Hyundai fuel filter problem

Last week a warning light came on telling me that there was "Water in Fuel Filter" and the car went into limp mode. I asked my local garage to fit a new filter and he has just reported that there was no trace of water and, worryingly, the warning light remains on. The car has done 21000 miles and I have booked it into the Hyundai Main Dealer. Any thoughts on this, please?

Asked on 13 August 2015 by Stanjo

Answered by Honest John
The fuel filters in these are sensitive to globules of emulsified fuel in the fuel filter, which occur in biodiesel when the temperature drops because the bio part of the diesel has a higher moisture content than fossil diesel. Your local garage probably cannot re-set the fault code.
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