Question about 2003 BMW 330

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How to replace jammed ignition lock cylinder

I had a sticky ignition cyliner and this weekend and the tumblers got completely jammed. The key goes in but doesn't turn at all. Not even one click!!! So I can't use the pin insertion techniques. I have been searching the web for 4 days and at this stage I know I have only one of two solutions: to drill a small hole where the entry for the pin should be if the key would've turned, then use a pin to remove it; or drill straight through the center of cylinder to destroy the lock tumblers and then turn it to line up with the pin hole, and use the classic method to remove it. Before I attemp either, I need to know if anyone tried them and which one will work better (detail please) or will it work at all? I also just bought the Bentley service manual but they don't offer a solution to my problem.Btw, I ordered a new lock cylinder from dealer so I don't care if I ruin the old one. Help please.

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  • BMW330CI Sep 22, 2008

    Nevermind. I solved it. For those who face the same problem, here is what I did. I called a locksmith and signed a liability release form for him to even touch the car. I removed the steering covers and the EWS electric ring to clear the way to the mechanical key lock cylinder. I also unplugged the ignition switch wires and removed the airbag fuse just in case. The locksmith used a flat screwdriver with square shaft and clamped it with pliers, then he turned it back and forth till it turned to position II (Run position). He then just put a paper clip and released the cyliner. It was as simple as it sounds. We put the new keyed cyliner in and then the ring and plugged all wires and fuses, and the car started... I was so relieved. No drillng or worse, replacing the whole steering column as the dealer wanted to do and charge me over a$600. I put my solution here as I wished someone has shared there's ans saved me a week of agony.



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I had a jammed vauxhall ignition and used a mobile auto locksmith

Posted on Jul 03, 2009

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SOURCE: How to replace jammed ignition lock cylinder

If the lock is completely frozen, you will need to replace the lock housing. The housing has come apart inside. Does your manual give instruction on how to replace the ignition lock housing? Make sure you ask the dealer for new break away bolts for the new housing.

Posted on Mar 09, 2009

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Key wont turn pass acc it locks how can i fix


Ignition key cylinder tumblers are worn out!
Time to replace the cylinder.
Help prevent this from happening again by lightening your key ring load. A heavy key ring puts constant pressure on the lock tumblers and wears them down to eventually deform and prevent the tumbler cylinder from turning.
Most people employ the philosophy, "if it jams, just force it", which bends the weakened lock tumblers and hastens destructive wear.

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I am having this same problem, my key fits but will not turn. It's my understanding that either your lock cylinder probably needs replaced because your key is worn down and the tumblers will no longer read your key or you have a faulty ignition switch which is probably the issues if this problem has been intermitent for you.
Here is some advice I found on other sites:
This is a very common problem with vehicles these days. The lock is not reading the key so is will not allow it to turn.
Here is something that works more often than not. At this point you may need a new lock cylinder anyway so damaging the old one is not doing any more damage. Spray some WD-40 into the lock where the key goes. Then, with the ball end of a ball peen hammer, tap the chrome part of the lock cylinder (the face where the key goes in.) What you are trying to do is loosen the tumbler inside so they drop down and read the key. Sometimes they get stuck.
Only hit it as hard as you would if your thumb was in the way. We're not trying to dent it or break anything, just jar it. Then try the key once again.
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Generally this happens when you turn your car off with the wheels cut hard in either direction. You can generally remedy this problem by "jiggling" the steering wheel right and left while attempting to turn the key.
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much like you describe. Most Chrysler dealer parts departments stock the repair kits for these, and can code the new cylinder to match your old ignition key if desired. this really isn't a job you want to attempt out in the driveway; there are a lot of little pieces involved in making this repair. I would suggest fiddling with it to see if you can get it to start one last time, and driving it to your local repair garage; the repair usually takes about an hour and isn't terribly expensive.


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How to replace jammed ignition lock cylinder


If the lock is completely frozen, you will need to replace the lock housing. The housing has come apart inside. Does your manual give instruction on how to replace the ignition lock housing? Make sure you ask the dealer for new break away bolts for the new housing.

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