Bad gas mileage and throwing a code
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2013 Mercedes e350
Bad gas mileage and throwing a code
hello again guys a little history I had made a previous post because the care wouldn’t start after changing fuel filter and pump turns out one of the hoses was getting disconnected upon vehicle crank so I had to put a clamp on it and haven’t had any issues since after the changes I noticed my fuel tank would click before it showed fuel on the gas gauge it would only fill up about 90% so I figured it would go away after a few days which it didn’t then I noticed how terrible my gas mileage has been so I decided to buy xentry so I can get to the bottom of this above are pictures of the code and value levels if anyone has any idea what it could be would be greatly appreciated stay blessed
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2013 Mercedes e350
Out Of Control!!
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19 GLA45, 86 560SL, former: 14 E550 4Matic, 09 E350 4Matic, 83 240D manual, 78 450SLC, 81 500SLC
He mentioned in his original post that he somehow had to resort to clamping one of the hoses on to his fuel filter when he changed it. This seems highly suspect.
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19 GLA45, 86 560SL, former: 14 E550 4Matic, 09 E350 4Matic, 83 240D manual, 78 450SLC, 81 500SLC
I think you might have either broken the sensor or clogged a hose when you were doing your ghetto fix.
If the hose popped off, it wasn't seated right or you broke the push to connect. There is absolutely no way a random clamp should have been necessary. Since you got to that point, I can't say what you did to get yourself there.
Do you have any pics of your "fix"?
If the hose popped off, it wasn't seated right or you broke the push to connect. There is absolutely no way a random clamp should have been necessary. Since you got to that point, I can't say what you did to get yourself there.
Do you have any pics of your "fix"?
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2013 Mercedes e350
I think you might have either broken the sensor or clogged a hose when you were doing your ghetto fix.
If the hose popped off, it wasn't seated right or you broke the push to connect. There is absolutely no way a random clamp should have been necessary. Since you got to that point, I can't say what you did to get yourself there.
Do you have any pics of your "fix"?
If the hose popped off, it wasn't seated right or you broke the push to connect. There is absolutely no way a random clamp should have been necessary. Since you got to that point, I can't say what you did to get yourself there.
Do you have any pics of your "fix"?
I do not have any pictures of the fix but the hose itself was just coming off after driving it for a bit I’m assuming from all the pressure I am going to take it off here in a bit and send pictures so y’all can have better stuff to go off of
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19 GLA45, 86 560SL, former: 14 E550 4Matic, 09 E350 4Matic, 83 240D manual, 78 450SLC, 81 500SLC
Also let us know if you have fuel leaking around that connection point when you open the hatch to get the pics...
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19 GLA45, 86 560SL, former: 14 E550 4Matic, 09 E350 4Matic, 83 240D manual, 78 450SLC, 81 500SLC
But the fact that you had to use a clamp of some kind means that something went very wrong in your replacement.
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xentry says "check component b4/7 (fuel pressure sensor) by means of actual value". To do this, you would hook a meter up to the B4/7 output, and ideally also hook up a fuel pressure meter so you can confirm the actual pressure vs what the sensor reading says it is.
Do NOT just randomly start changing parts.
Do NOT just randomly start changing parts.
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In the bottom picture of the first post it shows fuel pressure at 5.5 bar. Range is 3.5 - 11 bar.
Why are forum members saying pressure is low? Just because Xentry says so?
The actual value by the picture says otherwise.
Why are forum members saying pressure is low? Just because Xentry says so?
The actual value by the picture says otherwise.
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XENTRY IS MISLEADING
What do you think is going wrong ?
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Low pressure at the sprayers would explain bad fuel mileage...
This could be a glitch in Xentry...?
Would be nice to see what the high-pressure side reads.
Last edited by Arrie; Mar 4, 2025 at 05:25 PM.
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injection pressure on a DI engine is sky high, like 1000s of PSI, regular fuel pressure meters can't touch that, its diesel territory.
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...and I'm jealous about that station wagon you have...
Last edited by Arrie; Mar 4, 2025 at 07:54 PM.
