See also:

18. Malfunction Indicator Light (MIL)
The Malfunction Indicator Light (MIL) is part of an onboard diagnostic system, called OBDII, that monitors engine and automatic transmission control systems. The light will illuminate when the k ...

Spark plugs
The cleanness and soundness of the spark plugs are very important for keeping the engine efficient and polluting emissions down. The appearance of the spark plug, if examined by an expert eyes, is ...

Central vents
(A) - Air flow opening/closing control. ...