NHTSA (USA)High Risk
At a glance
What can fail
The front passenger air bag may be incorrect, possibly installed during a prior repair, and may not function properly in a crash.
What the fix does
This page covers 4 recalls and EPA fuel economy for the 2014 Mercedes-Benz C350.
23 mpg combined
10.2 L/100km
Compact Cars
Fuel economy data from fueleconomy.gov (EPA / U.S. Dept. of Energy). Annual cost based on 15,000 mi/yr at 55% city driving and current fuel prices. MPG is U.S. gallons; L/100km converted. Ranges reflect the 4 tested variants for this model year.
The 2014 Mercedes-Benz C350 has 4 recalls, the most serious involving the airbag system: the front passenger airbag inflator can explode and send metal fragments into the cabin, and the driver airbag can deploy without warning.
Both of these airbag concerns involve the frontal restraint system. The passenger-side inflator can rupture violently, sending sharp metal pieces toward the passenger or other occupants, which can cause serious injury or death. Separately, the driver airbag can activate without any crash occurring, which raises the risk of both injury and loss of vehicle control. A third airbag issue may affect vehicles that previously had front passenger airbag work performed: an incorrect replacement airbag may have been installed during that earlier repair, and an airbag of the wrong specification may not deploy correctly in a crash, leaving the occupant without adequate protection. On the electronics side, a software fault in the emergency call system can cause it to report the wrong date, time, and vehicle location when placing an automatic crash call, which may delay emergency responders in reaching the scene.
At a glance
What can fail
The front passenger air bag may be incorrect, possibly installed during a prior repair, and may not function properly in a crash.
What the fix does
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Dealers will replace the front passenger air bag at no cost to you.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
A software error causes the eCall emergency system's date and time to be incorrect, which may result in an inaccurate vehicle location being sent during an emergency call.
What the fix does
Mercedes-Benz will send a remote software update to your vehicle. Dealers will verify the update worked or install a new communication module software at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The passenger front air bag inflator may explode due to propellant breaking down after prolonged exposure to high humidity, heat, and temperature changes.
What the fix does
Dealers will replace the passenger front air bag module at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The driver's airbag may deploy unexpectedly if the steering components lack proper grounding and the airbag clockspring is broken, allowing electrostatic discharge to trigger deployment.
What the fix does
Dealers will add grounding to the steering components to prevent electrostatic discharge from triggering the airbag.
Summarized — see the official notice for exact wording, dates, and contacts.