See also:

Recommendations for ventilation and air conditioning
In order for these systems to be fully effective, follow the operation and maintenance guidelines below: To obtain an even air distribution, take care not to obstruct the exterior air intake gril ...

Horn
Audible warning system to alert other road users to an imminent danger. Press the central part of the multifunction steering wheel. Use the horn moderately and only in the following circumstances: ...

Air filter and passenger compartment filter
Refer to the servicing booklet for details of the replacement intervals for these components. Depending on the environment (e.g. dusty atmosphere) and the use of the vehicle (e.g. city driving) ...