TYC 660186 Mercedes Benz M-Class Front Driver Side Replacement Power Window Regulator Assembly with Motor Offered as a full assembly providing unsurpassed interchangeability and convenience in repairs OE-comparable in fitment, structural configuration, strength, and torque Application-specific (non-universal) motor ensure optimal operating efficiency and power output 100% new components supplied by a reputable worldwide manufacturer Anti-pinch sensor and auto-retract mechanism (where applicable) ensures safety of passengers