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#BS-2017-MERC30-4E4F

2017 Mercedes Benz C300

Based on reports from 280 owners and 15 recalls for this exact model.

Complaints
280
Crashes
17
Fires
2
Recalls
15
TSBs
139
🛑

Preliminary Verdict

Red Flag

Based on 280 complaints, 17 crashes, 2 fires, and 15 recalls. Complaint rate is 3.5x the class average.

See full verdict with buy/skip conditions

Top reported problems

1

early engine failure

1 complaints • Severity 10/10

$X,XXX
2

exploding retractable glass rooftop

1 complaints • Severity 10/10

$X,XXX
3

windshields keep cracking

1 complaints • Severity 10/10

$X,XXX

Preview: What's in your full report

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Mechanic Inspection Checklist

!Check the EngineHIGH

75 owners reported engine issues — failures commonly reported around 29K miles.

!Inspect the Fuel SystemMED
Look for symptoms of wear and premature failure
+ 6 more items in full checklistUnlock

Failure Timeline by Mileage

40
0–30K
27
30–60K
6
60–90K
2
90–120K
1
120–150K
150K+

Peak failure range: 0–30K miles (40 reports) • Median: 29K miles

Full report: which components fail at each mileageUnlock

30,000-Mile Cost Projection

Best Case

$X,XXX

Most Likely

$X,XXX

Worst Case

$X,XXX

Top cost driver: Engine (75 reports).

Includes fuel costs, common repairs, and recall riskUnlock

Also in your report

Owner Intelligence

AI-synthesized themes from real complaints

Buyer Lot Checklist

Questions, test drive checks, walk-away triggers

Negotiation Talking Points

Data-backed dollar deductions

Buy / Skip Verdict

Final recommendation with conditions

10 sections total in the full reportUnlock all

Where the complaints fall

Engine75 (27%)
Other33 (12%)
Fuel System31 (11%)
Electrical29 (10%)
Seat Belts18 (6%)
Structure:body18 (6%)
Airbags15 (5%)
Steering13 (5%)

2017 Mercedes Benz C300: Known Issues & Problem Areas

Engine Issues

Engine complaints account for 27% of all reports filed for the 2017 Mercedes Benz C300, with 75 owners filing complaints with NHTSA. The median mileage at time of complaint is 29,000 miles, suggesting issues tend to surface around the 29K-mile mark.

Fuel System Issues

Fuel System complaints account for 11% of all reports filed for the 2017 Mercedes Benz C300, with 31 owners filing complaints with NHTSA. Owners should pay attention to fuel system-related symptoms during test drives and pre-purchase inspections.

Electrical Issues

Electrical complaints account for 10% of all reports filed for the 2017 Mercedes Benz C300, with 29 owners filing complaints with NHTSA. Owners should pay attention to electrical-related symptoms during test drives and pre-purchase inspections.

Seat Belts Issues

Seat Belts complaints account for 6% of all reports filed for the 2017 Mercedes Benz C300, with 18 owners filing complaints with NHTSA. Owners should pay attention to seat belts-related symptoms during test drives and pre-purchase inspections.

Data sourced from NHTSA owner complaints and community reports. The full report analyzes severity, repair costs, and failure patterns for each category.

Complaint trend by year

1
16
28
17
17
18
15
19
12
20
29
21
43
22
56
23
47
24
32
25

Complaints filed with NHTSA by year for the 2017 Mercedes Benz C300. Recent trend: decreasing.

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Repair costs • Negotiation scripts • Mechanic checklist • Buy/skip verdict

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Recall History (15 recalls)

17V114000Aug 2017

ELECTRICAL SYSTEM:STARTER ASSEMBLY

Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2015-2017 C300 4Matic, C300, CLA250, CLA250 4Matic and CLA45 AMG vehicles, 2017 C300 4Matic Cabrio, C300 4Matic Coupe, C300 Cabrio, C300 Coupe, E300, E300 4Matic, E400 4Matic Wagon, E43 AMG 4Matic, GLA250, GLA250 4Matic and GLC300 4Matic Coupe vehicles and 2016 C350e and GLC300 vehicles and 2016-2017 C450 4Matic AMG Sport and GLC300 4Matic vehicles. In the event that the engine or transmission cannot turn over, the starting current limiter may overheat from the repeated attempts of the starter motor attempting to start the vehicle.

17V243000Jun 2017

STEERING:ELECTRIC POWER ASSIST SYSTEM

Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2016-2017 C300 vehicles. The electrical contacts for the power steering electric motor may not have been properly welded, possibly resulting in a loss of electrical contact.

17V251000Oct 2017

SEAT BELTS:PRETENSIONER

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2017 C300, C300 4Matic, C300 Coupe, C300 Coupe 4Matic, C43 AMG, C43 AMG Coupe, C43 AMG Cabrio, C63 AMG, C63 AMG Coupe, C63S AMG, C63S AMG Coupe, C63S Cabrio, GLC300, GLC300 4Matic, GLC43 AMG, S550, S550 4Matic, S550e, S600, S63 AMG 4Matic, S65, Mercedes-Maybach S550 4Matic, and Mercedes-Maybach S600 vehicles. The affected vehicles have front seat seatbelt pretensioners that may not function properly in the event of a crash. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 208, "Occupant Crash Protection," and 209, "Seat Belt Assemblies."

17V627000Dec 2017

AIR BAGS:FRONTAL

Mercedes-Benz USA, LLC. (MBUSA) is recalling these vehicles: 2014-2018 CLA250, CLA250 4Matic, CLA45 AMG 4Matic, 2015-2018 GLA250, GLA250 4Matic, GLA45 AMG 4Matic, C300 4Matic, C63S AMG, 2012-2014 C250, C350, C300 4Matic, E550 4Matic, 2013-2014 C63 AMG, 2012-2015 C250 Coupe, C350 Coupe, C63 AMG Coupe, 2013-2015 C350 4Matic Coupe, GLK250 4Matic BlueTec, GLK350, GLK350 4Matic, 2016-2017 C350e, C43 AMG, 2015 C400 4Matic, 2016-2018 C63 AMG, GLC300, GLC300 4Matic, 2017-2018 C300 Coupe, C300 4Matic Coupe, C43 AMG, C63 AMG Coupe, C63S AMG Coupe, C300 Cabriolet, C300 4Matic Cabriolet, C43 AMG Cabriolet, C63 AMG Cabriolet, C63S AMG Cabriolet, GLC300 4Matic Coupe, GLC43 AMG, GLC43 AMG Coupe, 2014 E350 Coupe, E350 4Matic Coupe, E350 Cabriolet, E400 Hybrid, 2015-2017 E400 Coupe, E400 4Matic Coupe, E400 Cabriolet, 2014-2017 E550 Coupe, E550 Cabriolet, B250e, 2014-2016 E250 BlueTec, E63 AMG 4Matic Wagon, 2012-2013 E350 BlueTec, 2012-2016 E350, E350 4Matic, 2015-2016 E400, E400 4Matic, 2012 E63 AMG, 2014-2015 E250 4Matic BlueTec, 2013-2016 E350 Wagon, 2017 GLC300d 4Matic, and 2018 GLC350e 4Matic. The driver's air bag may unexpectedly deploy due to insufficient grounding of the steering components if an electrostatic discharge occurs and the air bag clockspring is broken.

18V207000Jun 2018

SEATS

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2017-2018 C43 AMG 4Matic Coupe, C300 Coupe, C300 4Matic Coupe, C300 4Matic Cabriolet, C300 Cabriolet, C43 AMG 4Matic Cabriolet and C63S AMG Cabriolet, 2017 C63 AMG Cabriolet, C63S AMG Coupe and C63 AMG Coupe, 2018 E400 Coupe and E400 4Matic Coupe vehicles. The seatbacks of the front seats may not properly lock on the right side of the seat.

+ 10 more recalls in the full report

Recall severity analysis & seller scripts

The full report rates each recall's severity and gives you scripts for asking the seller about recall completion.

Unlock

2017 Mercedes Benz C300 vs. Class Average (Compact Cars)

This vehicle

280

Class avg

79

3.5x the class average — significantly more complaints than typical compact cars vehicles.

Complaint counts correlate with sales volume — popular vehicles naturally generate more reports. The full report normalizes for this.

About this data

NHTSA Complaints

Federal database of owner-filed safety complaints. 280 records for this vehicle.

NHTSA Recalls

Manufacturer-issued safety recalls. 15 recalls found for this vehicle.

Repair Cost Data

Real-world repair costs from owner reports and independent databases.

Other Mercedes Benz C300 Model Years

2020201920182017201620152014201320122011201020092008
View all Mercedes Benz C300 years →

2017 Mercedes Benz C300: Frequently Asked Questions

What is the most common problem with the 2017 Mercedes Benz C300?
The most commonly reported issue with the 2017 Mercedes Benz C300 is related to the engine, with 75 complaints filed with NHTSA.
Is the 2017 Mercedes Benz C300 reliable?
The 2017 Mercedes Benz C300 has 280 complaints, 17 crash reports, and 2 fire reports filed with NHTSA. This is 3.5x the class average — higher than typical for its segment.
How much does it cost to fix 2017 Mercedes Benz C300 problems?
Repair costs vary by issue. The full BumperScan report includes detailed repair cost estimates (low/median/high) for every major issue, plus a 30,000-mile total cost of ownership projection.
Does the 2017 Mercedes Benz C300 have any recalls?
Yes, the 2017 Mercedes Benz C300 has 15 recalls on record. The full report includes recall severity analysis and scripts for asking the seller about recall completion.
What mileage do Mercedes Benz C300 problems start?
Based on 76 complaints with mileage data, the median mileage at time of complaint is 29,000 miles. The highest concentration of reported issues occurs in the 0–30K mile range. The full report breaks down exactly which components fail at each mileage bracket.
What’s in the full report?
10 sections of AI analysis: severity-ranked issues, component scores (0-100), 30K-mile cost projection, failure timeline by mileage, recall details with seller scripts, owner sentiment analysis, mechanic checklist, buyer lot checklist, negotiation ammo with dollar figures, and a buy/skip verdict.
How is this different from free NHTSA data?
NHTSA gives you raw complaint text. BumperScan cross-references 2.1M+ complaints with community repair cost data, EPA fuel data, and recall records — then uses AI to synthesize it into actionable advice with dollar figures.
How is this different from Carfax?
Carfax is VIN-specific history ($45/report). BumperScan is model-level reliability intelligence — what problems this car is known for, what they cost, and whether you should buy it. Complementary, not competing.
What if the report isn’t useful?
100% money-back guarantee. If the report doesn’t help you make a more informed decision, we’ll refund you — no questions asked.
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