Draining water from the fuel filter
In this manual: Draining water from the fuel filter
5steps
~30min
2/5difficulty
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The fuel filter for diesel engines separates water from the fuel and collects the water at the bottom.
When water collects in the fuel filter, the warning light illuminates with the ignition switch in the ON position.
If this warning light is illuminated,
take the vehicle to an authorized Kia dealer to drain the water and inspect the system.
Bleeding air from the fuel filter

If you drive the vehicle until the fuel runs out completely or replace the fuel filter, be sure to bleed air from the fuel system, as starting the engine may be difficult.
- Pump the priming pump (1) up and down about 50 times, until the pump becomes harder to operate.
- Bleed the air from the fuel filter by loosening the screw (2) with a Phillips screwdriver, then retighten the screw (2).
- Pump the priming pump (1) up and down about 15 times.
- Bleed the air from the fuel filter by loosening the screw (2) with a Phillips screwdriver, then retighten the screw (2).
- Pump the priming pump (1) up and down about 5 times.
NOTE
- When bleeding air from the fuel system, use a rag to prevent fuel from splashing.
- Before starting the engine, wipe up fuel from the surfaces around the fuel filter or injection pump to prevent fire.
- Finally, check each fuel system component for fuel leaks.
Replacing the fuel filter element
NOTE Use only genuine Kia parts when replacing the fuel filter element.
Test yourself
A quick Kia Rio YB quiz: every answer comes with an explanation and a link to the manual page.
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