The move is the latest measure Volkswagen has taken to repair its reputation since Mr. Diess was appointed chief executive in April. He acknowledged in a speech soon afterward that the carmaker had “to become more honest, more open, more truthful.”
PETA welcomed the latest development.
“Volkswagen did the right thing in pledging to no longer conduct tests on animals, which are irrelevant to human health and not required by law,” said Kathy Guillermo, a senior vice president at the group. “PETA is calling on other carmakers that still test on animals to follow suit and embrace modern and humane, animal-free research methods instead.”
For Volkswagen, the fallout from the diesel-cheating episode has yet to abate. Last month, a former chief executive of the company, Martin Winterkorn, was charged with conspiracy over the emissions rigging. The carmaker also faces a lawsuit by shareholders that could add around $10 billion to the huge cost the company has already incurred.
Volkswagen has pleaded guilty in the United States to charges related to the scheme, admitting that it illegally sold nearly 600,000 vehicles equipped with so-called defeat devices. It has paid more than $25 billion in fines and civil damages. Two executives have been sentenced to prison, and American authorities have brought charges against several others.
A Volkswagen spokesman did not immediately respond to a request for comment.