PeachParts Mercedes-Benz Forum - View Single Post - How-to: Get the rear foglight(s) working on a US w123 (links to photos)

iq678 · #13 11-07-2008, 02:58 AM

Hmm. Sounds to me like you added a 2nd set of brake lights, along with an additional set of rear marker lights.

Rear fog lights are a bit different than marker (aka running) lights. They are roughly the same intensity as brake lights, and are only to be used in foggy situations. It doesn't sound like your setup utilizes the rear fog light switch in the dash.

If I have misunderstood what you posted, please let me know...