C-Class chief engineer Christian Frueh comfirmed the news and said that the electric saloon would have a different design to the C-Class.
An EQ compact saloon will add to the already confirmed line-up of the EQ A hatchback and EQ C SUV.
Mercedes officials told Autocar last year that it was also planning a similar strategy for a large electric saloon, with an EQ model instead of a zero-emission S-Class.
Overall, Mercedes has revealed it will launch ten new electric models by 2025. They will all share the same platform – the Modular Electric Architecture (MRA). Like most electric cars it features a ‘skateboard’ chassis, which offers benefits for packing, particularly for interior space.