November 11, 2014 Service bulletin

Some customers may complain that the fuel gauge shows empty and/or the distance-to-empty on the...

Mazda technical service bulletin 09-048-14-2975A for 2014-2015 Mazda MAZDA3, 2013-2015 Mazda CX-5 and 2014-2015 Mazda MAZDA6.

Bulletin number: 09-048-14-2975A
Component: Fuel system, other: storage: fuel gauge system
Summary: Some customers may complain that the fuel gauge shows empty and/or the distance-to-empty on the multi-information display (mid) indicates 0 with a certain amount of fuel remaining in the tank.this may be a normal operation of the fail-safe function:1.if foreign material (contained in a poor-quality fuel) adheres to the fuel gauge sender unit, the fail-safe func-tion initiates by forcing the fuel gauge and the distance-to-empty to indicate zero fuel amount.2.immediately after the foreign material is dislodged by shaking of the fuel during driving or refueling, the fuel gauge will return to a normal reading, but the distance-to-empty will continue to read 0 until the next refuel-ing of 3 us gallons (10 liters) or more.to correct the problem the following change has been made:1.there is no mass-production change to prevent adhesion of foreign material to the fuel gauge sender unit. So the fact remains unchanged that the fuel gauge and the distance-to-empty indicate zero fuel amount when foreign material adheres to the fuel gauge sender unit, and the fail-safe function initiates.2.to equalize the recovery timing from the fail-safe mode, the logic has been changed so that the distance-to-empty recovers from 0 to a normal reading immediately after the foreign material is dislodged (at the same time as the fuel gauge).

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