Thread: Central locking drivers door issue

Originally Posted by loanrangie

Mine is giving the door open dash sign and occasional horn beep when locking so will be up for a new one myself at some stage.

I’ll give the strip down, clean, and rebuild idea a go and let you know.

Ok, so all done. As per other accounts, the main motor was all gummed up with dirt from the contacts wearing. While I could have cleaned out the motor and reassembled, the brushes were nearly gone so I chose to replace the motor, given I have a half dozen just for these occasions. Getting the gear off the old motor was ridiculously hard. It destroyed the old motor in the process. If someone hadn’t stolen my blow torch recently I’d have applied heat.
Putting the gear onto the new motor I found the shaft size marginally smaller and so it was only barely an interference fit. It was enough that with some locktite it bound up. Managed to reassemble, and she works.
A couple of photos below that show the innards plus new motor versus the old. There is a difference in shaft length and thus the shaft isn’t supported at the top, but it doesn’t seem to affect it. It locks solidly now. Worst case it fails and I buy a new assembly. Best case, it continues to work.
Hardest parts were releasing the window (two people makes that easier), and getting the clips undone for the outside handle’s cable. PITA!

I opened mine up for sh*ts and giggles found the motor brushes and commutator worn out completely.
Must turn off drive away locking to save wear and tear of motor!

Same problem as D2 as well...

Originally Posted by northiam

I opened mine up for sh*ts and giggles found the motor brushes and commutator worn out completely.
Must turn off drive away locking to save wear and tear of motor!

Same problem as D2 as well...

Well in the end it wasn’t hard to do and the motors are cheap(ish) so I’ll put it down to one of those things.
The motors are similar/these ones
2 pack GENUINE MABUCHI 20mm LONG SHAFT Car Door Lock Actuator Motor Lexus Toyota | eBay

Originally Posted by DiscoJeffster

Well in the end it wasn’t hard to do and the motors are cheap(ish) so I’ll put it down to one of those things.
The motors are similar/these ones
2 pack GENUINE MABUCHI 20mm LONG SHAFT Car Door Lock Actuator Motor Lexus Toyota | eBay

Mate nice work repairing the lock. I wasn’t game myself but with my second door lock failing in 2 weeks I’m thinking they are all just about buggered and it’s going to be an expensive exercise replacing them all. Might be worth a go to fix it. Can I ask what the exact motor shaft length is? 25mm or so? I did see ebay had a few at 22mm long. Cheers. Fiss

Originally Posted by fisser

Mate nice work repairing the lock. I wasn’t game myself but with my second door lock failing in 2 weeks I’m thinking they are all just about buggered and it’s going to be an expensive exercise replacing them all. Might be worth a go to fix it. Can I ask what the exact motor shaft length is? 25mm or so? I did see ebay had a few at 22mm long. Cheers. Fiss

Unfortunately I destroyed my original getting the gear off, pulling it off the coil end so I can’t give you an exact size, however I looked at my invoice and I did purchase 20mm so 22-23mm is probably on the money. I seem to have also binned the remnants so I can’t measure total shaft length to work it out either sorry.
The 20mm shaft doesn’t flex so you won’t go wrong no matter which way you go. I’ve actuated the repaired one now about 20 times or more and so far so good.