I had fuse 6 keep blowing on me. My temp display didn't work. I unplugged the outside part at the fuse box -- no help. Had to cut a wire at fuse 6 to see where the short was -- either in the temp display, horn or blinkers. i think that is what shares that fuse. Not sure why but MB decided to make all the wires going into that fuse the same color. So although i wanted to just cut the temp display to eliminate it first as the problem, i couldn't tell which wire it was. Ultimately i just guessed and got lucky the first try . It was the temp display and the fuse quit blowing and everything else on that fuse worked. I'm going to try taking my cluster out some time and maybe i'll see why it was shorting.

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What Would Rudolph Do?
1975 300D, 1975 240D, 1985 300SD, 1997 300D, 2005 E320 , 2006 Toyota Prius