I recently have a strange problem with my W126 380SEL. When the car go down hill for a long distance (3 Kms or more), once the car is level out, it gives a lot (I mean a lot) of white smoke for only about 10 seconds.
I strongly believe it is coolant burning because the coolent level will drop after that.
I also find soem coolent stain near the thermostat.
Am I up for a big repair bill? Please help.