RE Wiring for ignition switch the below is for 190 merc (w201 model) hope this is of use to you CIRCUIT 30 = RED 2 CONNECTIONS CIRCUIT 50 = PURPLE CUICUIT 15 = RED/BLACK CIRCUIT 15R = RED/GREEN CIRCUIT P30 = GREEN/WHITE (SMALL WIRE) CIRCUIT 15X = RED/YELLOW CITCUIT 15T = BLACK/BLUE
Ignition switch.
Ouch! this could be a problem. I would start by looking for a Bentleys guide. You may need to contact Mercedes directly or a repair shop for a wiring diagram.
first you pull the plastic rod then turn on the ignition
Minus - connects to the distributor and Positive + connects to the ignition.
Looking at the plug from the blade side directly on you should see a larger blade (silver) on the right, smaller (brass) blade on the left and a U shaped ground blade on the bottom. The white wire connects under the right (silver) coloured screw, the black wire connects under the left (brass) coloured screw and the green wire under the green ground screw. If it is only two wire lamp cord the wire with the raised rib on it is the identified neutral wire and it connects to the silver screw. The other connects to the brass coloured screw.
When turned to the "Off" position, it connects the ignition to the frame ground to turn off the ignition and therefore the spark (fire.)
There are two visual differences between the "hot" and neutral side of a duplex receptacle. Looking at the face of the receptacle the blade sizes are different. The smaller blade is the "hot" side where as the larger blade size is the neutral.On the reverse termination points, the "hot" wire connects to the brass coloured screw and the neural wire connects to the silver coloured screw.The U shaped opening is for the ground blade and the reverse side, the green coloured screw is where the ground wire of the circuit connects.
In normal home wiring the black and white supply the circuit voltage. The green conductor connects to the green screw. The black conductor connects to the brass coloured screw and the white conductor connects to the silver coloured screw. There are additional terminals on the receptacle that connect to the down stream side of the circuit. By making these connections on the GFI receptacle all downstream normal duplex receptacles are also protected.
It's called a hyperlink or link
Disconnect one cable of your battery and turn the car key to ignition position two times, connects your battery and turn the car key to ignition.
There is a lock ring on the inside of the dash where the switch connects. You need to remove this lock ring to remove the switch from the dash.
There are three terminals on a coil: positive, negative and "center." The center terminal connects to the center terminal on the distributor cap. Negative always connects to the condenser in the distributor. If you have a tachometer, it connects to the negative. Positive connects to three places: the ignition switch wire, the backup lights, and the choke heater on the carb or carbs if your car is so equipped. Quick troubleshooting technique: if your car dies when you put it in reverse, unplug the wire to the backup lights and see if it does it again. If it does, you have a short in the backup light circuit.