Mike, definitely not. The bearings need a bit of lubricant. It's not that
difficult to get at. Just this morning I took out the leaf tray beneath
the wipers on my 190E and just opend the squirrel cage housing - there are
a number of clips that hold the cover on - (not sure in detail re your
model, but knowking MB it will be similar) and I just squirted some WD40
in there.... good as new. Mine was so bad it was beyond chirping and wouldn;t
even turn anymore
ps you might want to use google with your model # etc
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