Noticed this morning my car when pulling away in first seems to not want to change up until about 3500 rpm sometimes, it I put it in manual it changes up straight away and down, there are no noises or clunks and the gearbox is smooth which makes me think this is more likely a software issue?, I've noticed it only seems to do it now I've replaced the intercooler pipe, could it be just the memory of how it was before?, or am I looking at an expensive bill?, if it is the memory how do I reset it?, battery disconnect or something else?.

Are you getting any messages on the dash? Ie, limited performance or HDC not available? To do a reset IIRC, disconnect both battery terminals, and touch them together for 15 seconds, then reconnect. But i can't see this being the problem. By doing that you are erasing the fault code if there is one stored and perhaps making it harder to find the fault. Are you getting any black smoke out of the exhausts? If so, it might be your EGR valves that are at fault, or your EGR cooler. Both common faults.

I'm not getting any fault codes or reduced performance warnings, plus it feels like it's performing well, it's literally only in first where it holds it longer than I think it should, but the gearbox changes up and down normally.
Being a Land Rover I've got to wonder if it was just having a funny 5 minutes I will see if it does it when I go home tonight.
If it's the EGR valve being blocked, which, I suppose it could be as I don't know how long the intercooler pipe was split for before I got the car so the EGR could be clogged up with soot, can I blank the valves off easily enough instead?, it's a 2005 model.

My 2006 2.7 once did this but threw up a HDC fault on the dash after a long run, only did it the once. After switching the ignition off, then back on again, it didn't do it again. Part of the RRS charactristics i guess.

I've noticed mine do it a couple of times, mainly after accelerating then staying at a constant speed. I've found when it happens I have to make sure I've stopped accelerating COMPLETELY then it shifts up. No faults though, and it doesn't happen all the time. I guessed it was an RRS thing.

Check your brake bulbs and consider changing the brake switch (http://www.advancedfactors.co.uk/xkb500030...-738-p.asp - 5 mins to replace).  Visiting from DISCO3.CO.UK
2006 Discovery 3 TDV6 Auto HSE Zambezi Silver

Is the delayed shifting not normal operating procedure for the gearbox until the engine etc. reaches working temperature ?

No, it isn't normal. It should shift gears when required wheather it is warm or cold. What mileage is your vehicle on?

It's on 104k, going in for belt service this week, it doesn't feel clunky or shift badly just seems reluctant to go up to second from first on pull away, but to be fair it only has done it on the way to work this morning, will let you know if it does it in my way home later.

HS66 wrote:

Noticed this morning my car when pulling away in first seems to not want to change up until about 3500 rpm sometimes, it I put it in manual it changes up straight away and down, there are no noises or clunks and the gearbox is smooth which makes me think this is more likely a software issue?, I've noticed it only seems to do it now I've replaced the intercooler pipe, could it be just the memory of how it was before?, or am I looking at an expensive bill?, if it is the memory how do I reset it?, battery disconnect or something else?.

It didn't do it at all on the way home, must have just been having a moment earlier.

Ok this is weird, it did it again this morning at the same junction!!, again when put into manual mode it shifted straight away.
Anyone have any ideas?, I wouldn't have thought egr issues would cause funny shifting, only thing I can think of is its cold this morning maybe the fluid was a bit thick?, but it didn't do it when first leaving my house, only after about 15 minutes, at the same junction.

Brake bulbs + switch can cause similar issues, as can things such as fuel pressure

Get it plugged in and checked for faults first

Thinking about it, could a different battery cause it?, I've had low voltage do similar things before in other cars, what makes me think this is, when I first start sometimes the battery light stays on for a second after, plus in the morning I still have the lights on and the heated seat on too which is more of a voltage drain compared to the afternoon.
It's in for its cambelt service later today anyway so will ask them to plug it in and see what codes come up.