2004 Mercedes-Benz AMG E55: check engine light

Filed Jun 27, 2019 · Fuel system · 120,000 miles · CA

Strong gas smell inside and outside. Check engine came on and gave me a code p0456. Plesse advise!

Filed Jun 6, 2014 · Engine, Fuel system · 64,000 miles · CA

Check engine light remains on. Potent fuel smell present when gas tank filled above 3/4. Fumes are noxious and present inside the vehicle. Burning plastic-like scent also frequent even when tank not filled above 3/4. Vehicle may vibrate or hesitate while moving, may jerk unexpectedly forward when stopped even with brakes fully applied. Any leaking fuel a potential fire hazard due to sparking or friction common in moving vehicles.

Filed Dec 28, 2013 · Fuel system · 120,000 miles · RI

The fuel tank cracked and leaks fuel when the tank is full. The check engine light also comes on stating small evap leak for the fuel system, because of this crack/leak. It is potentially a fire issue and causes noticeable fuel vapor/smell inside and outside of the vehicle. It is known to effect many if not all e-classes from this generation and mercedes benz is refusing to accept liability or repair the problem.

Filed Oct 29, 2013 · Fuel system · 119,895 miles · TN

The vehicle was repaired by the previous owner at mercedes under a recall, for the fuel leaks. The vehicle threw a code for gas cap. I replaced the gas cap. Two days later the check engine light disappeared and the car threw a code for an evap leak. I replaced the charcoal canister and the gas cap thinking it may have been faulty. The vehicle continues to throw a check engine light when it is filled with gasoline. Once the tank level drops below 3/4 the warning goes away however the check engine light remains.

Filed Oct 15, 2012 · Fuel system · 46,256 miles · PR

Today I start the car and the check engine appears. I went to the dealer and scan the car. The code was p0456 and we notice a hard smell of fuel. Then I entered the code in google and began to search about this problem and saw that a few members have the same problem and they put a complain on it. So im filling the same complaint that they do.

Filed Oct 3, 2012 · Fuel system · 50,200 miles · CA

Tl* the contact owns a 2004 mercedes benz e55. The contact stated that while traveling 25 MPH the check engine warning light illuminated. The contact also mentioned that fuel fumes were emitted inside of the vehicle. The vehicle was taken to the dealer. The dealer diagnose that the fuel tank needed to be replaced. The manufacturer was not made aware of the failure. The vehicle was not repaired. The failure mileage was 50,200 and the current mileage was 51,000.

Filed Mar 2, 2012 · Fuel system · 34,000 miles · FL

I have a 2004 mercedes amg e55. I purchased the car second hand from my neighbor at +/-33,000 miles. One week of ownership, I got a check engine light. I had access to a obd2 scanner and got the code for evap error. I stored the car overnight in my garage and woke up the following morning where the whole house reeked of fuel. I had recently filled up the night before. Being familiar with this mercedes vehicle I went over the fuel system from gas spout to gas tank. The smell was coming from inside the car under the rear drivers side passenger seat. Upon further inspection and removal of the seat,access panel. I could see gasoline puddling up on top of the fuel sender. I got some paper towels and dried it. That morning I bought a new gasket seal from the dealer to try and isolate the problem. That did not help...next gas fill up the car continue to smell like fuel inside the cabin. I took it to a independent mechanic who performed the smoke test to see where the leak is coming from and sure enough it was from the top of the gas tank where it met the fuel sender. Upon taking the car to the dealer, I've been told I have to replace the entire gas tank, fuel pump, fuel sender and fittings to fix this problem. The dealer wants me to pay out of pocket the entire cost which is about $3,000. There still is a emissions warranty on the car which is good up to 8 years or 80,000 miles which they will not honor as they feel this issue doesn't qualify. They have just laughed at the situation and tried to downplay it. A lot of customers have been forced to pay out of pocket to cover this repair as they transport their kids in this car and that is very important. To prevent any further leaking, I only fill my car with gas halfway and have reset the check engine light with my scanner. Thank you.

Filed Feb 25, 2011 · Fuel system · 49,800 miles · 00

2004 mercedes e55 amg leaking fuel after every fill. Very strong fuel smell inside the vehicle after filling up (stopped fill before click). Repaired passenger side fuel sending unit under back seat at mb service but issue is still occurring after repair. During a 6 or 7 month period, mercedes has tried to fix on 5 occasions without success. They replaced all kinds of sensors in the engine dept and had the car for over a month but the issue was with the fuel related parts. They miss diagnosed the problem for the first 6 months. Finally mb diagnosed the issue late 2010 and replaced one of the sending units, the sending units were also replaced under recall for this vehicle in july 2008. Mb stated the car was now repaired but after leaving the dealership the check engine light came on again. The car has now failed air care, an additional expense. All issues relate to fuel tank, evap valve and defective fuel sending units. Hesitation, check engine light, rough engine operation fuel leaks and smell. This is clearly a safety issue, fuel vapors are combustible. Now mercedes has washed their hands of the issue and we (consumers and owners of e55 amg's) are left to repair the problem at our expense. The recall campaign #2008-020001 in 2008 has resulted in repeated failures of the sending units however mercedes benz is not taking responsibility. There are over 40 owners of these vehicles on line with exactly the same issues. Mb USA needs to accept responsibility and recall these vehicles for a fuel cell safety issue. There is a potential for combustible fuel vapors and I pray it does not happen before mb USA takes responsibility. Although the number of owners are only approximately 40 at this point, there may be many more out there with the e-class mb fuel leak issue. Mb USA needs to own up to the problem.

Filed Aug 27, 2010 · Fuel system · 38,400 miles · VA

I had a mercedes benz e-class recall to replace the fuel sending unit done in 2008 and a year and a half later I started smelling gas inside my car each time I filled up the tank. I ignored it in the beginning but after a while I got the check engine light on. I was sure it was related to the gas smell so I took my car to the dealer for inspection, and they said the fuel sending unit needed to be replaced completely for a cost of $1200 plus labor (unfortunately I did not buy the extended warranty). I know a car mechanic in my neighborhood who deals with quite a lot of high end cars and charges less than a third of what the dealer does, so right away I picked up my car, bought an o-ring for the fuel sending unit from the dealer's parts store (thanks to the research I did in a mercedes forum), and had it replaced by the local mechanic I know for $50. Ever since, no more leaks for now, but I do think this is a temporary solution and it may start leaking again after the sending unit's fuel cap or its o-ring starts melting again from overheating like some other members in the forum mentioned. This must be a design flaw with the car and definitely needs to be taken seriously before someone ends up loosing his/her life.