Hi, I was driving along and the engine jerked and after about half a mile, the Oil pressure control light turned on, I stopped and turned off the engine, turned it back on and everything was fine, and then after about another 40 miles the car was running on low revs for a moment and the control light came back on. Switched ignition off, then on and it's back to normal. The car runs normally and there seems to be nothing wrong with it at all. Does anybody know what this might be? I have the 2000 Audi A4 1.8T B5 with 125000 miles on the clock. I also scanned the car with VAG-COM and no faults came up.