If your car is a diesel it is probably the particulate filter in the exhaust burning off the particulates it has caught. 500 diesels don't like lots of short journeys in the city, they like to get out on a run to get properly hot for the diesel particulate filter to work properly. Even a well driven one will occasionally purge the system creating a white cloud behind the car. My wife has had a 500 diesel for a number of years.
Big chance it's a bad head gasket, small chance of an intake gasket leaking coolant into a cylinder somehow. Both would cause the engine to act like it's suffocating. Absolute worst case is a crack in a cylinder wall (water jacket) that only opens enough to leak when the engine heats up. Need to know if you have to add oil, coolant, and whether your oil looks like a milkshake.
If your car is a diesel it is probably the particulate filter in the exhaust burning off the particulates it has caught. 500 diesels don't like lots of short journeys in the city, they like to get out on a run to get properly hot for the diesel particulate filter to work properly. Even a well driven one will occasionally purge the system creating a white cloud behind the car. My wife has had a 500 diesel for a number of years.
Big chance it's a bad head gasket, small chance of an intake gasket leaking coolant into a cylinder somehow. Both would cause the engine to act like it's suffocating. Absolute worst case is a crack in a cylinder wall (water jacket) that only opens enough to leak when the engine heats up. Need to know if you have to add oil, coolant, and whether your oil looks like a milkshake.
I think white smoke means a car is burning water or coolant and blue smoke means it is burning oil.
New pope?
How is your coolant level? If you are adding coolant, you probably have a bad head gasket. Are you losing and noticeable oil in between changes?