xD L4-1.8L (2ZR-FE) (2008)
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The hybrid type roof headlining consists of eight layers of roof headlining surface material, sound absorbing material, glass mats, barrier sheet and
backing material. Noise from inside the cabin enters through the roof headlining surface material and the sound absorbing material absorbs it.
Noise coming from outside the cabin is insulated by the backing material.
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The hybrid type floor carpet consists of three layers: the outer floor cover layer, sound absorbing material and backing material. Noise from inside
the cabin enters through the outer floor cover layer and the sound absorbing material absorbs it. Noise coming from outside the cabin is insulated
by the backing material.
6) Asphalt Sheet
Asphalt sheet is applied on the underside of the body, reducing splash noise.
3. Reducing Wind Noise