I was switching out my battery in my 2000 ML 320. I touched the positive terminal off the piece of metal that surrounds battery. When this arced out I lost all my gauges. I checked all the fuses in the fuse box and they're good. Was talking to Roy and one of his buddies said it's the K 40 relay. I can't find the K 40 relay anywhere. Does anyone know where it's located. Or is there anything else I can check?
Thanks. Jay

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83 300TD Sable 402K " Work Truck "
81 300SD Gray 240K " Loner Car "
04 E320 Blue 90K " My Winter rig "
07 BMW X5 4.4 118K " My Summer rig"
04 Jetta TDI Wagon 168K " Wifes "
08 Toyota FJ 109K " Wifes winter rig "
04 Jetta TDI 120K " Daughters Car "

Found the problem it was a fuse that looked okay but was actually burned out.

__________________
83 300TD Sable 402K " Work Truck "
81 300SD Gray 240K " Loner Car "
04 E320 Blue 90K " My Winter rig "
07 BMW X5 4.4 118K " My Summer rig"
04 Jetta TDI Wagon 168K " Wifes "
08 Toyota FJ 109K " Wifes winter rig "
04 Jetta TDI 120K " Daughters Car "