2018 Mercedes W213 E300 needs new engine @ 23K Miles

Similar with the Mercedes cam position sensor and cam solenoids, which in some engines on some models are prone to leakage, which sends oil through the wire harness and into the engine ECU whereby the ECU dies the death. In that situation there seems to be cam position sensor and cam solenoid part numbers where no one has reported an oil leak/harness wicking problem.
With the 2015-2018 range of piston problems reported on this site on the 2.0L M274, it's early to say what pattern exists, if any.
Similar with the Mercedes cam position sensor and cam solenoids, which in some engines on some models are prone to leakage, which sends oil through the wire harness and into the engine ECU whereby the ECU dies the death. In that situation there seems to be cam position sensor and cam solenoid part numbers where no one has reported an oil leak/harness wicking problem.
With the 2015-2018 range of piston problems reported on this site on the 2.0L M274, it's early to say what pattern exists, if any.
The Best of Mercedes & AMG
Yeah, those two Engines are the ones to stay away from. The 535 has the twin-turbo V6 and the 740 has the V8. The only thing I had to do on the E46 was the oil filter housing gasket and the cooling system overhaul (water pump thermostat and all the coolant hoses). Other than that and normal suspension things going out, never had an issue. WIth the 328 N52, the only thing I've done with the 72k miles I've driven it was the oil filter housing gasket and the valve cover gasket. I do the majority of the maintenance and repairs on my cars myself. Saves me a bunch of money. The best engines and most reliable engines BMW makes are the inline 6.. The V8 and V10, suck.
Last edited by moosaud1998; Nov 1, 2020 at 09:34 PM.








Last edited by ua549; Nov 2, 2020 at 08:12 AM.
For us, no problems with the B48 so far. Based on what I am seeing on bimmerpost, I will be surprised if anything major occurs, that is not related to high-ish mileage.
https://en.wikipedia.org/wiki/Merced...70/M274_engine
2017 GLC 300 4MATIC
WDC0G4KB3HF201444
Engine M274.920
Piston A2740300417 then A2740300900
Change points noted Oct 2015, Mar 2017, Feb 2018
2018 E 300 4MATIC
WDDZF4KBXJA337353
Engine M274.920
Piston A2740300900, no change history
2015 C 300 4MATIC
55SWF4KB5FU075865
Engine M274.920
Piston A2740300417 then A2740300900
Change points noted Oct 2015, Mar 2017, Feb 2018
2020 GLE 350 4MATIC
No VIN
Engine M264.920
Piston A2640301800 and A2640301700, no change history




I personally don't think this happens a lot. I have not heard anyone with C or E with 4 pot having any issues in Australia at least.
If this was a very apparent problem, it will certainly be in the media for sure.
I think the more problematic system is the Air suspension. I have heard many having issues with this. Especially at South East Asia.






