Well, now, how flattering, I guess. The mile long post about lubing the slides of the articulated wiper was posted by me on the R/E list long ago (I've been kicked off, now) but after posting it, many owners of older MB's (older than my '95 C280) said their cars did not have the easily removable cover, being designed in the case of 124s, in the mid eighties. So, the W202 ('94 and up) and later will have it but perhaps not earlier models, unfortunately.

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Regardless, I am convinced that when the arm is having trouble extending up into the corners, it's a lube problem and not mechanical. And the smell is the motor getting hot under the load.

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Roger E.