You are driving a motor vehicle with a manual gearbox. What is the logical thing to do so that the cruise control system can contribute to a fuel-efficient driving style?

The selected option is correct because selecting the right gear is crucial for the efficient operation of the cruise control system in a manual transmission vehicle. When you’re in the correct gear, the engine can operate within its optimal power band, which enables better fuel efficiency.

In addition to selecting the right gear, considering the use of cruise control in stop-and-go traffic conditions is important as well. In such scenarios, cruise control might not be as effective due to constant speed adjustments and braking, which can actually lead to increased fuel consumption.

Accelerating in good time on long inclines is also relevant, as it helps maintain speed without putting excessive strain on the engine, thereby aiding in fuel efficiency.

Understanding these combinations is vital under German traffic regulations, as they encourage not only compliance with safe driving practices but also the objective of reducing fuel consumption and emissions on the road.