I'll keep an eye/ear on it and if it looks like it's getting worse I'll take it in.
One other troubling thought, not to start a flamer, Steve got me thinking about my oil. This noisy valve just started making noise after my most recent oil change.
Fact to the matter is that I've been using Syntec in the ML since it was a baby. With the birth of the CLK I gave them both a fresh batch of Mobil-1. I did it based on this forums opinion of Mobil-1 and the fact my next oil change will be by the dealer and they will use Mobil-1.
It would be interesting to see if changing the oil back to Syntec quieted the motor down. The CLK's 943 is not making any noise but for all I know it's only ever had Mobil-1.
Ed "Don't Benz's just feel better..."
2000 ML430 Skyview "The Mel"
2000 CLK430 Cab "The Cab"
85 300D Turbo "The Diesel"
"One should as a rule respect public opinion in so far as is necessary to
avoid starvation and to keep out of prison, but anything that goes beyond
this is voluntary submission to an unnecessary tyranny, and is likely to
interfere with happiness in all kinds of ways."