Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

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Sound Proofing / Insulation: Description and Operation

QUIETNESS

Silencers, dual-wall panels, sound-absorbing materials, etc. are utilized in conjunction with a highrigidity and vibration/noise-proof body structure in order to ensure quietness of the passenger compartment.

SILENCERS

Silencers (= asphalt sheets) minimize transmission of noise/vibration into the passenger compartment.






DUAL-WALL TOEBOARD

The toeboard is a dual-wall design consisting of an asphalt sheet placed between two steel panels to reduce the transmission of noise and vibration from the engine compartment to the passenger compartment.