16 LX470 — NEW FEATURES 7. Intake and Exhaust System Air Cleaner A charcoal filter, which adsorbs the HC that accumulates in the intake system when the engine is stopped, has been added in the air cleaner cap in order to reduce evaporative emissions. Charcoal Filter Air Cleaner Cap 030LX09C Service Tip The charcoal filter, which is maintenance-free, cannot be removed from the air cleaner cap. Throttle Body A lightweight and compact throttle body is used. 273GX07 ’05 LX470 ’06 LX470