Please don't judge me but if my car is very frosted I like to lock it with the engine running while I eat my cereal. (I have another car in my garage). This means visibility is perfect as I drive off. My last car was a 5 series and I could simply hop in, start the car then get out and lock it. This morning, I started my W213 but found it wouldn't lock from the outside. I have keyless entry if it helps. Can anyone suggest a workaround that will allow me to lock the car from the outside with the engine running?