Preliminary work
1. Removing the front engine compartment cover. Refer to 70 02 19 Removing and installing front cover (engine compartment) - as of MY 2003 (All Models) .
2. Remove Y-shaped pipes. Refer to 24 35 19 Removing and installing cowl for throttle housing (Y-shaped pipe) - as of MY 2003 (Cayenne S TIP, Cayenne S MAN, Cayenne S TIO Titan) . Refer to 24 35 19 Removing and installing cowl for throttle housing (intake manifold) - as of MY 2004 (Cayenne TIP, Cayenne MAN) . Refer to 24 35 19 Removing and installing cowl for throttle housing (Y-shaped pipe) - as of MY 2003 (Cayenne Turbo, Cayenne Turbo S) .