Total Complaints
3 filings
MERCEDES-BENZ C450 · model year
2017 MERCEDES-BENZ C450
3 NHTSA complaints, and 1 recall campaign listed for this cohort. A VIN lookup is required to determine whether a specific vehicle has an unrepaired recall.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 2017MERCEDES-BENZC450 carries 3 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 0 crashes, 0 fires, 0 injuries, and 0 fatalities. No NCAP 5-star crash-test rating is available for this model year in the federal database.
The most frequently selected component label in reports for the 2017 C450 is wheels with 1 filings, followed by visibility/wiper (1) and unknown or other (1). Complaint categories reflect owner reports and intake categorization; they do not establish a defect pattern or cause. This cohort has 1 NHTSA recall campaign listed below. Enter a VIN in NHTSA's official recall lookup to determine whether a specific vehicle has an unrepaired recall.
NHTSA currently has 15 investigation files overlapping the 2017 C450. Owners comparing this cohort against neighboring years should read the complaint-by-year trend as report volume, not a causal diagnosis. Use the related-complaint feed and the official recall lookup when researching a specific vehicle.
3
Complaints
0
Crashes
0
Fires
0
Injuries
0
Deaths
Crashes Reported
0 reports
Source
NHTSA ODI
Federal complaints database
Complaints vs. fleet median (215)
At or below the fleet median complaint volume.
Complaints by Component
| Component | Count |
|---|---|
| WHEELS | 1 |
| VISIBILITY/WIPER | 1 |
| UNKNOWN OR OTHER | 1 |
Recalls (1)
17V11400023/02/2017
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 veh
Recent Complaints
20240902UNKNOWN OR OTHER
The glass on the panoramic sunroof exploded/shattered under normal driving conditions. It was raining but not too heavy. It didn’t appear that anything hit the glass and no potholes were hit. It seemed to be due to pressure or temperature which caused the explosion which sounded like a loud gunshot and the glass was in pieces. There were no injuries as the sunroof shade was closed and thus the glass fell on the shade. It has not been inspected by dealership or insurance as closed on Sunday and today due to Labor Day, but yes it is available for inspection upon request. However, as it was raining and I needed to get home, I covered the entire sunroof with Duct Tape.
20231113VISIBILITY/WIPER
- windshield, and I had Satellite repair it through an insurance claim because it was urgent for my safety. - the windshield and its adhesive never bonded together making the windshield structurally unsafe and if I would have gotten into an accident then my vehicles airbags would have not deployed properly. - The issue was brought to my attention from a Satellite repair representative. - yes Safelite who contacted my insurance. - I went through a car wash and found water making its way into my car interior, which I then inspected and found that my windshield was floppy and not attached to my car and how it should.
20170424WHEELS
5 MONTHS AFTER RECIEVEING THE CAR I WAS ON THE HIGHWAY AND MY FRONT PASSANGER SIDE TIRE AIR PRESUURE INDICATOR WENT OFF. I PULLED OFF THE HIGHWAY AND PUT A "FIX A FLAT" IN THE TIRE THINKING I RAN OVER A NAIL. THE TIRE WENT LOW AGAIN SO I DROVE TO THE LOCAL MERCEDES BENZ DEALERSHIP WHERE THEY MOUNTED THE CAR AND SHOWED ME THE "FIX A FLAT" GEL COMING OUT OF THE SIDE OF THE UNDAMAGED TIRE INDICATING A CRACKED WHEEL. THEY REMOVED THE TIRE AND INFACT I HAD A CRACKED WHEEL. 4 MONTHS LATER MY FRONT DRIVERS SIDE AIR PRESSURE INDICATOR WENT OFF WHERE THE MERDCEDES DEALERSHIP CONFIRMED MY SECOND CRACKED WHEEL IN LESS THAN A YEARS TIME!
Mileage: 9
Compare 2017MERCEDES-BENZC450 to Similar Vehicles
NHTSA Investigations
Frequently Asked Questions
How many complaints does the 2017 MERCEDES-BENZ C450 have?▼
The 2017 MERCEDES-BENZ C450 has 3 NHTSA complaints, 0 crashes, 0 fires, 0 injuries, and 0 deaths reported.
Are there any recalls for the 2017 MERCEDES-BENZ C450?▼
Yes, the 2017 MERCEDES-BENZ C450 has 1 recall(s). The most common affected component is ELECTRICAL SYSTEM:STARTER ASSEMBLY. Recalls are issued by NHTSA and manufacturers must provide a free remedy.
What are the most common problems with the 2017 MERCEDES-BENZ C450?▼
The most-complained component for the 2017 MERCEDES-BENZ C450 is WHEELS with 1 complaints. Other frequently reported areas include VISIBILITY/WIPER and UNKNOWN OR OTHER.
Is the 2017 MERCEDES-BENZ C450 safe to buy?▼
Review the complaint history, crash and fire reports, safety ratings, and recall status on this page to make an informed decision. No NHTSA crash test rating is available for this model year. Compare with other model years using the links above.
Where does this data come from?▼
All complaint, recall, and safety rating data is sourced from the National Highway Traffic Safety Administration (NHTSA). Complaints are filed by vehicle owners through NHTSA's Office of Defects Investigation.
Vehicle Safety Guides
Data vintage: August 2026. Sources: NHTSA Office of Defects Investigation (ODI) complaints database, NHTSA recall campaign API, NHTSA NCAP crash-test ratings, and NHTSA FARS for fatality cross-reference.
Every figure on PlainCars is rendered directly from NHTSA complaint and safety data, no number is typed in by an editor. This year-specific record is rendered from NHTSA ODI, recall, and NCAP rows for the 2017 MERCEDES-BENZ C450; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.
Read our methodology - how this data is sourced, computed, and verified.