Thanks. Now that I think about it, that makes sense- shouldn't have needed to ask the question in the first place.

I can really only find Reinz gasket sets. I've used Reinz before but never on a Mercedes (in fact, this is the first Mercedes head gasket I've done). Would that be a bad move on this car? I'm going to call the dealer on Monday to get a quote for a genuine gasket, but if it's much more expensive and the Reinz works as well, might as well not throw $ away.