PeachParts Mercedes-Benz Forum - View Single Post - Considering a 2007 ML320 CDI, known problems ? advice ?

GregMN · #24 02-14-2014, 10:01 AM

Thank you all for your concern. I was kind of expecting that...

I have communicated with a member that has 50k + on WVO on a 2005 CDI. There are many common rail diesel engines that have been running on WVO for multiple 100's of thousands of miles. Earlier Sprinter vans have been running WVO for years as have been VW TDI's, all at 20,000 + PSI. And, yes, the key to longevity is the quality of the fuel and the operator of the system (don't run it cold, completely purge the system before shut down).

Back to the ML...
It has had the turbo seals replaced and the servomotor replaced.

He is not sure if the oil cooler seals have been replaced.
Does anyone know if the failure of the seals is evident by visual inspection ?
What fluid leaks ? Oil, coolant, or both ? Can the failure cause a mixing of the oil into the coolant or the coolant into the oil ?

Thanks,
Greg