Not to bust your chops akimball442 but you've almost got it spot on. When you have a poor connection you have added resistance and get a voltage drop. A clean connection is in the milliohm range but when a poor connection comes into play, resistance really goes up. The device behind the connection is designed to allow x amount of current through and the circuit will still try to let that amount through, but now that current is also flowing across a voltage drop. That voltage drop, multiplied by the amount of current flowing through it, is refered to as...power, measured in watts being generated in your circuit where the added resistance is. Current in the circuit is almost the same but the power is being used where it shouldn't like melting stuff. Good point on checking grounds and fuses out. A poor connection on the fuse will cause it to melt due to heat. The circuit also needs a clean path to ground to do it's job. :thumbsup:If they are way high wattage, like 100 watts, it's possible that increased current consumption enough to make the kind of heat needed to melt that.
The problem actually is caused by a bad connection. Burned electrical connections in cars are 99% of the time caused by a poor connection somewhere. We had a run of bad headlight sockets at work that ran the same bulb as the US spec 126 that all looked just like that one.
When the connection is poor, a voltage drop occurs causing the current to increase. That = heat. The socket needs to be replaced at this point.
Check all connections, especially grounds. Any place that can cause a voltage drop in the circuit can cause this problem.
Even check the fuses. I don't remember on the 126, but it's possible that there are separate fuses for the headlights. I know there are on the 123.
Or upgrade to euros and control everything with relays![]()
Do you know if there is a DIY HID ballast Kit installed? If so these are famous to burn and that is deff. the source. These powered bulb coated halogen 100w bulbs that will not only melt your headlight housing but entire wiring harness. These bulbs from the company's like Raybrig, Polarg, Catz and Piaa sell these bulbs that produce a tremendous amount of heat to produce less light than a plasma and xenon filled bulb that is included in an HID kit.