Originally posted by blackmercedes
Most likely needs lubing. Easy job. Do a search, as it's been covered many times in various threads. Bewarned, most MB dealers won't lube it, but only replace the entire assembly at a high price.
Sorry but I don't follow what you mean. What is it that you suggest I lube? We have already replaced the wiper motor and it didn't help the problem. Is there something else (linkage?) to lube?