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Types and functions of pillars on cars

Types and functions of pillars on cars

You might have come across the terms of pillars A, B, C and D in the automotive world, however not a few of us who doesn’t know their whereabouts and the functions. Before discussing further, it would be nice for you to know the main function of the pillars on the car.

Just like a building that must have support poles to support the weight, a car must also have support poles at each point.

These poles are known as pillars. Pillars on a car usually consist of 3 pillars, primarily named pillar A, B and C. However, there are also cars that consist of 4 pillars, namely pillars A, B, C and D.

The type of cars that have 4 pillars are MPV and SUV types (7 seaters) and while cars that only have 3 pillars are sedans and hatchbacks. Below picture following is the location and function of the pillars contained in the car.

Ganti ban mobil cuma satu tidak di sarankan Also read: What is the function of TPMS

Pillar A
Located at the front of the car as a support for the front roof and to hold the windshield. In addition, the A-pillar is also a place to install the airbag pillar (curtain airbag) and the front mirror of the car.

Pillar B
Located in the center of the car, exactly behind the front door of the car. This pillar has a function to connect the roof and front side doors as well as a place to attach seat belts for the driver and front passenger.

Pillar C
Located at the back of the car as a support for the rear roof and to hold the rear windshield of the car. Pillar C is also a place to attach the rear passenger seat belt.For MPV and SUV (7 seater) type cars that have 4 pillars, the function of the C pillar is the same as the B pillar, namely to connect and support the roof and to install a seat belt in the middle passenger.

Pillar D
Only found in MPV or SUV type cars that have 7 seats. Located at the back of the car as a support for the rear roof and to hold the rear windshield of the car.

The installation of pillars on vehicles is not only intended to strengthen the vehicle, but also has functions to increase the safety of the driver and passengers of the car. In the event of a collision, the pillars will do their and absorb the impact. The thicker the pillars, the sturdier the car is and the less damage caused by the impact.



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