The drive shafts on these cars (incl the ujoint) are quite robust. Generally, it is the support bearing or the support bearing mount that has problems.

I have replaced a number of support bearings and housings on my 190 through 370,000. The u-joint at 370,000 has very little play.

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Jovan

'84 (11/83) 190D 2.2 5-Speed; Silver/Blue; Motor No. 00354, 402k mi (340+kmi mine)

'89 Porsche 911 Turbo Coupe; Black/Black; 53kmi
'05 BMW 530i 6-Speed; 302kmi
'19 Range Rover; 30kmi