Dealer costs are probably high, I've seen factory tool sets on eBay typically $35 to $65. Except for the lug wrench, they're usually unused. I think alot of DIY pack their own non-factory tools. You can add as many tools as you want, Jim's list is typical. There's a manual sunroof tool too. The wrenches are two sizes. I've never seen them at self-help dismantlers but you may find them at Mercedes specialty yards.

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