Freewheel mechanism for BMW and Mercedes-Benz originally designed to allow movement of the vehicle when the Intelligent Servo Module has failed or the car is stuck in park. Developed to allow the BMW and Mercedes-Benz vehicles listed to be moved even with the gearbox/transmission locked. Mercedes-Benz applications: W164 (GL Class); W204 (C Class); W212 (E Class); W221 (S Class); W251 (R Class) - PCD 112mm black bolts.BMW applications: F01, F02 (7 Series); F10 (5 Series); F12, F13 (6 Series); F25 (X3); F30, F31, F32, F33, F34 (3 & 4 series) - PCD 120mm silver bolts. Equivalent to OEM 164589036300. German patent DE 20 2014 009 687.2. Particularly useful when the transmission servo module fails preventing the transmission from being taken out of park.