2016 Mercedes-Benz C300 fuel, hybrid & EV propulsion problems

Related recalls

• Recall 21V961000Dec 13, 2021139 vehicles
  FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:FUEL RAIL · FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:INJECTORS

  Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2019 AMG G63, C300, E300, G550, AMG GT63, AMG GT53, 2019-2020 A220, GLA250, GLC300, 2016 C300, 2020 AMG A35, AMG C43, AMG C63, CLA250, E350, E450, GLB250, GLE450, GLS450, GLS580, S560, and SL550 vehicles equipped with a gasoline engine. During the manufacturing process, particles may have been trapped between the fuel rail and injectors, which can cause a fuel leak.

  Risk: A fuel leak in the presence of an ignition source, such as hot engine or exhaust components, can increase the risk of a fire.

  Remedy: Dealers will replace the fuel rail and fuel injectors, free of charge. Owner notification letters were mailed April 22, 2022. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for the recall is 2022030003.

What owners say

1. Filed Apr 27, 2026CAElectrical SystemFuel, Hybrid & EV PropulsionOther / Unknown

   I’ve been driving my car since September when it was purchased I just got it from dealership 4/9/26 spent over $1100 and have been working like regular full time schedule, I wake up today 4/27/26 trying to work and car is stalling. Not sure what’s going on with these mechanics and technicians. I pay to dollar to ensure my family safety on the road here I am stuck without support due to my circumstances. Also, my car just idles the shuts off doesn’t turn mall the way on,…

   NHTSA complaint #11733961 · source
2. Filed Jan 29, 2026GAEngineFuel, Hybrid & EV Propulsion

   fuel lines/ clamps defective causing a fuel leak. vehicle could catch on fire and fumes are extremely strong inside the cabin. issue confirmed by Mercedes dealer, mentioned there is an extended warranty up to 120,000 miles. rejected mine because i was at 120,300 miles. had to pay out of pocket. no warning lights or anything just the really strong smell of fuel and fuel range dropping. this is a very common issue thats known and should be a recall.

   NHTSA complaint #11714200 · source
3. Filed Jan 2, 202660,000 miTXFuel, Hybrid & EV Propulsion

   The contact owns a 2016 Mercedes-Benz C300. The contact stated that whenever the fuel tank was full, there was a fuel-burning odor coming from the engine and entered the vehicle through the A/C vents. In addition, when the vehicle was cold, the odor was entering the vehicle through the A/C vents. No warning lights were illuminated. The vehicle was taken to a collision center specializing in foreign vehicles, where it was diagnosed that the fuel rail and injectors had a fuel…

   NHTSA complaint #11708321 · source
4. Filed Dec 9, 2025VAFuel, Hybrid & EV Propulsion

   An independent service center diagnosed my car as having a fuel leak stemming from the fuel rail and fuel injectors. This is a fire hazard due to a gas leak. There is a gas smell in the interior cabin that I noticed approximately one month ago. I believe this pertains to NHTSA ID #21V961, and I would like NHTSA to consider including my VIN in this recall.

   NHTSA complaint #11704054 · source
5. Filed Dec 5, 2025OHFuel, Hybrid & EV PropulsionOther / Unknown

   My 2016 Mercedes Benz C300 started giving off funky fumes last year in 2024, now the fumes have turned into the smell of gas in 2025. Everytime that I call the dealership on Rockside Rd./ Broadway, located in Bedford Ohio, they give me an excuse as to why it's not their responsibility to correct the issue. What can I do?

   NHTSA complaint #11703213 · source
6. Filed Nov 13, 2025MIFuel, Hybrid & EV Propulsion

   It's ridiculous i took my car to the dealer (mercedes-benz of novi, mi) yesterday 2016 mercedes c300 4matic for extended warranty on low pressure fuel hose as the car cabin smells like gas fumes to the point where it got me dizzy and nauseous and threw me in bed for a day. When i arrived there i was told yeah this is common on these cars and warranty will take care of it. Got a call later saying it will not be covered as the 10 year extended warranty surpassed my car as my…

   NHTSA complaint #11699111 · source
7. Filed Nov 12, 202598,000 miNVFuel, Hybrid & EV Propulsion

   The contact owns a 2016 Mercedes-Benz C300. The contact stated that there was a gasoline odor inside and outside the vehicle on several occasions, while driving at various speeds and while parked. The contact stated that the vehicle failed to accelerate as needed. The contact stated that there was no warning light illuminated, the fuel consumption increased, with the fuel gauge lowered more quickly. The vehicle was taken to an independent mechanic who saw gasoline pooling…

   NHTSA complaint #11698896 · source
8. Filed Oct 22, 2025MAFuel, Hybrid & EV Propulsion

   The contact owns a 2016 Mercedes-Benz C300. The contact stated that while driving at an undisclosed speed, the contact smelled a gasoline odor in the interior of the vehicle. No warning lights were illuminated. The vehicle was taken to the dealer, who determined that the fuel hose downstream of the fuel pump was leaking. The vehicle was not repaired. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 18V837000 (Fuel System, Gasoline);…

   NHTSA complaint #11694990 · source
9. Filed Jun 9, 2025FLEngineFuel, Hybrid & EV Propulsion

   Positive Crankcase Ventilation Regulator Valve Performance Code P052E indicates a fault in the Positive Crankcase Ventilation Regulator Valve Performance for a predetermined.

   NHTSA complaint #11665952 · source
10. Filed Feb 14, 202553,000 miNJFuel, Hybrid & EV Propulsion

    The contact owns a 2016 Mercedes-Benz C300. The contact stated that there was an abnormal fuel odor inside the vehicle when the heater was activated. The contact stated that the cabin air filter was replaced; however, the odor was lingering inside of the vehicle. There was no warning light illuminated. The vehicle was taken to an independent mechanic to be diagnosed and the contact was informed that there was gas leaking onto the transmission and that the fuel rail, fuel…

    NHTSA complaint #11642756 · source
11. Filed Jan 23, 2025FLFuel, Hybrid & EV Propulsion

    During cold weather there is always a gasoline smell when starting the engine that eventually goes away. On 01/20/2025 the smell was so intense that I decided to stop the engine and leave the car outside the garage just in case. Upon opening the hood, I noticed an amount of a type of liquid similar to gasoline right on the undercarriage protector covers. I could not reach with my hands but instead I used a wood stick that I had in the garage. I reached the liquid and…

    NHTSA complaint #11637884 · source
12. Filed Jan 21, 2025VAFuel, Hybrid & EV Propulsion

    Smells like gas and my auto group gave me a recall campaign bulletin showing recall for my make model and year (Mercedes c300 2016), but my VIN doesn’t show it as being covered by that recall.

    NHTSA complaint #11637361 · source

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