No Comments allowed no related to W220 cabin filters. This has to be one of the most neglected maintenance items I have seen in early 1990’s and newer Mercedes – especially the W220. Link to easy DIY replacement parts: https://mercedessource.com/store/w210-w220-w215-cabin-air-filter-set
Bid for stuff here http://qb.cm/r21019021 How to fix water not flowing out the head outlet on the cowl. Check your impeller, and thermostats.