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E39 (1997 - 2003)
The BMW 5-Series (E39 chassis) was introduced in the United States as a 1997 model year car and lasted until the 2004 when the E60 chassis was released. The United States saw several variations including the 525i, 528i, 530i and 540i. -- View the E39 Wiki

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Old 10-19-2013, 05:30 PM
nedmon nedmon is offline
Officially Welcomed to the 'Fest
Location: new canaan
Join Date: Jul 2006
Posts: 179
Mein Auto: 1998 528i, 1987 Carrera,
New fuel pump, better gas mileage

I just installed a new Airtex pump in my 1998 528i along with a filter. The original, at 165K miles is now a spare. The Airtex pump is a nice assembly and came with all the hose clamps and wiring. I also treated it to a new fuel filter.

The car now runs just as well as It did with the original pump but is getting a few miles better MPG.

I have no idea why this should be. Any thoughts?

87 Carrera
07 CRV
13 328i
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