Fuel Rail and fuel injectors Leak contacted Mercedes cooperate to investigate why my car. VIN did not list according to campaign no 2022030003 to replace the fuel Ra and fuel injectors and a Ssfety & Emissios recall campaign that covers 139 Model year 2016-2030 that include my vehicle CLC-Class. My car is experiencing fuel injectors defects but my VIN number was not flagged
2016 Mercedes-Benz GLC 300 engine problems
42 complaints (31% of all complaints for this car). Typical mileage when it fails: 27,852. 1 crash reported.
- owner complaints
- 42
- of this car's complaints
- 31%
- typical mileage
- 27,852
- crashes
- 1
- recalls
- 0
Which part fails
- Exhaust system: emission control: crankcase (PCV)2
- Engine: other fuel types: turbo/supercharger1
- Engine: crank/camshaft position sensor1
At what mileage
Complaints by mileage at the time of the problem.
0k-25k
25k-50k
50k-75k
75k-100k
100k-125k
125k-150k
150k-175k
175k-200k
200k+
Mercedes-Benz GLC 300 engine problems in other years
Specific symptoms reported on the 2016 Mercedes-Benz GLC 300 engine
Phrases found in the owners' own descriptions, so one complaint can mention several symptoms.
Related recalls
No recalls on record for this model year.
What 2016 Mercedes-Benz GLC 300 owners say
Most recent owner complaints, unedited.
The contact owns a 2016 Mercedes-Benz GLC300. The contact stated while driving at an undisclosed speed, the check engine warning illuminated. The contact stated that the vehicle was taken to the Emissions Center, and the vehicle failed the Emissions test. The vehicle was taken to the dealer to be diagnosed. The dealer retrieved DTC: P052E (PCM has detected an inappropriate degree of pressure from the crankcase pressure sensor). The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was unknown.
The contact owns a 2016 Mercedes-Benz GLC300. The contact stated that while driving 45-50 MPH, the engine experienced rough idling and the vehicle was shaking violently. Several unknown warning lights were illuminated. The contact pulled over and turned off the vehicle. The vehicle was towed to an independent mechanic, who determined that cylinder #1 had a cracked piston and the engine needed to be replaced. The vehicle was then towed to another independent mechanic, who also determined that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure, but no assistance was provided. The failure mileage was approximately 90,000.
PVC valve indicator engine light keeps appearing after being replaced twice
Check engine light on-pvc failure. Code PO52E-71as determined by reliable repair shop. Recommended to have vehicle repaired by dealer. Shop advised part is vital to emissions system.
The contact owns a 2016 Mercedes-Benz GLC300. The contact stated that while operating the vehicle, the check engine warning light remained illuminated. The vehicle was taken to the local mechanic who diagnosed that the crank case ventilation sensor was faulty and needed to be replaced. The vehicle was not repaired. The local dealer was not contacted. The manufacturer was notified of the failure, but no assistance was provided. The failure mileage was 70,000.
When driving the car, the engine began to violently shake and fail. The engine ended up having a piston failure due to a small wrist pin and needed the entire engine block replaced. I was lucky that I was not on the freeway or in a more dangerous spot when the engine failed while driving.
Diagnose: code P05271 - Positive Crankcase Ventilation Regulator Valve Performance: The valve for crankcase ventilation has a malfunction. Mercedes Benz extended warranty to 15 yr / 150k miles for intake assemble which resolve this issue. Like to acquire a confirmation letter from Benz to cover the repair by the Benz dealer
The P052E error has popped up which requires the replacement of the PVC assembly. This is a known issue with these engines and causes the engine to run erratically. Mercedes knows that the issue is common. Please investigate and issue a recall if applicable.
I lost power on while driving at speed and almost got rear-ended before pulling over. I had to tow the car to a mechanic. After diagnosis it turned out the pistons are cracked and had to be replaced as well as the rod bearings. The pistons have a very abnormal burn pattern and rod bearing wear per my mechanic. This is a beautiful car and I take above average care of it. No car sold in the US should have pistons crack at such a short amount of miles. I believe Mercedes Benz should be held liable for their engineering error.
Questions about the 2016 Mercedes-Benz GLC 300 engine
Does the 2016 Mercedes-Benz GLC 300 have engine problems?
Owners have filed 42 complaints about the engine of the 2016 Mercedes-Benz GLC 300, 31% of all its complaints, more than any other problem.
At what mileage do 2016 Mercedes-Benz GLC 300 engine problems start?
The typical (median) mileage in owner complaints is 27,852 miles.
Was there a recall on the 2016 Mercedes-Benz GLC 300 engine?
There is no recall for this problem on this model year.
What year does the Mercedes-Benz GLC 300 have bad engine?
The Mercedes-Benz GLC 300 model years with the most engine complaints are 2016 (42 complaints), 2017 (37 complaints) and 2021 (30 complaints).
Other 2016 Mercedes-Benz GLC 300 problems
Brakes 27Fuel system 21Airbags 12Electrical 11Steering 7Transmission 6Seat belts 5Visibility 5Body 4Wheels 4Acceleration 2Tires 2Driver assistance 1Lights 1Suspension 1
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