Volvo C30 2007 Service And Repair Manual page 482

Fig. 105: Identifying Lower/Front Pipe/Hose Connector
Courtesy of VOLVO CARS CORPORATION
Remove:
the rear/upper pipe/hose connector (1) on the compressor.

the front bumper cover. See: COVER BUMPER FRONT (2010-2011 EARLY) , COVER BUMPER

FRONT (2011 LATE - 2012)
the lower connector for the charge air hose to the charge air cooler (CAC) on the right-hand side.
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2012 Volvo C30 T-5
HVAC Climate Units - Removal, Replacement And Installation