Mercedes-Benz / C 300 / 2018
2018 Mercedes-Benz C 300 problems
Owners have filed 128 complaints about the 2018 Mercedes-Benz C 300 with NHTSA. Engine accounts for 26.6% of them — far more than any other system, ahead of steering at 9.4%. A further 15.6% were filed without a specific system named.
Complaints128
Crashes9
Fires0
Injuries2
Deaths0
What owners report breaking
Engine 26.6% · 34
Unknown or other 15.6% · 20
Steering 9.4% · 12
Structure 9.4% · 12
Electrical system 7.8% · 10
Fuel/propulsion system 7.0% · 9
Forward collision avoidance 3.9% · 5
Air bags 3.1% · 4
Severity
Of those complaints, 9 describe a crash and 2 report an injury.
Reading the numbers
Filings have fallen off, 41 in the last three years against 61 in the three before. The issues here may already have been addressed.
The median odometer reading at the time of complaint was 50,000 miles.
In owners' own words
The contact owns a 2018 Mercedes-Benz c300. While operating the vehicle, the contact noticed a burnt crayon odor inside the vehicle. The odor made it difficult to breathe inside the vehicle. The vehicle was taken to Mercedes-Benz of goldens bridge (321 ny-22, goldens bridge, ny 10526), but the cause of the failure was not determined. The manufacturer was notified of the failure. The failure mileage was 14,000. Engine · reported at 14,000 miles
CRACKED PISTON AT 68K MILES The vehicle is very well maintained, only 68k miles, has had every oil change, only takes premium gas. I was driving it when the check engine light went on and the vehicle began shaking violently. After towing the vehicle to the Mercedes Benz dealership, they informed me that the piston cracked and they could not articulate a reason why this would happen. Engine
Check engine light comes on, Error Code P052E, after a lot of research, this is a known defective part by Benz. Huge safety issue not addressed by them. Very costly to fix for a customer. There is a new and improved replacement part from Benz indicating they are aware of the faulty old parts that are currently in those cars but yet they have failed to do a recall. Engine
Verbatim from NHTSA filings. Complaints are unverified owner reports.
Safety recalls
Checking NHTSA for open recalls…