Hi folks done a search but can't find anything related, I have an a3 1.8t 180 bhp (engine code AJQ) basically on a few occasions a symbol for oil level minimum/low has flashed up on my dash, on all occasions iv pulled over switched engine off checked the oil level, which has been fine, iv got back in the car turntable ignition on and the smoke/warning has gone, the icon is yellow and not red, just wondered if anyone has any ideas or tips as to why this is happening, I'm kinda swaying towards thinking maybe the oil is running abit thin and causing the sensor to give false readings but not sure if that is possible, other thought was due to having driven up a long steep hill the first time and down a long sloped gradient the other times, could this be the cause or is there other things I should check? Cheers in advance chaps/lasses