Smooth Start-Up
Smooth start-up describes a new feature of the E65 which starts the power windows with a linear increase in speed up to full speed. Smooth start-up takes place in both the closing and opening directions.
Clunking noises are avoided in the door due to the low speed as play in the window lift assembly is taken up.
To ensure that the windows remain quiet during the entire service life of the vehicle, the gradient of the first ramp is less steep than that of the second ramp. The total window travel until the full desired speed is reached is approximately 5 mm.