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E85 / E86 Z4 (2003-2008)
E85 Z4 Roadster, E86 Z4 Coupe, E85 Z4 M Roadster, and E86 Z4 M Coupe talk with our BMW gurus here.

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  #1  
Old 01-27-2013, 10:14 PM
macsnjets macsnjets is offline
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Location: New Jersey
 
Join Date: Jan 2012
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Mein Auto: 2003 z4
How do I drain out all the fuel?

I've been troubleshooting a P0102 code and rough running. While I'm still looking for a vacuum leak I want to drain all the gas and replace with fresh. My 03 Z4 2.5 sat for several months so I just want to rule out bad gas. What's the easiest way to completely drain the tank and fuel system?

Thanks
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  #2  
Old 01-27-2013, 11:59 PM
SilverX3 SilverX3 is offline
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Location: Australia
 
Join Date: Sep 2005
Posts: 3,278
Mein Auto: 130i & E92 325i, E90 SOLD
Suck it out with a hose
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Old 01-28-2013, 12:09 AM
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Pinecone Pinecone is offline
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Location: Maryland
 
Join Date: Apr 2002
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Mein Auto: M Roadster/M3
Easiest way is to poke a hole in the bottom of the tank.

Or you can siphon it out.

Or you can pull the hose that feeds the engine, turn on the key and let it pump out.

Or, several months is no big deal. Our Roadster sits every winter.
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