FUSE PROBLEMS!

[Sambo]

hey there hope someone can help I recently keep blowing my coil and ignition fuse which stops my mb in the middle of the traffic have started it up at home let it idle for fifteen odd mins runns fine went around the block fine the first time second time it blue the fuse I can't replicate this when it's idles at home has anyone had this prob or any ideas ?

[Tez]

Think I'd be looking for a dodgy connection or wire - something that might be shorting directly to Earth (car body?) by vibration (when the car is moving)...
Maybe there's a wire in the circuit that has been rubbing against the body and has worn through the insulation just enough, that if the car is static, it doesn't short, but when mobile, the vibration/movement is greater and enough to short...

[cozza]

i had the same problem try disconecting your thermo fan switch in the radiator if your still useing that setup, mine was buggered and stopped mine dead everytime, try that see what happenes, if not id have no idea.

[Sambo]

Up date problem sorted looks like some wires rubbed through going through the fire wall . upgraded all bushes & suspension made it a lot rougher proberly made the wires rub