Engine And Engine Cooling Problems of Mercedes Benz E300

See attached document for complaint.

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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.

P052e code. My car is only have 18455 mileage.

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.

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.

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.

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 .

Fault code p052e71, the crankcase ventilation valve is faulty. The actuator is blocked. Second time having this issue.

Check engine light came on and then complete engine failure. Cracked #1 piston, and engine destroyed.

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.

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.

Engine stalled in the middle of the high way, possible problem with timing chain.

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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. Https://mbworld. Org/forums/c-class-w205/731642-w205-c300-stay-away-piston-cracked-65-k-miles-7. Html.

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.

Engine failure due to piston crack. Seems like it is a common issue for mercedes models with this specific engine. A lot of people have their engine needing to be replaced at very low miles such as 10k miles 15k miles. Vehicle was always been serviced on time. Now I need a new engine. Manufacturer needs to take responsibility of this engine defect.

The contact owns a 2017 mercedes-benz E300. The contact stated while coming into a stop, the vehicle shuddered. The check engine warning light was illuminated. The contact was able to continue driving at a lower speed. The contact stated while accelerating from the complete stop, the vehicle hesitated to respond. The contact stated that the failure had been recurring while driving and the vehicle failed to exceed 60 mph. The vehicle was taken an independent mechanic, where the spark plugs, ignition coils and the fuel injectors were replaced; however, the failure persisted. The mechanic diagnosed that there was low compression on engine cylinder number 1, and that the engine needed to be replaced. The vehicle was not repaired. The dealer and the manufacturer were not notified of the failure. The vehicle was not diagnosed nor repaired. The failure mileage was approximately 82,000.

Car will loose power unexpectedly and start shaking badly. Check engine light comes on flashing. Vehicle gets towed to shop to find loss of compresión on cylinder one. Mercedes benz forums full of this type of issue. Shop says repair is to rebuild or replace engine. Vehicle available for inspection.

According to the mersedes dealer it is engine harness it is possible manufacture defect. Car has only 38900 miles on it.

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Having a mercedes was my dream since I was a kid and I’m completely heartbroken to have to file this complaint. I’ve been working literally my whole life to finally be able to afford my 2017 E300. I purchased it from autobahn motors in belmont, California in August 2020. My car has ~48,000 miles on it and I still own approximately $14,000 on the car as of today (5/20/2023). When I was driving on the highway my car engine light came on, started to violently shake, and I thought it was going to stall out. I immediately took it in to my mechanic and he told me that piston #1 is broken and the spark plugs are melted! premature engine failure. I can no longer use my car until I get my engine replace! I’ve gotten one quote and it is approximately $15,000! I don’t even have 50,000 miles on my car. I saw a large volume of complaints online for the m274 engine including a class action lawsuit that have exactly the same issue as what my mechanic diagnostics is showing (broken piston #1 leading to premature engine failure). This is a huge safety concern and needs to be investigated immediately and corrected by Mercedes Benz before someone gets hurt or dies from this failure. For the price I’ve paid, still owe, as well as what the repair would be is completely unacceptable. I need my car for work and I’m also a parent so this is creating a huge inconvenience and financial hardship. Mercedes must be aware of this problem and held accountable for there negligence on correcting this issue.

Variable timing valve malfunction , causing metal shaving to get in to the engine causing a engine failure.

Yellow check engine light came on and a few days later the car stalled on the road potentially causing an accident. Took it to a shop and it has a p052e (crankcase valve issue), then took it to mercedes and theyve confirmed that oil has been leaking and it needs a new cvp ($3000) and oil has leaked into the engine harness ($4000) but a few other indie shops have mentioned that id probably also have to replace the thermostat because thats usually damaged as well. You can google this issue and see that its insanely common, dangerous, and a huge financial burden on mercedes owners. There should be an immediate recall. See the inspection here: https://app. Mykaarma. Com/service-cart/mpi/8rlvgzhzcnsvpezri1zeetxkaplumxruuivaokycfrg/detail.

Have engine light on, and error code p052, which is a pvc malfunction. It is a common issue happens to a lot of mb owners. Mercedes benz refuses to have the replacement covered by extended warranty.

My check engine light has come on and the code is p052e71 stating crankcase ventilation valve has a malfunction.

Once I turn on the ac and switch to heat I smell a strong gas odor everytime.

Code p052e crankcase ventilation valve replacement, emissions system manufacture does not cover and commonly fails around 25-55k miles.

The contact owns a 2017 mercedes-benz E300. The contact stated that while driving at approximately 65 mph, the vehicle was stalling and that after exiting the highway, the vehicle was no longer operable. The check engine warning light was illuminated. The vehicle was then towed to a local dealer, where the contact was made aware of a failed piston and that for further diagnosis they had to open the engine. The vehicle was not repaired and was towed back to the contact's residence. The manufacturer was made aware of the failure. The approximate failure mileage was 89,000.

Positive crankcase ventilation regulator valve performance.

Vehicle running really rough. Check engine light came on and stated cylinder #1 misfire. Technician took apart the engine and found cylinder #1 piston to have a crack in it.

Piston 1 failed at 40,00 miles.

Recurrent crankshaft ventilation valve failures. Replaced 14 months ago and has failed again. This is a common and known issue with vehicles in e class from 2017 through 2019 and mercedes has not issued a recall. Perhaps because it costs $3500 to replace it if out of warranty. Entire system replaced Feb 17, 2022 and has failed again (April 6th, 2023).

Tl-the contact owns a 2018 mercedes-benz E300. The contact stated that he has experienced electrical and engine issues with his vehicle. The contact stated that the vehicle has been to mercedes-benz of seattle (2025 airport way s, seattle, wa 98134) on numerous occasions and they were unable to duplicate or diagnose the failures. The contact stated that while he was driving at 80 mph the vehicle was vibrating uncontrollably. The vehicle was taken to the dealer and upon inspection the front tires blow out. The contact feels that the vehicle has a carbon monoxide leak as he has been diagnosed by his doctor with carbon monoxide poisoning. The manufacturer has been notified numerous times but have offered no assistance. The approximate failure mileage was 25,000. Ck.

Engine cuts off while driving.