Low Oil Pressure Warning Light !

[Suffolkboy77]

Hi guys, I have a 2.0 dsg that keeps having the oil pressure warning light coming on? I have replaced pressure switch and checked the wiring to switch all look ok, did a pressure test and pressures looked lower than I expected, but I don’t have the manufactures specs to hand... the strange thing is it’s not all the time, I would expect if it was a genuine oil pressure problem, it to be when idling, but it happens at random but is worse when warm.
It has had a genuine oil pump fitted before, but still problem persists.
Could it be that Diesel is getting into the oil and diluting it?
Any ideas or testing info would be helpful, many thanks

 

[Dellmassive]

What engine? What's the van spec? ... there all 2.0ltr

What are you oil levels like?

Derv in the oil will make the level go up..

A leak, down....

So if its not going up or down would look at the oil pickup strainer in the sump. It may be partially blocked causing oil supply problems..... which would trigger the oil pressure light.

Or low pressure in a high millage engine would indicate worn surfaces or bearings causing excessive oil flow and reduced pressure.