JetSetter1984

Once again, many thanks for taking the time and effort to help. I will contact a mechanic later and hopefully get some insight on this. Hopefully it's not too big a job but definitely could potentially be the cause.

Thank you so much for the response. Very good advice. I have not thought about the oil cooler. Is it something that is easy to remove and clean or replace? Or a complete pain and expensive like the oil pump?

Hello, just joined and posted a pic of my car and would appreciate any input on the subject. I can drive the car day and night normally and no warnings/lights ever trigger, it drives lovely and sounds very smooth. I do, however, experience something odd sometimes, not everytime, about 30-40% of the time. If I go above somewhere around 3500-4000rpm with the accelerator pressed, the car pulls like a train and shows no warnings, but when I return to idle, I get a low oil pressure warning. With the warning on the car still sounds and drives the same, smooth sounding with no strange noises from the engine. It only ever happens after a bit of hard acceleration and returning to idle, never while driving normally or idling after driving normally, and switching the car off for a minute and back on normally clears it until I accelerate hard again. The only strange noise from the car is always there regardless, and is a whine that increases/decreases with rpm and it happens both when driving and in neutral. Car has had both oil pressure sensors recently replaced, new oil pump, and an oil change using valvoline 5w30 and bosch filter. I have also just ordered a new low oil pressure sensor from febi bilstein, as I have heard sometimes the sensors tolerances can be out if they are not from a good source, and I have no idea where the mechanic ordered the last set from. I will be fitting that within the next few days. Any help/advice/clues on what it could be will be greatly appreciated, cheers!

Had this old girl for over a year now and have just joined the forum seeking advice, so thought I would post a pic too. Very tidy, 108k on the clock and still purrs like a kitten, no knocks/ticks etc, sounds nice. S-Tronic still operating well with instantaneous shifts and pretty smooth overall.