2009 C 70 door open light/door unlatching/coolant leak
 

I have a 2009 C70 and when I hit a bump the door warning light would turn on, I saw some folks recommend lubricating the latches and so far its worked ( it makes sense )

Yesterday I found a large coolant leak under the car so I plan on refilling the reservoir and running the engine to find the source, Ive seen posts regarding the cap and/or reservoir leaking and will let you know what I find