The BMW Mini Cooper window generator adjust hook wrench is specially designed to adjust the door window seal tightness from the window generator and needed to release the star washer. This is the wrench to remove the large tooth nuts holding the door glass to the window regulator on R50, R52, R53, R55, R56 Mini Cooper and Cooper S, and also BMW 1 Series E81, E82, E88.

• BM number: 513240

Model Name: JTC-4189