2017 Mercedes-Benz E300 engine problems

Updated from NHTSA data · How we count

33 owners have reported engine problems with the 2017 Mercedes-Benz E300, 32% of all complaints about this model year. The typical problem appeared around 82,000 mi.

Engine complaints
33
Crashes
0
Fires
0
Injuries
0
Related recalls
1
Median mileage
82,000 mi

Specific components reported

Engine covers: stalling, loss of power, oil consumption, overheating.

ComponentComplaints
Engine32
Engine and engine cooling1

Mileage when the problem appeared

1Under 10k10k–30k30k–60k460k–100k100k–150k150k+
Complaints that list mileage, grouped by odometer reading.

Related recalls

  • Recall 17V114000Feb 23, 2017307,629 vehicles
    ELECTRICAL SYSTEM:STARTER ASSEMBLY · ENGINE AND ENGINE COOLING:ENGINE

    Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2015-2017 C300 4Matic, C300, CLA250, CLA250 4Matic and CLA45 AMG vehicles, 2017 C300 4Matic Cabrio, C300 4Matic Coupe, C300 Cabrio, C300 Coupe, E300, E300 4Matic, E400 4Matic Wagon, E43 AMG 4Matic, GLA250, GLA250 4Matic and GLC300 4Matic Coupe vehicles and 2016 C350e and GLC300 vehicles and 2016-2017 C450 4Matic AMG Sport and GLC300 4Matic vehicles. In the event that the engine or transmission cannot turn over, the starting current limiter may overheat from the repeated attempts of the starter motor attempting to start the vehicle.

    Risk: If the starting current limiter overheats, the surrounding components can melt, increasing the risk of a fire.

    Remedy: MBUSA will notify owners, and dealers will install an additional fuse in the electrical line to the starter, free of charge. The recall began August 31, 2017. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2017080002.

What owners say

  1. Filed Aug 4, 2026CAEngine
    My vehicle has about 68k miles, while driving on freeway all of sudden the car engine started to shake and check engine light came on dashboard. This engine shaking would stop when vehicle was being driven at high speed. Upon returning home I checked the DTC codes and had P300, P301 engine misfire codes. My mechanic suggested to have spark plugs and Ignition coil#1 to be changed. I bought new plugs from dealer for the replacement. When my mechanic completed this repair bit…
    NHTSA complaint #11754872 · source
  2. Filed Apr 22, 2026VAElectrical SystemEngine
    My car is not accelerating when I shift into drive or reverse. It says “reversing not possile-service required” error. Out the blue. There is a known recall on these model cars but Mercedes benz is saying its vin specific and mine is not covered even though I am experiencing the exact same issue. Recall date- 2017-02-07 Recall no. 17V078000
    NHTSA complaint #11732941 · source
  3. Filed May 14, 2025MDEngineTransmission & Drivetrain
    Mercedes-Benz E300 is affected by a Transmission Control Module (TCM) recall, you might notice these symptoms: - Delayed or rough shifting: The transmission may hesitate or struggle to change gears. - Slipping gears: The car might unexpectedly shift out of gear or fail to stay in the correct gear. - Unresponsive transmission: You may experience difficulty accelerating or feel like the car is stuck in a lower gear. - Warning lights: The check engine or transmission warning…
    NHTSA complaint #11660892 · source
  4. Filed Dec 24, 2024MAEngine
    The vehicle is getting stuck in parking and can not shift out of park. The issue first happened at the dealership when looking into an auxillary battery issue which has since been resolved. After over 30 minutes of trying to resolved the dealer was able to get the vehicle off the lift and switch the gear back into drive. Since then two days later the batteries were replaced and the same issue happen again (stuck in park) and now I see a transmission light on as well. I am…
    NHTSA complaint #11632282 · source
  5. Filed Dec 4, 2024CAEngine
    PCV regulator valve failure at69,000 miles on my 2017 Mercedes E300.. I understand this is common before 100,000 miles with the four cylinder turbo, I feel there should be a recall and be replace at Mercedes dealers cost. (to replace cost is around $2,000 about 7 hours labor I was told)
    NHTSA complaint #11628826 · source
  6. Filed Oct 11, 2024VAEngineFuel, Hybrid & EV Propulsion
    malfunctioning positive crankcase ventilation (PCV) valve: Issue: The partial-load ventilation valve in the intake line assembly does not work as intended, causing the check engine light to come on. Recommended action: the intake line assembly may need to be replaced. A malfunctioning positive crankcase ventilation (PCV) valve can cause a number of engine issues, including: Increased oil consumption, Leaks, Reduced fuel efficiency, and The engine releasing more pollutants.
    NHTSA complaint #11619347 · source
  7. Filed Jul 23, 202485,000 miNYEngineTransmission & Drivetrain
    The contact owns a 2017 Mercedes-Benz E300. The contact stated while driving at an undisclosed speed, the accelerator pedal was depressed; however, the vehicle failed to accelerate as intended. The contact stated that the check engine warning light illuminated. Additionally, the contact stated that when the gear shifter was shifted into reverse, there was an abnormally loud sound coming from the transmission. The contact turned off and restarted the vehicle and the vehicle…
    NHTSA complaint #11603992 · source
  8. Filed Jul 3, 202472,000 miCAEngineFuel, Hybrid & EV Propulsion
    The contact owns a 2017 Mercedes-Benz E300. The contact stated while driving at an undisclosed speed, the accelerator pedal was depressed; however, the vehicle failed to accelerate as intended. Additionally, the vehicle stalled, and the engine misfired. The contact stated that the check engine warning light was illuminated. The vehicle was taken to the dealer where it was diagnosed with failed fuel injectors and failed fuel rail. The contact was informed that the fuel…
    NHTSA complaint #11598591 · source
  9. Filed May 25, 2024IAEngineFuel, Hybrid & EV PropulsionTransmission & Drivetrain
    The car is running poorly. Smell of fumes inside the car. Not drive able due to risk of engine damage including fires and exposure to dangerous fumes. Part is on back order and that is not a guarantee that the part will not fail again after fixed. Many people report continual replacement of the part. Positive Crankcase Ventilation Regulator Valve Performance: The valve for crankcase ventilation has a malfunction. Crankcase ventilation actuator is blocked .
    NHTSA complaint #11590732 · source
  10. Filed May 17, 2024MSEngine
    I am writing in regards to a constant issue that a great percentage of people including myself, are experiencing with the engine within the 2017 Mercedes E300. The cam adjusters are easily going bad or are malfunctioning causing the timing in the motor to be defected which makes the car stall and shut off even while driving. Giving that this is happening to a great amount of people with this particular vehicle across the US, we feel that mercedes benz should take some…
    NHTSA complaint #11589318 · source
  11. Filed May 16, 2024GAEngineOther / Unknown
    There is a pvc problem.It has to do with the emission I found that is a common factory problem.Part is back order.Other cars with this issue and same part number are being recalled.
    NHTSA complaint #11589127 · source
  12. Filed Mar 16, 2024OKEngine
    Positive Crankcase ventilation Code P052E Mercedes has redesigned the part to prevent recurrent failure issues. Apparently, a very common fail due to poor design that allows condensation in the line causing the valve to fail. Mercedes charges $1500 to $2300 to repair.
    NHTSA complaint #11577799 · source

Other 2017 Mercedes-Benz E300 problem areas

  • Fuel, Hybrid & EV Propulsion (24)
  • Electrical System (17)
  • Transmission & Drivetrain (15)
  • Other / Unknown (14)
  • Steering (10)
  • Driver Assistance & Safety Tech (8)
  • Lighting (4)
  • Airbags (3)
  • Body & Structure (3)
  • Acceleration & Cruise Control (2)
  • Brakes (2)
  • Seats & Seat Belts (1)
  • Visibility & Wipers (1)
  • Wheels & Tires (1)

Back to all 2017 Mercedes-Benz E300 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