The tachometer indicates the engine speed in revolutions per minute (rpm).
Use the tachometer to select the correct shift points and to prevent lugging and/or over-revving the engine.
CAUTION
Do not operate the engine within the tachometer's RED ZONE. This may cause severe engine damage.
Kia Cee'd JD Service Manual: Engine Coolant Temperature Sensor (ECTS) Repair procedures
Inspection
1.
Turn the ignition switch OFF.
2.
Remove the ECTS (Refer to "Removal").
3.
After immersing the thermistor of the sensor into engine coolant, measure
resistance between the ECTS ...
Kia Cee'd JD Service Manual: Cowl Side Trim Components and components location
Component Location
1. Cowl side trim
...