|The layout and particular shape of the Carrera 4
fuel tank does not allow direct measurement of the fuel level over the entire measuring
range, but rather demands special measures for calculating the level in the bottom third
of the tank. If unfavorable electrical tolerances coincide in the electronic logic unit,
it is possible that the fuel level and range of remaining fuel (in vehicles with on-board
computer) may be displayed incorrectly.
This means that the display indicates a higher
fuel level to the driver than is actually available and therefore, in some circumstances,
the vehicle may run out of fuel causing a loss of power and thus the potential for an
The control unit, which determines the fuel level, will be reprogrammed to more
accurately estimate the remaining fuel. Porsche has already notified dealers of the recall
and provided the updated software to them. Owners will be notified via First Class mail
the week of April 10, 2000.
Porsche discovered the problem during analysis of field reports and product
observations. It is unaware of any accident or injuries resulting from this problem.
(April 14, 2000)