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- Mercedes Benz E Class AMG: How to Replace Fuel Pump
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Fuel leak issues - some investigation & DIY
12-07-2012, 11:35 PM
#26
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12-08-2012, 03:11 AM
#28
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When I replaced the driver's side, I inspected the passenger's side. You could see it starting to fatigue. I epoxied the passenger's side. Maybe I will pull the access cover again to see how it has held up since
12-08-2012, 05:41 AM
#29
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03 E55 AMG, 06 Harley Road King Custom 06 Ram 2500 Cummins, 97 Firebird Race Car, 88 Cutlass Supreme
I'd try to find out what type of plastic this is and buy a specific epoxy meant to bond to this plastic. It may be pricey though, plastic specific epoxies tend to be. The right stuff will bond like crazy though.
12-08-2012, 09:12 AM
#32
This same thing happened on one of my Jetta TDI's...small cracks formed and caused a leak under the back seat (same type of setup as the MB's). I removed it, cleaned it up and ran a good bit of "Right Stuff" ( http://www.permatex.com/products/our...he-right-stuff ) where it cracked and it's been fine for almost a year now. after using all different types of epoxy's, etc... over the years, this stuff is IMO the best by far. It's pricey but it works fantastic and I wouldn't hesitate to give it a whirl if my E develops the problem.
12-08-2012, 09:32 AM
#34
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12-08-2012, 09:33 AM
#35
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thats what im trying to figure out, should we fill it all the way to the top where the wire plugs in or just the bottom
this second time when my senders went out the top cracked because it got too hot
this second time when my senders went out the top cracked because it got too hot
12-08-2012, 10:12 AM
#36
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the ducati guys have the same problem as well as other fuel senders, the ethanol is eating through the plastic, so we must find an expoxy that is resistant to ethanol
12-08-2012, 10:41 AM
#37
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12-19-2012, 07:20 PM
#44
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Would this problem mainly leave a noticable pool of fuel outside of the vehicle, or just a smell inside, or both?
I ask because my '07 E63 has started to fill our garage with STRONG fuel smells after filling the tank, and it has me very nervous.
I ask because my '07 E63 has started to fill our garage with STRONG fuel smells after filling the tank, and it has me very nervous.
12-19-2012, 07:49 PM
#45
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03 E55 AMG, 06 Harley Road King Custom 06 Ram 2500 Cummins, 97 Firebird Race Car, 88 Cutlass Supreme
It puddles on top of the gas tank, and eventually soaks into the back seat, or can leave a puddle on the ground in some cases. Please see the other threads on this and file an NHTSA complaint as soon as you can. There is an ongoing investigation into leaks in 03-06 E55's and there are numerous complaints about regular E classes as well. The more complaints the better the chances of an investigation. Keeping your tank under 3/4 full should get rid of the smell for you.
12-20-2012, 09:28 AM
#46
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12-21-2012, 09:46 AM
#47
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I'm having a little trouble following some of the information here.
Is the OEM manufacturer for MBZ "Airtex" or is that just a manufacturer who offers a "generic" aftermarket part?
Does anyone know who the OEM manufacturer is?
I'm forming an opinion that some of the other MBZ models who are reporting fuel leaks (E350, E500, etc) may also contain fuel system components from the same OEM supplier. (Airtex, or whoever) Admittedly, the E55 fuel pressure is substantially higher than the other models, and that may exacerbate this issue for us.... but like any manufactured product, the distribution of parts quality is a "bell shaped curve". Some products at the high-end exceed the spec, items at the low-end get rejected. It's up to the manufacturer to decide how low to set that threshold to reject bad parts... it's a balancing act between manufacturing yields vs. quality. My guess is that there are enough low-quality parts out there that even on other MBZ models you can see process-escapes and get fuel leakage. It's not as pronounced, but it still occurs...
Anyway, a few more random thoughts as I wind things down for the Christmas holiday.
-G
Is the OEM manufacturer for MBZ "Airtex" or is that just a manufacturer who offers a "generic" aftermarket part?
Does anyone know who the OEM manufacturer is?
I'm forming an opinion that some of the other MBZ models who are reporting fuel leaks (E350, E500, etc) may also contain fuel system components from the same OEM supplier. (Airtex, or whoever) Admittedly, the E55 fuel pressure is substantially higher than the other models, and that may exacerbate this issue for us.... but like any manufactured product, the distribution of parts quality is a "bell shaped curve". Some products at the high-end exceed the spec, items at the low-end get rejected. It's up to the manufacturer to decide how low to set that threshold to reject bad parts... it's a balancing act between manufacturing yields vs. quality. My guess is that there are enough low-quality parts out there that even on other MBZ models you can see process-escapes and get fuel leakage. It's not as pronounced, but it still occurs...
Anyway, a few more random thoughts as I wind things down for the Christmas holiday.
-G
01-06-2013, 10:38 PM
#48
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06 E55 AMG, 13 C63 AMG
I replaced my pump and filter assembly last weekend in my 2006 E55.
VDO was on the external parts.
There are some slight differences between my car and the pictures in this thread. The pumps look different with different electrical connectors and the fuel line connections to the top of the pumps is also different. The rest loose pretty much the same.
The top part of the filter assembly in the picture above is not the pump cap. That is a fuel pressure sensor assembly.
Just FYI- I would double check those integrity of those worm clamps on that external fuel line. Unless those are specific for fuel injection hose you will likely have a leak form the hose from uneven clamp pressure. The OEM style clamps are the way to go as they are even pressure with constant spring tension.
G
VDO was on the external parts.
There are some slight differences between my car and the pictures in this thread. The pumps look different with different electrical connectors and the fuel line connections to the top of the pumps is also different. The rest loose pretty much the same.
The top part of the filter assembly in the picture above is not the pump cap. That is a fuel pressure sensor assembly.
Just FYI- I would double check those integrity of those worm clamps on that external fuel line. Unless those are specific for fuel injection hose you will likely have a leak form the hose from uneven clamp pressure. The OEM style clamps are the way to go as they are even pressure with constant spring tension.
G
Last edited by Gadget; 01-06-2013 at 10:41 PM.
01-07-2013, 09:03 AM
#49
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07 Ducati S4R & 04 e55
Where did you order these from, and what was the cost if you dont mind me asking?
[QUOTE=Gadget@URD;5495421]I replaced my pump and filter assembly last weekend in my 2006 E55.
VDO was on the external parts.
There are some slight differences between my car and the pictures in this thread. The pumps look different with different electrical connectors and the fuel line connections to the top of the pumps is also different. The rest loose pretty much the same.
The top part of the filter assembly in the picture above is not the pump cap. That is a fuel pressure sensor assembly.
Just FYI- I would double check those integrity of those worm clamps on that external fuel line. Unless those are specific for fuel injection hose you will likely have a leak form the hose from uneven clamp pressure. The OEM style clamps are the way to go as they are even pressure with constant spring tension.
[QUOTE=Gadget@URD;5495421]I replaced my pump and filter assembly last weekend in my 2006 E55.
VDO was on the external parts.
There are some slight differences between my car and the pictures in this thread. The pumps look different with different electrical connectors and the fuel line connections to the top of the pumps is also different. The rest loose pretty much the same.
The top part of the filter assembly in the picture above is not the pump cap. That is a fuel pressure sensor assembly.
Just FYI- I would double check those integrity of those worm clamps on that external fuel line. Unless those are specific for fuel injection hose you will likely have a leak form the hose from uneven clamp pressure. The OEM style clamps are the way to go as they are even pressure with constant spring tension.
