taking this opportunity to quickly intorduce myself.
Well I'm actually a German guy who just recently reallocated to Switzerland since I'm working here in a VSSM/RMO for Cadillac/Chevy Performance.
I'm a Product Engineer, that loves to go offroading and fiddle on technical solutions...
last Saturday I changed the antifreeze. I don't know why, but for change I've selected Liqui Moly GTL-11. I saw "MB 325.0/325.2" (it's crucial for CRD engines from MB) on its label and bought 3 canisters.
Later that day I've checked...
New to the Commander almost 5 months.
I have a 2007 3.0 CRD at 87000KM (54000 Miles).
On the highway when I am at or above 130 km/h (80 miles/h) the commander starts making vibrations that you feel the car is not happy. When I reduce to 120 Km/h ( 74 miles/h) it is smooth again...