Part number help central locking

[Willis90]

I need to replace the corroded connector that plugs into central locking control module 61 31 1 380302. I've tried looking on BMWinfo to no avail. Any other sites I can try?

[Scotty200]

Hi try www.etkbmw.com or www.realoem.com hope this helps
Scott

[Willis90]

Thanks but no luck on there either

[Brianmoooore]

Never investigated this, because I've never seen a corroded ECU plug.
Are you sure it's corroded, and not just stained with dirty water from being flooded? Corrosion of electrical contacts isn't just random, but happens when a set of defined conditions are present, which aren't normally all present at this connector.
The complete plug will only be available as part of the whole locking loom, but the individual pins are probably standard bucket connectors of a particular size, available from many sources. You will also need the correct tool to remove the pins from the plug housing, and when you've done so, you may find that they will readily clean up with the aid of a very useful tool, known as a fibreglass pencil.

[Willis90]

Upon removal of the unit I found that someone had previously wrapped the unit in a sandwich bag then taped up the top to seal it, however over the years moisture has got inside the bag and got trapped. I do have a photo but not sure how to upload.

All the door and fuel cap actuators are stuck in the lock position, so I've removed them to convert it back to manual locks. I can only presume the relay is at fault as they're all stuck. Either that or the drivers door lock switch but hat looks in good condition. Was unable to find any faulty wires through the door hinge plug.

[Brianmoooore]

It looks like the previous actions of the terminally clueless may have sealed the fate of this locking ECU. The usual effect of moisture entering the ECU case is that it powers the locking solenoids continuously, burning out some or all of them, and making them stick in the locked position.
The way to sort this is to disconnect all lock motors, except one, in turn, and apply a short pulse to the connected motor using two wire links across the pins of the ECU plug. Any survivors can be identified in this way.
If you search for previous posts of mine on the subject, you'll find detailed instructions of how to do this.
Once the duff actuators have been replaced, and the whole locking system works off of the wire links, a replacement ECU can be fitted, and any possible faults with the control circuit investigated.

[Willis90]

Top man thanks for your help