2000 Mercedes Benz S430 Repair Question
2000 mb s430 tail light on
What to do to fix?
Is this your brake, blinker or back up light? And if it remains illuminated even with the key out, then there's a short in switch/wiring controlling that circuit. This would be located (in the circuit) on the side feeding power to the fuse and not the side feeding power to the bulb.
You need to remove the switch controlling the circuit and use a test light/volt meter to probe the circuit until you find the short.
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Check that the light switch is turned off as these will have a L & R night parker that will stay on, check your owners manual and if the switch is in the full off position have a mechanic check the switch for a fault.
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