Low Oil Pressure Issue

[Coose]

Hi all.

Have a slight issue and I'm hoping there will be many of you here that can shine some light on it.

Purchased a Mk5 GTi back in February absolutely love the car.
Recently though it's developed a intermittent issue with the oil pressure.

Basically when the engine temperature reaches 90 degrees the red oil pressure light comes on and beeps warning that I pressure is low and to stop the car.

I've only had it happen twice first one happened around a month ago and the other just yesterday.

Also I have noticed that the engine does take quite a long time to get up to 90 degrees too (possible thermostat fault maybe?)

On long journeys it's all fine the pressure issue tends to happen on shorter start stop trips around town?

Could this be a Oil Pressure Switch issue?
Or an oil pump issue?

Anybody experienced this kind of problem before??

Also yes I have checked the oil levels and levels are all good car also had a full service a week before I purchased it. Also it has the sump off cleaned and the pick up pipe was cleaned too.

Just want to clarify that I only get the oil pressure warning when the engine temp reaches 90 degrees.
Any information welcome.

Thanks in advance.

[bobby_fodge]

I have this very same symptom. I have a modified oil pump balance shaft assembly from AKS to fit. Initially the balance shafts were just locked but this made no difference to the low oil pressure. The AKS part has the shafts removed completely.

I fitted a dash mounted oil pressure gauge so if i put the DSG into manual I can keep the revs and therefore oil pressure high enough to stop the oil pressure warning light/engine seizing. In auto the DSG lets the revs drop very low before changing down and this can be avoided if you have an in car gauge.

If you search for my threads from a couple of months ago you'll see all this in more detail.