Oil pooling around injectors/intermittent low oil pressure 1.6 TDI

Hi all,

I am recently having an issue where I get an intermittent low oil pressure warning on the dash. First time I got this message I pulled over and checked oil level and found it to be quite low, which is strange as I've not noticed any leaks/smoke. I did notice a small amount of oily residue around the injectors on top of the engine block - also strange.

Anyway I did an oil and filter change and have since driven the car for a few hours, same issue - intermittent oil pressure low. Appears completely random, twice on a 2 hour journey.

I've checked oil again, and I now note that there is a large pool of oil collecting inside the injectors. I plan to clean it out thoroughly tomorrow and see it comes back again. Also visible oil scorch marks on top of the plastic engine cover suggesting the oil has been burnt off (strong smell of oil inside bonnet too).

My question is what could be causing the oil to pool in this area and also could it be linked to the intermittent low oil pressure warning?

Should I change the oil pressure sensor as well?

Thanks in advanceAttachment 39110Attachment 39111Attachment 39112Attachment 39113

The injectors need to come out for new seals, we replace the cover with the revised version 03L 103 469 R which is £231.24 and you would also need injector seals and bolts. It is vital that the tensioning plate and injector orientation and positioning are maintained or the plates replaced. However, none of this would make the red warning come on unless the level was very low so replace the sender.

Make sure the two smaller orings in the oil filter housing are in good condition and fitted correctly