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Fuel systemPart report

2019 Mercedes-Benz GLC 300 Fuel system Problems

Complaints
3about this part
Share
6%of 47 total for the year
Median mileage
—not reported
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 3 complaints about the fuel system of the 2019 Mercedes-Benz GLC 300, 6% of the 47 complaints for this model year. 1 a fire, according to the filers. 1 recall campaign on record is filed under a similar system.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“-I purchased a GLC300. Today I discovered I own a GLC 230 HAZMAT SUV with a Hydrogen tank and other dangerous items. German hazard lights that do not mirror my driver's manual or the car I purchased. -Hazard lights showing SRS systems malfunctioning - Hazard lights showing projected contact -Two unwanted unknown installations of Mercedesa branded navigation systems have been installed in my car without my permission. This is not over the air updates. I have the serial numbers. Mercedes-Benz has yet to respond to my requests for safety and information.”

NHTSA complaint #11469867, filed 2022-06

“The error code is P052E and it is a PCV Code Crankcase Ventilation Oil Separator. It's a time-consuming and expensive repair that seems to be regularly occurring on a lot Mercedes Benz that have this installed. And it happens often on cars with under 50K miles on them and when it's just been out of warranty this is a small inexpensive part that the customer funds through the cost of labor. Not that mechanics don't deserve their labor costs, but Mercedes ought to fix this is issue as it is borne by the consumer of a high end vehicle for a consistent, faulty part that they have engineered.”

NHTSA complaint #11589246, filed 2024-05

Related recalls

Related service bulletins

Fuel system: other model years

YearComplaintsShare of year
202516%
202359%
20222134%
20211218%
202046%
201936%
201878%
20171616%
20162116%

Other parts of the 2019 Mercedes-Benz GLC 300

Other or unknown
15 complaintsElectrical system
14 complaintsEngine
11 complaintsBody and structure
5 complaintsTransmission and drivetrain
5 complaintsVisibility (wipers, defrost, mirrors)
4 complaintsAir bags
2 complaintsVehicle speed control
2 complaintsBrakes
1 complaintsSeat belts
1 complaintsTires
1 complaintsWheels
1 complaints

← All problems reported for the 2019 Mercedes-Benz GLC 300

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology