1990 Jaguar XJ6 owners manual 1991 Jaguar XJ6 owners manual 1992 Jaguar XJ6 owners manual 1993 Jaguar XJ6 owners manual 1994 Jaguar XJ6 owners manual 1995 Jaguar XJ6 owners manual 1996 Jaguar XJ6 owners manual 1997 Jaguar XJ6 owners manual
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Throughout the 1970s Jaguar had been developing "Project XJ40" which was an all-new model intended to replace the original (by now Series III) XJ6. Due to problems at British Leyland and the fuel crisis, the car was continually delayed. Proposals from Jaguar's in-house designers and Pininfarina were received. Eventually, it was decided an internal design would be carried through to production.
This car was finally released in October 1986 with (in European markets) controversial square headlamps on all but the lowest specification; these were a lingering feature from the 1970s development. The car was considered more evolutionary than revolutionary,[citation needed] and had to fight off a new competitor: the recently enlarged BMW 7 Series (E32). While the British press favoured the Jaguar, the XJ40 tended to lose comparison tests run by German publications. Only six-cylinder models were initially offered: a 2.9 L (in Europe) and a 3.6 L. The V12 (XJ12) and a long wheelbase model, including a high-roofed Daimler Majestic model destined for official use (one was used by the British prime minister), were again delayed, launching at the very end of the XJ40's life.
The delay in fitting the V12 engine was due to the design of the engine bay which was too narrow to allow a V formation engine, said to have been designed deliberately in that fashion as the Jaguar V12 was by then an aging unit and the designers feared that their parent company would insist use of an engine based on their widely-used Rover V8 engine (a DOHC version of this engine was designed but never produced). Immediately after Jaguar's takeover by Ford in December 1989, work began on redesigning the engine bay to accommodate the V12. Ironically, thanks to Ford, Jaguar was later to find itself back in common ownership with another part of the old Rover family: Land Rover, where they had previously been thanks to British Leyland. However, having since developed their own more modern V8, they saw the reverse happen with a version of their engine fitted to Land Rover models, from which the old Rover V8 was finally dropped.
The single cam 2.9 L straight-6 engine found in Europe was a derivative of Jaguar's legendary 6.0 L V12 HE, but it proved to be underpowered and thirsty compared to the 3.6. L Frequent timing chain failures were also a problem. The engine was later replaced with the 3.2 L, based on the durable 3.6 L, which then became the 4.0 L.
In 1989, under Ford control, the model range was revised with the deletion of the 2.9 L engine, replaced at the low end by a twin-cam 3.2 L version. The 3.6 L was upgraded to 4.0 L. The most obvious interior improvement was replacement of the often unreliable digital dashboard with conventional analogue instruments. In 1994 the XJ6 received a passenger's side airbag which meant the loss of the in-dash glove box.
With the design alteration of the XJ40 engine compartment finally completed, the XJ81 or XJ12 saloon reached the market in 1993 and continued until the end of the 1994 model year. The 1993 - 1994 XJ12 cars marked the introduction of the 6.0L V12 and four speed automatic transmission in the four door saloon. The new four speed automatic transmission in these cars was based on the GM 4L80E and featured an overdrive fourth gear for extended crusing comfort. The 1993 XJ12 cars that entered the United States were titled as 1994 cars. The primary differentiation between these early 1994 cars and the later 1994 cars is the presence of a in-dash glove box in the early cars that was replaced by a passenger's side airbag in the later 1994 cars. The early 1994 cars also had a latice or BBS style wheel in comparison to the somewhat plain wheels used on the later 1994 cars.
With an all-new replacement still years away, in the late 1980s Ford ordered the XJ40 to be facelifted and "retrolutionized", reintroducing some of the style of the popular Series III. The X300, as it was known, was redesigned by head designer Geoff Lawson and was launched as the XJ6 for the 1995 model year.
In addition, a supercharged version of the straight-6 was offered and badged as the XJR. This was the first supercharged Jaguar in the company's history and only the second car Jaguar ever made that used forced induction ? apart from the extremely rare and expensive turbocharged Jaguar XJ220 sports car.
The center section (namely the doors and glass area) was shared with the original "Mark 2" (XJ40) but the X300 saw the XJ6 revert to a traditional fluted bonnet and 4 individual headlights. The front and rear wings, bumpers and bootlid were also redesigned. The interior remained more or less the same as before. The engines were basically the same 3.2 L and 4.0 L units found in the XJ40, but were mildly revised to further increase power and refinement. It was this generation that saw continued improvement in build quality.
1997 was the final year of production for the XJ6. Jaguar switched exclusively to an all-new V8 engine when the XJ8 was introduced at the end of 1997.