Ford AJD-V6/PSA DT17 - AJ-V6D Gen III

AJ-V6D Gen III

It is a family of twin turbocharged engines introduced with 2010 model year Jaguar Land Rover Citroen Peugeot vehicles. The Gen III is produced in a larger capacity than the original version, being a 3-litre design. It uses 'parallel serial' turbocharger system. The block is made from compact graphite iron. The common rail injection system includes 2000bar injectors. Emission is reduced via common rail injection, exhaust gas recirculation, and diesel particulate filters.

The parallel sequential system uses only the larger variable geometry turbocharger when engine is running at low RPMs. Once the engine has reached 2800 rpm, the smaller fixed turbocharger is used to push boosted air to the intake port of the larger turbocharger, before the boosted air from the smaller turbocharger is redirected to intercooler 300 milliseconds later, when the smaller turbocharger is fully operational.

Fuel injector includes a piezo crystal fitted nearer to the tip to reduce engine noise, and a metering mode to reduce oversupplying of fuel that increases unused fuel temperature and energy consumption.

The Gen III is standard fitment in the Land Rover Discovery 4 and as the smallest diesel available in the Range Rover Sport. In Land Rover products the engine is badged as the 3.0 TDV6. Jaguar fit the Gen III to the XF and XJ models. Jaguar tested versions of the XK fitted with the engine but did not carry the project on to production. As with the 2.7-litre engine the Land Rover variants feature a viscous-coupled cooling fan, larger and deeper oil sumps, improved dust and water sealing and a unique calibration of the engine's electronics to allow the use of low-quality fuels.