Key stuck in ignition - Mercedes-Benz Forum

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post #1 of 20 (permalink) Old 04-13-2010, 12:16 PM Thread Starter
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Post Key stuck in ignition

Hi all. I own a mercedes w202 elegance C280. The electronic key is stuck in the ignition and i cannot get it out. Any solutions PLEASE!!!!!!!
The vehicle is in park and my foot off the brake but the key will not release.
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post #2 of 20 (permalink) Old 04-13-2010, 03:21 PM
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I dont know if I had this issue with a Mercedes but in a car I had to force the key in and then turn it to take out the key.. It may help or may not but hope it does.. Otherwise you may need to open up the whole steering wheel to see whats jamming the key!
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post #3 of 20 (permalink) Old 04-13-2010, 03:21 PM
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what YEAR ?
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post #4 of 20 (permalink) Old 04-13-2010, 03:35 PM
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I believe they are 1994-2000 regs but having not owned one of these I dont know how the ignition functions but I believe keys are not fobs
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post #5 of 20 (permalink) Old 04-14-2010, 04:41 AM Thread Starter
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2000 model w202 c280
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post #6 of 20 (permalink) Old 04-14-2010, 04:46 AM Thread Starter
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Key stuck in ignition

Thanks for all the welcomes and replies. Still trying all advise received. Will let you guys know how it goes.
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post #7 of 20 (permalink) Old 04-14-2010, 02:06 PM
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Does the ignition key rotate from posn 0 to posn 1, 2 & 3? Can you start the engine and drive the car?

There is a mechanism called the shift lock that is there to lock the shift lever in P, the ignition key and the transmission. Maybe that needs adjustment.

The stop lamp switch output is also a required input to the DAS (drive authorisation system) Are you sure that this is OK?

The item that locks the key in place (except in P) is called the ignition lock. This uses a spring, cam and a locking valve to hold the key, and it is connected by a cable to the gear shift assembly. Maybe a problem there?
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post #8 of 20 (permalink) Old 04-14-2010, 06:22 PM
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Are you 100% sure the car is all the way in park? The key will not release if the car is not in park. This could be a shift lock malfunction if the car is actually in park.
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post #9 of 20 (permalink) Old 04-14-2010, 09:24 PM
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Ditto on checking the park. I think some cars also require pushing the brake pedal.
Check the manual for proper procedure.
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post #10 of 20 (permalink) Old 04-14-2010, 10:25 PM
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2000 ?

Quote:
Originally Posted by Gibran View Post
2000 model w202 c280
All my reference info says this was produced through model year 1999, but that database does have occasional issues with year cut-off.

The 1999 uses a 2 track key, and is typical for needing replacement of lock at the major service at or about 100K or so miles.

That said, you MAY have a issue that is not mechanical failure, but external influences:

For Situations where the key will enter and remove, just will not turn:

1. if you roll into curb, then turn off car... this bad habit causes undue pressure into the steering system, and to the locking bolt.

A. Put foot on brake, hold it there while....

B. TURNING STEERING WHEEL INTO the pressure, HARD...then, without letting go of wheel

C. Try turning key.


2. Try a key that does not have excessive wear, if yours is ground up. A copy may not do.. must be cut by code, either by ordering from dealer, or by locksmith decoding old key, then cutting fresh on a CNC machine.

3. If this makes no sense, because it seems I did not read your question carefully, I posted the above because it is a related issue, and it may have haooened prior to getting stuck IN the lock.

So, if the key will not REMOVE from lock, but starts, shuts off, etc....

4. Be sure you got no doodads, leighs, ornaments or other crap between shifter and dash.... obstructions will intefere with the shift interlock. There MAY be a shift interlock OVERIDE ( button to press, or place to poke in a #2 Tyconderoga pencil, to allow shifting and thus, removal of key.

A. Call dealer to find out
B. Post question on Craigslist Rant N Rave
C. Crack open the Mercedes Manuals that came with car... they should have any such overide explained..... beware of manuals that are vague, My Sprinter manuals are vague, scattered and self-contradictory
D. Try a few things:

4D1 GENTLY goose the shift lever toward park with 5 ft lb of torque... no torque measuring tools needed, just a little pressure by hand, and while applying this pressure, see if key will turn a little more to full CCW removal position

4D2. Check for shift interlock release, already mentioned above.... it will overcome a failed interlock system.

4D3. Remove ignition lock, and see if key will turn all the way off and remove in your hand. If you can not make the problem happen 8in-hand, it is in the lock bolt housing, another column component, shift interlock.

PLEASE do followup with the end result.

If NONE of the above work, you will likely want to replace the lock cylinder and locking bolt housing. But let the diagnosis be done by mechanic.... we are just the peanut gallery!

Last edited by Locksmithy; 04-14-2010 at 10:33 PM. Reason: clarification
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