The diesel-automatic alternative
For the first time in the X-TYPE range, buyers can opt for diesel power and an automatic transmission. The 2.2 litre diesel is paired with a new six-speed automatic gearbox, which has the added attraction of 'one-touch control' Jaguar Sequential Shift, for manual gearchanges.
"The combination of diesel power with automatic transmission and Jaguar Sequential Shift adds yet another dimension to the X-TYPE", commented X-TYPE Chief Programme Engineer, Kevin Stride. "Furthermore, all the actions we have implemented on the new car improve its refinement and drivability".
The six gear ratios are chosen to deliver refined cruising while maintaining sporty performance – the balance that Jaguar research shows an X-TYPE owner wants. Where the 2.2 litre diesel with manual transmission can achieve maximum torque from second gear, the new combination can achieve maximum torque in all six gears, utilising optimum gear change points to ensure best use of the available torque. This delivers significant benefits to performance 'feel' and the performance of the diesel automatic is impressively close to that of the diesel with the manual transmission. In the new X-TYPE saloon, the 2.2D manual version has headline figures of 0-60mph in 8.7 seconds (0-100kph in 9.1 seconds), a maximum speed of 134mph (216kph), a combined economy of 47.1mpg (6.0l/100km), and a CO2 rating of 159g/km. The respective figures for the 2.2D automatic are 9.5 seconds (9.9 seconds), 129mph (208kph), 41 mpg (6.9l/100km) and 184g/km. The comparative figures – shown in full in the specification tables - are similar for estate versions.
Thanks to the new transmission’s advanced electronic control, it offers rapid responses to shift commands, and a choice of operating modes. Moving from fully automatic to ‘manual’ mode automatically selects a ‘Sports’ setting: this delivers more involving, sporty shift dynamics – with the added benefit of simple, one-touch up- or down-shifts using the Jaguar Sequential Shift programme.
As well as the changes needed to install the new transmission, extensive measures were taken to optimise cooling, weight and noise, and vibration and harshness (NVH) characteristics. These include at a physical level, a greater volume of and improvements to sound insulation materials, while in the electronic arena the Engine Speed Control (ESC) smoothes downshifts and the torque converter is given a degree of slip that both improves its NVH qualities and gives improved drivability and economy.