2015 Mercedes-Benz C300: Reliability Data

Source: NHTSA — 505 complaints
505
Total Complaints
40,000mi
Median Mileage
Engine
Top Issue
11
Crash Reports

When Do Complaints Happen?

Distribution of NHTSA complaints by vehicle mileage at time of report.

15,500 25th Percentile
40,000 Median Mileage
61,952 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

Engine
127
Fuel/Propulsion System
65
Unknown Or Other
63
Electrical System
48
Body
33
Steering
22
Suspension
20
Power Train
20
Structure
19
Air Bags
11

Severity Assessment

11
Crashes
1
Fires
6
Injuries
0
Deaths

Sample Complaint Reports

"SOON AFTER PURCHASING MERCEDES, DISCOVERED THE FOLLOWING POTENTIALLY HAZARDOUS SAFETY ISSUES (ALL OF THESE FEATURES ARE STANDARD): 1) NEW "KEYLESS-GO LOCKING SYSTEM IS FACTORY PROGRAMMED TO UNLOCK ALL DOORS WHEN KEY IS IN OWNER'S POSSESSION & REAR DRIVER'S DOOR HANDLE IS TOUCHED, ALLOWING INTRUDER(..."
"SOON AFTER PURCHASING MERCEDES, DISCOVERED THE FOLLOWING POTENTIALLY HAZARDOUS SAFETY ISSUES (ALL OF THESE FEATURES ARE STANDARD): 1) NEW "KEYLESS-GO LOCKING SYSTEM IS FACTORY PROGRAMMED TO UNLOCK ALL DOORS WHEN KEY IS IN OWNER'S POSSESSION & REAR DRIVER'S DOOR HANDLE IS TOUCHED, ALLOWING INTRUDER(..."
"I STARTED THE ENGINE AND THE POWER STEERING FAILURE WARNING CAME ON. TRUE ENOUGH, IT WAS A STRUGGLE TO STEER MY CAR BACK HOME - I WAS JUST 3 MINUTES AWAY FROM HOME. THE CAR WAS TOWED THE NEXT MORNING TO AUTOHAUS ON EDENS IN NORTHBROOK, IL. I DID A GOOGLE SEARCH AND FOUND OUT THAT THERE HAS BEEN A R..."

Source: NHTSA ODI Complaints Database. Names and identifying details omitted.

When Were Complaints Filed?

Number of complaints by the year the issue occurred.

When Does Each Component Fail?

Median mileage at complaint for top components.

Engine 127 complaints
25th: 23,500 mi Median: 53,000 mi 75th: 70,000 mi
Fuel/Propulsion System 65 complaints
25th: 30,445 mi Median: 49,000 mi 75th: 58,750 mi
Unknown Or Other 63 complaints
25th: 12,675 mi Median: 29,750 mi 75th: 53,755 mi
Electrical System 48 complaints
25th: 8,100 mi Median: 20,020 mi 75th: 39,000 mi
Body 33 complaints
25th: 25,500 mi Median: 53,000 mi 75th: 64,200 mi

Where Are Complaints Coming From?

Top states by complaint count.

CA: 80 NY: 39 TX: 39 FL: 33 NJ: 32 MD: 31 CT: 24 PA: 19 GA: 19 VA: 18

Who Files Complaints?

0.4%
Original Owners
99.6%
Second+ Owners

Mercedes-Benz C300 — Other Years

See how this model compares across different model years.

YearComplaintsCrashes
201059026
201158420
20123316
201334015
20141197
201635514
201728117

Data source: View this vehicle on NHTSA.gov | NHTSA ODI Complaints Database. Public domain.

Methodology: Complaint counts and mileage distributions are computed directly from consumer-reported NHTSA complaints. This data represents reported issues, not failure rates — vehicles without complaints are not represented. Full methodology.

Data through: 2026-03-28