Oil sensor pressure 2.7 crd

[Adrian D]

Factory oil pressure test port location is right below the oil cooler. M12x1.5mm.
If you want to be one of the cool kits, Bosch Motorsport makes a pressure and temperature sensor in one unit.

[Deezelweazel]

Not correct- the cool kids use the Mercedes Oilfilter Cap with the thread on top for the adapter…

[Adrian D]

Another "the factory doesn't know anything" type of thing

[Deezelweazel]

Logical oil pressure is measured at the end of the oil supply line since it is not a closed line where the pressure would be constant everywhere.
Remember Bernoulli?

So every bearing is causing an oil pressure drop.
The original location is a good one. The service location is just revealing a significant drop or showing a huge mismatch.

Industrial use of the oil pressure sensor would be sensor number 1106- which is the sensor at the last bearing, causing a shutdown if the oil pressure is to low.

But it is just a small shitty engine.