You can put the big O-ring that comes with the oil filter (Mann HU821X) inside the vaccum pump as the aftermarket seal fails and this is a cheaper option, I haven't tried it yet but I know a few people who have and it worked. Also replace the metal gasket (MER-6420160280) where the pump mounts to the engine while you're at it as that will eventually leak as well. People have done it on 2012-2015 Ml, GL, R class with OM642 engine but I think it should work on all OM642 applications regardless of their model years. Remember to clean it really well like using a brake cleaner and lint free cloth before installing the gaskets to prevent any future leaks, and do it at your own risk as the vaccum is created for brakes!
Phenomenal work!
Thank you!
You can put the big O-ring that comes with the oil filter (Mann HU821X) inside the vaccum pump as the aftermarket seal fails and this is a cheaper option, I haven't tried it yet but I know a few people who have and it worked. Also replace the metal gasket (MER-6420160280) where the pump mounts to the engine while you're at it as that will eventually leak as well. People have done it on 2012-2015 Ml, GL, R class with OM642 engine but I think it should work on all OM642 applications regardless of their model years.
Remember to clean it really well like using a brake cleaner and lint free cloth before installing the gaskets to prevent any future leaks, and do it at your own risk as the vaccum is created for brakes!
How did you take off that intake pipe ?
What’s the website exactly
Where are you located?
Bellingham WA