This part is just virtually impossible to fit... so I wouldn’t bother buying it... you’ve got to strip the interior of the door to fit it!!! It’s not worth the hassle, I blame Mercedes for making it so difficult 😡
Easy to fit once you have the door trim panels off, there are more than a few videos showing how to do this on YouTube. The only problem is the colour of the light it emits is slightly different to the other doors.