4.6

definitely annoying
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
23,550 miles

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problem #6

Sep 072022

GLC300

  • miles
Defective crackcase vent valve

- Cordova, TN, USA

problem #5

Feb 252022

GLC300

  • miles
The fuel line leaks directly under the driver seat. Filling the cabin with fuel vapors. Mercedes has an extended warranty for this problem but only on vehicles from 2004 to 2009.

- New Iberia , LA, USA

problem #4

Dec 012021

GLC300

  • miles
P052E code, Positive Crankcase Ventilation Regulator Valve failed. It is a known issue by Mercedes Benz on its 2016 and newer C-Class and GLC class vehicles. The valve is clearly a manufacturer defect that is burdensome to the consumer as the part is located near the engine mount and prohibitively expensive to fix due to per hour labor rates. Hundreds if not thousands of consumers have been affected through no fault of their own.

- Cary, NC, USA

problem #3

Apr 092021

GLC300

  • 46,000 miles
While driving, the malfunction indicator lamp (mil/check engine light) came on. After some digging this was caused by an obd II code of P052E, which indicates a blocked crankcase vent valve actuator. This appears to be a manufacturing defect in these vehicles.

- Wyoming, OH, USA

problem #2

Mar 232021

GLC300

  • 35,300 miles
Smells like gas coming through the vents into the cabin of the vehicle and causes headaches

- Portland, OR, USA

problem #1

Feb 172021

GLC300

  • 60,000 miles
1. crankcase ventilation valve performance failed check engine light is on while driving 2. smells gas from under the hood. Heard it's common problems

- Quakertown, PA, USA