Nick: I'm sorry I haven't remembered to bring home that approved product list yet. On your questions concerningFastlane and Parts shop, I couldn't find oil for the self-levelling system in Fastlane. Are you entering the part number into Part Shop and getting quoted a price? If so, I would say with almost 100% certainty that they gotta be selling you the MB stuff. I would email Mercedes Shop directly and ask them. Maybe the moderator doesn't forward this type of post to the appropriate people, I would ask directly, as that sounds like a purty good price. Actually, if they know it to be approved by MB, I would go for it even if it isn't straight from MB.