All good stuff anderewwynn but the diesel is a bit different....

The in-tank pump is similar (perhaps the same?) as is the siphon. The diesel then has another in-line electric pump right after the tank outlet, followed by the diesel fuel filter (which needs to be changed at least every third oil change or so). Then the fuel reaches the high-pressure pump on the engine.... And by high, I mean HIGH....

So there's a few "pumps" to check! But they do last a lot longer on diesels due to the better lubrication provided by diesel fuel. We call them "oil burners" for good reason. :-)

And we have to be very careful to avoid water in the fuel too, as that really damage the HP pump and injectors. Keeping the tank, lines, pumps etc. in good nick is critical on any diesel.

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Wayne
2005 BMW X5 3.0d (b 02/05)
2001 BMW F650GS Dakar (b 06/01)