I need some help here...I have an 87 300E with 160k and a bit of a problem. Upon first driving when cold, it has blown an enourmous amount of white smoke for about 3 or 4 seconds and then quit. It feels as if the car has low power while it is blowing th smoke (burning coolant I assume). Is this serious enough to get fixed now, as it has only blown smoke twice, about 6 months apart, but exact same characteristics. This has me confused as it does not blow smoke otherwise. Thanks for the help!