I'm due, no wait ... the 300SE is due for a coolant flush and change next week. It has been almost a year since the last change.
Might hang on to see what comes around. Am still trying to make a choice between Redline (as recommended by Merv) or MB coolant.
How many times did you say I must repeat the flush process?
126 tailed by a 203, 129 leading the pack.