On the E65, side airbags are installed in the front doors and are optional for the rear doors. The strategy of having the rear side airbags disconnected from the factory continues with the E65. The AHPS II system is not affected because they pose no risk to children sitting out of position.

The side airbags reduce the risk of occupant injury in the torso region of the body in the case of a side collision. Compared to the AHPS, the side airbags deflate relatively quickly, with a precise damping effect.

In conjunction with the Advanced HPS, it provides optimum side protection. The airbag shape is designed to be compatible with various occupant positions and sizes. The principle of the side airbags is identical to that used so far in the other models.

A new feature is that the airbags are fitted in a function unit within the door trim. This significantly improves the effect if the inflation is obstructed, (e.g. occupants leaning heavily on the paneling).

Moreover, the airbag no longer emerges into the passenger compartment by opening a cover in the door trim, but by tearing a seam in the middle area of the panel.

As before, a one-stage gas generator with a high proportion of inert gas is used. The volume is approx. 12 liters. The front and rear airbags are identical parts. The front side airbag is bolted at two points, the rear at another additional point to the door frame.

Fig 1: Identifying Side Airbags

Courtesy of BMW OF NORTH AMERICA, INC.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

Side Airbags

Use the Manual With the Right Hardware

When to See a Mechanic