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Gas Tank Overflow

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Old Jun 20, 2012 | 07:43 PM
  #1  
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2012 E350
Gas Tank Overflow

So today, I was filling up the E (yay lower gas prices!) and for whatever reason the pump malfunctioned and did not stop even though the tank was full. The gas began to gush back out (i noticed fairly quickly) through the filling hole but only enough to flood the gas compartment and not to flow down the paint/rear quarter panel. However, I did notice fuel spraying onto my feet as well. I looked down and found a puddle of gas right next to the right rear tire. The gas didn't drip down the paint so I'm assuming the benz had a mechanism that released extra gas through a drainage at the bottom of the car? Am I crazy or did that really happen? Maybe the gas did run down the paint but I didn't notice it? I checked a couple times but gas does evap fast. Any thoughts?
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Old Jun 20, 2012 | 08:49 PM
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Originally Posted by EKlasseMercedes
So today, I was filling up the E (yay lower gas prices!) and for whatever reason the pump malfunctioned and did not stop even though the tank was full. The gas began to gush back out (i noticed fairly quickly) through the filling hole but only enough to flood the gas compartment and not to flow down the paint/rear quarter panel. However, I did notice fuel spraying onto my feet as well. I looked down and found a puddle of gas right next to the right rear tire. The gas didn't drip down the paint so I'm assuming the benz had a mechanism that released extra gas through a drainage at the bottom of the car? Am I crazy or did that really happen? Maybe the gas did run down the paint but I didn't notice it? I checked a couple times but gas does evap fast. Any thoughts?
I would think the car has the capability to prevent gas from sitting when its overflowed however I would think it would be unsafe for Mercedes to allow the car to remove the excessive gas nice and casually on the floor of a gas station through some kind of release system. More likely the gas dripped down the side of the car. But i could be wrong!
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Old Jun 20, 2012 | 09:00 PM
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2017 E300 • 2016 Tesla Model S 75D
It most likely has an overflow that flows down and through the wheel well, my Audi A4 has the same thing. I believe it's probably designed this way so that it does not flow over the side/paint on purpose.
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Old Jun 20, 2012 | 10:12 PM
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2011 E550
Originally Posted by EKlasseMercedes
So today, I was filling up the E (yay lower gas prices!) and for whatever reason the pump malfunctioned and did not stop even though the tank was full. The gas began to gush back out (i noticed fairly quickly) through the filling hole but only enough to flood the gas compartment and not to flow down the paint/rear quarter panel. However, I did notice fuel spraying onto my feet as well. I looked down and found a puddle of gas right next to the right rear tire. The gas didn't drip down the paint so I'm assuming the benz had a mechanism that released extra gas through a drainage at the bottom of the car? Am I crazy or did that really happen? Maybe the gas did run down the paint but I didn't notice it? I checked a couple times but gas does evap fast. Any thoughts?
Notice drain hole lower left of gas cap.
Attached Thumbnails Gas Tank Overflow-img-20120620-00056.jpg  
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Old Jun 20, 2012 | 11:11 PM
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Originally Posted by tjkaz
Notice drain hole lower left of gas cap.
definitely missed that! thanks!
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Old Jun 21, 2012 | 02:12 PM
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I'll never understand the people who will set the "ON" lock on the hose and walk away from the car. Trusting the incredibly badly maintained gas pumps.

And the guy at the next pump who is smoking while filling --- and the girl wearing nylon who slides out of the car while her boyfriend is filling the tank and walks over and touches him! KaBooom!
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Old Jun 21, 2012 | 03:07 PM
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Originally Posted by Live Oak
I'll never understand the people who will set the "ON" lock on the hose and walk away from the car. Trusting the incredibly badly maintained gas pumps.

And the guy at the next pump who is smoking while filling --- and the girl wearing nylon who slides out of the car while her boyfriend is filling the tank and walks over and touches him! KaBooom!
This sounds mythbusters but could happen
Static electric charge is dangerous and I try to not get in the car and out during filling up or if I get in I touch a metal body part of the car just in case
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Old Jun 22, 2012 | 08:10 AM
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Originally Posted by BenzV12
This sounds mythbusters but could happen
Static electric charge is dangerous and I try to not get in the car and out during filling up or if I get in I touch a metal body part of the car just in case
Get a Diesel and quit worrying.
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Old Apr 7, 2022 | 02:10 PM
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Originally Posted by edwinwalke
Get a Diesel and quit worrying.
LOlz.
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Old Apr 7, 2022 | 04:07 PM
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Resurrecting a 10-year dead thread has to be a record.
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Old Apr 7, 2022 | 05:25 PM
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Originally Posted by DFWdude
Resurrecting a 10-year dead thread has to be a record.
lolz. Still active.
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Old Apr 8, 2022 | 01:43 PM
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Originally Posted by DFWdude
Resurrecting a 10-year dead thread has to be a record.
And, over those 10 years, I have yet to read/see/hear about a single static-caused car explosion. . .
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