c240 Central locking - Mercedes-Benz Forum

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post #1 of 5 (permalink) Old 04-30-2012, 04:47 PM Thread Starter
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c240 Central locking

Is there someway that a person can mimic the frequency of a c240 2001 benz. At work.. When am at work the trunk opens and then when i change the locking system to individual on the remote the driver door unlocks but the trunk still opens... So now I locked the trunk with the Mechanical key I will monitor this.. has anyone seen this issue before where the doors r being uncooked or the trunk opens.... whilst in park and the engine is off no key in the ignition..

Out of all days this happened today whilst it rained all day good thing i took my mac out of the trunk
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post #2 of 5 (permalink) Old 05-01-2012, 10:26 AM
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You could have water backing under the wiper motor area that will fill with water if the drains are clogged which will then fill your fusebox with water, this will cause the front Sam to do some crazy things, might be worth checking.
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post #3 of 5 (permalink) Old 05-01-2012, 03:39 PM Thread Starter
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u know i will look into that we had allot of rain here this weekend
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post #4 of 5 (permalink) Old 05-01-2012, 06:59 PM Thread Starter
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is there a way to disable it for the night until in the morning
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post #5 of 5 (permalink) Old 05-02-2012, 03:10 AM
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Can you (temporarily) release the (2?) springs that flip up the trunk lid when the lock is released. Then even if the trunk lock pops open, your trunk should stay shut.

Just why this is happening has stumped me....

You might try removing fuse f8 from the trunk fusebox, and see what happens. This will take power from the left/right window antenna amplifiers. You might also lose the radio signal -not sure about that. But it should stop a spurious external signal triggering the CL system.
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