The C-Class Sedan’s pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The ES doesn’t offer pre-crash pretensioners.
The C-Class Sedan has a standard front seat center airbag, which deploys between the driver and front passenger, protecting them from injuries caused by striking each other in serious side impacts. The ES doesn’t offer front seat center airbags.
Earlier warning of stopped traffic, traffic signals, dangerous road conditions, weather, or accidents, can keep driver's safer and prevent crashes. The C-Class Sedan offers optional Car-to-X Communication, a system that seamlessly communicates important warnings to the driver about impending danger, if they're available. The ES doesn’t offer a system that can receive automated systems from infrastructure or other vehicles.
To help make backing out of a parking space safer, the C-Class Sedan has standard Rear Cross-Traffic Alert with Active Brake Assist, systems which detect vehicles approaching from the sides and can automatically apply the brakes to prevent a collision. Rear Cross-Traffic Braking costs extra on the ES.
Both the C-Class Sedan and the ES have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, side-impact head airbags, front and rear seatbelt pretensioners, height adjustable front shoulder belts, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, post-collision automatic braking systems, daytime running lights, blind spot warning systems, rearview cameras, rear cross-path warning, driver alert monitors, available all wheel drive, lane departure warning systems and around view monitors.
The Insurance Institute for Highway Safety does 40 MPH moderate front offset crash tests on new cars. In this updated test, results indicate that the C-Class Sedan is much safer than the ES:
|
C-Class Sedan |
ES |
Overall Evaluation |
GOOD |
MARGINAL |
Structure |
GOOD |
GOOD |
|
Driver Injury Measures |
|
Head/Neck Rating |
GOOD |
GOOD |
Chest Rating |
GOOD |
GOOD |
Thigh/hip Rating |
GOOD |
GOOD |
Leg/foot Rating |
GOOD |
GOOD |
Restraints |
GOOD |
GOOD |
|
Rear Passenger Injury Measures |
|
Thigh Rating |
GOOD |
GOOD |
Restraints |
GOOD |
MARGINAL |
Side impacts caused 23% of all road fatalities in 2018, down from 29% in 2003, when the Insurance Institute for Highway Safety introduced its side barrier test. In order to continue improving vehicle safety, the IIHS has started using a more severe side impact test: 37 MPH (up from 31 MPH), with a 4180-pound barrier (up from 3300 pounds). The results of this newly developed test demonstrates that the Mercedes C-Class Sedan is safer than the ES:
|
C-Class Sedan |
ES |
Overall Evaluation |
GOOD |
ACCEPTABLE |
Structure |
GOOD |
ACCEPTABLE |
|
Driver Injury Measures |
|
Head/Neck |
GOOD |
GOOD |
Head Injury Criterion |
238 |
403 |
Neck Compression |
-892 lbs. |
89 lbs. |
Torso |
ACCEPTABLE |
ACCEPTABLE |
Shoulder Deflection |
1.46 in |
1.54 in |
Shoulder Force |
-290 lbs. |
379 lbs. |
Pelvis |
ACCEPTABLE |
ACCEPTABLE |
Head Protection |
GOOD |
GOOD |
|
Passenger Injury Measures |
|
Head/Neck |
GOOD |
GOOD |
Neck Tension |
89 lbs. |
134 lbs. |
Neck Compression |
-45 lbs. |
22 lbs. |
Torso |
GOOD |
GOOD |
Shoulder Force |
-223 lbs. |
89 lbs. |
Torso Max Deflection |
.75 in |
1.02 in |
Torso Deflection Rate |
4 MPH |
10 MPH |
Pelvis |
GOOD |
MARGINAL |
Pelvis Force |
602 lbs. |
1205 lbs. |
Head Protection |
GOOD |
GOOD |
The Mercedes C-Class Sedan has achieved the Insurance Institute for Highway Safety’s (IIHS) highest rating of “Top Safety Pick Plus” for the 2024 model year. This distinction is based on its exceptional performance in IIHS’ rigorous battery of safety tests. Specifically, it earned a “Good” rating in the latest, more stringent moderate overlap front crash test, a “Good” result in the updated side impact test, and an “Acceptable” to “Good” score in the revised pedestrian crash prevention test. The ES was last only a “Top Safety Pick” in 2023 but no longer qualifies.