Does all E34 have a deadbolt locking function?

[joshua43214]

I have a 95 and it does not have the deadbolt locking feature (or is it broken?)

You do have it, it is called double lock not deadbolt. the owners manual has a full description of how to use it. basicaly turning the key partway locks the car, turning it all the way double locks the car. when double locked, you can not unlock the car from the inside or start the engine until it is unlocked with the key or the remote. you can double lock the 540i by hitting the lock button 2 times on the remote, if you do this, you will not be able to unlock the double lock with the key, so use it at your own risk since EWS-II sucks.

Not sure when people started calling this deadbolt.

[Espen]

I called it deadbolt just because i saw other calling it that.
Its a bolt that physical locks the actuator, right?

Ive searched alot on my problems, but my english skills aren`t that good, so i couldnt find the right keyword to search for.

It allways work the second time the car tries to lock when i hold the key all the way to the right, but it doesnt doublelock..

Any englishspeaking people who could find appropiate searchwords for me? For the following subjects:
-Central lock not working on passenger side.
-Double lock not working
-Lock pops back to open, when i do a "quick push" on the key to the right..

Thank`s alot.

Espen.

[Incantation]

or start the engine

i didn't know that.. that's pretty cool so i guess putting the code in is just an extra safety function if that's the case

[Espen]

Oh well, i forgot to mention that my windows and sunroof doesnt roll upp when i hold the key all to the right.. Could it be the "sensor" in the lock that doesnt "know" that the key is all the way to the double lock position?

[Paul in NZ]

AFAIK the early cars had the two posistion locking 1st was normal lock,second was double lock or deadlocking.The later cars may double lock automatically ,esp from the remote.If you want to research these problems the easiest way is to look at Javiers profile and look through his posts,he ussually responds,to these sort of questions.Its a multi feedback system,so there are different components and lots of wiring,to do which on the face of it seems a simple thing.

[SchnellE34]

Ok I just went out to the car to double check before posting. Not sure if this is going to help cause my car is a '95.

First of all, you don't have to have the window open to double lock the doors. (you said 'I rolled down the window and tried the double lock') Just an FYI.

With Key, on driver's side: I hold the key as far as it will go to the right about 45 deg and the doors lock. If I hold it there all windows and sunroof will close. But I never hear the double lock.

With Remote: I press the top button and the doors lock. I press the middle button and I can hear the double lock. You may want to ask Jay about his aftermarket install. But I'm not sure if you will be able to use th double lock feature with an aftermarket keyless entry system. I put an auto start/keyless entry system into my '89 535i and the installers told me that the remote would not double lock the doors. Also on my '89 I could have sworn I had to turn the key completely horizontal (90 deg to the right) to double lock the doors. Not sure if you can do this but its worth a shot.

Anyways, I think you have an actuator problem. Do a search on the board for more information.

If you knew all this disregard my post, just my .02

[joshua43214]

i didn't know that.. that's pretty cool so i guess putting the code in is just an extra safety function if that's the case

EWS-I(remote fob) may not have starter lockout, but EWS-II(3 button key) does, as well as he code in the OBC on the e34. The EWS-II(and maybe the EWS-I) can have the double lock feature defeated by the dealer so it wont function any more as well. Its all over redundant IMO. It is almost impossible to over ride the ignition lock on a BMW in the feild. Anyone who can do this, will be smart enough to just tow your car to a chop shop or stick a gun in your face while you are stoped at a light.

The double lock feature is cool in some places, but all it will do is slow a thief down a bit, not stop them. If you have ever fixed cars that where broken into by professionals, its pretty clear that not much would stop them. They will be in and out of your car with all your valuables long before the police arrive even with the alarm blaring. Not to mention, thieves will often slash tires or break all the windows if they get pissed at your car for not opening up. I knew a guy back in the early 80's that put razor blades on the bottom of his FM convertor, he found his convertor gone, all of his tires slashed and the body looked like it had been gone over with a sledge hammer. And he still had too clean all the blood from his interior. I have seen this sort of stuff on cars I have worked on over the years as well.

I normaly recomend to people not to use the double lock feature both because of the buggy nature of EWS and the potential for revenge from a would be thief.

The owners manual has the best description I have seen on how to operate the door locks and the assorted features, I would read this to get an understanding of what it is supposed to do.

Basicaly, when you operate any of the key locks, you are triping a microswitch that tell the EWS to lock or unlock all of the doors. If a lock does not travel far enough, the EWS will interpret that as a comand to unlock and then unlock all the doors. so, if every thing works fine from one door, but not another, themicr switch in the faulty door is most suspect. If a door locks and pops up again, most likely it is a weak actuator or a sticky latch.

Search the forums, there a tons of posts on this.

[31Hertz]

"You do have it, it is called double lock not deadbolt." Ach, ja Joshua, I see it now on page 9... I was accustomed to the E28 which you had to turn the extra distance to engage. I have read the manual, but it's been a while. It is funny that they call it the "double lock" since you really have no choice. I guess it's akin to "these locks go to eleven."

[Kakaire]

Search for "Trunk Hinge wires"

[Espen]

Ive read through some post from Javier on this subject..

Ive also tested alittle on my car, the conclusion so far:

When unlocked, i turn the key right 90degrees in the drivers door, all doors locks, and all of them pops up again

When unlocked, i turn the key right 90 degrees in the drivers door, and hold it there, all doors locks, unlocks and locks again.

When unlocked, i turn the key right 45 degrees in the passengers door, only this door closes.

When unlocked, i turn the key left 90 degrees in the trunk, all door locks.

When locked from the drivers door, i try to unlock from passengers door, nothing happens, i can turn the key about 45degrees to the left, but none of the doors opens.

When locked from the drivers door, i try to unlock from the trunk, all locks opens.

When locked from the drivers door, i try to unlock from the drivers door, all locks opens.

It seems like the passenger door actuator is the problem, but it still obeys the commands sent from the drivers door, it seem like it cant send signal to GM module to lock all other doors. It only locks its own lock when i turn the key. Could it be a oneway wiring problem from the passenger lock actuator to the GM module?

Or maybe its the drivers door that is cracked. If i close from the trunk, all seems OK, except i cant double lock from the trunk..