In an official statement provided to PH, JLR said: "Jaguar Land Rover is conducting a voluntary recall following the identification of Carbon dioxide performance variability with certain Jaguar and Land Rover vehicles fitted with 2.0-litre diesel or petrol engines".
The manufacturer said that some of the models will need physical repairs in a dealership, while some will need software updates.
Ten models for Land Rover and Jaguar brands were emitting more greenhouse gases than certified initially, according to the Vehicle Certification Agency.
The CO2 performance variability was discovered by UK's Vehicle Certification Agency. The DVSA in turn notified the European Commission's rapid alert system.
One of the alerts issued said: "Certain vehicles fitted with 2.0L diesel engines may emit excessive levels of Carbon dioxide and may not conform with the certified condition". Any recall work done on your vehicle will be free of charge.
A statement from JLR reads: "The modifications will be made free of charge, and every effort will be made to minimize inconvenience to the customer". Cars manufactured between 2016 and 2019 were recalled.
Land Rover Discoveries with the 2.0-litre Ingenium engine are among the models being recalled.
Natalie Hitchins, head of home products and services at consumer group Which?, said: "Consumers must be able to fully trust the claims of vehicle manufacturers, particularly after the emissions scandals of recent years".
It's only a week since Jaguar Land Rover proved how low their diesel vehicle emissions now are by using independent testing by AIR Index to demonstrate just how clean their engines now are.