2016 Volvo S80 T5FACTORY OEM SERVICE PROCEDURE

Other Functions

The Mark 60E brake system also includes a number of functions to assist the driver in various braking situations.

Brake assistance 

Emergency brake assistance (EBA) is a function that helps the driver obtain maximum braking effect in an emergency situation. The brake control module (BCM) monitors the pressure in the brake servo with the help of a pressure sensor in the hydraulic unit. Quick movement of the brake pedal (emergency braking) generates a rapid change of pressure in the brake servo. When the control module registers the pressure change, the brake system activates the hydraulic pump. The hydraulic pump increases brake pressure in the brake system to obtain optimum braking effect (more powerful than during normal braking). Full braking effect is maintained as long as the driver maintains or increases pressure on the brake pedal. The function ceases immediately if the driver releases the brake pedal. The function is active from approx. 10 km/h (6 mph) to top speed. The function cannot be disengaged.

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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.