The start-stop system offers even more fuel economy and fewer harmful emissions. If, for example, you come to a standstill in a traffic jam or at a red light and take your foot off the clutch, the engine is automatically switched off. Simply depress the clutch pedal to move off again. The start-stop system is one of the efficient and environmentally compatible technologies bundled by Volkswagen under the BlueMotionTechnologies umbrella brand.