Why does the Mercedes-Benz engine yellow light come on after the annual inspection?

[WestonMarie]

After the annual inspection, the engine yellow light comes on due to the rough driving by the inspection personnel, not because of a vehicle malfunction. Therefore, simply disconnecting the negative terminal of the vehicle's battery can eliminate this warning. Introduction to the yellow engine warning light: This commonly referred to yellow engine warning light is also known as the fuel injection system warning light. As long as there are no significant abnormalities in the engine's power and sound, you can continue driving. This is because the ECU has a program to substitute for errors. Ways the engine warning light can illuminate: Yellow light steady on, yellow light flashing; red light on, red light flashing. If the red light is on, immediately go to a 4S shop for inspection and repair, as the fault is very serious. If the yellow light is on, the fault may not affect driving, but it should still be checked as soon as possible.