Kia Optima: Evaporative Emission Control System / Fuel Filler Cap
Description and operation
A ratchet tightening device on the threaded fuel filler cap reduces the chances
of incorrect installation, which would seal 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.

Repair procedures
Removal
1.
Disconnect the negative (-) battery cable.
2.
Remove the stabilizer bar bushing (A).
Tightening ...
Repair procedures
Removal
1.
Disconnect the negative battery (-) terminal.
2.
Remove the [LH] rear wheel guard.
(Refer to Body - "Rear Whee ...
Other information:
Your vehicle has a maintenance-free, calcium-based battery.
If the battery becomes discharged in a short time (because, for example,
the headlamps or interior lamps were left on while the vehicle was not in use),
recharge it by slow charging (trickle) for 10 hours.
If the battery gradual ...
Rain and wet roads can make driving dangerous, especially if you’re not prepared
for the slick pavement. Here are a few things to consider when driving in the rain:
A heavy rainfall will make it harder to see and will increase the distance
needed to stop your vehicle, so slow down.
Ke ...