As I recall the clip was installed easily using needle nose or channel lock pliers. I remember that I took great care to cover any openings in case I dropped it.

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07 E350 4Matic wagon, 06 S430 4Matic, 99 SLK 230
retired W210 (x3), W124, W126

I was actually wondering about how tight of a fit the plate was going onto the master link. Did you have to press it on somehow or did it slide right on.

I don't recall it being that difficult. I do remember that I positioned the two chain ends on a gear sprocket and that gave me more stable work area.

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07 E350 4Matic wagon, 06 S430 4Matic, 99 SLK 230
retired W210 (x3), W124, W126