Volvo C30 2007 Service And Repair Manual page 707

Fig. 35: Identifying Premair Sensor
Courtesy of VOLVO CARS CORPORATION
Only applies to vehicles with premair sensors
Install the connector to the premair sensor
Only applies to vehicles with automatic transmissions
Install:
the oil cooler to the transmission

the bolt.

Applies to all versions
Install:
the connector to the engine cooling fan (FC)

the 2 x hoses in the clips

the cover for the brake control module (BCM).

Top up the coolant. See COOLING SYSTEM - DRAINING, CHARGING AND BLEEDING
Run the engine until the thermostat opens. Top up if necessary.
Install the bumper cover.
ENGINE COOLING FAN (FC) (B5254T7; 2011 LATE -12)
REMOVAL
2012 Volvo C30 T-5
ENGINE Cooling System - Removal, Replacement And Installation