Takedown, the OEM is Osram Sylvania. These bulbs/lamps are available at various auto supply stores. Pep Boys used to carry them. So check locally before placing an order online or buying them at a MB dealer. It's critical that they are the correct wattage; otherwise the electrical system may malfunction. Check your Owner's Manual for the design wattage of the various lamps.

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Fred Hoelzle