Hi, my 318 2.0l petrol does exactly the same thing, I’ve had it checked by a plug in tester an there’s no code there!
so I’m having the pressure sensor changed.
the engine wa rebuilt less than 3000 miles ago due to a recall that had all the timing chain replaced with all associated parts. They didn’t want to release it until it was perfect and then a couple of hundred miles later it started again.
There’s no noise when the message goes off so I know there’s plenty of oil. It’s only when I come off the revs
I don’t drive hard so literally a 30 mph drive for 8 miles and stop does it!!
I keep the car covered in cotton wool. It’s a 2010 model with 64000 miles
just spent £400 on rear tyres as it was a mot advisory only
I’m going to try the 5w 40 though it’s got 5w 30 in at present
thanks
Ian
