After locating the Battery hiding under a black rectangular plastic box with 'Air Conditioner' on it (it looks like an air filter to me) I am unable to fully unclip it to gain access to the Battery terminals.
It is held in place by 3 'pull & grab' retainers. The outer 2 undo easily. The center clip fouls the bodywork and refuses to exit the gap, thereby holding the entire device in place.
Help - I can't even check the Battery on this MB.
The spark plugs look very difficult to access too. Is there a more owner-unfriendly car on sale these days?
David