HI ALL, I OWN A 2000 BMW MANUAL 318i, E46 , ID LIKE TO KNOW PLEASE GUYS OIL SENSOR LIGHT COMES ON WHEN ITS COLD,FOR A FEW SECONDS [ BEEN READING THE FORUM THREADS AND IT SEEMS ITS A COMMON PROB, JUST LIKE TO KNOW THE ACTUAL REPLACEMENT PART [WHAT IT LOOKS LIKE PLEASE and is it easy to replace ? and if anyone can direct me to a seller of this part becides bmw manufacturer

many thanks all