C70 L5-2.4L Turbo VIN 63 B5244T7 (2003)
The rear side panel must be removed before any adjustment can take place, see Panels See: Interior Moulding / Trim/Trim Panel/Service and Repair.
The rear side window can be adjusted by moving the stop lug up or down as illustrated.
Check for leaks between the rear side window and weatherstrip, see Checking the seal, front side window.
Adjusting the rear side window laterally