Consumer Complaints


Fail datemilesoccurencesPurchase date
FUEL/PROPULSION SYSTEM
10/28/201155000
 Normal fill up of gas tank causes fuel to leak out of top of sending unit. the seam just below the electrical connection powering the units motor seems to be weakly and/or improperly joined, allowing raw gas to leak out and pool into a small compartment under the drivers side rear seat. when i purchased car used 14 months ago, i noticed extreme gas smell after 1st night in the garage. i immediatly took vehicle back to dealer where they replaced sending unit under 30 day warrenty. now only 14months later after a normal fill up at a gas station and then driving home, i noticed a very strong gas smell as i entered the garage the next morning. i have found that i am not the only one with this issue. online research lead me to information that gave me the details neccesary to locate and remove the access panel under the drivers side rear seat. after removing the top access panel under the seat i found (rough estimate) a measuring cup of gasoline that was pooled around the base of the sending unit. so much fuel had leaked that it had overflowed the pumps recess and had pooled into the surrounding (rubber/plastic) recess that seals the top of the sending unit from the outside.
10/01/201154000
 Tl- the contact owns a 2007 mercedes benz e63. the contact stated that after refueling and then parking the vehicle, he noticed a large gasoline fuel leak. the vehicle was taken to the dealer where they advised that the fuel sending unit malfunctioned, causing the fuel leak. the fuel sending unit was repaired however, the failure recurred one year later. the manufacturer was not contacted. the failure mileage was approximately 54,000. the current mileage was approximately 74,000. kmj
10/28/201155000
 Normal fill up of gas tank causes fuel to leak out of top of sending unit. the seam just below the electrical connection powering the units motor seems to be weakly and/or improperly joined, allowing raw gas to leak out and pool into a small compartment under the drivers side rear seat. when i purchased car used 14 months ago, i noticed extreme gas smell after 1st night in the garage. i immediatly took vehicle back to dealer where they replaced sending unit under 30 day warrenty. now only 14months later after a normal fill up at a gas station and then driving home, i noticed a very strong gas smell as i entered the garage the next morning. i have found that i am not the only one with this issue. online research lead me to information that gave me the details neccesary to locate and remove the access panel under the drivers side rear seat. after removing the top access panel under the seat i found (rough estimate) a measuring cup of gasoline that was pooled around the base of the sending unit. so much fuel had leaked that it had overflowed the pumps recess and had pooled into the surrounding (rubber/plastic) recess that seals the top of the sending unit from the outside.
10/01/201154000
 Tl- the contact owns a 2007 mercedes benz e63. the contact stated that after refueling and then parking the vehicle, he noticed a large gasoline fuel leak. the vehicle was taken to the dealer where they advised that the fuel sending unit malfunctioned, causing the fuel leak. the fuel sending unit was repaired however, the failure recurred one year later. the manufacturer was not contacted. the failure mileage was approximately 54,000. the current mileage was approximately 74,000. kmj
10/28/201155000
 Normal fill up of gas tank causes fuel to leak out of top of sending unit. the seam just below the electrical connection powering the units motor seems to be weakly and/or improperly joined, allowing raw gas to leak out and pool into a small compartment under the drivers side rear seat. when i purchased car used 14 months ago, i noticed extreme gas smell after 1st night in the garage. i immediatly took vehicle back to dealer where they replaced sending unit under 30 day warrenty. now only 14months later after a normal fill up at a gas station and then driving home, i noticed a very strong gas smell as i entered the garage the next morning. i have found that i am not the only one with this issue. online research lead me to information that gave me the details neccesary to locate and remove the access panel under the drivers side rear seat. after removing the top access panel under the seat i found (rough estimate) a measuring cup of gasoline that was pooled around the base of the sending unit. so much fuel had leaked that it had overflowed the pumps recess and had pooled into the surrounding (rubber/plastic) recess that seals the top of the sending unit from the outside.
10/01/201154000
 Tl-the contact owns a 2007 mercedes benz e63. the contact stated that after filling up his fuel tank and then parking the vehicle, he noticed a large puddle of fuel on the ground. the vehicle was later taken to the dealer. after diagnosis they advised him that the fuel sending unit malfunctioned causing the leak. the vehicle was repaired for the fuel sending unit. approximately one year later the failure re occurred. the manufacturer was not contacted. the failure mileage was approximately 54,000. the current mileage was approximately 74,000. tb
02/03/2013340001
 After filling the car with gasoline and parking in my garage there was a overwhelming odor of gasoline as well as pooling liquid gasoline under the driver side rear wheel. i've owned the car less than a week. *tr
02/03/201334000
 After filling the car with gasoline and parking in my garage there was a overwhelming odor of gasoline as well as pooling liquid gasoline under the driver side rear wheel. i've owned the car less than a week.
04/29/2012527461
 I had just purchased the car the day before (april 28, 2012). when i filled the fuel tank, i notice a strong smell of gasoline. this has occurred every time i fill the car with fuel. at first i thought it was a fuel injector leaking down and something i would have to address in the near future. however, last week i went to drive the car after i had just filled the tank with fuel. the car was in my garage and the smell of gasoline was very strong. i noticed a puddle of fluid in front of the left rear tire. my first reaction was it was condensation from the air conditioning system. i bent down to look at it and then i notice a separate condensation tail coming from the middle of the car. i sampled the fluid stream from the middle of the car and indeed it was water. however when i looked at the other puddle, i notice a constant and rapid drip coming from the shield under the gas tank. when i sampled the puddle it was pure gasoline. this was most disconcerting as this fuel leak is very close to the exhaust and the brakes. either one of which could ignite the fuel. i am a mechanical engineer with considerable auto racing experience, so i know how dangerous this can be. i called mercedes benz of sugar land on monday (11/12/12) and talked to a service representative. i told him of the fuel leak and he told me there was no reported issues and no service bulletins for such a problem. i was also told to bring the car in and they would repair it at my expense. having paid my way through my first degree as a mechanic as well as designing racing equipment for ford motor company, i believe this should be covered under warranty as part of the emission system. this is of course secondary and in addition to the obvious safety hazard this condition presents. *tr
04/29/201252746
 I had just purchased the car the day before (april 28, 2012). when i filled the fuel tank, i notice a strong smell of gasoline. this has occurred every time i fill the car with fuel. at first i thought it was a fuel injector leaking down and something i would have to address in the near future. however, last week i went to drive the car after i had just filled the tank with fuel. the car was in my garage and the smell of gasoline was very strong. i noticed a puddle of fluid in front of the left rear tire. my first reaction was it was condensation from the air conditioning system. i bent down to look at it and then i notice a separate condensation tail coming from the middle of the car. i sampled the fluid stream from the middle of the car and indeed it was water. however when i looked at the other puddle, i notice a constant and rapid drip comping from the shield under the gas tank. when i sampled the puddle it was pure gasoline. this was most disconcerting as this fuel leak is very close to the exhaust and the brakes. either one of which could ignite the fuel. i am a mechanical engineer with considerable auto racing experience, so i know how dangerous this can be. i called mercedes benz of sugar land on monday (11/12/12) and talked to a service representative. i told him of the fuel leak and he told me there was no reported issues and no service bulletins for such a problem. i was also told to bring the car in and they would repair it at my expense. having paid my way through my first degree as a mechanic as well as designing racing equipment for ford motor company, i believe this should be covered under warranty as part of the emission system. this is of course secondary and in addition to the obvious safety hazard this condition presents.
10/02/2012675001
 After filling the fuel tank, the smell of fuel was such to indicate a leak. after many hours the smell is still constant. *tr
10/02/201267500
 After filling the fuel tank, the smell of fuel was such to indicate a leak. after many hours the smell is still constant.
08/08/2012615001
 Similar to the complaints filed by mercedes benz w211 members owning 2003 - 2006 e55 amg's, my 2007 w211 e63 amg is experiencing fuel leaking from the fuel sender/pump assembly unit. i noticed a distinct gas odor in my garage the morning after i filled up with gas. i checked the fuel sender/pump assembly area as is stated in many forums where owners are complaining about this commonly occurring issue. there was fuel puddled in the cup of the assembly. i replaced the seal hoping that it would correct the issue but it did not. i filled up again with fuel on tuesday, august 14 and within minutes there was fuel puddled again in the assembly area and a distinct fuel smell on the outside of the vehicle. *tr
08/08/201261500
 Similar to the complaints filed by mercedes benz w211 members owning 2003 - 2006 e55 amg's, my 2007 w211 e63 amg is experiencing fuel leaking from the fuel sender/pump assembly unit. i noticed a distinct gas odor in my garage the morning after i filled up with gas. i checked the fuel sender/pump assembly area as is stated in many forums where owners are complaining about this commonly occurring issue. there was fuel puddled in the cup of the assembly. i replaced the seal hoping that it would correct the issue but it did not. i filled up again with fuel on tuesday, august 14 and within minutes there was fuel puddled again in the assembly area and a distinct fuel smell on the outside of the vehicle.
01/01/2012480001
 Car began smelling of raw fuel after being filled up. found that the fuel level sending unit was leaking fuel out of the top of the fuel tank. a puddle of fuel was visible on top of the sending unit and was leaking onto the ground. this posed a significant fire risk and the car was moved outside. i have contacted mbusa and they have offered no help, saying this isn't a known issue. after researching the issue i have found it is widespread and affects multiple models. we can no longer fill the fuel tank without having a puddle of fuel left under the car. *tr
01/01/201248000
 Car began smelling of raw fuel after being filled up. found that the fuel level sending unit was leaking fuel out of the top of the fuel tank. a puddle of fuel was visible on top of the sending unit and was leaking onto the ground. this posed a significant fire risk and the car was moved outside. i have contacted mbusa and they have offered no help, saying this isn't a known issue. after researching the issue i have found it is widespread and affects multiple models. we can no longer fill the fuel tank without having a puddle of fuel left under the car.