Volkswagen AG is accusing a lead attorney in the diesel emissions litigation of double-counting his billable hours, the latest pushback the automaker has lodged over legal fees requested by plaintiffs attorneys.

As part of its $14.7 billion settlement, Volkswagen agreed not to contest $175 million in fees and expenses sought by lead plaintiffs attorneys in resolving consumer claims over nearly 500,000 diesel vehicles. Four months later, with its hands seemingly tied in that prong of the case, Volkswagen is fighting back against additional fee requests.