ColinHaydock
New Member
I own a 2015 E220 and I am having problems with the locking. When I get out off the car and press the button on the key to lock the car, the alarm makes a sound like the horn but the alarm does not set. Instead the indicator lights flash quickly and keep on flashing. If I press the locking button again on the key, the indicators flash 3 times (as they should) and the car is then locked.