Just grab the bulb by the glass and pull straight out. You can buy the little light bulbs at your local auto parts store. The car will not pass a CA smog test unless that light illuminates and then goes out when the engine is started.

Sylvania 2721 or 2721LL will be the bulb you're looking for or you can always purchase it at the dealer.

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1998 E320 Wagon

1992 300D 2.5 TURBO

1991 560SEL M119.960

1986 300SDL TURBO

1992 500SL Parts Car

1991 420SEL Parts Car