Originally Posted by deutsch100

Funny, but I embarassingly did this in my last E-Class. Parked the car with my Mom and my son...and we went shopping (for over 2 hours). Thank G-d the car was not stolen. When I got back to the car, and was strapping my son in his car seat, I could not understand why there was so much heat generating from under the car. Uhhhh, well because bonehead/idiot me left it running for over 2 hours!!! I felt so stupid. Comfort Access/Keyless-Go (MBZ lingo) is great, but one does have to remember to turn the car off!!! Needles to say, I have NEVER done this again!!