Volkswagen has said it will buy back new or nearly new diesel cars affected by diesel bans in German cities.
A German court recently ruled that cities should be allowed to ban some diesel cars to reduce pollution.
The scheme will only apply in Germany but, if diesel bans spread, VW may expand it outside the country.
Only vehicles bought after April will be eligible and customers will be tied into buying a replacement vehicle from the same dealership.
The guarantee will last for three years. VW has also extended its diesel scrappage scheme, its “diesel environmental incentive”, until the summer.
The scheme, similar to those run by other German car manufacturers, offers bonuses to customers trading in their older diesel cars.
VW says that the scheme has taken some 120,000 old diesel vehicles off the road since August last year.
