Kia Optima: Inspection
| 1. |
Immerse the thermostat in water
and gradually heat the water.

|
| 2. |
Check the valve opening temperature.
Valve opening temperature:
82 ± 1.5°C (179.6 ± 2.7°F)
Full opening temperature: 95°C (203°F)
|
If the valve opening temperature is not as specified, replace the thermostat. |
| 3. |
Check the valve lift.
Valve lift : 8mm (0.3in.)
or more at 95°C (203°F)
|
If the valve lift is not as specified, replace the thermostat. |
Disassembly of the thermostat would have an adverse effect, causing a lowering
of cooling efficiency. Do not remove the thermostat, e ...
Troubleshooting
Symptoms
Possible Causes
Remedy
Coolant leakage
•
From the thermostat gasket
...
See also:
Interior A
Front pillar trim mounting hole (Ø12)
Front pillar trim mounting hole (Ø8.4)
Cowl cross ...
In the Event of Brake Failure
If the service brakes should fail to operate while the vehicle is in motion,
you can make an emergency stop with the parking brake. The stopping distance, however,
will be much greater than normal ...
Battery saver function
The purpose of this feature is to prevent the battery from being discharged.
The system automatically turns off the parking lights when the driver removes
the ignition key (smart key: turns o ...