2012 Mercedes-Benz E350 fuel, hybrid & EV propulsion problems

Updated from NHTSA data · How we count

28 owners have reported fuel, hybrid & EV propulsion problems with the 2012 Mercedes-Benz E350, 27% of all complaints about this model year. The typical problem appeared around 124,900 mi.

Fuel, Hybrid & EV Propulsion complaints
28
Crashes
0
Fires
0
Injuries
0
Related recalls
1
Median mileage
124,900 mi

Specific components reported

Fuel, Hybrid & EV Propulsion covers: Fuel system (gas/diesel), fuel pump, hybrid and electric propulsion and battery.

ComponentComplaints
Fuel/propulsion system20
Fuel system, gasoline7
Fuel system, gasoline:delivery:fuel pump1

Fuel, Hybrid & EV Propulsion complaints across Mercedes-Benz E350 years

120051420061920071620081120099201019201128201292013302014220153201622017
Fuel, Hybrid & EV Propulsion complaints by model year. The 2012 is highlighted.

Mileage when the problem appeared

Under 10k10k–30k130k–60k260k–100k5100k–150k3150k+
Complaints that list mileage, grouped by odometer reading.

Related recalls

  • Recall 12V557000Dec 3, 20125,800 vehicles
    FUEL SYSTEM, GASOLINE

    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 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.

    Risk: If the fuel filter flange cracks, it will leak fuel which may lead to a fire if an external ignition source is present.

    Remedy: Mercedes-Benz will notify owners, and dealers will replace the fuel filter, free of charge. The recall campaign is expected to begin in February 2013. Owners may contact Mercedes-Benz at 1-800-367-6372.

What owners say

  1. Filed Jun 22, 202670,000 miDEFuel, Hybrid & EV Propulsion
    The contact owns a 2012 Mercedes-Benz E350. The contact stated that while driving at an undisclosed speed, there was an abnormal odor coming from the inside of the vehicle. No warning lights were illuminated. The vehicle was taken to an independent mechanic, where it was diagnosed with a fuel leak. The vehicle was not repaired. The contact researched and was made aware of NHTSA Campaign Number: 12V557000 (Fuel System, Gasoline); however, the VIN was not included in the…
    NHTSA complaint #11745590 · source
  2. Filed May 15, 202635,000 miAZElectrical SystemFuel, Hybrid & EV Propulsion
    The contact owns a 2012 Mercedes- Benz E350. The contact stated while operating the vehicle the odor of fuel was present coming from the vehicle. Upon inspection it was discovered that the fuel had leaked from the vehicle. The vehicle was taken to the local dealer who diagnosed that the fuel pump had failed and needed to be replaced. The vehicle was not yet repaired. Also, the contact indicated that the front driver seat heat element had overheated and cause melting to the…
    NHTSA complaint #11738080 · source
  3. Filed May 4, 2026NCFuel, Hybrid & EV PropulsionSuspension
    The failed component is a fuel pump, and it is available for inspection upon request. My safety and the safety of others was put at risk due to the following: 1) Sudden engine stalling 2) Dangerous power loss while accelerating 3) Potential fire risks; a damaged fuel pump assembley can cause fuel leaks and overheating due to insufficient fuel supply can increase the risk of explosion or fire. 4) Gas fumes from a fuel leak are highly harmful and dangerous. They are toxic to…
    NHTSA complaint #11735613 · source
  4. Filed Apr 8, 2025124,900 miCAFuel, Hybrid & EV Propulsion
    The contact owns a 2012 Mercedes-Benz E350. The contact stated while driving 5 MPH, the contact smelled fuel on the interior of the vehicle. No warning lights were illuminated. The contact stated that the dealer was contacted. The vehicle was taken to an independent mechanic where it was diagnosed and determined that the fuel filter sending unit needed to be replaced. The vehicle was being repaired. The contact related the failure to NHTSA Campaign Number: 12V557000 (FUEL…
    NHTSA complaint #11653552 · source
  5. Filed Mar 16, 2025VAFuel, Hybrid & EV Propulsion
    I have a 2012 E350 with less than 95000 miles and I see these vehicles were recalled in the past for their fuel tank manufacturer malfunction but my VIN number was not included. This car went numerous times to the mechanics and the fuel components fixed but it still leak gas and smells even when I do not drive the car. I spent over $15000 on this matter. This is now becoming a safety issue for me and my neighbors. I don't know what to do. Here is what happened. All began…
    NHTSA complaint #11648574 · source
  6. Filed Mar 12, 2025HIEngineFuel, Hybrid & EV PropulsionOther / Unknown
    Recall exists related to a potential issue with the high-pressure fuel pump, which could lead to engine stalling and increase crash risk. My 2012 Mercedes E350 stops the engine in the middle of the road couple of times and for some reason, its stops or shut off the engine completely. The last time I was pulling out on the main road and stop right there. I made a big traffic, and I was scared because I cannot start the car. The guy stops and help me to push out of the road,…
    NHTSA complaint #11647787 · source
  7. Filed Feb 10, 2025CAEngineFuel, Hybrid & EV Propulsion
    [XXX].The engine intake manifold on our 2012 Mercedes E350 (64,000 miles) EXPLODED with enough force to bend the hood up 2 inches. It was a damp cold morning & the engine had not been started in 12 hours. The car was not locked & the key fob was nowhere close. The fuel level was under 3/4 full. This happened when wife went to get something out of the car and when she pulled the passenger door handle to open - B O O M !!!! If this happened 30 minutes later, I would have been…
    NHTSA complaint #11641800 · source
  8. Filed Feb 7, 2025ARDriver Assistance & Safety TechFuel, Hybrid & EV PropulsionSeats & Seat Belts
    I am writing in regards to the 5 vehicle recalls that were for the make, and model of my car that is showing as having no recalls for. The recalls involved air bags, air bag software, fuel filter flange, and I am also wondering with the driver headrest deployment module if that is associated with an airbag module; as when I had purchased the vehicle I had found out that both my airbag modules had malfunctioned with showing the srs lights on the dash. I was told that Mercedes…
    NHTSA complaint #11641248 · source
  9. Filed Dec 27, 2024TXFuel, Hybrid & EV Propulsion
    Recently, I have noticed a strong gas smell emanating from the rear driver’s side of the vehicle. Upon further research, I discovered that there was an open recall affecting Mercedes E-Class vehicles of the same year for a similar issue. However,my vehicle’s VIN is not included in this recall. Given that my vehicle is experiencing the same problem described in the recall, I am concerned about the safety implications and believe this matter warrants immediate attention. I…
    NHTSA complaint #11632789 · source
  10. Filed Aug 2, 2024143,459 miVAFuel, Hybrid & EV Propulsion
    The contact owns a 2012 Mercedes-Benz E350. The contact stated that the filter flange was cracked. There was an abnormal fuel odor detected. The vehicle was leaking fuel near the fuel tank onto the ground. After refueling and driving five miles, the fuel was depleted to half a tank. There were no warning lights illuminated. The contact stated that the failure was related to NHTSA Campaign Number: 12V557000 (Fuel System, Gasoline). The contact called the local dealer and was…
    NHTSA complaint #11606084 · source
  11. Filed Apr 15, 2024183,000 miNCFuel, Hybrid & EV Propulsion
    The contact owns a 2012 Mercedes-Benz E350. The contact stated while operating the vehicle, there was an abnormal fuel odor inside the cabin of the vehicle. The cause of the failure was not yet available. The manufacturer was notified of the failure. The local dealer was not yet contacted. The contact was informed that the VIN was not included in the NHTSA Campaign Number: 12V557000 (Fuel System, Gasoline). The contact stated that the vehicle had experienced the failure…
    NHTSA complaint #11583047 · source
  12. Filed Feb 8, 2024TXFuel, Hybrid & EV Propulsion
    The top of the fuel pump is leaking (driver rear side, under the seat) and the leaking can be seen outside of the car as a moisture on the underside of the car. The fuel filter side (passenger side, under the seat) has a small amount of fuel moisture. The current mileage on car is 76,620 miles.
    NHTSA complaint #11570840 · source

Other 2012 Mercedes-Benz E350 problem areas

  • Brakes (20)
  • Electrical System (15)
  • Engine (14)
  • Suspension (14)
  • Other / Unknown (12)
  • Airbags (10)
  • Body & Structure (7)
  • Seats & Seat Belts (6)
  • Steering (5)
  • Driver Assistance & Safety Tech (4)
  • Transmission & Drivetrain (4)
  • Wheels & Tires (1)

Back to all 2012 Mercedes-Benz E350 problems →

Source: U.S. National Highway Traffic Safety Administration (NHTSA) Office of Defects Investigation public data. Complaints are submitted by owners and are not verified by NHTSA or by us; a complaint does not prove a defect exists. View this vehicle on NHTSA.gov Methodology