xB L4-1.5L (1NZ-FE) (2004)
Sound Proofing / Insulation: Description and Operation
Low Vibration and Low Noise Body
1. General
Effective application of vibration damping and noise suppressant materials reduces engine and noise.
2. Sound Absorbing and Vibration Damping Materials
^ Adoption of a large - size dash panel silencer, the dash outer silencer and food silencer made the reduction of the engine and road noise and improved
the quietness in the compartment. However, on some models the establishment is different.
^ The adoption of the floor silencer realized the reduction of the engine and road noise. Also, the adoption of RSPP (Recycled Soundproof Products) for
raw material realized the improvement of recyclability.
^ Foamed urethane sponge, foamed seal material and felt are applied onto the roof panel, pillars and doors to reduce wind noise.
^ Silencers made of foam material or felt are provided on the roof to minimize the entry of sounds into the cabin.
3. Front Suspension Member