A1. Sounds like you may have a problem with the wiper relay, the passenger wiper should sit lower than the drivers, I don't think they need adjustment.
A2. It would be a good idea to give the tranny a fluid and filter service, BM say its "lifetime" which is incorrect, it is advisable to change it between 80-100k but the earlier the better and then every 40k thereafter, if you are DIYing it I have instructions, although for an e38 but an e65/66 is not to dissimilar.
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