The M273 engine isn't that common, they didn't sell that many of them although it was basically just the V8 version of the V6 engine which was much more common. With that said, this is not a common problem, haven't really heard much mention of this in the E class forums. It's probably why you see more mention of it in the C class forums, they sold a lot more of those and those reference the M272 engine.60.000 miles and it knocks. Yep, German cars are great. I would add something like Cerrocoat or some other slippery stuff to help keep it going.
What in the VOA exactly do you see that makes it not "the best thing to do"?I didn’t know it was a common issue. My car, 08 E350 with a M272 has the same issue, though I am at a tad over 180k miles. I’ve had it for about a year now and thought that it was lifter noise or that it was just me hearing things. The owner before me used Motul 15W-50 for at least 3 oil changes as recommended by the shop he serviced it at and the first thing I did was to put Mobil 0W-40 in it. I change it every 7500 miles because the OCI in the car is set for 15000 for whatever reason. Since I though it was lifter noise I purchased Liqui Moly Leichtlauf High Tech 5W-40 to give it a try but looking at VOAs it doesn’t seem like the best thing to do. Any suggestions?
Ahh I see. You question the ability of Liqui Moly to properly formulate an oil to achieve Mercedes-Benz 229.5 approval.The lack of molybdenum in it. I will be testing it out anyways though since I have already purchased it. Maybe I’ll be proven wrong. I am in no regard an expert in the field.
Yes, its all fun and games until somebody hits your beloved car, I still miss my 2.5 SEL Jetta!Price always go down over time but I suppose it will reach a point where they will start to go up again. Plus all it takes is one idiot on the road to smash your ride. Probably premature to buy an engine although I suppose you could always turn it into a table stand.