The presence of iodine in the fuel filter housing is indicated by the glow of the indicator in the instrument cluster.
1. To remove water from the filter, loosen the drain plug (without fully twisting) and place a suitable container under it.
2. Press the priming pump until clean fuel flows out from under the plug.
3. Replace drain plug and bleed air from system (described above).
4. After completing the work, check that the water presence indicator lights up when the ignition is turned on and goes out after starting the engine.