new Origin New Rear Window Nut for Aixam and Minauto All Aixam and Minauto Models The rear window nut (often a plastic cap nut or a shouldered metal nut) is an essential technical fastening component located on your microcar's tailgate. It secures and holds the rear wiper motor shaft or the hinge mounting through the rear window glass. Subjected to constant vibrations generated by the twin-cylinder diesel engine, this nut tends to loosen over time, crack (if made of plastic), or seize due to rust. A loose or damaged nut can cause play in the rear wiper arm, knocking noises, and dangerous water leaks into the luggage compartment. €6.90 Add to cart