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In Reply to: Re: To X-Type Automatic Transmission Owners... posted by Matt on January 07, 2002 at 10:48:07:
I've included the link to the .PDF file with the specifications. As you can see, the automatic is made by Jatco. Here are a few paragraphs:
"Getrag 5-speed manual
The Getrag manual transmission features a
cable-shift mechanism which provides efficient,
precise gear ngagement,enhancing the car's
sporty feel,and eliminates harsh engine load
changes via the shift lever,reducing powertrain
vibration.
Gear ratios (third,fourth and fifth)have been
modified compared to the 2.5 and 3 litre,
giving optimum acceleration and performance
with the 2 litre V6 engine.With a final drive
ratio of 3.8:1,the manual transmission
achieves the optimum combination of
performance,fuel economy and refinement.
The self-adjusting,240 mm diameter clutch,
equipped with a two-mass flywheel for
vibration insulation,helps extend the service
life of the transmission to 150,000 miles
(240,000 km).All major components and
casings are of lightweight,die-cast aluminium,
so that the clutch system weighs just 17.9 kg
and the overall transmission weight is only
47.7 kg,with a fill-for-life oil capacity of
2 litres.
The gear shift knob features the distinctive
Jaguar 'growler'emblem at the centre ,and has
a ring-pull mechanism for reverse gear."
"Jatco 5-speed electronic automatic
Fully electronic 5-speed automatic
transmission,available as an option on all
models,is provided by the Jatco FPD transverse
automatic gearbox.The gearbox features a
wide gear ratio spread,with a low first gear for
optimum off-the-line acceleration,while the
overdrive fifth gear helps to deliver excellent
fuel economy and refined motorway cruising.
The final drive ratio of 4.15:1 combines
performance and fuel economy,while pre-
programmed software strategies are designed
into the transmission system,for optimum
performance under various conditions.For
example,on uphill gradients,the transmission
adapts the shift pattern to make better use of
engine power and aid engine cooling;and
when either optional cruise control or optional
Dynamic Stability Control (DSC)are activated,
the transmission selects a shift pattern to suit.
The electronic transmission control module
co-ordinates engine control information,
modifying the shift schedule to provide
smoother shifting during acceleration and
deceleration.
A low-inertia,slip-controlled lock-up torque
converter features a single-friction face clutch
with torsional damper to achieve a near-locked
condition at low speed in high gears,
enhancing fuel economy and refinement.The
clutch disengages automatically before a
downshift,for smooth power delivery.
The two-piece,die-cast aluminium transmission
casing is extremely rigid,contributing to
vehicle refinement.The transmission is a 'fill-
for-life'unit,benefiting cost of ownership."
mike
Has anyone discovered where the auto transmission is made? Some weeks ago there was mention on this bb that it was by Getrag, Germany. I contacted thier tech dept and they do not produce the x type transmissions.
The transmission is as smooth as silk on mine but I am unsure whether to stay in Drive at stop lights as taught by the Institute of Advanced Motorists, or go to Neutral as stated in the handbook - any info out there?
Regards
Matt.
I don't find it any different that most other auto trannys. They all exhibit this kind of behavior (not the clunkiness, I don't detect any clunkiness at all) to some degree. Eventually, you adjust and learn what you have to do with throttle position to get the box to do what you want.
In a couple of reviews that I've read, the reviewers have stated that the X-Type automatic transmission is clunky, indecisive and lacks refinement, and in certain driving conditions, it seems to be 'searching' for the right gear.
Have any owners experienced problems? What's the automatic transmission like in your car?
Thanks.