Jaguar prepares four-cylinder diesel XFLand Rover Freelander engine to be used
01 April 2011
Jaguar is readying its much-needed four-cylinder 2.2-litre diesel version of the XF, and plans to reveal the model in full at the New York Auto Show on April 22.
The new Jaguar 2.2D will take the fight to the BMW 520d and Audi A6 2.0 TDI – four-cylinder entry-level diesels account for over half of sales in this sector, and Jaguar has been missing out until now with its range of 3.0-litre V6-only diesels.
Crucially, the new Jaguar XF 2.2D will boast the best economy and emissions performance of all Jaguar XFs: claimed average fuel economy is 53.2mpg and the CO2 figure has been trimmed to 149g/km. That’s 11.2mpg more than the current V6 diesel.
Familiar diesel engine
The diesel chosen for the Jaguar XF 2.2D will already be familiar to Jaguar Land Rover followers: it is used in the Land Rover Freelander, in both 150hp and 190hp guise.
Fittingly, it is the higher-powered version that Jaguar is using for the XF 2.2D. It also produces 332lb ft of torque, which helps it achieve 140mph. 0-62mph takes 8.5 seconds.
Fitted as standard is a new eight-speed ZF automatic gearbox - seventh and eighth gears are overdrive ratios, which improves high-speed cruising efficiency. Until now, the Jaguar XF has used an older six-speed version of the ZF automatic: the eight-speed unit is expected to arrive within other models in time.
Jaguar has also fitted stop-start to the new Jaguar XF 2.2D – again, for the first time in the XF range. It is another application of smart stop-start to an automatic transmission, and uses a battery of sensors and feeds.
Indeed, Jaguar is describing it as ‘intelligent stop-start’. That’s because, unusually, it doesn’t require the engine to be completely stopped before it can be restarted again. This is useful at roundabouts, where the driver may briefly stop, then spot a gap to rush for – only to find the engine is still shutting down.
Jaguar’s system allows the car to be restarted even if it is still rotating at 400rpm (around half normal tickover speed), resulting in fewer delays. The standard stop-start system also saves between 5-7% in fuel consumption, says Jaguar.
Find out more about stop-start technology here
Key new car
The new Jaguar XF 2.2D is expected to go on sale later this year, and will be a key model for Jaguar across Europe. That’s why the CO2 figure has dipped below the 150g/km mark (although further benefits would be found if it could have fallen beneath 140g/km…).
Refinement shouldn’t suffer compared to the V6s, reckons the firm. Extensive work on sound deadening and bulkhead design, plus clever active engine mounts, has cut 3dB from sound levels, while experience of this engine in the Land Rover Freelander suggests it should be smooth.
More details of the 52mpg Jaguar XF will follow next month – including, we hope, prices and UK specifications.
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