Random beeps (lock accoustics?) all night while parked
Thread Starter
Newbie
Joined: Jun 2018
Posts: 3
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2013 C300 Sport
Random beeps (lock accoustics?) all night while parked
This has been going on for a couple months, my 2013 C300 just randomly beeps throughout the night, I've changed the batteries in both key fobs and replaced the car battery itself, yet the mystery beeping continues. I can't seem to find a single case of this reported anywhere else on the internet. What am I missing?
I should have added, I have nothing aftermarket installed on the car, just standard alarm, radio, everything. (boring, I know)
I should have added, I have nothing aftermarket installed on the car, just standard alarm, radio, everything. (boring, I know)
Last edited by IanM_; Dec 4, 2020 at 08:57 PM.
Super Member
Joined: Feb 2007
Posts: 613
Likes: 296
From: Republic of Texas
W203 W212 W211 R53MCS
Did you get any of the keys wet?? Try taking the batteries out of the key fob and leaving them out. If the issue stops, then one of your keys is sending random signals. If it doesn't stop the issue, then check for water ingression in passenger compartment.
