Smooth Running Measurement

Smooth Running Measurement
Test conditions:
- No fault stored
- Switched off automatic climate control
- Heater to minimum
- Warm-up period finished,
i.e. when the large cooling circuit and the engine oil are oils warmed up.

Optimum starting point for measurement:
- When the electric fan has shut down just after a work interval.
- Intake air temperature below 40° C.
If this is not possible due to a high ambient temperature, this is not an exclusion condition.
As the intake air temperature increases, so the probability increases that the measurement will become invalid.