Thankyou for all the views, likes and comments. If you're looking into this for your own van please do your own research, a quick Google of 'om651 oil pressure issue' will bring up a lot of info from other owners.
This is news to me, I've never seen or replaced one of these and I worked for mercedes for 15 years. Still work on them now self employed but yeah never seen this ever.
@Dbdiagnosticsltd it was new to me too but I've seen it mentioned a few times on the owners forums/Facebook pages. If a £20 plug helps prolong the life of the engine I'm all for it.
@MJF85 in all fairness I'm on two pages on Facebook and I've never seen it mentioned on either of them, I have a 2015 sprinter on 230k no issues out of the normal. But I know these engines with regular servicing will do 500k no issue
@Dbdiagnosticsltd forums.mbclub.co.uk/threads/om651-oil-pressure-valve.295463/ sprinter-source.com/forums/index.php?threads/96421/ Don't think it's that common but it's an easy enough job to fit a new one. Surprises me that there's no oil pressure sensor on them.
@MJF85 I'm not on those forums only Facebook ones, sprinters dating back to 2000 year didn't have oil pressure sensors. Only thing on the commercial side that had oil pressure sensors was the trucks, although now the 907 chassis with the om654 engine does have oil pressure sensors.
wow thats and awesome video, is it possible you could tell me how to find info of the replacemente plug? is there a recall pdf or something? In the training course i did they dont even mention the valve.
Thankyou. I found this through my own research, I haven't found any mercedes documentation on it just forum and owner group chats. It was never a recall as far as I can see.
@bornasns wish I could tell, these engines don't have oil pressure sensors and I don't have a gauge to plumb into it. The oil pump is designed to run at 4.7bar with a pressure relief valve set at 10bar.
Thankyou for all the views, likes and comments.
If you're looking into this for your own van please do your own research, a quick Google of 'om651 oil pressure issue' will bring up a lot of info from other owners.
This is news to me, I've never seen or replaced one of these and I worked for mercedes for 15 years. Still work on them now self employed but yeah never seen this ever.
@Dbdiagnosticsltd it was new to me too but I've seen it mentioned a few times on the owners forums/Facebook pages. If a £20 plug helps prolong the life of the engine I'm all for it.
@MJF85 in all fairness I'm on two pages on Facebook and I've never seen it mentioned on either of them, I have a 2015 sprinter on 230k no issues out of the normal. But I know these engines with regular servicing will do 500k no issue
@Dbdiagnosticsltd forums.mbclub.co.uk/threads/om651-oil-pressure-valve.295463/
sprinter-source.com/forums/index.php?threads/96421/
Don't think it's that common but it's an easy enough job to fit a new one. Surprises me that there's no oil pressure sensor on them.
@MJF85 I'm not on those forums only Facebook ones, sprinters dating back to 2000 year didn't have oil pressure sensors.
Only thing on the commercial side that had oil pressure sensors was the trucks, although now the 907 chassis with the om654 engine does have oil pressure sensors.
wow thats and awesome video, is it possible you could tell me how to find info of the replacemente plug? is there a recall pdf or something? In the training course i did they dont even mention the valve.
Thankyou. I found this through my own research, I haven't found any mercedes documentation on it just forum and owner group chats. It was never a recall as far as I can see.
Do you how oil pressure is regulated? Since theres no oil pressure solenoid?
I mean in the new ones that comes with a plug instead of the solenoid. Does the pressure remains constant?
@Mientras_Tanto yes, it remains at the pressure the oil pump is producing rather than being reduced through the solenoid.
@Mientras_Tanto just like any standard oil pump, there will be a pressure relief valve in the oil pump to prevent any over pressurising
And what pressure do you have in the engine now?
@bornasns wish I could tell, these engines don't have oil pressure sensors and I don't have a gauge to plumb into it. The oil pump is designed to run at 4.7bar with a pressure relief valve set at 10bar.