Volkswagen Golf R EstateIn a surprise development, Volkswagen Group has revealed around 800,000 cars have been found to have ‘irregularities’ with their CO2 emissions – and this time both diesel and petrol vehicles are affected.

It says CO2 emissions – and, thus, fuel consumption figures – were “set too low during the certification process”.

This means that some Volkswagen Group cars are consuming more fuel than official figures suggest. CO2 emissions will also be higher than the tests suggest.

“The majority of the vehicles concerned have diesel engines,” adds Volkswagen in a statement, indicating that petrol engines such as the group’s TSI and TFSI motors have been dragged into the emissions scandal for the first time.

Initial figures suggest the CO2 scandal could be even more costly than the Volkswagen NOx scandal: although ‘only’ 800,000 cars are affected, the firm has already put the economic risk of the issue at €2 billion.

A total of 11 million Volkswagen Group cars are affected by the NOx scandal, for which it has set aside €6.7 billion.

“From the very start I have pushed hard for the relentless and comprehensive clarification of events,” said VW CEO Matthias Müller.

“We will stop at nothing and nobody. This is a painful process, but it is our only alternative. For us, the only thing that counts is the truth. That is the basis for the fundamental realignment that Volkswagen needs.”

He also apologised once again: “The Board of Management of Volkswagen AG deeply regrets this situation and wishes to underscore its determination to systematically continue along the present path of clarification and transparency.”