On October 9, 2014, Wan was expelled from the Communist Party of China following an internal investigation. The investigations led to criminal charges of bribery. The Central Commission for Discipline Inspection said that Wan sought benefits for others through abuse of power, solicited and accepted large bribes, violated the Eight-point Regulation, and often frequented private clubs. It was reported that the club he frequented in the Baiyun Mountain was closed by the authorities. At the fourth plenum of the 18th Central Committee held on October 23, the full Central Committee ratified Wan's expulsion from the body and the party itself.