What's Inside: Door Lock & Latch

Naturally aspirated tech and talk
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usury
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Prelude
Have you ever taken anything apart and wished you had taken better notes or photos? I have.

This post is part of a continuing series of posts that detail the internal construction of various things. This is not intended to be step-by-step instructions for repair/removal/disassembly/etc. Rather, I hope this post (and future posts) can serve as a reference for people who would like visual clues in making their own repairs.



See Also...
What's Inside: Door Handles
Window Channel Tab and Door Skin Crack



Left Side (Driver's US) Door
I never had the door latch mechanism apart (I'm the second owner since 1999). I believe this was the first time any of the door latch/handle stuff was apart since Germany.
Driver's Door Lock/Latch
Driver's Door Lock/Latch
01 PXL_20220628_165700355.jpg (137.06 KiB) Viewed 337 times


Door Lock Motor
Behind the door lock motor is another black plate that probably makes "slim-jim" style door lock attacks slightly more difficult. I don't have separate photos of its removal, though it is straight forward.

The ball end of the nylon rod (that connects the power lock motor to the door latch mechanism) has a small clip that helps keep the ball end secured on its ball. That clip is known to fail and break away, which has happened here. If the nylon rod falls off its ball, the lock/unlock functionality also fails, naturally.

This nylon rod does not have distinct left/right part numbers.
left or right pn: 944-537-511-00-M100
Door Lock Motor 01
Door Lock Motor 01
02 PXL_20220628_170133464.jpg (103.53 KiB) Viewed 337 times
Door Lock Motor 02
Door Lock Motor 02
03 20221206_125922-COLLAGE.jpg (146.58 KiB) Viewed 337 times


Door Latch Block
Door Latch Block
Door Latch Block
04 20221206_130056-COLLAGE.jpg (143.21 KiB) Viewed 337 times


Aft Window Channel
It should not be possible to remove the aft window channel quite so easily. The part circled in green is supposed to stay attached to the door. It is held on with two spot welds, both of which had failed on mine. For better photos of that part, and more information, see Window Channel Tab and Door Skin Crack.

There is a fastener that secures the black window channel to the part circled in green (and another one at the bottom of the channel, not shown). It may be possible to remove that fastener without removing the window. But removing the window is easy. Consider avoiding the hassle and just get it out of the way.
Aft Window Channel
Aft Window Channel
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Door Interior 01
The (very dirty) nylon part circled in purple has a separate left/right part number. I'm not sure which is which.
477-837-505-A-OEM
477-837-506-A-OEM

The black plastic part circled in orange is called the "Door Latch Socket". It does not have distinct left/right part numbers.
Left or Right pn: 999-168-004-40-OEM
Door Interior 01
Door Interior 01
06 PXL_20220628_172756072.jpg (182.18 KiB) Viewed 337 times


Door Interior 02
A slightly different perspective.
Door Interior 02
Door Interior 02
07 PXL_20220628_172808858.jpg (260.94 KiB) Viewed 337 times


Door Handle Removal
Door Handle Removal
Door Handle Removal
08 20221206_135403-COLLAGE.jpg (178.7 KiB) Viewed 337 times


Interior Door Pull
Interior Door Pull
Interior Door Pull
08 PXL_20220628_175641117.jpg (102.38 KiB) Viewed 337 times


Complete Door Latch and Handle, Exploded
Complete Door Latch and Handle, Exploded
Complete Door Latch and Handle, Exploded
09 PXL_20220628_183435662.jpg (409.84 KiB) Viewed 337 times


Freelance New Age Renaissance Man
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1987 944na with S2/Turbo facelift
Seattle, Washington, USA

#1

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danmartinic
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My door handle is not "springing back" very well these days... often sticks in open position & have to nudge it back.

Is there a simple lubrication or cleaning fix? Is it tricky to remove the handle?


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danmartinic
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I imagine I can get to this spring and lubricate it?

Do I have to remove the door panel to get to this or is there a way from the outside?


Inked20221205_095018-COLLAGE 2.jpg
Inked20221205_095018-COLLAGE 2.jpg (380.02 KiB) Viewed 86 times


#3

Seagrams
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danmartinic wrote: Tue Jan 10, 2023 10:31 am I imagine I can get to this spring and lubricate it?

Do I have to remove the door panel to get to this or is there a way from the outside?



Inked20221205_095018-COLLAGE 2.jpg
You can easily get to that mechanism without removing the door card. There is a screw on the side of the door in alignment with the door handle that holds it in place, after removing that you can slide the handle either forwards or backwards (I forget) and pull the handle outwards (it will look like the picture usury posted titled "Door Handle Removal").

I spray cleaning solvent and lithium grease this way every once in awhile to keep the handles easy to open.


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danmartinic
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Just what I wanted to hear... thank you!


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