Start-off Assist makes it easier to start off on uphill slopes:
Start-off Assist, an integral part of the ESP®, makes it easier to start off on uphill slopes: After the brake pedal is released, brake pressure is maintained for approximately two seconds, allowing the driver to move their foot from the brake pedal to the accelerator without having to worry about the vehicle starting to roll back. Start-off Assist is active on uphill slopes of approx. 4% or more. It is not activated when starting off on the level or on a downhill slope.