The driver's fog light is not working. I tried a pair of new H3 bulbs. I swapped the old passenger's bulb to the driver's side. I checked the fuse on the driver's side instrument panel. None of the methods is working. Only the passenger's side light up.

I am thinking the driver's side fog light has a loose ground connection. I will need to confirm this with a multimeter.

Where does the driver's side fog light ground to?

Thanks
Car Nut

Replace the harness. There is a repair kit for this frequently defective item. See W210 Foglight Connector /Repair Harness

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