Technical Intermittent dashboard beep alarm without lights after oil change?

[Shibodd]

Hello,

i own a 2005 Grande Punto with the 1.2l 8v engine.
I've just changed my oil, following the procedure on the manual, with the car jacked up on one side only.

I still have the car jacked up. While the car is running, the dashboard makes some alarm beeps at what seem random intervals, but no alarm lights turn on. Some beeps are also cut short.
What could it be? Faulty oil filter, maybe?
I unfortunately do not have a OBD scanner, although funnily enough i have a OBD to open wire connector, which i previously paired with an USB to CAN... But i don't have the USB to CAN device either anymore .

For reference, the procedure i used:

1. unboxed the MANN FILTER W610/3 oil filter
2. put some old oil on the filter o-ring.
3. screwed the filter entirely by hand with all my force, i am quite weak tbh
4. screwed the oil drain plug back on
5. added ~2.5L of Selenia K 5W-40
6. screwed the oil cap back on
7. waited a few minutes
8. checked the oil dip stick for signs of oil, just to be sure
9. checked that no oil was dripping from the pump and drain plug
10. started the car for two minutes, leaving it to idle. The beeping starts. The first beep was actually with the oil warning light on, which i guessed was due to the oil pump being empty. Due to that and the fact that the light turned off after less than 5 seconds after the engine started running, i gave it off as normal
11. turned it off and waited ~5 minutes
12. checked the oil level, it was exactly in the middle of MAX and MIN, although the car is still jacked up on the dipstick side so there's actually more than that
13. turned the engine back on for a couple of minutes to check for the beeping, symptoms persist
14. double checked that the oil filter was in fact as tight as i could have it be and that there was no dripping