One problem related to owners/service manual has been reported for the 2010 Mercedes Benz E Class. The most recently reported issues are listed below.
The trunk release feature on my 2010 e-class mercedes-benz key will engage in my pocket without actually pressing the button occasionally. This has happened multiple times (approximately 10 times) in the 4 month period I have owned the vehicle. The most recent occasion resulted in everything in my trunk being stolen in the middle of the night. I suspect it is the flawed/poor design on the key as I have never had this problem with any other trunk release function on any of my other cars. Since the event, I have resorted to the manual lock feature that effectively disables the keyless entry function.