Materials to Maintain Your ZHP IIIII Hand Protection IIIII Tools to Maintain Your ZHP
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  1. #1
    Join Date
    Jan 2013
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    Always wondered why ...

    When I hit the unlock on the remote key fob one time, why do all the locks click loudly but only the driver's door unlocks? What is the passenger side doing? A self test?

  2. #2
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    Normal behavior, a security feature. One press for driver's side, 2 for both/all.

    '21 M2 Competition
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  3. #3
    Join Date
    Jan 1970
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    That can be coded if you want all unlocked at once for example. This would fit in the 'random zhp question' thread.

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  4. #4
    Join Date
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    But why does the passenger side click when I only press once? Drives my wife nuts because she hears it click thinking it's unlocked, but it's only a cruel joke.

  5. #5
    Join Date
    Mar 2011
    Location
    Philadelphia
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    Quote Originally Posted by Dave1027 View Post
    But why does the passenger side click when I only press once? Drives my wife nuts because she hears it click thinking it's unlocked, but it's only a cruel joke.
    When you lock the car from the keyfob, it does it in a way so that the door pulls from the inside do not work. When you unlock it, even if you only unlock one door, it enables the door pulls on both sides (so that someone in the car could double-pull to get out)

  6. #6
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  7. #7
    Join Date
    Feb 2013
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    Austin TX
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    Quote Originally Posted by terraphantm View Post
    When you lock the car from the keyfob, it does it in a way so that the door pulls from the inside do not work ...
    Fatal case involving an e36:
    http://www.nbcnews.com/news/us-news/...locked-n100881

  8. #8
    Join Date
    Nov 2014
    Location
    Portland, OR
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    "We didn't envision the situation where someone would lock somebody in the car from the exterior," he said, adding that the design of the locking system was changed in 1999.
    Damn shame. It sounds like it was changed for the E46. I've never had to test it. The doors might not unlock from the inside but isn't the center console unlock button supposed to work?

  9. #9
    Join Date
    Mar 2011
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    Quote Originally Posted by BMWCurves View Post
    Damn shame. It sounds like it was changed for the E46. I've never had to test it. The doors might not unlock from the inside but isn't the center console unlock button supposed to work?
    Iirc, if you press the central locking button while inside, the door pulls become reenabled. This is only for US-spec cars (and the behavior can be changed via NCS expert). In E36s (and I think even very early build e46s), the central lock button does nothing.

    I guess BMW should explain the double lock better. I only know of it because I accidentally hit the lock button on the key fob when I was sitting in the car the one time. Personally if I ever leave anyone in the car, I just give them the keys so they could turn on the AC, open windows, etc.

  10. #10
    Join Date
    Apr 2015
    Location
    Raleigh, NC
    Posts
    321
    Yeah, that is tragic.

    I'm curious about this now. How does the E46 behave? Has anyone tested it? I'll do it this week, with the windows down & in my garage, but damn.

    I also thought double lock was literal. i.e.: one click of lock and you can open it, two clicks and it double locks, disabling the interior pull.

    It would be great if we could code it to always open from the interior pull.

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