Features:If the door can't lock or unlock or only can lock or unlock sporadically or has noise or car alarm goes off randomly. We can replace the old one to solve the problem.Pressing the lock or unlock button, the door lock actuator is activated and moves the door lock mechanism.This is a non-OEM product, accessory only!Specification:Type: Rear Liftgate Door Lock Actuator Condition: Brand NewMaterial: Metal, PlasticColor: BlackPin Number: 4Placement on Vehicle: Rear SideSize: 15x8x5cm / 5.91"x3.15"x1.97"(L*W*H)OE Number:51247304559Fitment:for BMW M235i 2014for BMW M235i 2016for BMW 220i 2015-2016for BMW M2 2016for BMW M235i xDrive 2016Installation:1. Align the lock actuator with the door lock mechanism. Securely attach the lock actuator to the door using screws or bolts, ensuring a tight connection to the vehicle's structure.2. Test the operation of the lock actuator to ensure it can properly lock and unlock the door.3. Note: The product is difficult to install, professional installation is recommended, it is recommended to find the relevant installation video and then perform the installation operation. We recommend closing the Windows without any door lock problems.Package Included:1 x Rear Liftgate Door Lock Actuator. Note: Please use the make, model, year drop down bar to confirm the compatibility before.