| 摘要 |
In the case of an internal combustion engine, in particular in a motor vehicle, having a fuel filter system in a fuel line ( 9 ') leading to the internal combustion engine, it that operation of this motor exclusively with fuel of filtered quality is ensured. To this end, a valve ( 14 ) is provided inside the fuel line ( 9 '), preventing the internal combustion engine from being started when the fuel is unfiltered.
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