I think Mercedes has to take the blame here? The pre '89 bungs were good, the post '89 ones are garbage no matter who made them.....
cheers

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cheers!!

I replaced one on my '89 and the original was rubber and the replacement was rubber, and of high quality. Original got damaged by someone putting a jack on it crooked most likely.

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-diesel is not just a fuel, its a way of life-
'15 GLK250 Bluetec 118k - mine - (OC-123,800)
'17 Metris(VITO!) - 37k - wifes (OC-41k)
'09 Sprinter 3500 Winnebago View - 62k (OC - 67k)
'13 ML350 Bluetec - 95k - dad's (OC-98k)
'01 SL500 - 103k(km) - dad's (OC-110,000km)
'16 E400 4matic Sedan - 148k - Brothers (OC-155k)

Quite, you wouldn't want to 'upgrade' to those post '89 ones.

They are certainly plastic technically though, Butadiene probably, just better at the job. Strikes me post '89 the quality of manufacturing engineering at Merc started to give ground to 'value engineering'.....

cheers

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cheers!!

Actually, this was really as of model year 1993. In 1989 the old engineering mentality was still in place.

Point...there is a slight but noticeable drop in build quality between my '89 and '93 TD's...too much plastic too

@ ps2cho...tried to find a number in EPC but can't find them, 'lift shoe' unfortunately gives nothing relevant... not sure which section they are in.
They pop out fairly easy, I did mine on a hot day - or 'last summer' as we say here took them off when I had the 'rust access points' sorry, 'jacking points' in the sills done..

cheers

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cheers!!