Unreal how even high end Mercedes cars have such insane problems right out of the factory. My almost 20 Year old Diesel Volvo with 250.000 Kilometers ran most of its life on 0w30 changed every 25.000-30.000km because thats the factory service interval. And the engine is in perfect shape even when it was abused all of its life with horrible oil change intervals and oil that was too thin for the engine. I run it on the proper oil a diesel of this era needs which is 5w40 and I stick to ~10.000km intervals. The engine is now smoother and quieter than most new diesels. 5w40 massively improved vibration, valvetrain noise. HOW come they cant make a brand new engine not last a few years without major problems these days. Even more cringe is the fact that they design these engines for super thin 0w30 and 0w20 oils. These engines most likely have a valvetrain lubrication issue by design. No engine should wipe out a camshaft so early even on 0w30 and long oil change intervals.
Irrelevant, it was most likely following the 25-30k km servicing interval with an oil way too thin that got even thinner from the diesel diluting in it, not providing proper lubrication and creating wear on metal contacts that have no bearing and oil pressure system, like the cams and rockers.
Mercedes CamTronic Variable Valve Lift is on Exhaust Valves only. The worn camshaft here seems to be the Exhaust as it has the dual cam lobes and slip mechanism on the front. The other camshaft, on the fuel injector side with single lobes, seems not damaged. Since the cams are so close the extra noise from a worn one would be hard to define by listening. Is the problem oil starvation thru the Exhaust cam?
Dealer level? Ill give 100% you forgot to find all bearings from rockers cause each of them got 6 bearings small balls who drops out in the engine and oil system,they can be at the back of the engine or maybe in oil sump… Professionals dealers😀😀😀 next time make sure you know something about the problem
Unreal how even high end Mercedes cars have such insane problems right out of the factory.
My almost 20 Year old Diesel Volvo with 250.000 Kilometers ran most of its life on 0w30 changed every 25.000-30.000km because thats the factory service interval.
And the engine is in perfect shape even when it was abused all of its life with horrible oil change intervals and oil that was too thin for the engine.
I run it on the proper oil a diesel of this era needs which is 5w40 and I stick to ~10.000km intervals.
The engine is now smoother and quieter than most new diesels. 5w40 massively improved vibration, valvetrain noise.
HOW come they cant make a brand new engine not last a few years without major problems these days. Even more cringe is the fact that they design these engines for super thin 0w30 and 0w20 oils. These engines most likely have a valvetrain lubrication issue by design. No engine should wipe out a camshaft so early even on 0w30 and long oil change intervals.
Dude. They used the wrong oil. It's user error and also your Volvo is a POS.
How good would these engine be if oil change intervals were lower? Are there any more weak points of it?
Please reply, what was the mileage of the engine to cause such an issue??
Irrelevant, it was most likely following the 25-30k km servicing interval with an oil way too thin that got even thinner from the diesel diluting in it, not providing proper lubrication and creating wear on metal contacts that have no bearing and oil pressure system, like the cams and rockers.
@@em4703 cams contact surfaces looks also very narrow. 🤔
How big is milage?
Do you have a video of the noise ??
hi can you help me find the manual for the engine om656
Mercedes CamTronic Variable Valve Lift is on Exhaust Valves only. The worn camshaft here seems to be the Exhaust as it has the dual cam lobes and slip mechanism on the front. The other camshaft, on the fuel injector side with single lobes, seems not damaged. Since the cams are so close the extra noise from a worn one would be hard to define by listening. Is the problem oil starvation thru the Exhaust cam?
Мерседес уже не тот 😢
The OM656 should have oil with MB 229.52 spec.
Dealer level? Ill give 100% you forgot to find all bearings from rockers cause each of them got 6 bearings small balls who drops out in the engine and oil system,they can be at the back of the engine or maybe in oil sump… Professionals dealers😀😀😀 next time make sure you know something about the problem