[bmwchue]

Hi i have a 2013 bmw 328i. so today i just found out that my passenger side door doesnt lock when you lock it. the knob is up so i pushed it down but that didnt work. I can still open the door from the outside. I dont hear any noise from the motor on the passenger side but i hear it on the other 3. Im not sure if its the door lock actuator or something else. where do i start? thanks

[Korvo]

Originally Posted by bmwchue

Hi i have a 2013 bmw 328i. so today i just found out that my passenger side door doesnt lock when you lock it. the knob is up so i pushed it down but that didnt work. I can still open the door from the outside. I dont hear any noise from the motor on the passenger side but i hear it on the other 3. Im not sure if its the door lock actuator or something else. where do i start? thanks

I think you nailed it. The actuator is exactly where I would start.

[tex2670]

If you search "actuator" in this forum, you are going to find many posts. Seems BMW should have recalled this part, or issued a TSB.

But on a '13, you are likely on your own... Again, if you search, you will find DIY to replace.

[bmwchue]

Originally Posted by tex2670

If you search "actuator" in this forum, you are going to find many posts. Seems BMW should have recalled this part, or issued a TSB.

But on a '13, you are likely on your own... Again, if you search, you will find DIY to replace.

yes I did search but their problems were a little different. now the hard part is finding the right part no since I dont have comfort access and no alarm

[Korvo]

Originally Posted by bmwchue

yes I did search but their problems were a little different. now the hard part is finding the right part no since I dont have comfort access and no alarm

I hear that. It was a challenge finding the part. I ended up finding a salvage on eBay. Same year, same specs, same everything. It was easy to change!

[Orion4]

Go to Realoem.com with your VIN or your dealers parts dept to get the correct pn.

[bmwchue]

so update bought the door actuator from fcpeuro.com and problem fix

[flyguy27]

So what part number did you get?

[bmwchue]

Originally Posted by flyguy27

So what part number did you get?

https://www.fcpeuro.com/products/bmw...ht-51217202146

[gameson]

Originally Posted by bmwchue

https://www.fcpeuro.com/products/bmw...ht-51217202146

This is strange why the right side is $80 but the left side is $200, part number 51217202143

[brandonmane]

Why is there such a huge price difference for the left and right side? Doesnt seem right.

[rblakenyc]

looking to solve related problem by replacing actuators and saw same thing with pricing. I suppose it could be stock/demand? Anyway, going to try lubricating first - hoping to get some insight on what spots to lube. (My problem is pulling inside door latch doesn't fully unlock - have to use unlock button. Started with passenger and now driver - both periodic but passenger more often. If anyone reading... link to step by step lube and/or actuator replace?

[auburnf30x]

Originally Posted by rblakenyc

looking to solve related problem by replacing actuators and saw same thing with pricing. I suppose it could be stock/demand? Anyway, going to try lubricating first - hoping to get some insight on what spots to lube. (My problem is pulling inside door latch doesn't fully unlock - have to use unlock button. Started with passenger and now driver - both periodic but passenger more often. If anyone reading... link to step by step lube and/or actuator replace?

DIY video.

I have not taken apart a failing F30 actuator yet personally, but my experience with them in general is that they fail because the plastic gearing inside breaks. At first it may just be a small piece broken off causing it to hesitate or operate erratically. Eventually, more of it, or the entire gear itself breaks off, and they fail to function altogether.

This is a design flaw on many modern actuators, and it stems from choosing cheaper plastic for the actuator internals that becomes brittle with age. To my knowledge there is no way to prevent it from happening other than not using the locks. They will just have to be replaced as they fail.