I finally found a pull-off CBV diaphragm from a turbo shop in Arkansas. Volvo does not carry this part new, and there are apparently no aftermarket replacements either.
Has anyone ever found a source to replace this part new? Volvo's solution is apparently replace the entire turbo for want of a $40 piece of rubber.
Has anyone ever found a source to replace this part new? Volvo's solution is apparently replace the entire turbo for want of a $40 piece of rubber.