Volvo C30 2007 Service And Repair Manual page 463

Fig. 89: Identifying Feeler Gauge Between Clutch Plate And Pulley
Courtesy of VOLVO CARS CORPORATION
Check the clearance between the clutch plate and pulley. Use a feeler gauge.
The clearance should ideally be 0.3 mm all the way around, although a play up to max. 0.5 mm is allowed.
Replace the shims if the clearance is not within the stated values.
FINISHING
INSTALLING COMPONENTS
2012 Volvo C30 T-5
HVAC Climate Units - Removal, Replacement And Installation