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Mercedes 260e Fuel Line Bleed

Tiny
DIRTBIKERDUDE
  • MEMBER
  • 1989 MERCEDES BENZ 260E
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 178,000 MILES
How do I bleed the air out of the fuel line after I drained the fuel tank and line completely to replace the fuel filter?
Saturday, January 8th, 2011 AT 4:08 PM

5 Replies

Tiny
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  • 9,601 POSTS
Start the engine, that will push the air out. The need to "bleed" the air out does not exist for fuel lines, you might be thinking of a hydraulic system that does not recirculate, fuel in a fuel injected engine is always moving and there is no need to bleed the air out, just start the car and the air will get worked out on it's own.
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Saturday, January 8th, 2011 AT 4:25 PM
Tiny
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Thank you very much for the information about bleeding the fuel line. I did just find that the fuel pressure regulator has a vent tube that normally connects into the breather diaphragm, but this one is broken. Will that prevent the pressure regulator from building the proper pressure, or is it connected to the breather so it will have clean air going to the fuel pressure regulator? If it is critical to proper pressure, can only the tube be replaced, or does the entire pressure regulator need to be replaced?
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Thursday, January 13th, 2011 AT 3:29 AM
Tiny
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To be on the safe side, you might want to replace the regulator.
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Thursday, January 13th, 2011 AT 3:51 AM
Tiny
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Thank you very much for your help.
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Thursday, January 13th, 2011 AT 2:38 PM
Tiny
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UR welcome
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Thursday, January 13th, 2011 AT 2:44 PM

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