Mercedes-Benz Metris fuel smell problems

Filed Jan 3, 2026 · Fuel system · WA

Fuel smell in the engine compartment and visible leaking fuel on the lower hoses per the federal safety agency Campaign Number 18V837000. I previously complained about this in April 2025 (ID 11669847). Dealer inspected in April 2025 and replaced the lower hose, but I still would smell fuel. After a lot of my own troubleshooting over the last six months, I have determined that when the car has sat un-used for over 24 hours, the rubber fuel lines shrink just enough that the next time the fuel system is primed (pre-start routine when you unlock the car, or start the car), a small amount of fuel leaks out at the connection. If the car sits for weeks and then you start it up, fuel will visibly leak out of the rubber connection (I have video). Once the rubber line swells up again due to the fuel in the line, it will slow the leak. So, if you use the car daily, you will be less likely to notice a leak. If you use the car infrequently, you will be more likely to have a leak.

Filed Sep 10, 2025 · Fuel system · PA

Recently took my vehicle in to get the brakes check and inspected. Technician at Mercedes Benz noticed a fuel leak in the upper fuel line. We both thought was very odd because the vehicle only has 35k miles on it and the line is visibly in great condition. I did a little research and found that there was a recall for this exact issue. But it seems that my vin wasn’t in the recall. I contacted Mercedes and told me to reach out to you guys. I’ve had multiple issues with Mercedes upon the delivery of my van. It was missing a Hermes module and had parts incorrectly installed. I ordered this van brand new and picked all the options. I have no doubt that my van some how missed this recall due to Mercedes absolute incompetence as I have had to deal with their incompetence to the full extent to the point where corporate actually awarded me a $1000 check to compensate for my bad experience And now they are trying to charge me over $1000 for this fix when it is clearly a recall.. please help. I had actually noticed the gasoline smell in the cockpit and when I exit the vehicle for over a year. When I asked the Mercedes technician about this they told me it was from installing the new fuel pump that had been recalled and that it would go away. (the federal safety agency Recall #22V134) due to insecure upper and lower fuel hose connections that could cause a fuel leak and a fire hazard. Best Tim

Filed Jun 27, 2025 · Fuel system · WA

There was a fuel smell emanating from the engine compartment during the vehicle pre-start routine (fuel pump priming). The dealership determined this to be a leak in the lower fuel hose to fuel line of the service connection per the federal safety agency Campaign Number 18V837000, however they refused to cover the cost of the repair because the recall work was previously completed in 2019. Corporate Mercedes Benz USA also refused to extend any goodwill toward this repair despite acknowledging it is the recall issue because the work was done once and is now considered out of warranty. Recall 18V‑837 only requires authorized dealer to inspect and replace as necessary, so I don't know if the previously completed recall work on my van actually resulted in replaced parts or not (I bought this van used after the recall work order was completed). This is a health and safety hazard and Mercedes should have a permanent fix, not give us a part that needs regular expensive maintenance.

Filed Dec 20, 2024 · Fuel system · CO

The fuel line is leaking again. I have had this replaced three times already. Once under warranty and twice out-of-pocket. Why wasn't the MY2016 included in the recall? The raw fuel smell permeates the cabin and is nauseating. This is a safety issue were something needs to be done for a permanent fix before someone dies in a fiery death.

Filed Sep 9, 2022 · Fuel system · CO

New heavy fuel odor in cab. I wonder how much fuel I am leaking. Where is the fuel that is being leaked out go? On a hot exaust system? Fuel line was replaced once by MB dealer. I think they used the same defective fuel line to replace the first one. One of the last times the van was in at the dealer they "didn't have time" to check the fuel line complaint. And there is no mention of my request in the service writers document that says I wanted it checked out.

Filed Mar 17, 2022 · Fuel system · OR

In 2019, the fuel line was recalled for my Mercedes Benz Metris. I had this fixed and it was ok for a while. In 2020, it started smelling like gas again. We moved out of state in 2020 and in 2021 I took it into my local dealership to have them look at it. They replaced the fuel line again. Since then, it has smelled like gas badly. It gives me headaches and I feel unsafe driving it. The dealership told me last time that this would not be covered under the initial recall from 2017 but they fixed it "goodwill." I do not understand how this could NOT be covered since the issue is still not rectified. I absolutely need to get this fixed correctly as the smell is very very bad and I worry that fuel may be leaking into compartments somewhere that could cause a fire. I am concerned for my safety every time I drive it for my business. Mercedes has been unhelpful, I contacted them in 2021 to tell the dealer to fix it, they never followed up with me, I have put two formal complaints in recently: 3/11 and today, 3/17, with no response from Mercedes.

Filed Jan 1, 2021 · Fuel system · WA

Fuel fumes inside cab when idling or very slow moving traffics

Filed Jun 13, 2019 · Fuel system · SC

I had the 2016 fuel line recall repaired in coconut fl by the mercedes dealer - however I can still smell gas fuel fumes when standing outside the stationary drivers door. It smells just like it did before the recall repair. Please tell me what to do to remedy this important safety issue. This has continued for over a month following the recall repair. It is now june 2019 it scares me to drive it. Please call and tell me what to do. The car is currently located in greeenville, sc - my summer home and is closest to the dealer I purchased it from in charlotte nc. My phone is [xxx] information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6).

Filed Dec 10, 2018 · Fuel system · PA

Strong gas smell inside vehicle and gas leaks out on ground. Risk of fire it seems to happen most when warming it up or after parking it.

Filed Nov 17, 2018 · Fuel system · 48,571 miles · NH

Raw fuel smell, leaking