Announced here on the eve of the Tokyo Motor Show, the move comes two years after Honda dropped the Rover-sourced diesel when it launched the current Accord.
Mark Davies, Honda UK car sales general manager, said: 'Having pure Honda diesel power in the fleet market is a great shot in the arm for our corporate sales push. It will undoubtedly make the next Accord an even bigger winner.
'Absolute numbers are difficult to predict so far ahead, but we believe the refinement of our first true diesel will win us a new slice of corporate business,'
Honda UK managing director Ken Keir added: 'Changes in tastes have opened up a massive opportunity for us and we see no end to the rise in popularity of diesel cars.
'Registrations have grown by 30 per cent so far this year and it's possible that diesels could soon be accounting for 50 per cent of new car sales in the UK. We can't afford to remain outside this area any longer - it's essential we compete.'
Using second-generation Bosch common rail injection to rival prestige German turbodiesels, the new 2.2-litre unit develops 140bhp at 4,000rpm and provides 243 lb-ft of torque from just 1,750rpm.
Honda product planning chief Kazushigi Toshimisu said: 'In the past, we concentrated on petrol power because most of our business was done in the US. But we now realise we must offer diesel if we are to compete in Europe and we believe we have achieved our target of equalling BMW and Mercedes in refinement.'
- In a first drive of the prototype, the unit is barely audible either on idle or at 100mph, when it is spinning at only 3,600rpm in fifth gear. Likely to be offered with a choice of five- or six- speed manual gearboxes or in five-speed automatic form, it is said to return 51mpg on the combined cycle.