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Home > Technical > Take off from standing start Diesel Lag |
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Stuartc Member Since: 01 Dec 2014 Location: Perth, Australia Posts: 2292 |
Personaly I would be very hesitant engaging a "special program" from the terrain response on anything other than slippery/challenging traction conditions. It clearly states in the owners manual to do so "could reduce the life of the suspension and drive systems" end quote.
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20th Apr 2015 12:00 pm |
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CJB Member Since: 16 Feb 2015 Location: Folkestone. uk Posts: 104 |
Hey guys.. thats brilliant info.. thanks very much.
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20th Apr 2015 12:02 pm |
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Stuartc Member Since: 01 Dec 2014 Location: Perth, Australia Posts: 2292 |
Also be aware that steering, anti-lock brakes, Gradient Release Control System, Hill Descent Control and Dynamic Stability Control are all affected by selection of a "special program" so by doing so on normal driving conditions may not be ideal or preferable. |
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20th Apr 2015 12:32 pm |
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dorsetfreelander Member Since: 20 Jul 2013 Location: Dorset Posts: 4354 |
Is the car a 2011 model by chance? these early facelift TD4s are the ones with the dreaded hesitation problem which is well documented elsewhere on the forum. My dealer said he has three with the problem and LR are not sure how to fix it. . Also be aware that the FL2 has a very low first gear to make up for the lack of low range box, it was the same with the FL1 manual that I had. 3 x FL1 2 manual + 1 auto
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20th Apr 2015 3:01 pm |
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CJB Member Since: 16 Feb 2015 Location: Folkestone. uk Posts: 104 |
I've just been out for a short drive around town over a variety of inclines, in Normal mode. Then adjusted to SAND mode.. an immediate and noticeable increase in acceleration thru the gears and whilst not totally reducing the Lag, it certainly made it feel more responsive. I need to do more comparison but many thanks to those suggesting the use of Sand mode. Makes me think the Engine Management needs remapping for Normal mode as others have done by various independent means. I take on board the danger of staying in anything other than Normal, but as I do relatively small annual mileage I wonder if that matters so much. Any other thoughts welcome |
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20th Apr 2015 3:06 pm |
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CJB Member Since: 16 Feb 2015 Location: Folkestone. uk Posts: 104 |
It is indeed the facelift .. so maybe it is the mapping ? |
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20th Apr 2015 3:08 pm |
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dorsetfreelander Member Since: 20 Jul 2013 Location: Dorset Posts: 4354 |
Have a look at this for a start
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20th Apr 2015 4:55 pm |
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CJB Member Since: 16 Feb 2015 Location: Folkestone. uk Posts: 104 |
Thanks for that link. I don't get judder unless the revs totally die and mine is a manual.
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20th Apr 2015 5:08 pm |
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Offshore1987 Member Since: 11 May 2014 Location: Hampshire Posts: 496 |
I thought it was a safety feature from LR as its been said on here before, it delays the response to the throttle from stand still
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21st Apr 2015 5:27 pm |
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CJB Member Since: 16 Feb 2015 Location: Folkestone. uk Posts: 104 |
REALLY ???
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21st Apr 2015 5:58 pm |
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dorsetfreelander Member Since: 20 Jul 2013 Location: Dorset Posts: 4354 |
We have had three pre facelift and one post with the reduced emissions engine. This latter engine certainly behaves differently to the other two and is noticeably more powerful and has more torque. However, we did have a problem with this car in the early days and on occasions it suffered badly from hesitation at road junctions. It went back to the dealers a couple of times and they updated software and "recalibrated the air flow system". At the same time it had a service and fuel filter change. Since then everything has been OK. I would be wary of remapping until the basic car is sorted otherwise you will never be sure of what what is going on.
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21st Apr 2015 6:27 pm |
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CJB Member Since: 16 Feb 2015 Location: Folkestone. uk Posts: 104 |
Thanks.. and interesting feedback. From what you say in at least one example, retuning or remapping cured the problem , plus persuading the owner to have a full service at the same time... at what £400+ ?
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21st Apr 2015 7:03 pm |
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Chuckalicious Member Since: 23 May 2014 Location: Midlothian Posts: 1796 |
I experienced this for the first time today pulling onto a roundabout. Foot to the floor and the car hardly responded, then exploded into life as the turbo kicked it. Very scary. Mine is an early facelift. FL2 TD4 GS 60 reg Facelift - so many issues
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11th Jun 2015 7:22 pm |
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CJB Member Since: 16 Feb 2015 Location: Folkestone. uk Posts: 104 |
It is very scary if you don't expect it.
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11th Jun 2015 8:13 pm |
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