Hi Manjeet, please submit your request at the given link of Volkswagen Beetle, our customer care executive will provide you all information you need ...
The engine offers a mileage of around 9kmpl in urban roads while on highway it gives a mileage of around 13kmpl. To keep things balanced both fuel options will be introduced, in the diesel fleet a 2.0-litre TDI turbo engine which is capable of producing 138bhp will be brought on board whereas in the petrol line-up a 2.0-litre TSI Turbocharged petrol powertrain which is capable of churning 197bhp will be introduced.
As of now there is no official information from the company regarding diesel version, we would let you know as soon as we get the information.
http://www.cardekho.com/carmodels/Volkswagen/Volkswagen_Beetle