Cayenne (9PA) V6-3.2L (2006)
Removing left knock sensor
NOTE: This knock sensor is fitted half-hidden behind the water tube at the same level as the oil/water heat exchanger. It is difficult to reach.
1. Remove oil dip stick guide tube.
2. Loosen vacuum unit -9 to 16- and lay it to one side. To do this, loosen the fastening pin -8- and pull unit out of the perforated bracket.