Front airbags help protect the driver and front passenger by responding to frontal impacts in which safety belts alone would not provide adequate restraint.
Side airbags
In a lateral impact, the side airbag supports the side of the body in the chest and lap area.
Head airbags
In a lateral impact, the head airbag supports the head.
Knee airbag
The knee airbag supports the legs in a frontal impact.
BMW X3 Service & Repair Manual > Brake testing and bleeding: Checking brakes on test stand
Necessary preliminary work:
Check tires for damage.
Check tire treads.
Checking tire inflation pressure.
IMPORTANT:
Make sure the Hill Descent Control (HDC) is not active before driving on to the brake test rig!
The Hill Descent Control (HDC) indicator light must not be on!
Th ...