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3.0

definitely annoying
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
46,174 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2011 Mercedes-Benz C300 fuel system problems

fuel system problem

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2011 Mercedes-Benz C300 Owner Comments (Page 2 of 2)

« Read the previous 20 complaints

problem #15

Nov 012019

C300

  • 93,800 miles

A D V E R T I S E M E N T S

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.

- Alamogordo, NM, USA

problem #14

May 012019

C300

  • miles
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.

- Haslet, TX, USA

problem #13

Aug 012019

C300 6-cyl

  • Automatic transmission
  • 130,000 miles
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 NHTSA 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.

- Corona, CA, USA

problem #12

Jul 292019

C300

  • 102,000 miles

A D V E R T I S E M E N T S

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.

- Houston, TX, USA

problem #11

May 012019

C300

  • 50,000 miles
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.

- None, AL, USA

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problem #10

Nov 172018

C300

  • 120,426 miles
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.

- Rocky Mount, NC, USA

problem #9

Nov 242018

C300

  • 72,000 miles

A D V E R T I S E M E N T S

Strong fuel odor every time filled up the gas tank (full tank)

- Tulsa, OK, USA

problem #8

Aug 012018

C300

  • 0 miles
Gas leak.. causing car too smell like gas when you fill

- San Antonio, TX, USA

problem #7

Jun 012017

C300

  • 79,000 miles
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.

- Teaneck, NJ, USA

problem #6

Nov 052017

C300

  • 64,000 miles
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.

- Long Beach, CA, USA

problem #5

Aug 022017

C300

  • 0 miles

A D V E R T I S E M E N T S

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.

- Snellville, GA, USA

problem #4

Jun 142017

C300

  • 127,000 miles
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 NHTSA campaign number: 12V557000 (fuel system). The failure mileage was approximately 127,000.

- Buckeye, AZ, USA

problem #3

Dec 232016

C300

  • 150 miles
About 5 months ago I smelled a strong odor of gas fumes omitting from my car while I was driving on the freeway. I live in southern California where the weather gets extremely hot. I brought my car in to get checked out at a local mechanic shop on 12/23/2016 and it turns out that the fuel tank was cracked and leaking fuel. I looked on the NHTSA database and found a recall reported on 12/03/2012 regarding a fuel filter leak as mentioned below. NHTSA campaign number: 12V557000 manufacturer Mercedes-Benz usa, llc. Components fuel system, gasoline summary Mercedes-Benz is recalling certain model year 2011-2012 S400, S550, S550 4matic, S63 amg, C300, C300 4matic, E350, glk350, glk350 4matic, CL550 4matic, and CL63 amg vehicles I manufactured from April 18, 2011, through July 12, 2011. Due to an irregularity stemming from the molding process of the fuel filter flange, the fuel filter flange may crack when operated in high temperatures. Although the recall was specifically for Mercedes Benz C300 manufactured in 2011, I believed it should also extend to the previous year; 2010. Im reporting this to see if any other cars had the same exact issue as what was described above. I believe this is a definite fire risk especially to those living in very hot locations such as southern California. I would like to know if the recall covers my car and if so I would like to get reimbursed for the services I paid to the mechanic shop. Thank you.

- Alhambra, CA, USA

problem #2

Oct 152016

C300

  • 80,000 miles
I had to pay for a fuel filter leak due to a crack of the fuel filter flange and was told this was not a recall on my vehicle, but when I was looking at recalls for my year and model I came across NHTSA campaign number-12V557000 with a recall on merceded-Benz C300 4 matic model year 2011-2012 for fuel leak due to cracked flange. I asked the dealership about it even though that is exactly what had to be replaced and said it did not affect my vehicle, I called Mercedes Benz at the number provided in the remedy section of the announcement and was told it was not my vehicle, please advise what I should do next, thank you

- Augusta, GA, USA

problem #1

Sep 042015

C300

  • 51,000 miles
I filled my gas tank up Friday evening, went home and parked my vehicle in the garage. The next morning there was a strong smell of gasoline coming from the car. I took it to the Mercedes dealer and they said the seal and cap under the passenger back seat needed to be replaced. They wanted to charge $434. Not only is this dangerous it should not be the consumers responsibility when the manufacturer provided faulty material.

- Maricopa, AZ, USA

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