TSB LI105.10-P-056435 Check Valve PN
New member here
Recently bought my frist MB , 2012 ML350. Being a bit old am working on few things ( Tranmission Oil, wheel bearings, etc...). The cold start rattle noise is really bugging me and I'm planning to DIY the TSB myself. My question: How do I figure out the right PN for thr check valves ? Seems like there are 2 different types ( flush surface and stepped bore apparently ? ). I can't find any reference that shows me how to find out the correct one for my car. I hope I don't have to open up the car first to find out lol.




New member here
Recently bought my frist MB , 2012 ML350. Being a bit old am working on few things ( Tranmission Oil, wheel bearings, etc...). The cold start rattle noise is really bugging me and I'm planning to DIY the TSB myself. My question: How do I figure out the right PN for thr check valves ? Seems like there are 2 different types ( flush surface and stepped bore apparently ? ). I can't find any reference that shows me how to find out the correct one for my car. I hope I don't have to open up the car first to find out lol.plugin your car year/model...
they sell a job kit that includes everything necessary.
really convenient!

Last edited by CaliBenzDriver; Oct 30, 2024 at 06:40 PM.
I'd buy the other valves too just in case but I live in Canada. Return might be a pain....




Startup rattling may be associated with... :
VVT Gear, chain tensioner, check valve or low oil pressure
...meaning not 100% check-valve.
I think being a 2012 with 112,000 km, the most likely case is that I don't have the check valve in the first place. Its only upon morning cold start, no oil pressure warning and oil level is stable. Is there a way to figure out if it's something else other than the check valve and the timing tensioner?




I think being a 2012 with 112,000 km, the most likely case is that I don't have the check valve in the first place. Its only upon morning cold start, no oil pressure warning and oil level is stable. Is there a way to figure out if it's something else other than the check valve and the timing tensioner?



