Your original front turn signals were amber, and the bulb was clear.

Since the previous owner installed clear corners, the bulb has to be amber to be legal.

Many guys with clear corners use clear bulbs. Why I have no idea.

The bulb needs to twisted a quarter or half a turn to be removed.

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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".