Hey Weasel - Would the "repair kit front right slide water channel" p/n 54-12-8-202-280 MSRP $14.03 be of any help to him in terms of the crushed drain tube issue? Shown as # 7 below.

Also, you have 4 drain tubes. Left/Right & Front/Rear. The rear ones are the same on both sides, but the two front ones are different from each other and different from the rear ones. The Front Right (passenger) drain tube is 51-13-7-000-496 & retails for $10.75. Shown as # 12 below. It's impossible to tell from the schematic how it is constructed and I don't have an actual photo unfortunately. Could it be possible that a cable holder (#4) (there are 8 installed in total) failed somehow and that led to the kinking and eventual clogging of the drain tube?

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