Other Fuel System Problems of Mercedes Benz E300

Strong smell of fuel or exhaust fumes in the cabin, while vehicle is idling, parked or stoped at the light.

See all problems of the 2017 Mercedes Benz E300 🔎.

Smell of gas coming from the the fuel line, and the radio changes stations on its own.

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.

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 .

Strong gas fumes smell from vehicle when parked. Issue starts around 50k miles. No lights on dash or anything. Multiple people in forums online experience the same issue around the same mileage. Some say it's a leak from fuel lines to the fuel pump.

Mercedes benz use low quality pcv regulator valve , it is a common failure problem, warranty will not be covered, benz sells part replacement for around 350 usd and it require about 2000 in labor to be fixed on average.

See all problems of the 2018 Mercedes Benz E300 🔎.

There was a smell of gasoline in and outside the car when the car was idling. Also, a smell of gasoline in the garage around the parked car. Also a smell of gasoline after starting the car, that went away after driving. I called the service department. They gave me an appointment one week later. I have no complaints about the service dept. When the car was repaired several hours later, the report stated "found seep at fuel hose to pump", and then, "replaced upper fuel hose to high pressure fuel pump". They told me it was no charge because they knew about this problem happening in their vehicles and had extended the warranty for it. I was/am very concerned because(1. ) if I had been in an accident, could have more easily been a fire? (2. ) mercedes knew about this and to my knowledge have not let customers know, (3) I kept up with all maintenance/service visits and I was never told to be aware of this possibility, (4) when reported by me, there was no procedure in place to prioritize scheduling this repair. I may be wrong in my analysis and do not want to cause anyone any trouble. I just think if one car fire can be avoided that is important. If my thinking is incorrect, I apologize sincerely for my reaction to this situation.

There are three main issues: as the weather got cold here in NJ, whenever the car is started in the morning, there is a strong fuel smell inside the cabin. Also there is a lot of fumes that smell gasoline. I think it is safety issue. The auto braking does not seem to operate right. I do not see any error message, but it had never tried to avoid a collision when I have tried other cars that would have normally applied the brakes in those situations. The garage door opening function does not work as soon as the ignition is turned off. This is an electrical issue in my view.

There is a smell of gas inside the cabin coming from the vents.

Vehicle emits a strong odor of gasoline when cold. It was mainly noticeable on the outside of the car at first, but now when I turn on the air inside the car (not on ac mode), I started smelling the odor of gas in the cabin. I have taken the car for possible repairs, but am told on two separate occasions by an independent service center that the odor can not be duplicated. There are recalls for the same issue on different models, but as of yet, not on this particular year model. I have notice that when the car sit overnight and when I open any door, trunk or push the lock button on the car's remote, a few seconds later, it starts emitting the smell of gasoline. The car is always parked overnight inside my garage, hence the smell is very strong.

There was a fuel smell in the cabin of the car. Gar is parked in an enclosed garage. There was a major risk of fire to the car and the house. There were no warning signs! problem has been confirmed and repaired at owners expense.

It appears according to the technician that the entire fuel system has shorted out at once while I was driving down the road and my car died at once while nearly causing a wreck while losing all power steering and control.

Strong persistent odor of gasoline in the cabin on cold start.

Fuel leak make gas smell goes inside cabin.

Low pressure fuel line needed replacing. This was due to a fuel smell in the cabin when cold. Mercedes indicated fuel lines are considered wear and tear and even though it was leaking , was not covered under pre owned warranty or recall. The fuel line appears cracked due to misinstallation vs rubber cracking due to age as one side was pristine and the other had a crack in it. This is noticeable at idle , when the car is cold and the heat is blowing.

Very strong gas smell coming from car especially in cool weather temperatures. The smell disappears when the car runs for a while but it’s terrible on cold starts. High or low pressure fuel line is the cause of it. Smell would disappear before reaching shops for diagnosis. Many other owners of same exact model experiences this as well.

I drove in and parked behind a child care center. I was stopped and suddenly the car lurched forward crashing through a wood fence and was only stopped by some playground equipment. Breaking did not stop it.

See all problems of the 2019 Mercedes Benz E300 🔎.

I own a 2017 Mercedes Benz e-class. I'm starting to smell gasoline in the cabin and also outside of my vehicle. I tried entering my VIN number to see if any recalls. There is something listed for the smell of gas. Can someone help me regarding this matter.