My 2006 bmw 325i won’t start, there is a hmmmm sound comes from fuel pump when I start the car, but no start, what could be the problem

Jeremiah Meyer

• 204 Answers
• Posted on Jan 08, 2009

SOURCE: need location of fuel pump relay

This relay will be in the Power Distribution Center under the hood in the engine bay. Thanks for using fixya!

Sincerely,

jC

SOURCE: 2002 bmw 325i running rough

Did you replace your fuel filter when you did the pump? At lower RPM's the engine would be starving for fuel. Another cause could be your throttle position sensor. It is what shifts your transmission at predetermined shift points as you throttle up and down. It is also what kicks down your engine when you are stopping or slowing down as you go down through the gears. Hope that helps!

SOURCE: check engine light comes on but car runs great 2002 bmw 325i and

The check engine light could be any number of things and the only way to find out is have the codes scanned. The brake light issue is common on E46 3 series. It is an issue were the brown ground wire that goes into the lamp housing melts at the connector causing a loose ground connection. The connector needs to be replaced and also add additional grounding wires to prevent further issues. And for fuel additives either use the cheveron techron, or the bmw fuel additive(the bmw stuff is the exact same thing, so just use which ever is cheaper).

ROBERT GARCIA

• 926 Answers
• Posted on May 21, 2009

SOURCE: how to remove fuel pump on 1989 325i bmw

remove rear seat and look for plastic big round cap

SOURCE: 2003 bmw 325i no fuel pressure loses power to pump

replace the fuel pump relay