The head of VW cars in the UK has apologised "unreservedly" for "significantly" letting down its customers in the diesel emissions scandal.
It comes days after the American boss of VW made a 'sincere apology' over the scandal which has affected more than 11 million cars worldwide.
Over a million cars in the UK are said to be affected by the Volkswagen diesel emissions scandal.
At a hearing in Westminster, the transport committee heard from the UK boss of VW that almost 1.2 million cars are affected in Britain and the recall will begin in the new year.
During the grilling, UK managing director Paul Willis - who started proceedings with an apology - conceded that there may be "some risk" that a target to do all the work needed by the end of 2016 would be missed.
Some 400,000 would need changes to their fuel injection systems as well as having the software removed, he said - though he was unable to give any technical explanation to the frustration of MPs.
Transport secretary Patrick McLoughlin said VW had told his department that 583,000 Volkswagen cars will be affected by the recall in the UK, along with 393,000 Audis, 132,000 Skodas and 77,000 Seats - making Britain the second worst affected country in Europe after Germany.
VW car owners in the UK who are concerned that their vehicle may be affected can check online here.
Volvo withdrew an app comparing cars' emissions in 2011, after being told by that the data "could not be taken seriously".
Volkswagen's US boss has admitted he was told in spring last year of the emissions cheating affecting millions of the company's vehicles.
Volkswagen could start recalling cars containing emissions cheating software in January, according to the firm's new chief executive.