Kia Optima: Fuel Filler Cap. Description and OperationDescription
A ratchet tightening device on the threaded fuel filler cap reduces the chances of incorrect installation, which seals the fuel filler. After the gasket on the fuel filler cap and the filler neck flange contact each other, the ratchet produces a loud clicking noise indicating the seal has been set.

InstallationComponents and Components Location
Component Location
1. Windshield deicer relay (Built-in engine room relay box)
2. Windshield deicer switch
3. Windshield deicer
4. Deicer connector
...
Inspection
Measuring Resistance
1.
Disconnect the cruise control switch connector from
the control switch.
2.
Measure resistance between terminals on the con ...
General Safety Information and Caution
Precautions
General Precautions
Please read the following precautions carefully before performing the airbag system
service.
Observe the instructions described in this manual, or the ...