Tank Assembly Problems of Mercedes Benz E320

Mercedes Benz E320 owners have reported 29 problems related to tank assembly (under the gasoline fuel system category). The most recently reported issues are listed below.

1 Tank Assembly problem of the 2008 Mercedes Benz E320

Failure Date: 10/14/2014

The contact owns a 2008 Mercedes Benz E320. The contact stated that fuel fumes emitted into the vehicle and the fuel tank was leaking fuel. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 66,000.

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2 Tank Assembly problem of the 2005 Mercedes Benz E320

Failure Date: 12/19/2013

There is a very strong smell of gasoline in the cabin of the car after I fill the gas tank. The smell persists until about one-eighth to one-quarter of the tank has been used then dissipates. I have read where this is a common problem for this class and year of mercedes. I just purchased the car. Is there a recall to solve this problem? if so, is there a reference number? if not, is there a service bulletin issued by your agency or by mercedes to its dealers to fix the problem. Mercedes should be compelled to fix this. The gas fumes are nearly incapacitating and certainly impair safe driving.

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3 Tank Assembly problem of the 2004 Mercedes Benz E320

Failure Date: 11/26/2013

Filled up the vehicle and drove it approximately three miles to my home, parked vehicle in the garage. Later that evening I noticed a very strong fuel odor in the garage. Did some research on a couple mercedes owners online forums that indicate that fuel leakage is a common issue with my 2003-2009 e series models. Removed the vehicle rear seat (fuel tank is located under seat) and the screwed-down inspection seal to view the fuel sending unit. Observed a significant quantity of fuel puddled on the top of the fuel sending unit. . Read more...

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4 Tank Assembly problem of the 2004 Mercedes Benz E320

Failure Date: 10/20/2013

After I filled full tank on my car, I noticed after several hours, there was gas leaking below the rear passenger's seat. There were a lots of fuel that were spilled, and my whole garage smelled strong odor of gasoline.

5 Tank Assembly problem of the 2005 Mercedes Benz E320

Failure Date: 09/02/2013

Strong smell of gasoline inside and outside of vehicle after filling up gas tank. Any recalls?.

6 Tank Assembly problem of the 2003 Mercedes Benz E320

Failure Date: 08/23/2013

My wife was driving home from work when she smelled a noxious gasoline odor. Took car for repairs on Aug 23, 2013. Had to replace the auxiliary (sending) pump and the cable harness attached to the fuel tank. Mercedes has had numerous issues with the fuel tank and pump but they refuse to do a recall and fix the problem. This repair cost $664. 18 to fix items that are inherently defective in the mercedes vehicles.

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7 Tank Assembly problem of the 2003 Mercedes Benz E320

Failure Date: 06/01/2013

After filling the gas tank there was a strong smell of gasoline and leaking fuel near the drivers side rear tire. Upon calling a mechanic they said to look under the seat for leaking fuel. The fuel sending unit was definitively leaking.

8 Tank Assembly problem of the 2004 Mercedes Benz E320

Failure Date: 12/28/2012

I noticed a strong gasoline smell inside the garage when the door is closed. I walked around the car trying to determine where it is coming from. The strongest gas smell is around the rear wheelwell on the drivers side. Three days later, the gas smell went away. Then I went to fill-up my gas tank after four days and there is the gasoline smell again inside the garage on the same location.

9 Tank Assembly problem of the 2005 Mercedes Benz E320

Failure Date: 02/15/2012

After filling the fuel tank completely full, I noticed a strong smell of fuel. I removed the rear passenger seat and also removed the two panels that cover the fuel sending unit. Once I removed the two panels I saw a puddle of fuel sitting in a low spot on top of the fuel sending unit. This concerns me as it is puddling and vapor is being put into the passenger compartment of the vehicle as well as the atmosphere.

10 Tank Assembly problem of the 2005 Mercedes Benz E320

Failure Date: 02/14/2012

The contact owns a 2005 Mercedes Benz E320. The contact stated that the fuel tank was leaking. The contact took the vehicle to the dealer and was informed that there were multiple leaks in the fuel tank and the fuel tank needed to be replaced. The VIN was not available. The failure mileage was unknown and the current mileage was 70,000.

11 Tank Assembly problem of the 2005 Mercedes Benz E320

Failure Date: 01/02/2012

Fuel tank leaks fuel at the top when tank is filled higher than 3/4ths. There are several hundred reports of this on these models on the internet. The issue appears to start occurring around 90-100k miles. Since mercedes are made to go many miles this can be an issue. This is very dangerous. I have had it at a mechanic he told me that I should report this to mercedes as it appears that the plastic fuel tank has a flaw in it. We have not fixed the problem as we want it to be investigated. Looking for guidance.

12 Tank Assembly problem of the 2003 Mercedes Benz E320

Failure Date: 11/01/2011

Sending unit leaks gasoline into the cabin of the vehicle letting in intense fuel vapors as well as actual liquid fuel into the cabin. Furthermore the faulty sending unit causes a fuel leak from the gas tank to the exterior of the vehicle leaving puddles outside of the car while parked and continuing to leak while driving. Both of these pose an extreme danger of fire hazard, as well as a health risk from constantly inhaling gasoline fumes.

13 Tank Assembly problem of the 2005 Mercedes Benz E320

Failure Date: 08/02/2011

The contact owns a 2005 Mercedes Benz E320. The contact stated that there was an overpowering gasoline smell inside the vehicle, interfering with the contacts ability to operate the vehicle. The vehicle was taken to the dealer where the dealer advised that the fuel tank was leaking abnormally and needed to be replaced. The manufacturer was not contacted. The contact was concerned that the leaking fuel tank could result in a fire and that the vehicle was unsafe to drive. The failure mileage was 41,190.

14 Tank Assembly problem of the 2004 Mercedes Benz E320

Failure Date: 07/21/2011

2004 E320 mercedes fuel smell possibly due to a recall issue of the fuel sender recall and/or fuel filler recall . I just purchased the car a couple of months ago and noticed this smell yesterday when I filled up my gas tank. I did some researech and noticed that there was an emissions recall from mercedes about these issues. I am scared that the recall part is leaking fuel and will blow up killing my family and I.

15 Tank Assembly problem of the 2004 Mercedes Benz E320

Failure Date: 06/01/2011

2004 Mercedes Benz E320. Consumer states problem with vehicle gas tank the consumer stated after refueling the vehicle, he smelled a strong odor of gas in the days that followed. The vehicle was taken to an authorized service center where an inspection revealed the fumes were coming from a hole in the gas tank, which was a well- known manufacturing defect.

16 Tank Assembly problem of the 2004 Mercedes Benz E320

Failure Date: 06/01/2011

A strong odor of gasoline eminates from car after filling it up with gasoine. Had a mechanic trouble shoot and it was determined to be a leak in the fuel sensor which was causing gasoline to puddle on top of fuel tank underneath the back seat of the automobile.

17 Tank Assembly problem of the 2005 Mercedes Benz E320

Failure Date: 05/09/2011

The contact owns a 2005 mercedes E320. The contact stated that the check engine light illuminated, so the vehicle was taken to an authorized dealer and she was informed that the fuel tank was leaking. The contact was also informed that the leak was located at the top of the fuel tank. As a result, a strong odor of fuel would emit from the vehicle during the first fifty miles of driving after refueling. The vehicle was not repaired. The failure mileage was 70,000 and the current mileage was 83,000.

18 Tank Assembly problem of the 2005 Mercedes Benz E320

Failure Date: 05/01/2011

2005 Mercedes Benz E320. Consumer states fuel filter assembly problem the consumer stated after refueling the vehicle, a strong odor of gas was present. After the fuel filter problem was diagnosed, the mechanic had no idea there was also a gas tank problem. The next month, the strong odor of gas was back again. The vehicle was taken to the dealer and the consumer was informed the fumes were coming from the gas tank due to a defect in the gas tank design. A hold was discovered in the gas tank under the passenger compartment.

19 Tank Assembly problem of the 2005 Mercedes Benz E320

Failure Date: 01/15/2011

Tl-the contact owns a 2005 Mercedes Benz E320. The vehicle was parked in the contacts garage when the contact could smell a strong odor of gasoline. The vehicle was recently refueled prior to the failure. The vehicle was taken to an independent repair shop where the contact was told the fuel tank was leaking. The was in the process of being repaired. The failure and current mileages were 52,000. Sm.

20 Tank Assembly problem of the 2005 Mercedes Benz E320

Failure Date: 01/14/2011

Car bought off lease from Mercedes Benz credit at auction. Almost immediately began to smell strong fuel vapor odor when the car was filled with fuel. Determined that fuel tank is made out of plastic. This plastic fuel tank had a crack in it. It had to be replaced at my cost. I believe this should be a national recall and be paid for by Mercedes Benz. Online, there are many reports of this occurring in other mercedes E320's like mine. The dealer admitted replacing over 20 of these fuel tanks per month.

21 Tank Assembly problem of the 2005 Mercedes Benz E320

Failure Date: 01/02/2011

Gas leak rear tanks mercedes E320, gas leaks out when tank is full, dealer says to not to; ooff tank. Cill cost $2200 to fix. No warrsenty. Car only 5 years old and needs new gas tank. Dealer should payt for this kind of maintenance, is replacing gas tank every 5 years typical maintenance? this could cause fire, very dangerous.

22 Tank Assembly problem of the 2004 Mercedes Benz E320

Failure Date: 12/11/2010

Mercedes 2004 E320 fuel tank leaking under rear passenger seat. Strong odor of gasoline which is worst right after fillup, became progressively worse over time.

23 Tank Assembly problem of the 2003 Mercedes Benz E320

Failure Date: 04/20/2010

The gasoline tank on my 2003 e 320 mercedes had a leak on the top portion of the tank. This allowed fumes to leak into my garage and would have presented a huge fire risk had I not discovered the problem and been involved in a rear end collision. A gas tank should not fail under normal wear and tear.

24 Tank Assembly problem of the 2005 Mercedes Benz E320

Failure Date: 02/01/2009

The contact owns a 2005 Mercedes Benz E320. The contact stated that there was an overpowering gasoline odor in the vehicle. The vehicle was taken to the dealer who diagnosed the failure as a fracture in the fuel tank. The manufacturer was contacted who did not offer any assistance. The vehicle was not repaired. The VIN was unavailable. The failure mileage was 50,000 and current mileage was 77,000.

25 Tank Assembly problem of the 2005 Mercedes Benz E320

Failure Date: 01/15/2009

The contact owns a 2005 mercedes-benz E320. While the vehicle was parked he noticed a gasoline odor and a leak on the garage floor. The contact started the vehicle and the check engine light illuminated on the dashboard. The vehicle was taken to an authorized dealer for the failure. The dealer performed a diagnostic test and it was determined that there was a spurge leak. The dealer performed a smoke test which did not determine the cause of failure. The computer was reprogrammed on January 12, 2009. The contact noticed a fuel smell every time he added fuel to the vehicle after the dealer reprogrammed the computer. The vehicle was taken back to the dealer on may 6, 2010. The dealer replaced the fuel seal in the fuel tank sending unit. The vehicle was taken back to the dealer on January 31, 2011 and the dealer advised him that the fuel tank needed to be replaced. The vehicle was not been repaired since the fuel tank was no longer under warranty. The failure mileage was 49,000 and the current mileage was 70,000. Updated 04/08/lj.

26 Tank Assembly problem of the 2005 Mercedes Benz E320

Failure Date: 05/01/2008

The contact owns a 2005 mercedes-benz E320. The contact stated that after refueling, a fuel odor was smelled inside the cabin. The vehicle was taken to the dealer where it was found that the fuel tank had failed. The vehicle was not repaired. The manufacturer was not contacted about the failure. The failure mileage was approximately 60,000 and the current mileage was 125,000. Updated 05/28/lj updated 06/11/2013.

27 Tank Assembly problem of the 1996 Mercedes Benz E320

Failure Date: 08/28/2007

When I found out that my dear wife was dying from advanced kidney failure, I went out and bought a beautiful 1996 e 320 (from its original owner). However, when he decided to advertise the car, he carefully pressure-washed the engine compartment, etc. , so it would look its best. After which, he could not get the engine to fire again, so he had it towed to the local dealer, who charged him almost $800 to "dry off the spark plug wires, & replace the spark plug boots"!!! (nothing was mentioned about "cracked wiring, etc. ) I took possession of the car right after this fiasco, and never gave it a second thought until the car began to sputter and die, right in the midst of traffic, etc. ! on at least 3 other occasions, the car has simply shut off, just like turning the ignition off! the orig. Owner says it has never done this for him! so I stumbled onto the huge list of consumer complaints on the deteriorating wiring harness issues, which have not been recalled by mb. I have always held mb in highest regards, but for them to know about this, yet not fix it, is unforgivable! my wife's aid must use this car to drive her to her routine doctor appointments, and I can only say that they'd better not get hurt in this vehicle because it stalls out with them! they will have a lawsuit on their hands for sure! I only expect that such blatant faulty wiring problems should be fixed. . . No questions asked! I believe any american manufacturer would do so, and I expect mb to be held accountable to fix this horrific well-documented problem! please use whatever power you can muster, to help convince them to rectify this defect! (I no longer believe the dealer mechanic who told me that he had never heard of this car doing such a thing, and it must be a drop of condensation in the gastank"! I was instructed to "run a can of injector cleaner thru, and it should fix the stalling problem". Ha! not!!!!.

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28 Tank Assembly problem of the 1999 Mercedes Benz E320

Failure Date: 05/30/2004

On 3 occasions pumping gas in the last 4 months I have had problems with gasoline spewing out of the tank after I remove the pump nozzle. It was not a simple failure of the pump to turn off. It seemed like air pressure built up much like pumping up an air canister to spray weed killer on a yard. The gasoline covered my arm and sprayed onto the pump. Each occasion was at a different station and all of the stations were relatively new. It does not happen at our regular service station.

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29 Tank Assembly problem of the 1999 Mercedes Benz E320

Failure Date: 09/15/1999

Fuel tank has a design problem. When consumer is filling up vehicle, after the fill up, and extra 4. 7 gallons of gasoline can be added additionally, this gasoline is pumped into tank and charcoal canister and lines, due to design consumer experienced a large amount of gas expelling out of the tank.


Other Common Gasoline Fuel System related problems of Mercedes Benz E320


E320 Service Bulletins
E320 Defect Investigations