39 of the
185 complaints filed about the Mercedes Benz E300
are about the engine —
21% of everything owners reported.
The worst model year for it is 2017.
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 noticed vehicle still had misfire. He conducted compression test and found only 20PSI pressure is cylinder 1 and suggested a tear-down or engine replacement. I talked to another shop and described the issue and was informed that this is a common issue in Mercedes E300 to develop misfire in either cylinder 1 or 2. I found similar issues described by many owners on various forums online as well. Currently Mercedes has no recall for this issue.
NHTSA complaint #11754872 — an unverified report by a vehicle owner.
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 — an unverified report by a vehicle owner.
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 light may illuminate on the dashboard. - Limp mode activation: The vehicle may enter a fail-safe mode, restricting speed and performance to prevent further damage.
NHTSA complaint #11660892 — an unverified report by a vehicle owner.
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 not sure if the dealership noticed this when they had the issue in the shop. There was a previous transmission recall on the vehicle, which Mercedes said was previously addressed. My concern is that this can happen while driving which would be an extreme safety risks to myself and others. I don't believe I had any gear shift repairs since I owned the vehicle and the recall for my specific VIN may have been missed or not fully addressed. As of now I am unable to operate the vehicle and would like a recall reissued to resolve the problem. Thank you in advance for your assistance.
NHTSA complaint #11632282 — an unverified report by a vehicle owner.
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 — an unverified report by a vehicle owner.
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 — an unverified report by a vehicle owner.
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 had self-corrected the issue. The vehicle was taken to an independent mechanic where it was diagnosed with solenoid failure in the valve body. The contact was informed that the solenoid needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and a case was filed. The contact was advised to contact the NHTSA Hotline to report the failure. The failure mileage was approximately 85,000.
NHTSA complaint #11603992 — an unverified report by a vehicle owner.
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 injectors and the fuel rail needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 72,000.
NHTSA complaint #11598591 — an unverified report by a vehicle owner.
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 — an unverified report by a vehicle owner.
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 responsibility in fixing this issue and not just post bulletins on the problem, cause its a safety issue and it costs people alot of money for a defect of this sort.
NHTSA complaint #11589318 — an unverified report by a vehicle owner.
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 — an unverified report by a vehicle owner.
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 — an unverified report by a vehicle owner.
failed or malfunction in PCV valve. Common issue in all 2016-2018 C300, E300, and GLE300. Multiple failed complaints on the part. Nationwide backorder on the part. No recall issued for this common problem. No help from dealerships, will just put you on a waitlist for a nationwide back order.
NHTSA complaint #11577435 — an unverified report by a vehicle owner.
Piston failure at 62000 miles. No prior engine lights until it happened suddenly while driving at the highway speed. The car suddenly lost power and started to violently shake and the engine light came on. Was able to pull over without incident and consult MB before bringing for diagnostics. There's a lot of MB with this specific engine piston failure affected according to internet search. The car has been inspected by the MB service dealer confirming piston failure. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA complaint #11553327 — an unverified report by a vehicle owner.