Bmw E90 Door Lock Barrel Repair fix DIY ! Not the actuator! Clicking sound when unlocking.

BMW E90 320d, Drivers door wouldn't lock and unlock, had a clicking sound. I first replaced the actuator, but problem persisted. I stripped out the door lock and found the barrel / cylinder was damaged from wear. In this video I strip out the lock and replace it with new parts.
BMW E90 Door Lock Barrel Repair. BMW # 51217162427

[@zojoguris8129]

Many thanks man :)

[@DaveInBridport]

Tip for getting the door lock off... use the key in the fob and just turn it then withdraw lock

[@DaveInBridport]

My E90 has an odd looking end on the manual unlock shaft. It doesn't seem to master which way you instal it on the barrel so why is it that shape at the end?

[@JohnChristensenZA]

Has a part not broken off inside?

[@DaveInBridport]

@@JohnChristensenZA the end that compresses the spring had broken so I bought kit to replace it but wonder why the part that engages with lock actuator is that odd shape.