Sorry I don't have one to sell but can help you with the MB part no.
It's a Handbetatigaung Verdeck (Hand-operated Top) - part # 129-581-00-66 .
Cheers
Alan
soft top wrench p/n # 1295810066 price $12.50 MSRP, discounted to $9.00
See picture of R129 tool kit , p/n 1295800003 for $103.75 at Parts.com - For every part of your life with the rear soft top compartment wrench positioned as the third tool from the left.
Note: they changed there ground shipping costs to read, "Shipping Costs: No more than 15% of total order or a minimum of $10.99 and a maximum of $50.00 * does not apply to large component items, see chart below for freight charges on these items."
This means that any total order under $73.33 will be charged a minimum of $10.99. So be smart and order over that amount in order to save.
If you are in a bind Airport, you can use a 10mm wrench. You just need to grind it down because a standard wrench is too thick to fit in the lever.
I forget the size of the allen key, but it is pretty standard too.
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