I was just thinking( Oh No) if this may become a ongoing problem. I think we are not the only ones. I was 500 miles into a 8000 mile trip. The part had to be ordered and the MB dealer broke my vent cover on the lift (new). I did not find it till I was about 400 miles down the road (Duck tape to the rescue). He did however eat the overnight that MB would not cover. But he did not mention the cover.
George & Karen
2014 F150 4X4 5.0L 3.55 Axle
Husky Centerline TS 1200lb 4 point WDH
2017 Rockwood Mini Lite 2109S