Alarm going off for no reason

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Ernie Willson - 15 Jul 2009 19:24 GMT

If I park and lock my 1999 C280, often the alarm will go off for no
apparent reason. The alarm will trigger from anytime 15 minutes after
locking to about one hour after locking. It only sounds for about 15
seconds and then shuts off. After about 1/2 hour it goes off again. Is
there a known cause for this type of behavior?

Thanks,
EJ in NJ

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Tiger - 15 Jul 2009 20:32 GMT

I thought they fixed it... it was a typical problem for the older MB...
mainly the W126, but not the 202 that I know of. It is usually the switch on
the driver door that does that but that was during the key phase of MB... I
am not sure if 99 is remote or not.

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Roland Franzius - 15 Jul 2009 21:02 GMT

Ernie Willson schrieb:

> If I park and lock my 1999 C280, often the alarm will go off for no
> apparent reason. The alarm will trigger from anytime 15 minutes after
> locking to about one hour after locking. It only sounds for about 15
> seconds and then shuts off. After about 1/2 hour it goes off again. Is
> there a known cause for this type of behavior?

Let your dealer log in to the computer and switch off the alarm from the
list of activated devices. The alarm is completely useless.

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Roland Franzius

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