I recently purchased some LED bulbs from SuperbrightLED.com, for my instrument lights.

AMAZING lights, however, I discovered that due to differences in the amount of resistance, LED bulbs (unless load resisted) cannot be used in the Anmeter warning light, or the brake pad wear indicator sockets... When I had an LED in the battery light socket, when the car was started, the brake and battery lights were on. I thought this was just a cossed connection somewhere, as the LEDS are +/- spacific.
Not true, when the battery light is on the circuit is broken and even though the car is running, that LED is somehow interrrupting the charging circuit. Replaced it with a standard 194 bulb, everything works fine.
When I had an LED bulb in the brake pad socket, when the car was started the light would light up as ususal, and go out, but when I put on my seatbelt the seatbelt light and the glowplug lights would light up.

The moral of the story. LED bulbs (72 and 194) work excellently in the instrument illumination sockets, and really spectacularly in the turn signals and high beam indicators and glow plug sockets. None the less I give two thumbs up for superbrightled.com.

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RIP: 80 300SD
RIP: 79 450SEL
2002 E430 4matic (212,000km)
2002 ML500 'sport'

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