Hook key used to adjust door and window glass to fit 300 mm long hook key. The star washer needs to be released. This is the key to removing the large teeth nuts on the r50, r52, r53 mini cooper and cooper s that fix the door glass to the window regulator.
It is specially used to adjust the tension of the window sealing strip of the window drive. Application: Compatible with bmw mini cooper (r50/r52/r53/r55/r56) bmw 1car car (e81/e82/e88).
BM number: 513240.
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