Around 630,000 Audi, Mercedes, Opel, Porsche and Volkswagen cars are to be recalled in Europe owing to irregularities in their emissions values, a German government source told AFP on Friday. 

The German makers have decided to recall the vehicles following an investigation launched in the wake of the Volkswagen engine-rigging scandal.

A probe has been carried out into the emissions values of all models on the roads in Germany in recent months and the transport ministry is scheduled to present the findings of those probes later on Friday.