I am still trying to track down a baffling noise that one tech has said is a rod knock. The 300D has 117k miles and has had regular service by the M-B dealer where it was purchased. I am the second owner having purchased the car at 116k.
I have now driven the car 1,500 miles half of it on Interstates. Last weekend I did about five miles at 95mph. The noise hasn't changed the oil pressure still pegs above 3 bar at speed and just below 2 at idle.
I keep thinking that if this was a rod bearing it would have gotten much worse by now.
So what could it be? I want to check the trans flex plate but I don't know how to access it. Any other ideas?
Oliver