36 of the 305 complaints filed about the Mercedes Benz GLC300 are about the fuel system — 12% of everything owners reported. The worst model year for it is 2016.
36
Complaints
12%
Share of all complaints
0
Crashes
0
Fires
FUEL/PROPULSION SYSTEM
I smell gas in my car. There is a recall for the fuel parts on the 2019. I have a 2017 with the same issue.
NHTSA complaint #11715888 — an unverified report by a vehicle owner.
FUEL SYSTEM, GASOLINE
The contact owns a 2016 Mercedes-Benz GLC300. The contact stated that while receiving routine maintenance, the mechanic noticed a fuel odor coming from the vehicle. The mechanic determined that the fuel injectors had failed and that the fuel rail needed to be replaced. The mechanic provided the contact with information related to NHTSA Campaign Number: 21V961000 (Fuel System, Gasoline); for the fuel rails and fuel injectors. The mechanic referred the contact to the dealer for assistance. The dealer was informed of the failure and confirmed that the VIN was not included in the recall. The vehicle was not repaired. The manufacturer was informed of the failure and confirmed that the VIN was not included in the recall. The manufacturer referred the contact to the NHTSA Hotline to report the failure. The failure mileage was 60,814.
NHTSA complaint #11694113 — an unverified report by a vehicle owner.
FUEL/PROPULSION SYSTEM
Mercedes-Benz USA (MBUSA) To whom It May Concern, Complaint through your dealer, regional MB and state AG. Going through MBUSA is a waste of time. You would be better off going to Sears and buying a shiny new hammer and banging your head every hour on the hour. A little over a year ago, I Purchase a previously owned 2016 GLC300 from a local DGDG dealership in San Jose CA. for the past few month, I started experiencing a heavy fuel odor generated from the fuel rail and fuel injectors. I initiated a leak detection to verify the above-mentioned defect. I became aware the Mercedes Benz has a major issue with the fuel rail and fuel injectors that caused a safety & emission recall campaign 2022030003 that is launched to replace the fuel rail and fuel injectors on 139 Model Year 2016-2020 that included my car GLC-class vehicle. To my surprise my car VIN number was not listed and flagged in this campaign. According to the campaign issue, a leak may develop between the fuel line and the fuel injectors due to trapped debris from the production process, which could affect the safety and emissions of the vehicle. according to the documents of the campaign, trapped debris might damage the seal between the fuel rail and fuel injectors, which over the life of the vehicle, might result in a fuel leak into the engine compartment. I informed Mercedes Bens that my vehicle fuel rail line and fuel injectors have shown to have a safety manufacture failure. Leaking fuel from this area might contact hot parts of the engine and therefore the risk of fire cannot be ruled out. It seems that the fuel pressure deviation has exceeded the thresholds because the fuel odor is perceptible to me. I had an appointment with Mercedes Benz of Stevens Creek, and they established that my vehicle VIN number was not affected by the recall even though the defects exist on my vehicle. I reached out to Mercedes Benz USA, LLC and filed case # [XXX] but they elected not to take responsibility to repair my ca INFORMATION REDACTED PURSUANT TO THE FREEDOM OF I
NHTSA complaint #11688647 — an unverified report by a vehicle owner.
FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY
The contact owns a 2017 Mercedes-Benz GLC300. The contact stated that while operating the vehicle, the fuel gauge provided incorrect information and indicated that there was no fuel in the fuel tank. The contact stated that the failure was intermittent and sometimes occurred immediately after refueling. The vehicle was taken to the local dealer who diagnosed the vehicle and determined that the fuel tank needed to be replaced. The vehicle was not yet repaired. The manufacturer was notified of the failure, but no assistance was offered. The failure mileage was 55,000. The VIN was not available.
NHTSA complaint #11637735 — an unverified report by a vehicle owner.
FUEL/PROPULSION SYSTEM
Strong gasoline smell coming from the engine bay every morning at start up. I removed protective plastic lining from the under carriage to identify the issue. I identified a lot of gasoline dripping from the top portion of the engine compartment where the High Pressure Fuel Pump is located. There was no warning or check engine lights that alerted of this issue of a gasoline leak. This is very dangerous as it could cause the vehicle to catch fire.
NHTSA complaint #11631359 — an unverified report by a vehicle owner.
FUEL SYSTEM, GASOLINE
The contact owns a 2017 Mercedes-Benz GLC300. The contact stated that she detected an abnormally strong fuel odor after parking the vehicle, and while starting the vehicle. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 70,000.
NHTSA complaint #11590367 — an unverified report by a vehicle owner.
FUEL/PROPULSION SYSTEM
Smell of gas
NHTSA complaint #11565695 — an unverified report by a vehicle owner.
FUEL/PROPULSION SYSTEM
After noticing my engine light come on, I had my vehicle checked out, the dealer informed (after spending $250.00) that the problem is the crankcase ventilation and it's a common problem. It seems the oh so familiar crankcase ventilation system is not working. This is a common problem with the GLC300 and Mercedes Benz needs to correct it. The engine is not being ventilated properly and the overwhelming smell of gasoline engulfs the interior of the vehicle. This is putting mine and the life of my family at risk, due to a faulty manufacturer issue. Mecedes Benz needs to obviously correct the faulty parts they use as soon as possible, before someone loses their life.
NHTSA complaint #11563324 — an unverified report by a vehicle owner.
FUEL/PROPULSION SYSTEM
I have noticed extreme gas odors in the cabin of my car, the gas odor is so horrific that even when I exit the car either outside or in my garage the odor remains. My car is housed in my garage and I'm very concerned regarding these fumes which fills up my garage because my home is attached. I researched on a web site that there has been complaints and consequently a recall ( 21V961000) ON 12-12-2021 FOR GLC 300,2016, But my vehicle did not receive a recall notice. I am concerned regarding possible fire or illness related to fumes being inhaled.
NHTSA complaint #11551478 — an unverified report by a vehicle owner.
FUEL/PROPULSION SYSTEM
The Positive Crankcase Ventillation harness fails and check engine light goes on. Through my research I found that many C class and GLC class with same engine have had similar issues and there was a recall and covered. My particular VIN was not included in the recall but had this check engine warning sign before 50K miles warranty expires. The light always went away but now it has come back on for the third time and not going away. The cost to replace this simple module is mostly labor at 8 hours is around $2,000. I believe this is an emission component and need to be covered under state and federal emission standards warranty. The initial recall with this issue should be involved with same engine and cover all cars and SUV's with same engine. I do believe this is an Emission control device that is regulated by state and federal standards and should be covered under warranty.
NHTSA complaint #11539238 — an unverified report by a vehicle owner.
FUEL/PROPULSION SYSTEM
CRANKCASE VENT VALVE PCV ENGINE LIGHT ON AIR POLLUTION DANGER STALLING DANGER
NHTSA complaint #11520804 — an unverified report by a vehicle owner.
FUEL/PROPULSION SYSTEM
Odometer reading more miles then driven (may have been tampered with altered) There is an electrical issue The computer required to be reprogrammed has not been done yet While driving the vehicle completely stop accelerating in the middle of traffic on the interstate placed my life in danger especially because traffic was moving rapidly the vehicle was jerking horribly also several codes came on when the service light came on also needed a pcp vale hose system they never repaired it i asked to have it repaired they agreed and then stated the vehicle had to many issues was sending to auction but yet reselling the vehicle still have not repaired completely this could be dangerous
NHTSA complaint #11520184 — an unverified report by a vehicle owner.
FUEL/PROPULSION SYSTEM
What component or system failed or malfunctioned, and is it available for inspection upon request? Crank case vent valve malfunctioned 2 years ago and was replaced. Now it is failing again. Reports online from other owners show this part failing about every 2 years / 20k miles. This is not a wear item. Yes it is in my car How was your safety or the safety of others put at risk? It is part of the fuel system so it can potentially damage the car Has the problem been reproduced or confirmed by a dealer or independent service center? Yes Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? It has been inspected by the dealer Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? There is a check engine light that appears right at failure, not before.
NHTSA complaint #11512870 — an unverified report by a vehicle owner.
FUEL/PROPULSION SYSTEM
Raw fuel smell when vehicle is at idle. Breaks are very loud at low temperatures. Very squeaky like metal on metal yet the brakes are like new from Mercedes dealership.
NHTSA complaint #11504582 — an unverified report by a vehicle owner.
FUEL SYSTEM, GASOLINE
The contact owns a 2016 Mercedes-Benz GLC300. The contact stated while driving at various speeds, there was an abnormal fuel odor inside the vehicle. The dealer was notified of the failure and acknowledged that the failure was a known issue with similar-model vehicles. The contact was informed that the fuel line needed to be replaced; however, the dealer could not schedule an immediate appointment. The manufacturer was notified of the failure. The vehicle was not repaired. The failure mileage was approximately 15,000. The contact stated that the fuel line was replaced under the vehicle's extended warranty.
NHTSA complaint #11502120 — an unverified report by a vehicle owner.
FUEL/PROPULSION SYSTEM
Check Engine light P052E came on while driving. No collision, normal conditions other than first very cold night of the season. Looked it up and seems to be a common issue with this model.
NHTSA complaint #11499425 — an unverified report by a vehicle owner.
FUEL/PROPULSION SYSTEM
Crankcase ventilation valve issues
NHTSA complaint #11492457 — an unverified report by a vehicle owner.
FUEL/PROPULSION SYSTEM
Defective crackcase vent valve
NHTSA complaint #11488464 — an unverified report by a vehicle owner.
FUEL/PROPULSION SYSTEM
The vehicle needs a new PCV Valve / hose, as well as a new turbo charger
NHTSA complaint #11484863 — an unverified report by a vehicle owner.
FUEL/PROPULSION SYSTEM
While driving on the NYS Thruway last week, when I accelerated to pass another car, my engine bucked and kicked followed by the "check engine" light coming on.In very heavy traffic, I was able to pull to the shoulder. I called my service garage and they suggested I not drive the car for safety reasons. When the tow truck arrived, I briefly started the car with the same bucking and kicking from the engine. The car was taken to my regular garage where the "check engine" codes showed issues with the fuel injector and fuel injection system. I was told there is an existing RECALL CAMPAIGN # 2022030003 for the same year, make and model as mine but, my VIN is not part of that RECALL. I would like your help as I do not believe Mercedes-Benz is being fair or equitable in this RECALL. ThankYou
NHTSA complaint #11480844 — an unverified report by a vehicle owner.