Thread: D3/RRS Pregnant Pause at Roundabouts

I have the same problem in my NZ new '13 SDV6. Dealer knew of no update and said some vehicles had a faulty brake switch which caused similar issues. My Nanocom Evo shows no updates available.

Also found this on the disco3 forum. My VIN is in this range. Would be nice to find out if this is also for Aus/NZ cars? I don't know how different our spec's are ie, no DPF etc.

LTB00545

Issued 14 MAY 2013

Model Year 2012 - 2013

VIN Range CA596988 to DA677290

Customer may complain of a hesitation at a low rolling speed, for example when approaching a traffic island / roundabout

Cause - Software calibration, engine acceleration and downshifts 4-3-2

Automatic Transmission - tune download SRO 44.90.10 Casual part LR041171

Originally Posted by vs2

I have the same problem in my NZ new '13 SDV6. Dealer knew of no update and said some vehicles had a faulty brake switch which caused similar issues. My Nanocom Evo shows no updates available.

May not be keen to do the update; apparently has to be plugged in, and if they have the latest software update for their system, it will automatically update the firmware in the transmission. Might be a several hour operation.

Don't think the Nanocom would show such updates as it's internal LR updates, would it?

From what I can gather it is not an official update and only given on an individual basis.

My car was a demo with 5k on the clock. The hesitation happened only once when I first got the car and the car was cold, but did scare me and my passenger as I was turning right onto a 80 kmh road with a truck coming the other way and I had to put my foot into it half way though the turn as nothing was happening.

Still worries me at intersections and I'll wait for the Nanocom to have the 'adaptive reset' available and maybe try that first but then again maybe I am just getting used to driving this big diesel. My last car was an XFR and a completely different driving experience.

I can tell you now adaptive reset does nothing if you have the real hesitation problem; that's what was tried first as at the time the original update was not yet available in Australia.

Had my car in today for its "Health Check", and had put this issue at the top of the list.

Thought I used all the appropriate words, like "scary" and "dangerous" etc.

They told me that the car "has the latest software" can they couldn't replicate the fault. In their defence, the car did behave itself all the way home tonight, and they have asked for me to drop in tomorrow morning, and take their senior techo for a drive, so he can see the conditions that are causing it.

They did fix a couple of other boring issues, and will have the assessor in tomorrow for the panel damage... but thats another story..

Just had a call from the dealer, and the black beast is ready to go.

Took the senior service tech for a drive this morning, to replicate the issue, and gave him a print of this thread, with the update highlighted.

He wasn't aware of the update, and of course, the car behaved herself with him in it. He even asked if I had owned a Disco before... ummm, yea.. a D2 and it's NOT turbo lag that I am experiencing now...

I even mentioned that I thrashed a 2.7l D4 last week on the way home, and that showed no signs of lag.

But, he did say that when he looked at the car yesterday, he was told that it was an engine issue, and nothing was mentioned about the transmission.

Anyway, they have updated the transmission software to the one mentioned here, and also adjusted the brake light switch, so we will see how it goes.

Interesting to note that on the UK forums, some people have experienced the lag getting worse after the update, so time will tell.

Originally Posted by Basil135

Interesting to note that on the UK forums, some people have experienced the lag getting worse after the update, so time will tell.

I have researched this extensively and one of the reasons I have not gone for a software update is because of its cost and my research has shown it does not work - however there are some who claims it does.

I find that if you do not floor the accelerator the issue rarely shows itself and you accelerate at a reasonable pace. If you floor the accelerator you often get the pregnant pause - in my view it is the gearbox ECU not knowing whether to change down (it should have already done so) or to wait in the gear it is in - it does nothing until the ECU realised the accelerator is paused and the it changes down and is off like a scalded cat.

Some dispute this but my research has shown the issue occurs in all makes of cars (including the Territory) where this engine/gearbox combination is installed. I think is it Landrover, Ford Territory, Jaguar, Citroen and Peugeot.

Garry