2011 MazdaSpeed 3 Door Lock Actuator Replacement

[@mystychaos]

Thank you! The disclaimer at the end…that’s where I’m at, figuring out how to get the stripped screw out 😅 Otherwise, so happy to find an MS3 video ❤

[@tangsiwei1]

I have the same problem of stripped screw. How did you fix it and get the new screw?

[@TheBananaSlugger]

Thanks so much for this video! We've had the "passenger door ajar" light issue on our 2010 Mazda 3 for a while now, and I'm just getting around to addressing it because it causes a battery drain that wasn't a problem until COVID (when I don't use the car as frequently)! I just wanted to confirm that you were able to order the OEM Mazda part, which I believe is BCS4-58-310E? A lot of retailers are showing this part as discontinued. Cheers!

[@sandrascragg2240]

On my 2010 Mazda 3 Sedan there is a second rod attached to a second lever on the actuator. The actuator will not come out unless you remove the second rod. It's easier to do if you remove the cover plate near the top of the door on the inside (1X10mm nut) accessed through a hole after you remove the black rubber cover. I don't know what this second lever does but obviously has to be refitted into the new unit. Took a while to figure out but once you figure out how to get it out, putting it back is easier.

[@lr672]

Thanks for posting. I have looked all over trying to find a video on replacing it and it's not much on here 🙁 this is helpful.

[@fabiolives]

L R not a problem! I wanted to make a better video but it’s difficult getting a camera in there. Let me know if you have questions

[@lr672]

@@fabiolives Did you order the actuator from Mazda? I haven't been able to find it anywhere online.

[@fabiolives]

L R I ordered both of them from eBay, it was usually cheaper there than the other places I found it. I just used another site to check part numbers, the driver side and passenger side use different actuators if you didn’t already know, driver side is just a tad more difficult. Not by much though

[@harpsoft]

If my Mazda has manual lock, could I install an actuator that has power lock and have it work?

[@rickyskaggs7571]

My door wont lock automatically any more with this solve the issue? I also can lock it and pull the handle a couple of times and it opens.

[@fabiolives]

If I remember correctly this will fix the issue. I saw this 6 months late but hopefully you fixed it

[@drewbush6535]

how did you know which one was bad? can you test it? did you use a scan tool? my car says doors are closed but alarm says door is open. not sure which door

[@bobsoft]

In general its the drivers door that has the most problems due to constant use.

[@Wow1w]

Hey quick question, does anyone know the size of the Philips head screws that hold the Actuator in place? misplaced my spares a whiles back and the other doors are done up tight.

[@dodolift7360]

Hi John, Does this also fix the issue where it says the passenger door is open when it's not. Just wanted to make sure since this is replacing the lock actuator which I don't know is separate from a sort of door sensor that the car might have. Thank you!

[@bobsoft]

In the door lock actuator there is a circuit that monitors if the door is open or closed. Replacing the door lock actuator will fix this issue.

[@dodolift7360]

@@bobsoft thanks! I actually installed a new one a few months ago and it completely fixed the problem.

[@TripppleP13]

Why did you replace this item? The same door in my MS3 will set off the alarm or give door open signal while driving.

[@fabiolives]

Peter Obrecht I replaced it for those exact reasons. It’s a common issue with MS3s and normal 3s from around that time, mine was doing the same thing and this stopped it. Ended up being both my front doors but your display will tell you which one it is.

[@TripppleP13]

Thanks so much for reply.

[@fabiolives]

Peter Obrecht not a problem. Send me a message if you have trouble, I’ve done it twice now and it can be a little finicky

[@TripppleP13]

I'm planning on doing this soon. DO you know if the above link is the part I need?

[@fabiolives]

Peter Obrecht sorry, didn’t see the previous link. That looks to be the right part, the only part I couldn’t clarify is if it’s for the front right or rear right but it seems to be front right. Let me see what my part number was

[@andym5538]

Hey, been trying this today on mine.. same as everyone else getting the door ajar issue or alarm going off when locked etc. Got all the way to the point of trying to remove the handle rod, for some reason I cannot push the tab down far enough to remove the rod - the 3 screws in end of the door are out, but it almost feels like it's connected to something else. Is it just this rod (and the other 2 internal rods to internal handle etc) holding this? Also seems to be some anti tamper metal plates there, I assume to make it so you cannot break in / pull the rods from outside the door.

[@baggedspeed3796]

My passenger door won’t lock it stays open but all other doors lock would this fix the problem?

[@fabiolives]

FCkenRigo in my opinion, yes. Often that’s another way this part fails.

[@ThePandaboi9]

At 0:58 what is that connector?

[@fabiolives]

Honestly it’s been so long that I can’t remember. I sold the car and can’t go back and check. Hopefully someone else chimes in that still owns one.

[@ThePandaboi9]

@@fabiolives No worries thank you though

[@psfgtech]

I bet the dealer is cheap, car was repaired in auto accident, I wonder if that's the cause