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E60 / E61 (2004 - 2010)
BMW 5-Series E60 Sedan was first seen in the Unites States in the fall of 2003 with a 2004 Model Year designation. The E61 wagon followed shortly there after. The E60/E61 5 series is now available as a 528i, 528xi, 535i, 535xi, 550i and a 535xi sports wagon! -- View the E60 Wiki

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Old 03-10-2017, 12:42 PM
waddles waddles is offline
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Location: San Francisco
 
Join Date: Mar 2017
Posts: 1
Mein Auto: 2007 530xi
2007 e61 p0440

Greetings.
New to this forum. I got a 07 530xi two months ago and the SES light came on a month later. The only code that is showing is a P0440. I also periodically get a message about checking the gas cap. On my last fill-up at the gas station, the car had trouble starting. It took about 3 or 4 attempts before the engine would start.

From what I have read on the forums here and elsewhere, it could be any of these

1. gas cap seal
2. purge valve leaky
3. DMTL pump
4. a crack in a evap hose

The purge valve replacement seemed to be a common fix for P0440 and could also account for the problem starting up after filling up the tank (tank vapors forced into intake if the valve is stuck open)

Could a faulty DMTL pump cause trouble starting up after filling up the tank?

I would also like to know why the other OBDII codes for a big evap leak or small evap leak didn't show up.
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