F reg bmw three series 1.8 non injection, I have replaced th

F reg bmw three series 1.8 non injection, I have replaced the oil pressure switch hoping it was faulty?
but on tick over the oil light flickers dimly when its up to temperature, but as you rev the engine it goes out, there is no rattles from the engine and it uses no oil.

I recommend checking the engine's real oil pressure with a recognized good gauge. it's wise to use a mechanical gauge check the pressure in the same place that the oil pressure sending unit is usually located. If you have good oil pressure when checked with this gauge, then you have a problem with the lsending unit.

Technician five years, senior sevice advisor four years

Hi
If youve replaced the oil pressure switch with a new one you have an oil pressure problem.
This may be caused by some number of things but the most likeley is either the oil pump or low viscoucity oil.
Try replacing the oil 1st with a good quality castrol/shell 15/40.
If this does not fix it then you have to strip the engine to get the oil pressure pump replaced.
It could also be a sign that there's extreme wear inside the engine big ends,little ends or a blockage in the oil feed to the pressure switch. HOPE THIS HELPS.

have you checked the oil. if not, you have the start of compression problems.. and that is big money..
you could attempt putting slick50 in to lesson the damage to the engine.

then its set right dummy