Remove the dipstick tube

Fig 1: Identifying Dipstick Tube And Inlet Hose Clamp

Courtesy of VOLVO CARS OF NORTH AMERICA.

Remove: 

• the battery negative cable. Battery, disconnecting
• the inlet hose between the air cleaner (ACL) housing and the front panel
• the charge air hose from the charge air pipe, push to one side
• the dipstick tube