Locks unlocking themselves??? HELP!!!

[bman10]

Hey guys I have a 94 525iA. I do not have a remote for my car so I lock the doors with my key. Lately since it has been so cold in VA (its cold here for us) when i lock my doors with the key and turn it back and take the key out the locks automotically unlock. I lock them a second time and it stays locked. I thought maybe the lock cylinder maybe sticking or it was just cold and making it stick. Has anybody had this problem before? Any ideas or help would be great thank you.

[shelbyz4u2nv]

its most likely a bad or sticking door lock...

[DannyH4]

The same happens when I lock my doors.

[bman10]

thank you very much... ill pull her in the shop tonight and squeeze some fluid in the lock

[bman10]

ok so i sprayed some lock lube in all my locks and the problem has disappeard!!!!!!!

[justinp95]

I sprayed some down the hole and all my problems began, lol.

[fkong777]

I have replaced my striker plate to solve such a problem. The sensor may wear on the plate. My car was unlock-able when it was wet out.

[Ace_of_Spades]

funny thread title

[ruftek]

Yes, the door locks on some E34's do tend to have a "mind" of their own. I'm currently having the same issue with my door locks and it seems from the research I have done it could be do to many different things including;

faulty general module (gm)
faulty trunk wiring
faulty door lock microswitch and or door lock actuator
faulty or dirty fusible link
driver door striker plate

I sprayed my door locks with white lithium grease and it seems to proliferate the problem and now my door locks won't stay locked longer than one minute. I'm going to take it in next week because it's annoying that I cannot secure my vehicle. I just got a used spare GM in the mail in case it is the cause? Good luck.

[Redfive]

Its not the GM, since I replaced this on my car and did not solve the problem.

[gtranspo]

check your fuses under the rear seat. this fixed mine...

[Winkie]

check your fuses under the rear seat. this fixed mine...

I am going to try this because I am losted I have taken the drivers door apart and checked everything all looked ok my car locks then opens again if i close the door gently while holding two hands on it it sometime locks???????????

[upallnight]

See this thread

http://forums.bimmerforums.com/forum...d.php?t=667075

[Gregs///M]

lol, I love how the threads link each other.

All you guys with the door unlock problems, check your door triggers or dome light triggers at each door. The pin switch might have failed, which is a common problem on most cars of our age. This would trick the central locking system to think one of the doors is still open.

[yeewiz]

I say check the fuses near the GM under the rear seat. For me it was fuse #31, central locking. The reason for the blown fuse may still exist, and for me that was the infamous broken wires in the wire bundle at the driver side trunk hinge.

[Gazman]

Mine do the exact same problem as the OP

Kinda scared to do anything ... i dont mind turning the key twice. Will figure it out one day

[yeewiz]

dude, just get off the stick and get that rear seat off and check for a blown fuse! what's to get scared about?

[mikemxbike4]

It is a broken wire on the left side of your trunk arm(where all the wires run behind plastic cover).I had the same exact problem.

1.Take the plastic cover off
2.Undo the electrical tape covering the wires.
3.You will find 1 or more broken wires that you will need to fix.

Almost all e34's have that problem.

Mine had 5(!) wires that wore through the insulation and then broke.

[upallnight]

lol, I love how the threads link each other.

All you guys with the door unlock problems, check your door triggers or dome light triggers at each door. The pin switch might have failed, which is a common problem on most cars of our age. This would trick the central locking system to think one of the doors is still open.

For people who taken Fortran they will know what a do loop is.

[Winkie]

my door locking problem is fixed it was a switch pin on the door pilar
temp fix hot melt glue works great locks every time and interior light stays off when driving

[RobSPG]

My first post, thought I would share how I fixed this issue.
I had the identical problem in my '94 530i.
The problem was 12V+ continuous wiring to the yellow connector attached to the passenger door handle micro-switch had broken, and shorted on the chassis.
This popped fuse #33 under the seat. Fixed the broken wire and replaced the fuse, now everything works perfect.
There were/are 4 fuses in total for the power lock system, all under the back seat.

[shogun]

If the locks goes up again it is a unconform signal the GM is receiving from the locking system, here the info about Asynchronous Position:
SUBJECT: New General Modules (GM)- MODELS: (E32), 5 Series (E34) - Vehicles produced 9/91 and later
Situation: New general modules have been used in production since September 1991 in all E32 and E34 models. The software has been completely revised (details of these revisions are found in the attachment to this Service Information Bulletin). Part numbers have been changed to reflect these revisions, as listed below, as of September 1991. Model Part Number
E32 61 35 8 356 095,
E34-up to 61 35 8 356 095 9/91 production
E34-9/91 and later production 61 35 8 355 812
Note:
E34 vehicles produced 9/91 and later have different central locking system components from earlier E34 vehicles; therefore, P/N 61 35 8 355 812 is used only in E34 vehicles produced 9/91 and later, P/N 61 35 8 356 095 can be used in E34 vehicles produced prior to 9/91, and in all E32 vehicles. When the general module is connected to the vehicles electrical system, it will recognize (and store in memory) the vehicle configuration, such as:
- with/without power windows
- With/without power sunroof
- with/without wiper contact pressure control
- with/without headlight washers
Important Information
All general modules must be plugged in only after disconnecting the vehicle's battery. If the vehicle's battery is connected when the GM is installed, undefined signal contacts can cause an incorrect vehicle configuration to be stored, resulting in the impairment of one or more of the above-mentioned systems. If one or more of the GM functions are impaired in this matter, the GM can be "cleared" by disconnecting the vehicle's battery for at least ten seconds.
GM Function Changes E32/E34 (Beginning with 9/91 Production)
- Repeat and Time interlock for headlight washers:
· Time interlock: 3 minutes
· Headlight washing at fifth windshield washing after time interlock.
- Intensive washing pump operating time reduced from 3 to 2 seconds
- Minimum interval for intermittent wiping is programmable down to 2 seconds (previously 3 seconds)
- Increased wiper contact pressure during windshield washing cycle is now also provided during dry wiping portion of the cycle (previously only during washer pump operation).
- Previously, the GM would react to opposing signals (eg., an unlock signal while trying to lock, as with a defective microswitch) by carrying out the first command, then the opposing command (e.g., locking, followed immediately by unlocking).
Repeating the first command then results in carrying out that command (e.g., try to lock again, and locking is now carried out).
This function ("Asynchronous Position") is omitted in the new GM for all E32 models and E34 models prior to 9/91 (P/N 61358356095), and remains in the new GM for E34 models after 9/91 (P/N 61358355 812) only for central locking commands "lock" and "double-lock".
- After unlocking is performed due to crash sensor activation, the locking command is now reactivated by double-locking with the key from either the driver's or passenger's door.
- The "one-touch" operation of windows has been expanded to include all four windows in the opening direction. The driver's window still has "one-touch" operation in both opening and closing directions. Interruption of the "one-touch" feature of the driver's window in the closing direction is still accomplished by depressing any window switch (in any direction), or by depressing the sunroof switch in the "tilt" direction (provided the sunroof is not already in the "tilt" position). Interruption of the "one-touch" feature of the sunroof in the closing direction is still accomplished by depressing the sunroof switch (in any direction).
- The switch-off delay of the interior lights which occurs after entering the vehicle and closing the driver's door has been reduced from 20 seconds to 15 seconds.

[zkd]

just to top off the thread... mine had this problem, it turned out that fuse 33 under rear seat kept blow because of a short on the lock microswitch in the passenger door. that would produce the same effect. the only difference is that the door will not open again with the central locking only the drivers door will.

my 2 cents...