Why won't the trunk open? Does the key turn?
Sometimes this time of year the lock gets all messed up with salt,
just squirt lots of alcohol in there (even hand cleaning gel on
the key has beenknown to work). It is supposed tobe lubricated with
In a pinch spray silicone will free it up (but not for long).
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Have you verified that the trunk hasn't been manually locked with the Master
If I remember correctly (1991 300E), the Master key is rectangular and the
Valet key is oval. If someone locked the trunk with the Master key, only
the Master key will open it up. The Valet key will open the driver's door
and start the car, but won't open the glove compartment or the trunk, if
they were previously locked with the Master key. Likewise, the remote trunk
release on the console appears not to work if the trunk has been manually
locked with the Master key.
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