The vehicles contain the EA 189 engines which are fitted with software that was used to con emissions testers in the US.
A company spokesman said: “As a voluntary measure we have suspended the sale of unsold diesel vehicle stocks that have the EA 189 engines.”
He added that around 4,000 vehicles were affected across the Volkswagen, Audi, Skoda and Seat brands.
VW said this equates to 3% of new vehicle stock.
The decision was taken to enable the firm to “resolve the current issue with the vehicles”, the spokesman said.
The firm has announced plans to contact 1.2 million VW owners in the UK to arrange for their vehicles to be “corrected”. The scandal began in the US, where the Environmental Protection Agency said 482,000 Volkswagens were fitted with sophisticated “defeat device” software, which switches engines to a cleaner mode when they are undergoing official testing.
Once on the road the cars produced nitrogen oxide pollutants at up to 40 times the legal standard. VW has admitted that 11 million of its diesel vehicles worldwide were fitted with the software.
Motoring research charity the RAC Foundation said drivers are concerned about what effect the software has had on their cars, and what impact the recall will have on performance. The organisation’s director, Steve Gooding, commented: “Slowly but surely the true impact of this deceit is being revealed. But big questions remain, not least why do VW Group cars in the UK need to be recalled at all?
“If the defeat technology was installed but not used, what is the point of the work? Is there still more to this than we are being told?
“We all want clean air to breathe, but motorists will understandably be worried about the MPG (miles per gallon) implications of these so-called corrections on the cars many will have bought on the strength of their fuel economy.”
Meanwhile several manufacturers have hit back at a study by German-based motoring organisation, Adac, which found that high levels of pollution are being emitted by new diesel vehicles built by a range of car makers other than VW.