I started to smell gas after filling my tank. Once the gas level went down, the odor disappeared. I took car to dealer who said car needs new gas tank (issue on top of tank) and cost is approx $5K for parts and labor. I started reading about same exact issue on same C300 model and year 2011. I was advised that car with high mileage of 114,000 was not worth repairing even though there are no dents, cosmetically very nice, new tires, always dealer maintained. I have the dealer inspection paperwork
2011 Mercedes-Benz C300 fuel system complaints
Page 2 of 3: complaints 11 to 40 of 44, newest first, as owners wrote them.
The contact's client owns a 2011 Mercedes-Benz C300. The contact stated that the vehicle's owner had complained of an abnormal fuel odor coming from the vehicle. There was no warning light illuminated. Upon inspecting the vehicle, the contact discovered that fuel was spraying out of the fuel pump onto the exhaust. The contact was able to replace the fuel pump and correct the failure. Upon investigation, the contact discovered the federal safety agency Campaign Number: 12V557000 (Fuel System, Gasoline) which he linked to the failure. The dealer nor the manufacturer had yet to be notified of the failure. The vehicle had been repaired. The failure mileage was approximately 142,000.
The contact owns a 2011 Mercedes-Benz C300. The contact stated that after refueling the vehicle and driving a short distance, there was a burning odor coming from inside and outside the vehicle. The traction control warning light was illuminated. The contact had taken the vehicle to a certified mechanic who replaced the fuel cabinet. The burning odor persisted. The contact was informed that the failure was related to the federal safety agency Campaign Number: 12V557000 (Fuel System, Gasoline) however, the VIN was not included. The manufacturer was made aware of the failure. The approximate failure mileage 12,800.
Every time I fill up the gas tank, I smell gas in the passenger side back seat close to where you pump the gas?
Gas is leaking under the car. Gas dripping location is by the rear passenger tire.
When the fuel tank is full, there is a strong smell of gasoline at the rear of the car. The gasoline odor is extremely strong on the outside, and very strong on the inside. (This is NOT due to overfill or spillage). I searched some Mercedes-Benz blog sites, and discovered others are experiencing similar problems since 2019 to now. The strong gasoline odor can likely pose a health risk. There is also real concern about potential fire or explosion risks.
07/31/2021 Fuel smell in the cabin, and in the garage, and a small paddle of gas formed under the car, but at that time I wasn't sure if it was the A/C condense, or gas. Took car out of the garage and left it there overnight. Drove the car next day and the smell was less noticeable, and it disappeared in about two days. Next two weeks did not ill up the tank completely, and there was no smell or leak. Yesterday, Sunday, Aug 22nd, I filled the car with gas again until the pump stopped, and the smell came back instantly, as I was driving home. Parked the car in the driveway and immediately noticed a large paddle of gas forming under the left rear wheel. Removed back seat and both fuel tank pump metal covers, and both plastic fittings/covers were leaking gas, more so on the driver's side. There are hairline fractures in both covers, and both are leaking gas. Removed both covers and siphoned gas out of the car until the leak stopped. I went to Hendrick's MB of Durham and asked about the recall, they denied that my car qualifies. The parts alone were quoted at $1229.12, without labor, and I was told fuel tank worth about $1,000.00 (without labor) may need to be changed as well. the federal safety agency recall campaign 2013020002 mentions my car. My defect is worse than most because both sides leak gas, not just the pump, and both have visible with naked eye fractures that leak gas. I cannot understand how is my risk of fire and death while driving less than that of other MB's with exactly the same failure, in the same class, and the same C300, for the same year. I expect the cost of repair with labor to be more than $3,500 .
The contact owns a 2011 Mercedes-Benz C300. The contact stated he started to smell an abnormal fuel odor and noticed a spot where fuel had leaked onto the garage floor. The contact stated that the check engine warning light was illuminated. The contact stated that while inspecting the vehicle, he noticed both fuel tank covers were cracked. The contact drove another vehicle to the local dealer and made them aware of the failure. The vehicle was not diagnosed or repaired. Upon investigation, the contact associated the failure with the federal safety agency Campaign Number: 12V557000 (Fuel System, Gasoline) however, the VIN was not included. The manufacturer had been informed of the failure. The failure mileage was approximately 82,000.
A strong smell of gas is coming from back seat (passenger side)
Car interior smells of fuel after filling up the tank. The smell is also noticeable when parked in the garage. My mercedes e350 also had the same issue and it was determined that it was a defective fuel cell sending unit.
Car will smell like fuel after filling up on full tank. I took the car into mercedes of greenway in downtown houston. They discovered a leak in fuel system, it's causing the check engine light to come on because of the inadequate pressure. When I had the car parked in my garage, my whole house smelled like fuel ! It's a big safety issue/fire hazard. I've seen other 2011 c300 are experiencing same issues.
Filled gas tank full start gasoline is leaking underneath the vehicle - location rear passenger side. Placed a pan and collected approximately a quart of gasoline in 4.5 hours.
Plastic top of fuel pump located under back seat cracks and fuel vapors enter the car. Believe the part is defected to crack for no reason or under stress.
Tl* the contact owns a 2011 mercedes-benz c300. The contact stated that after refueling his vehicle, there was an abnormal fuel odor throughout the vehicle. The contact also stated that the check engine light flashed intermittently while driving at various speeds. The vehicle was taken to mercedes-benz of jackson (455 steed rd, ridgeland, ms 39157) where the mechanic discovered a crack in the fuel line that needed to be replaced. The contact was informed that there were no recalls on his vehicle. The vehicle was then taken to an independent mechanic who associated the federal safety agency campaign number: 12v557000 (fuel system, gasoline) with his failure however, his VIN was not included in the recall. The contact attempted to reach the manufacturer but was unsuccessful. The vehicle was not repaired. The failure mileage was approximately 87,000.
My 2011 c300 smells like gasoline inside and outside after I fill the tank. The smell subsides after the gas tank reaches about half tank mark. During my research I came across a fuel system recall: the federal safety agency campaign id number: 12v557000 / manufacturer campaign number: 2013010004. My 2011 c300 is one of the vehicles listed. I contacted mercedes benz customer care at 800‑367‑6372; customer care stated that the VIN was not included in a recall. The current mileage is 78,381
Strong fuel odor inside cabin and around vehicle after fueling. Issue started over last couple of months and only when fueled to close to full.
Vehicle continuously emitting gas vapors inside vehicle and leaking gas inside behind and/or underneath back driver side seat. Vin (xxxx) redacted to protect personally identifiable information pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6)
Tl* the contact owns a 2011 mercedes benz c300. The contact stated that there was a strong odor of fuel around the vehicle while the vehicle was parked in the garage. The contact noticed fuel on the ground when the vehicle was moved out of the garage. The vehicle was not taken to a dealer or an independent mechanic for a diagnostic testing. The manufacturer was not made aware of the failure. The failure mileage was approximately 80,000. The VIN was not available.
I began smelling gas in the cab of the vehicle. After refueling, the vehicle was leaking gas from the right side in the driveway of my residence and the odor of gas in the cab began to increase. Merecedes personnel refused to acknowledge other issues and wanted to begin at their starting points regarding repairs. When this recall was addressed, I was informed it did not apply to my vehicle. After a lengthy elimination process, we learned the fuel pump flange had failed in this model as it has in other similar models. Merecedes at this point refused to extend a warranty consideration so I sought out an independent mechanic to repair it. Now mercedes is refusing to reimburse the cost of the repairs.
When I fill up the car with gas, my car smells like gas inside and out until it reaches about a half a tank. This is very dangerous and I've read that several other mercedes are having the same issue. I've contact mercedes but they say it's not on a recall list.
Tl* the contact owns a 2011 mercedes-benz c300. The contact stated that the vehicle emitted a fuel odor. The contact took the vehicle to mercedes-benz of ontario (located at 3787 e guasti rd, ontario, ca 91761, 909‑212‑8400) who inspected the vehicle and noticed that the fuel filter was fractured and caused fuel to leak underneath the rear seats. The contact stated that the vehicle was not included in the federal safety agency campaign number: 12v557000 (fuel system, gasoline). The fuel filter flanges were replaced. The contact called the manufacturer, but was unable to speak with an agent. The approximate failure mileage was 130,000.
Tl* the contact owns a 2011 mercedes-benz c300. Every time the vehicle was filled with fuel, a strong fuel odor entered the vehicle. The contact informed mercedes-benz of houston north (17510 north fwy, houston, tx 77090, (281) 305-8970) of the failure. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 102,000.
Car leaks gasoline when above 3/4 of tank in the right rear area by the fuel filler line. Smell gas and see gas leaking.
Takata recall had vehicle checked after consistent smell of fuel upon filling up the car. Mechanic discovered the fuel filler neck to be faulty because of plastic connector fuel tank.
Strong fuel odor every time filled up the gas tank (full tank)
Gas leak .. Causing car too smell like gas when you fill up
Tl* the contact owns a 2011 mercedes-benz c300. The contact stated that the vehicle experienced a complete loss of power. Upon inspection, the contact found that the vehicle retained excessive water. The vehicle was taken to benzel-bunch motor car (28 grand ave, englewood, nj) where it was diagnosed that the vehicle's drains were clogged and they would need to perform a flush to remove the water and rewire the vehicle. The vehicle was not repaired. The manufacturer was not made aware of the failure. The VIN was unknown. The failure mileage was approximately 79,000.
Tl* the contact owns a 2011 mercedes-benz c300. When the fuel tank was full, there was a strong fuel odor inside the vehicle on the rear passenger side. The failure occurred while driving various speeds. While the vehicle was parked, the odor was very strong inside and outside the vehicle. The contact had to roll down the windows for the fuel odor to subside. The failure occurred without warning. When the fuel tank was half full, there was no fuel odor in the vehicle. The vehicle was not taken to the dealer. The vehicle was not diagnosed or repaired. The manufacturer was contacted at 800‑367‑6372 and stated that the VIN was not included in a recall; therefore, the contact had to pay for the repair. A case number was not provided. The approximate failure mileage was 64,000.
There appears to be is a crack on the fuel filter. This crack has resulted in a fuel leak, increasing the risk of a fire. The top of the fuel sending units are leaking. High fumes odor inside and out of the vehicle both when it is stationary and in motion regardless if it's on the highway, turning or city street.
Tl* the contact owns a 2011 mercedes-benz c300. The contact stated that a strong fuel odor was present inside the cabin of the vehicle. When fueling the vehicle, strong fuel vapors leaked from the vehicle. The vehicle was not diagnosed or repaired. The manufacturer was called and informed the contact that the vehicle was not included in the federal safety agency campaign number: 12v557000 (fuel system). The failure mileage was approximately 127,000.
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