Alfa Romeo check engine light comes on to warn the driver that the On-Board Diagnostic System (OBD) has detected a problem. Check engine light may also be referred to as CEL or Malfunction Indication Lamp (MIL).
My 2012 Alfa Romeo Giulietta 1.4 T Distinctive had a major service at 103000km. The service light (wrench sign) came on recently at 112564km. I did not take the car in, and yesterday, two weeks later, the wrench sign is no longer showing. Does that mean that the car now need urgent service as I can only take it in next Monday.