How can you reduce the noise generated by your motor vehicle?

Your selection of options 1 and 2 is correct. Driving at a low engine speed helps to reduce the noise produced by the vehicle's engine, which is in line with efforts to minimize environmental noise pollution. Using tyres that have low rolling noise also contributes significantly to reducing overall noise levels while driving.

According to German traffic laws, specifically regulations aimed at minimizing noise pollution, vehicle noise control measures are important for urban areas and residential environments. Therefore, implementing both of these measures supports these regulations and contributes to a quieter, more pleasant driving experience for all road users.

The third option, removing the air filter insert, would not reduce noise and could lead to harmful engine performance issues. This option would actually increase the noise and potentially violate vehicle maintenance regulations.