How do you keep an eye on the oil pressure check? Before starting check that the warning light glows even without a motor run? And after the engine starts? …and then you really start driving?… Or do you not even register that any warning lights do not work? ………… Background for these questions is that: lately Öldsruckschalter-Defects are noticeable during the inspections…and the customer has not noticed anything. n…because the lamp doesn’t work. lately, the engine control light doesn’t really work. This is not a special SAAB error, but distributed to many manufacturers. ……….. So let’s go! How do you start the car…and control the functions?