My fog lights are not working, how do I replace the bulbs ? i already opened the little trap under the bumper but because I am working blind I do not know on what and how to push to remove and replace the bulb /

Did you ever figure out how to change the bulb. It should not be rocket science, since the 420 SEL I owned was a 30 to 60 second job. Like you this newer E-320 plastic door opens, but it feels like one solid piece of enclosed metal with no wires going to it. So I for one am at a loss on how to access the bulb to change it. Did you find out how?

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1989 420SEL 105575 miles
Pearl Black/Grey

1990 Chevrolet E-Cab C-1500
293,000 miles

1989 Olds Toranado Trofeo'
132,000 miles