2017 Mercedes-Benz C300: Reliability Data

281
Total Complaints
28,500mi
Median Mileage
ENGINE
Top Issue
17
Crash Reports

When Do Complaints Happen?

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

8,000 25th Percentile
28,500 Median Mileage
48,000 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

ENGINE
75
UNKNOWN OR OTHER
33
ELECTRICAL SYSTEM
29
FUEL/PROPULSION SYSTEM
29
STRUCTURE:BODY
18
SEAT BELTS
18
AIR BAGS
15
STEERING
13
POWER TRAIN
12
VISIBILITY:SUN/MOON ROOF ASSEMBLY
7

Severity Assessment

17
Crashes
2
Fires
22
Injuries
0
Deaths

Sample Complaint Reports

"SUNROOF EXPLOSION TOOK PLACE IN TRANSIT TO DELIVERY TO MY HOME IN CENTERVILLE, OHIO FROM HOUSTON, TEXAS. IT WAS STATIONARY INSIDE OF ENCLOSED TRANSIT VEHICLE."
"VEHICLE HORN WILL NOT FUNCTION WHEN IGNITION SWITCH IS IN OFF POSITION."
"TAKATA RECALL I HAD MY 2017 MERCEDES BENZ C300 FIR ONLY A FEW MONTHS AND I HAVE EXPERIENCE 4 ENCOUNTERS AS TO WHERE MY VEHICLE WOULDNT START BACK UP WHILE SITTING INSIDE OF MY VEHICLE FOR AT LEAST 2 TO 3 MINS ITS LIKE BEING LOCKED INSIDE OF MY OWN CAR EVERYTHING COMPLETELY SHUTS DOWN THE ENGINE ..."

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 75 complaints
25th: 29,237 mi Median: 35,000 mi 75th: 48,000 mi
UNKNOWN OR OTHER 33 complaints
25th: 73 mi Median: 4,250 mi 75th: 41,500 mi
ELECTRICAL SYSTEM 29 complaints
25th: 17,000 mi Median: 40,385 mi 75th: 49,250 mi
FUEL/PROPULSION SYSTEM 29 complaints
Median: 47,000 mi
STRUCTURE:BODY 18 complaints
25th: 8,750 mi Median: 13,000 mi 75th: 23,500 mi

Where Are Complaints Coming From?

Top states by complaint count.

CA: 56 FL: 37 TX: 27 NY: 17 GA: 14 IL: 12 OH: 11 CT: 10 MA: 10 NJ: 9

Who Files Complaints?

0.7%
Original Owners
99.3%
Second+ Owners

Mercedes-Benz C300 — Other Years

See how this model compares across different model years.

YearComplaintsCrashes
201059026
201158420
20123316
201334015
20141197
201550511
201635514

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