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VW MKIV-A4 TDIs (VE and PD) This is a general discussion about A4/MkIV Jetta (99.5-~2005), Golf(99.5-2006), and New Beetle(98-2006). Both VE and PD engines are covered here.

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Old December 28th, 2010, 20:05   #1
00tdi
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Angry My jetta locked my keys in the car

So i was getting ready to leave to go to the store and my driveway's slanted uphill a bit and I get out to throw away a mcdonald's cup and naturally, my door shuts, key in ignition, and it LOCKS! Since i haven't had a spare key since the car has been in the family i had to have my brother-in-law help me break into it with a coat hanger. I was so pissed it wasn't even funny because this is such a pointless feature, IMO. I know I need to get a spare key made next time I go back home to SD because my dad gets a discount and it's better than paying $410 for a switchblade and a valet down here in AZ. I've pretty much learned my lesson but next time it happens, I will make a scene of Biblical proportions and beat the piss out of it with a sledgehammer . I've read posts about this POS auto locking feature but is it true i need Vag-Com or whatever it's called or a dealer to disable this? Don't really feel like paying the money for it since there's other things that my jetta would preferrably have. Any replies would be great, Thanks!

-Ben
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Old December 28th, 2010, 20:15   #2
Bob_Fout
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Mine's never locked on me if I close the door with the engine running.
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Old December 28th, 2010, 20:20   #3
fnj2
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I could say that if you get out of the car even for 10 seconds while leaving your only key in the ignition, there is only one place to put the blame - but that would be non productive, so I won't.

It's not clear to me why your door locked. I had the dealer change my auto locking feature when the car was nearly new, but that was just to stop the doors locking themselves with an ear shattering WHAP whenever the car got going 10 mph.

I'm not aware of why the locks would automatically actuate in a stationary car on their own, but I'm probably missing something.

I should say that mine is a 99.5, so I have no experience with the immobilizer piece of crap.
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Old December 28th, 2010, 20:26   #4
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My personal rule is to never trust a VW not to lock the keys inside, even with the auto-lock features disabled. If I do need to leave the key in there for whatever reason I'll put a window down and still be nervous.
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Old December 28th, 2010, 20:41   #5
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This will happen when the car is not aware that the driver's door has opened and then closed... ie... the usual sign of a defective microswitch in the drivers side door.

In other words, the car autolocking while stationary is usually the sign of something else.

Do your interior lights come on when you open the drivers door?

The stationary autolock can't be defeated with Vagcom evidently... only the "lock when you hit 10 mph" lock is a Vagcom setting. The real fix is to fix the door sensor.

http://forums.tdiclub.com/showthread.php?t=255853
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Old December 28th, 2010, 21:31   #6
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Bad door microswitch. Trust me, I know.

You unlock the car with the fob. Open door. Put key in ign, but don't start. In about 20sec car relocks the doors. Why? Because the door microswitch is broke and car does not recognize that the door ever opened.

The reason for this is if a random signal causes car to unlock, and no one gets in, it would be better for it to re-lock than stay unlocked all night.

Open your drivers door. If interior lights do not come on, its the switch and once fixed you will not have this problem again.
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Old December 29th, 2010, 04:57   #7
r72gsaol
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Mine also did the same thing when the micro switch was bad.

Here is the link on how to fix it. Cost me $10 and it's been fixed for a year. The other option is to replace the module with a new one for about $180. I would stay away from used; you don't have any idea how close it is to failing.

and I never leave my keys in the ignition with the door closed..................
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Old December 29th, 2010, 07:38   #8
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Good call all around on the microswitch. Now that I think about it, I've had strange random lock occurrances I couldn't explain. Beyond a doubt that was it.
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Old December 29th, 2010, 09:35   #9
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x3 microswitch
mine has worked intermittently for years
never leave key in ignition with windows up, always double click unlock before locking, open a different door, or just fix the damn thing
you might ask your local law enforcement if they can break in and get your key for you

Last edited by BobnOH; December 29th, 2010 at 10:00.
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Old December 29th, 2010, 12:06   #10
00tdi
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Thanks for the links guys, definitely going to get it fixed, but yes I just put the key in the ignition without turning the key and it just locks, opening the driver door doesn't activate the dome light so that's what it's gotta be is the microswitch. woofta
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Old December 29th, 2010, 12:52   #11
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Another bad microswitch. Had the same thing happen, no other symptoms. After the first time I made a habit of lowering a window whenever I left the keys in the car. BTW, it doesn't matter if the key is in the ignition or not, sometimes the doors will just all lock.
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Old December 29th, 2010, 13:47   #12
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Solution: Turn off the auto locking
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Old December 29th, 2010, 13:50   #13
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Better solution: why would you EVER get out of the car without at least one key in your pocket? Why?
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Old December 29th, 2010, 14:06   #14
Ski in NC
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Quote:
Originally Posted by fnj2 View Post
Better solution: why would you EVER get out of the car without at least one key in your pocket? Why?
Country living. Keys left in cars often around here.
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Old December 29th, 2010, 20:34   #15
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Quote:
Originally Posted by fnj2 View Post
Better solution: why would you EVER get out of the car without at least one key in your pocket? Why?
yep that's exactly it, country living, never had to worry about it in my little south dakota town . just got out for a split second heard my door close, got a bad feeling, threw away my cup and i heard the horn honk. woops!
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