I don't know how much room the W124 has but it was childs play on the W126. Two bolts simple to get at, in and out. Just make sure to clean out the old gasket. I had my radiator, lower hose, and fan out though.

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2016 Corvette Stingray 2LT
1969 280SE
2023 Ram 1500
2007 Tiara 3200