XF 2.2 200PS 2013

I am not sure whether this is a fault or not but I would like to hear your comments and hopefully a solution.

I feel that the car seems to be on one gear too high when driving at a leisurely pace between 35 to 50mph and revs at just under 1500.

By down shifting one gear (- paddle) the car sounds better instead of vibrating a bit and sounding a little bit booming like the engine is labouring.

Difficult to describe the feeling (this is my first diesel) but is not what I would expect from a luxury car.

Your comments and suggestions please

 

Diesel engines typically deliver torque from pretty low revs so it might be more sound than actual performance. I assume your mode has a Sport mode - what's it like in Sport? You may find that's more to your liking - tends to change up later

 

I had the exact same "problem" in my old 2010 XFS - the non NAS version with the 3.0 V6 twin turbo diesel. Stock it had plenty of torque, 600 Nm, and then I tuned it to put out around 700 Nm, with most of that available as low as 2,000 RPM.
But it was still a chore to drive at 60 km/h (35 mph) in city/suburban traffic because it always felt and sounded like it was one gear too high. At that speed it would be in 5th gear (of 6) doing around 1,200 RPM, but it felt and sounded a helluva lot better if I used the left paddle to knock it back to 4th gear and bumped the revs to around 1,500.
After doing this consistently it seemed the TCU learned what I was doing and it didn't automatically upshift back to 5th gear after 20 seconds of no paddle use (which is the default setting), instead it stayed in 4th gear. However and of course, if I slowed down a fair bit or stopped such that the box changed down to 3rd or 2nd gear, it would then revert to normal behaviour and I'd have to toggle the left paddle again to avoid the original problem. I can only guess that Jaguar deliberated calibrated the ZF 6HP26 when fitted behind a diesel motor to do this for maximum fuel economy, my 2010 XFR with the exact same gearbox does not do this at all.

 

@OzXFR, @BritCars - Thanks
I will try both suggestions - by the way, mine has the 8 gear box. On one hand I am disappointing of this behaviour but on the other I am happy is nothing wrong and its just by design..... I hope ;-)
I wonder if there is anyway to re-map the gear ratio - just to delay gear change by 50 revs or so.

 

Tried the Sport and found it more to my liking but is holding on to the lower gear a little bit too long - I wish there was a ration between the two.

I guess I will have to learn to ignore it and hope for a mod coming up soon :-(

 

Keep driving it in Sport. If I remember correctly, if you put it in Sport and drive normally (not aggressively), the transmission will adapt and not hold the gear as long. Takes a few minutes to calm down, but it will hold one gear higher without revving so high in each gear. Try it and let us know how it turns out.

 

[QUOTE=Stav;1589704]Tried the Sport and found it more to my liking but is holding on to the lower gear a little bit too long - I wish there was a ration between the two.
QUOTE]

There is. Using Dynamic Mode (checkered Flag icon) gives a number of adjustments, one of which is to slightly raise the shift points (a much smaller raise than with the transmission in S). Since you said you were looking for only a slight raise (50 rpm or so) in the shift points, driving with transmission set to D and with Dynamic Mode engaged may give you what you are looking for.

 

Dynamic mode? I don't think I have such a mode. Is this an option?

 

It's button is depicted with a checkered flag, and when engaged, you will see that same flag on the instrument panel. Not sure if all models have it though.

 

Definitely not having the dynamic mode - I am annoyed with myself now - did not do my homework correctly. I assumed being the Luxury Premium it would be nicely loaded with extras.

I wonder if a Performance chip would make the difference - possibly I should start a new thread for some feedback

 

Don't beat yourself up. That model just might not have dynamic mode.

 

Does your console look anything like this (button color does not matter)?

If it does check closely the buttons to the rear of the gear selector knob. You will find "winter mode," Dynamic Stability Control, ASL (speed limiter) control, and on the bottom left "dynamic mode" marked with a checkered flag.

 

Remember, Stav has the 2.2 litre 4 banger diesel, which unlike all the 6 and 8 cylinder XFs did not come with Dynamic mode as standard.