crash test dummies tour IIHS - 2014 Mercedes M class - small overlap crash test / GOOD EVALUATION /

IIHS News | October 8, 2013

Mercedes-Benz M-Class earns IIHS Top Safety Pick+ award

ARLINGTON, Va. — The 2014 Mercedes-Benz M-Class, a midsize luxury SUV, earns the IIHS Top Safety Pick+ award for good performance in the small overlap front, moderate overlap front, side, roof strength and seat/head restraint evaluations.

Mercedes reinforced the SUV's door sills to improve occupant protection in small overlap front crashes for models built after August 2013.

In the small overlap front test, the driver's space was maintained reasonably well. Injury measures recorded on the dummy indicated that injuries to the left lower leg would be possible in a crash of this severity, but the risk of significant injuries to other body regions would be low. The dummy's head made good contact with the front airbag, which stayed in position during the crash. The side curtain airbag deployed and had sufficient forward coverage to protect the head from contact with side structures and outside objects.

The Institute added the small overlap test to its lineup of vehicle safety evaluations last year. It replicates what happens when the front corner of a vehicle strikes another vehicle or an object like a tree or a utility pole. In the test, 25 percent of a vehicle's front end on the driver side strikes a 5-foot-tall rigid barrier at 40 mph. A 50th percentile male Hybrid III dummy is belted in the driver seat.

The M-Class is the first Mercedes to earn the Top Safety Pick+ award since the Institute began testing for small overlap protection in 2012. Winners must earn good ratings for occupant protection in 4 of 5 evaluations and no less than acceptable in the fifth test.

Source and more info: http://www.iihs.org/iihs/ratings/vehi...

2014 Mercedes M class
Midsize luxury SUV

Test rating scale:

G = Good
A = Acceptable
M = Marginal
P = Poor Small overlap front G Moderate overlap front G Side G Roof strength G Head restraints & seats G

Ratings shown are the latest available for this model year.
See below for ratings based on manufacture date.


Small overlap test deatils:

Applies to 2014 models built after August 2013
Overall evaluation
G
Structure and safety cage
A
Injury measures
Head/neck
G
Chest
G
Hip/thigh
G
Lower leg/foot
A
Retraints and dummy kinematics
G
Important: Frontal crash test ratings should be compared only among vehicles of similar weight.

The Mercedes M class was redesigned for the 2012 model year. Beginning with 2014 models built after August 2013, reinforcements were added to the door sills to improve occupant protection in small overlap frontal crashes (note: information about when a specific vehicle was manufactured is on the certification label typically affixed to the car on or near the driver door). The tested vehicle was built after the door sills were strengthened.
Structure

The driver space was maintained reasonably well, with maximum intrusion of the lower interior of 18 cm at the footrest, and the instrument panel intruded 9 cm.
Restraints and dummy kinematics

The dummy's movement was well controlled. The dummy's head loaded the frontal airbag, which stayed in front of the dummy until rebound. The side curtain airbag deployed and had sufficient forward coverage to protect the head from contact with side structure and outside objects.
Injury measures

Measures from the dummy indicate that injuries to the left lower leg would be possible in a crash of this severity. The risk of significant injuries to other body regions is low.
Tested vehicle specifications
Tested vehicle 2014 Mercedes ML 350 4wd
Weight 4,866 lbs.
Side airbags front and rear head curtain airbags and front and rear seat-mounted torso airbags
Wheelbase 115 in.
Length 189 in.
Width 76 in.
Engine 3.5 L V6
EPA ratings 17 mpg city / 22 mpg highway

Measures of occupant compartment intrusion on driver side:

Test ID CEN1333
Lower hinge pillar max (cm) 10
Footrest (cm) 18
Lower occupant compartment
Left toepan (cm) 15
Brake pedal (cm) 17
Parking brake (cm)
Rocker panel lateral average (cm) 4
Steering column 4
Upper hinge pillar max (cm) 7
Upper occupant compartment
Upper dash (cm) 9
Lower instrument panel (cm) 15
Driver injury measures

Head
HIC-15 182
Peak gs at hard contact no contact
Neck
Tension (kN) 1.0
Extension bending moment (Nm) 6
Maximum Nij 0.19
Chest maximum compression (mm) 25
Femur (kN)
Left 1.5
Right 1.4
Knee displacement (mm)
Left 1
Right 1
Knee-thigh-hip injury risk (%)
Left 0
Right 0
Maximum tibia
Left 0.89
Right 0.71
Maximum tibia index
Left 0.89
Right 0.71
Tibia axial force (kN)
Left 3.9
Right 3.4
Foot acceleration (g)
Left 103
Right 86

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