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10.0

really awful
Typical Repair Cost:
$6,850
Average Mileage:
50,000 miles
Total Complaints:
1 complaints

Most Common Solutions:

  1. replaced 4 pistons (1 reports)
2015 Mercedes-Benz C300 engine problems

engine problem

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2015 Mercedes-Benz C300 Owner Comments

problem #1

Mar 082021

C300 AMG Sport 2.0L I4 Turbo

  • Automatic transmission
  • 50,000 miles

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

The check engine light came on and the engine was idling rough. I assumed it needed new spark plugs because it calls for it at 50k miles. After replacing the plugs, the problem was still there. I took it to a private shop which diagnosed it as a fuel injector. Again, this did not fix the problem. Finally, I took the car to the Mercedes dealer and they informed me of low compression on cylinder #3. Mercedes is an embarrassment if they force their customers to pay for a new engine after 50k miles. My wife's Lexus is running strong at 178k miles.

Update from Aug 25, 2021: Mercedes diagnosed the engine with a cracked piston. They charged almost $7000 for repairs.

- Ramazan M., Broomall, PA, US

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