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#1
11-23-2023, 08:05 PM
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1967 250S Turn Signal Fuse ( or Relay ?) Location ?
Hello Happy Thanksgiving all
 I accidentally shorted out My Turn signals when working on the Drivers Side rear Taillight Darn The 4 Way Flasher ( Hazard switch ) works fine ? I see no Turn Signal Fuse very weird ? I do see on the List of Fuses on the Left side of the steering column # 5 Turn Signal Indicator ? but its not blown ( none of the fuses are Blown ! ? ) also other stuff on # 5 Fuse list all work like the fuel Gauge . SO ? anyone Know about this Fuse or Relay ? the turn signals do jot work now front or back ( all where working except the Right Rear until I shorted the Wire that looks to work the R.R. Turn signal As the 4 Way flasher Works fine still does that mean the Relay is fine ? Or ? (1) where is the actual Turn signal Fuse ? ( or do they not have a Fuse ? ) (2) Where is the Turn Signal Relay ? < (2A) is their a Turn signal Relay ? (3) I note their is Turn signal Indicators that where working "in the dash" until I shorted the wire out when working on the R.R. Taillight / they stopped working when I shorted the wire out Darn (4) what on earth does Mercedes mean on the Fuse Chart List by TURN SIGNAL INDICATOR ? ( are that talking the " flashing lights " in the dash when you move the Turn signal plastic arm ? that now no longer work ? ) As the fuse was not Blown I wonder what all that means ? perhaps someone wired this car weird somewhere ? How can I fix this no longer working Turn signal Problem ? I read their is A No longer Available Relay ? is that the Problem ? and just where is this mysterious Relay ? As the 4 Way Hazard lights work so the switch still works does this mean the something ? I don't see or know where these Relays are ? and I certainly think the Turn signals must have a Fuse ? Thanks everyone and if you Know how to fix this issue Thank You Last edited by aluminum; 11-23-2023 at 08:17 PM. 
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#2
11-23-2023, 09:54 PM
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1967 was a change over year so that means this could be a 111 or a 108. Mercedes had some left over 1966 250s cars and they sold them in the US as a 1967 once the calendar turned.
I have a wiring diagram for a 111 and I could sort through it. If your car is a 111. I think the first official year for the 108 was 1968 but they did start in Europe in 1967. Anyway, let me know and I will help if I can.
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#3
11-23-2023, 11:09 PM
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Quote:
Thank You as far as I know its a W108 sedan and I am mostly sure that's correct ( W 108 model ) do you think its the flasher shorted out ? and does the W 108 have a Separate Flasher just for the turn signals ? ( the 4 way Hazard Flasher still works ? all 4 lights front and Back ? ) Thanks for reply on Thanksgiving also I am amazed their seems to be no fuse ? I must be missing something ? ( I saw the Small Spark flash when I shorted it out then DEAD )
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#4
11-24-2023, 02:00 PM
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The emergency flasher for the 108 is built into the switch. So that's why it is still working.
It appears that when you turn the indicator to left or right no lights come on. I will start with that. I do not have a wiring diagram for a 108 but I have done enough wire chasing that I can probably come up with something. German cars of that era were wired oddly. I chased such a thing on an Opel once and it turned out to be a bad ground on one of the sockets. Be back soon.
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#5
11-24-2023, 02:20 PM
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Maybe not solved but a place to look.
The flasher relay is combined with the emergency flasher relay. This can be removed and there are six electrical pins on this box. You will need to test the function of each pin to see if it is passing current. This is not difficult. Just time consuming. To remove the relay from the dash unscrew the knob, unscrew the ferrel holding the switch/relay to the dash and remove it from behind the dash. Then just unplug it. But check all your grounds. Clean the insides of each bulb socket. One bad ground can kill the entire system. Also pull your fuses one by one and clean the contacts in the fuse holder. The fuse can be good but resistance builds up on the fuse box contacts and will prevent current from passing. This is easy to do and should be done every twenty or so years to prevent a weird electrical failure.
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#6
11-25-2023, 09:04 PM
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On Early Morning energy I decided to look on a 72 Parts car I have up here
with the Dash all ready opened up more of less I found the Flasher fast just next to the hand brake a round cylindrical aluminum tube like flasher with a 3 wire hook up and a 1 prong on the hook up making a total of 4 > It Bolts with 1 about 8 MM to a place on the Dash underside ( a 72 W 108 Hazard Switch is different that a 1967 ) Rather then remove is I then looked on the 67 W 108 and found it right away also in same place it had thew same hook up but was shorted then the 72 Flasher . Then I noticed from that Viewing angle that 1 Fuse was blown ! on the main fuse panel / It was not the fuse on the list that said something about the Turn signals ? But rather Listed as Fuel Pump ? Then I noted someone had soldered a wire to that terminal ? Suspecting that something had been hacked I replace the fuse and the turn signals began working as before along with the inside Signal indicator arrows . So as originally thought I had blue a fuse or the flasher ? as I noted that it was a tiny or small Spark I saw when I blue it > as a 250 S Model has no Electric Fuel pump I realized someone had used that non used Fuse slot to wire in something to the Flasher ( a very good Idea ! ) I also Read about the Flasher being next to the Hazard switch or a part of it But this was not the case ? Then this time with the battery disconnected I repaired the Rear Taillight turn signal " was a bad ground " and moved on . Thank You Idle and forum once again Note I see these Flashers are Very costly and no longer available humm . All in All once you know your way around these Mercedes only some stuff is really hard not all .
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