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6 Series
The BMW 6 Series builds on BMW's sporty heritage with aggressive lines and an incredible motor to back the design up. Available in coupe and convertible trims with a standard 4.8 liter engine producing 360 horsepower and 360 lb-ft of torque, the 6-series is a popular choice that exceeds expectations.

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  #1  
Old 09-13-2012, 12:35 PM
amar3690i amar3690i is offline
BMW 650i E64
Location: Fresno
 
Join Date: Apr 2012
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Mein Auto: BMW 650i
Vacuum like noise from left back tire

Hi guys, the other day I was running out of fuel and then I heard a vacuum like noise coming out of the drivers rear Tire side.
I filled the car up with some fuel N It was gone.
Can anyone help
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  #2  
Old 09-13-2012, 04:53 PM
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Yorgi Yorgi is offline
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If I had to guess...there is a fan in the trunk behind the liner on the drivers side. This cools the amps for the stereo and it is pretty loud when it's running.
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  #3  
Old 12-01-2012, 10:51 AM
amar3690i amar3690i is offline
BMW 650i E64
Location: Fresno
 
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No man, it's not that, I guess it's the gas pump, it's because of using crappy gas. My friend advised me to use only chevron, and now after about refilling from chevron for about four times, the problem is solved,
I guess there was some debris that were in the gas pump. Now that I used chevron, it cleaned it. Now I understand why chevron is more expensive!!!!
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  #4  
Old 12-01-2012, 12:27 PM
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Yorgi Yorgi is offline
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Let me guess, your friend works for Chevron.

Good gas is important though. I've seen bad gas put a few cars and even a BMW motorcycle into limp mode.
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  #5  
Old 12-01-2012, 12:58 PM
amar3690i amar3690i is offline
BMW 650i E64
Location: Fresno
 
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Lol, no he doesn't, he had the same problem, after a while his gas pump blew. However his wasn't a bmw.....
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  #6  
Old 12-01-2012, 01:07 PM
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Nitrogen Nitrogen is offline
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Location: Central California
 
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I think the pump is in the tank and if it is when your fuel level gets really low the pump is not fully submersed in fuel so it sounds noisy. When you have plenty of fuel the sound isn't bad because the tank is not empty. I doubt the chevron fuel has anything to do with the noise.
Also it is good practice to never let your tank level to go less than 1/4. The fuel also acts as a coolant to cool the pump if you always drive near empty the pump has a tendency to always run hot and will eventually overheat and go out.
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Old 12-03-2012, 11:21 AM
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Mulchman Mulchman is offline
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Chevron gas on the left coast has Techtron in it. That is why it is more expensive and widely recommended in CA. They have so many stupid rules about gas that the typical stuff will ruin a high performance car. The max octaine in CA is 91.
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