Believe it or not.
#1
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2018 C300 4 Matic
Believe it or not.
Not sure this will ever help anyone, but, it might. Just purchased a 2014 E350 Sport. Found one key not working (would start the car/unlock the car, but, would not lock the car or open the trunk)- Mercedes would not cover the key under warranty - said that someone had spilled a liquid on it and caused some internal corrosion. While waiting for the selling dealer to get a replacement "board" for the key, I found the car trunk of my car open while the car was siitting in the garage. Several times. Thought I may have opened the car by pressing on the key in my pocket until I found the trunk open when the good key was laying on a counter inside the house. This never happened away from my garage.
Long story short - the bad key was ending signals at random times to the car. Trunk opening was stopped by removing the battery from the bad key.
Weird.
Long story short - the bad key was ending signals at random times to the car. Trunk opening was stopped by removing the battery from the bad key.
Weird.
The following 2 users liked this post by abqhudson:
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#2
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2014 E550-sold 😩
Key fob ghost. Maybe there is an extra key somewhere hidden in the trunk and is rejecting the trunk locking procedure and forcing it to open.
#3
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You have to use sufficient amounts of duct tape or other binding materials. It's very easy for adrenaline to power a panicking hostage into ripping off restraints.
Once they're free, simply pulling on the glow-in-the-dark trunk release frees them to escape from you.
The old school know how to properly tie knots. Join the Boy Scouts or purchase a good knot book...problem solved and you don't have to buy new keys or visit the dealership.
Once they're free, simply pulling on the glow-in-the-dark trunk release frees them to escape from you.
The old school know how to properly tie knots. Join the Boy Scouts or purchase a good knot book...problem solved and you don't have to buy new keys or visit the dealership.
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2008 E350 4Matic, 2011 E350 4matic
If it's not keyless go, I think you may be able to swap out the innards for another key with better buttons. I think it's a lot harder with keyless go. Otherwise I'd try cleaning it with some electrical contact cleaner, take the battery out, spray it all down and wait a few days for it to all dry out and then try it again. Or use the $100 off $200 mentioned somewhere else and get a new key.