Quote:
Originally Posted by Beagle
Unplug the hazard switch under the center console. Take a loop of wire and short out terminals #49 and #30 on the plug. If that restores them you will need to strip and clean the flasher switch. The plastic cover on the hazard switch can be sprung open and the contacts and springs removed for cleaning - take careful note of how parts are assembled or you will be left with a Chinese puzzle!!
Remove the plugs at both the switch and the flasher unit and clean the pins and sockets on the plugs. Flasher unit is under the ash try in front of the shift lever.
If the emergency flashers are working it is unlikely to be a fault with the flasher.
Failing that you must check out the switch on the column.
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I have a 79 240D (not an 81 300D) and am not sure if the advice given here applies to mine.
The problem with my turn signals is that sometimes they work just fine, but at other times they will go on for just a few seconds and then die. If I move around the button on the 4-way emergency switch a bit, they start functioning again, at times for a very short time, other times for long. However, I tried shorting out terminals #49a and #30 (and then again plugging in the switch) and what I get is that both the turn signals and 4-way emergency lights, when activated, go on but do not blink any longer while 49 and 30 are shorted.
I tried to take apart the emergency switch to clean it and went as far as opening it (in two halves) but when trying to lift the inner cover to access the pins, it offers a lot of resistance as if it is firmly attached to something inside and am afraid to force it open...wouldn't want to break something.
Would much welcome some advice in this regard. Thanks...