Replacing BMW F20 Front driver door Actuator

I am not a mechanic but I try to do must of the basic things myself. It wasn’t too difficult to install it. I did it in my free time and it only cost me £6.24 for the used replacement parts from ebay and it’s a genuine bmw parts. There were brand new aftermarket parts from China for £45-£60 but I didn’t go for them. I hope this video could help if you want to install it yourself.
If I were to go to mechanic it would cost it around £300
My car is BMW 1 series 114i F20 2013
Replacement part no. 7202150 (5pin) Door Actuator

[@alx6584]

Good morning, following a centralization problem on my front left bmw f20 door, I changed the electronic lock. centralization works again but manual opening/closing (with the key) no longer works. Do you know where it could come from? THANKS

[@nepaliguy01]

Hello Alex I am not a mechanic. It looked not very complex job so I did a diy. It didn’t give me same issues as yours after changing the actuator.Not sure why that doesn’t work, sorry. Hope you sort it out.