Mitsubishi Motors’ president and executive vice president will step down following its fuel economy testing scandal as Suzuki admits “discrepancies” in its emissions testing.

Tetsuro Aikawa and Ryugo Nakao will officially leave their posts on June 24.

The news comes less than a week after Nissan bought a controlling stake of 34% in Mitsubishi with an investment of 237 billion yen (£1.52bn).

Nissan’s investment may allow the brand the opportunity to regroup after it admitted overstating the fuel economy of four minicar models – sold in Asia only – by as much as 15% and improperly testing other vehicles over a 25 year period.

The former prosecutors are now investigating improper testing that Mitsubishi Motors and are expected to report their findings in July.

Suzuki today issued a statement in which is stated that “some discrepancies were found in the automobile emission and fuel-efficiency testing process," which did not subscribe to the tests demanded by government.

It admitted that the improper tests applied to a period dating back to 2010 and affected sixteen models – about two million cars – not sold outside Japan.

Suzuki added, however, that “any wrongdoing, such as manipulation of fuel efficiency data, were not found,” before stating that official emissions figures would not require amendment.