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Key won't work in driver side door

Old 03-16-2019, 01:08 PM
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Rev_Night
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Default Key won't work in driver side door

I have a 2007 350z Touring. For the past 10odd years, I've never used my physical key to lock or unlock the door, only used the key fob. The physical key is used in the ignition just fine. So I am prepping my Z for sale, and I want to fix this issue. I put the key in, turn it to the left, and it moves like 20 degrees, thats it. Can't lock/unlock the doors, can't move windows, nothing. The local mechanic said they tried squirting PB blaster etc.. into it, still won't move. It's probably corroded from lack of use. The problem is that even if I supply the new cylinder myself, the dealer wants $550 to install it and call out the locksmith to pair it to my key. I am trying to avoid this expense.

I repeatedly tried searching all over this forum, google, and other Z forums for a guide on how to dissemble the Door Cylinder Lock, soak each peice, clean it, and put humpty dumpty back together again.Does anyone know of such a guide?

Thanks all! Trying to play 'avoid the dealer' game for as long as possible.

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Last edited by Rev_Night; 03-16-2019 at 01:10 PM.
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Old 03-16-2019, 03:19 PM
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dkmura
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Sorry Rev- not a common issue with the Z. If it's really the door cylinder, I'd suggest removing it, soaking it in solvent and lubricating it until it moves again. Maybe you can write a DIY thread this time 'round.
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Old 03-16-2019, 03:31 PM
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Spike100
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My door lock also stop functioning with the key. In fact, there is rust forming under the key opening and door handle. I was able to get the lock to turn by squirting WD40 into the lock opening and putting it on the key and inserting this into the lock. It took a few "applications."

I have not disassembled the lock yet, but you would need to remove the door panel and the window to access the lock.
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Old 03-17-2019, 07:14 AM
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Rev_Night
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Spike - Are you saying I need to take apart the whole door to remove the door cylinder? I thought I just had to remove the handle first
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Old 03-17-2019, 08:18 AM
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I'm not sure. I was able to get the key to work so I didn't need to take things apart. I would think you need to remove the door panel on the inside.
_________________________________

EDIT: I just checked the door on my 350z. You can remove the handle from outside the car. But, this does not provide access to the door lock cylinder. You need to remove the inside door panel to access the door handle housing and the lock cylinder.

Last edited by Spike100; 03-17-2019 at 02:03 PM.
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