Squeaky Door Locks

[John N]

I’m looking for good advice on how to stop my door locks squeaking when the weather turns colder. In the summer when it’s warmer they operate quietly but when the temperature falls I get a loud squeak from two of the locks.

For a few years I had the same problem on my previous LS430 and despite trying every type of oil, grease or silicone spray I could find, the squeak always came back in cold weather. 

I did eventually fix the problem on that car, but only by changing the lock actuator, which was an expensive fix.

 

John N 

[PCM]

Would this help?

https://www.amazon.co.uk/gp/product/B002MZZNTE/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

 

[The-Acre]

12 hours ago, John N said:

I’m looking for good advice on how to stop my door locks squeaking when the weather turns colder. In the summer when it’s warmer they operate quietly but when the temperature falls I get a loud squeak from two of the locks.

For a few years I had the same problem on my previous LS430 and despite trying every type of oil, grease or silicone spray I could find, the squeak always came back in cold weather. 

I did eventually fix the problem on that car, but only by changing the lock actuator, which was an expensive fix.

 

John N 

Do you mean on the soft close?

[John N]

1 hour ago, The-Acre said:

Do you mean on the soft close?

They are soft close locks, but the squeak comes when you press the key remote to lock or unlock the doors, not when the soft close works.

John N

[The-Acre]

17 minutes ago, John N said:

They are soft close locks, but the squeak comes when you press the key remote to lock or unlock the doors, not when the soft close works.

John N

I see.  One of mine does it on the soft close when it gets cold.  I'm afraid I don't know what would cause it without taking it apart which I haven't done yet.  Hopefully someone will offer advice but as it's not such a common issue it may be difficult to get the answer you need.

[John N]

4 hours ago, PCM said:

Would this help?

https://www.amazon.co.uk/gp/product/B002MZZNTE/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

 

It's not an issue with the mechanism freezing, it can happen at any temprature below 12 deg.

[Tomtit]

One of the locks on my LS430 has just started to squeak when I unlock with the fob. It has coincided with the recent cold spell. When I feel brave enough to work in the freezing cold I will take the door card off and see what is going on. I will report back.