My 99 E300 has a license plate lamp that is out. Do you replace through the trunk or by removing the plate on the outside? I tried on the outside and the clear plastic did not want to come out. I didn't want to force it too much for fear I'd break it. One thing I did find was rust behind the plate. I've sanded it and repainted it with touch up paint. I was really surprised to find the rust....not a good thing on a FL car.

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99 E300 133K
98 ML320 99K
87 Saab 900 Turbo Conv 123K