Tl* the contact owns a 2014 Mercedes benz c250. While the vehicle was parked, the contact noticed a leak coming from the radiator and the transmission. In addition, the contact noticed fuel fumes coming from the oil pan and dip stick in the vehicle. The vehicle was taken to a dealer who was unable to diagnose or repair the vehicle and stated that the vehicle functioned as intended. In addition,…
2014 Mercedes-Benz C-Class powertrain problems
moderate Owners of the 2014 Mercedes-Benz C-Class have filed 8 NHTSA complaints about the powertrain at roughly $2,500 to repair (U.S. federal records, as of September 2026). Source: NHTSA Office of Defects Investigation. See powertrain across all vehicles →
Complaints
8
Recalls
0
Avg fix
$2,500
| Model year | powertrain complaints |
|---|---|
| 2010 C-Class | 15 |
| 2011 C-Class | 7 |
| 2012 C-Class | 5 |
| 2013 C-Class | 18 |
| 2014 C-Class (this page) | 8 |
| 2015 C-Class | 20 |
| 2016 C-Class | 20 |
| 2017 C-Class | 14 |
| 2018 C-Class | 6 |
What stands out
No new NHTSA powertrain complaint has been filed on this vehicle in over 10 years — the issue may be aging out of the active population.
What owners are reporting 1 most recent
Had powertrain trouble with your 2014 Mercedes-Benz C-Class?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the powertrain problem on the 2014 Mercedes-Benz C-Class?
It's a documented issue but not catastrophic. 8 complaints have been filed. Repairs average $2,500 and most owners catch it before it causes a breakdown.
At what mileage does the powertrain typically fail?
Mileage data is limited for this issue. Owners report failures across a wide range, suggesting cause is more about driving conditions and maintenance than mileage alone.
What does it cost to fix?
Independent shops typically charge around $2,500 for powertrain repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to powertrain?
No active recalls currently cover powertrain issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2014/Mercedes-Benz/C-Class.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.