Just for the record, I removed the lenses on my Bosch euro's, and they are glass.

They have Bosch stamped on the lower right of the fog lamp area, and have E1 stamped in three different places on the glass.

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Paul S.

2001 E430, Bourdeaux Red, Oyster interior.
79,200 miles.

1973 280SE 4.5, 170,000 miles. 568 Signal Red, Black MB Tex. "The Red Baron".