Anyone think these would work?
License Plate SMD LED Light No Error Mercedes W203 C230 C240 C280 C320 C32 C55 | eBay
Going off memory, I think these are roughly the same shape as the OEM lenses. My plastic lenses are cracked, and I've tried numerous "flicker-free" LEDs that end up going on the blink in ~2 months. Seems replacing the whole housing would make the most sense, and the reviews on the Benz forums are pretty positive.
Cheers,