Volvo C30 2007 Service And Repair Manual page 574

Position the fuel line.
Install the upper fuel connection using a new clamp.
HINT: Use: see 9512619 to secure the clamp.
Secure the engine coolant heater in the bracket. Tighten. See: TIGHTENING TORQUE .
Install:
the fuel pipe in the clip mounting

the exhaust system. See: FUEL FIRED BOOSTER HEATER EXHAUST PIPE

the intake hose

the lower quick-release connector for the fuel pipe. Secure the fuel pipe in the lower mounting.

NOTE: Wipe up any fuel spills.
Carry out finishing work.
FUEL LINE, CENTER, REPLACING
REMOVING THE CENTER FUEL LINE
Raise the vehicle.
Remove the front and rear quick-release connectors for the fuel line.
Disconnect the fuel line from the mounting points. Route the fuel line back under the front SIPS member.
INSTALLING THE CENTER FUEL LINE
Route the fuel line under the front SIPS member. Secure the fuel line in the mounting points.
Install the front and rear quick-release connectors for the fuel line.
Carry out finishing work.
SUCTION PIPE, FUEL TANK, REPLACING
REMOVING THE SUCTION PIPE
2012 Volvo C30 T-5
HVAC Climate Units - Removal, Replacement And Installation