CN1

Hi, I have an Audi A4 2009. As you would all know it's an oil guzzler. The problem I have is that the reading on the dashboard says full however the warning light keeps going off saying I need to turn off ignition & check the oil. Thats hard as there's no dipstick! Last night I added half a litre just to see what would happen & this morning the warning light hasn't come on so it looks like the level was very low & the dashboard reading was incorrect. Has anybody else had this issue? Cheers Chris