The monowiper assembly is a must remove job for a later W124 as the lower weatherstripping (batwing) is trapped by it.

The distance clearances from the bottom and sides are also very critical otherwise the lower trim pieces (older model) or batwing (later model) along with the wiper may not fit like it should.

btw - speaking of which - does the new glass come with the plastic/metal edge piece that holds the batwing in place in later models?

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2012 BMW X5 (Beef + Granite suspension model)

1995 E300D - The original humming machine (consumed by Flood 2017)
2000 E320 - The evolution (consumed by flood 2017)