Abstract: A first deflection member and a first wall produce a first air flow therebetween. The first deflection member and a second wall produce a second air flow therebetween. The first deflection member switches between a first state, in which the first air flow is higher in flow rate than the second air flow, and a second state other than the first state. A guide wall is a part of the first wall to bend the first air flow in the first state to guide the first air flow away from the second wall. A second deflection member on the downstream side of the first deflection member causes deflection of the second air flow to be away from the second wall in the first state. In the second state, the second deflection member reduces or prohibits the deflection of the second air flow.

Abstract: Motor vehicle comprising a passenger compartment (12), a front compartment (14), which is arranged in the front of the passenger compartment (12), and a heat exchanger unit (16), comprising an engine cooling radiator arranged in the area separating the passenger compartment (12) from the front compartment (14). The motor vehicle comprises a manifold for conveying a flow of air (22), with an air flow inlet section (28) arranged in the front part of the motor vehicle and an air flow outlet section (30) arranged in the rear part of the front compartment (14), in correspondence to said heat exchanger unit (16).