Keyless Go got wet, anything I can do?
Your key got wet. Take the battery out. Put the key in rice without the back on. Get as much of the board visible as possible and leave the key in rice for 24 hours. Put a new battery in and try it, should work.
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From: MA
2008 E350 4Matic, 2011 E350 4matic
Did you go swimming in fresh water or salt water? There are older threads about this out there. Rice is a basic method, silica gel packets are better but not ideal. You'd really want to take the key fob apart, there's threads and youtube videos about how to do it. You'd probably want to use electronic contact cleaner after taking the batteries out and spraying down the whole thing. If it was salt water, the salt will start corrosion and create shorts which the rice/silica gel doesn't really address. Even fresh water will have some minerals that can cause shorts. And if all that doesn't work, you'll have to go to the dealer to get a new key.
MBWorld Fanatic!

Joined: Feb 2014
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From: MA
2008 E350 4Matic, 2011 E350 4matic
There's also some electronics inside the key fob that doesn't come out when changing the battery. See the videos about changing the key shell, it's a bit more involved than just changing the battery.
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Update:
FYI....tried all of the above and the thing still won't work even with new batteries. So going to bite the bullet and get new one.
Wow...$475 for ONE new key with Keeless Go function. Expensive mistake.
FYI....tried all of the above and the thing still won't work even with new batteries. So going to bite the bullet and get new one.
Wow...$475 for ONE new key with Keeless Go function. Expensive mistake.
Last edited by Surfer69E500; Sep 29, 2015 at 01:15 PM.
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From: dmv
2009 E550 2000 Honda civic mash n' go




Now functions dont work. 

