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10.0

really awful
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
0 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2019 Mercedes-Benz GLC300 engine problems

engine problem

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2019 Mercedes-Benz GLC300 Owner Comments

problem #2

Jun 122022

GLC300

  • miles

A D V E R T I S E M E N T S

While driving on the interstate (65mph) in traffic, there was a sudden loss of power causing deceleration and the inability to maintain speed. A collision was barely avoided both from being rear-ended and from trying to safely move to the shoulder while other traffic passed. A certified mechanic later determined the piston in cylinder 2 broke, the spark plug broke and the piston rings pulled to the top. The mechanic also said, "Replacement of engine required." The vehicle has 52,839 miles (2,839 miles above the 50,000 warranty). There were no warning lamps or messages and no symptoms of the problem prior to the failure. A QUICK INTERNET SEARCH SHOWS THIS IS A COMMON OCCURENCE WITH THESE VEHICLES. WHAT DOES IT TAKE FOR A FORCED RECALL?

- Medford, OR, USA

problem #1

Nov 082021

GLC300

  • miles
I was going through drive thru waiting in line, when suddenly the car started to accelerate sharply, I put two feet on the brakes to stop the forward motion of vehicle - could not stop or place in park or neutral. their was ample room from the vehicle in front.. slightly removed feet from brake, suv lunged at vehicle in front kept on lunging then came to a halt...vehicle went back to normal operation.

- Roselle, IL, USA

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