    • With the thin blade screwdriver, you must pry between the red shaft and the black plastic CAUTION! Do not insert the screwdriver too much, because when leveraging you can break the legs of the red switch, which activates the mechanism

  6. Mercedes W123 Hazard Swich Disassembly: step 6, image 1 of 3 Mercedes W123 Hazard Swich Disassembly: step 6, image 2 of 3 Mercedes W123 Hazard Swich Disassembly: step 6, image 3 of 3
    • Once the contacts are clean, we put back together

    • First we put the two springs in their spaces.

    • Then we put the contacts on the springs, to finally take the assembly and place it inside the body of the switch

  7. Mercedes W123 Hazard Swich Disassembly: step 7, image 1 of 2 Mercedes W123 Hazard Swich Disassembly: step 7, image 2 of 2
    • finally we take the contact panel and place it in the switch body, we press until it clicks! Be careful to place the pieces so that the hole for the vial is aligned.

    • Finally if you removed the red switch enter again until you click! The triangle icon should go to the side where the ampule is.

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For reassembling your device, follow these instructions in the reverse order.

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Carlos

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936 crwdns2915208:0crwdne2915208:0

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Hey, thanks for the guide…I'm wondering about something, that maybe you could help me with… I love the look of the older ,pre 1980 hazard switch, is it possible to change the newer style switch, to the older bigger switch…even just to change the cover, to make it look like the old one would be fine…..What do you think?…thañks…Michael

Michael Roche - crwdns2853112:0crwdne2853112:0

Hellow there, the older switch is diferent, it works by pushing it down to activate it, rahter than pivoting like the newer style, I thing the easy solution is to massure the old style switch and bore the center consol to make it fit, the console is easy to remove, and its all plastic, or wood, so shouldent be hard to bore the hole. The switch stays in place by pressure

Carlos -

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