Hi
2010 3.6 TDV8 with 6 Speed box, 75k miles

I am gong to change the gearbox oil (not mega flush, I know all the arguments but it's not an option at the moment)

Two questions:

Do I reset the gearbox (I Have a Gap Tool)? I see a lot of conflicting comments on this

The Gap tool live value for gearbox temp is N/A, this would suggest it's not available as I would have thought a fault (broken wire etc) would have given a zero or funny value. What are other peoples experience with this?

Thanks in advance! 2010 3.6 TDV8

No. Disco Mikey runs MMP in Dundee who are one of the best indies
https://www.rrsport.co.uk/forum/topic57365-30.html Gone to a good home: 2011 4.4 TDV8 Vogue SE Buckingham Blue with Ivory and clear glass = "Rory"
2025MY Defender D350 90 in Silicon Silver on coils
1974 Series 3 Lightweight = "Millie"
Many, many other Landies over the years
My preferred specialist: www.glenrands.co.uk
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No need to reset, I have done many of these on both full fat and RR sports, all engine sizes, 5,6 and 8 speed and have never had to do a reset

Exactly the same question was asked on the RRS forum the other day. Here's a copy and paste of my post...

I think some do and some don't. Personally, I never have. My reasoning behind this is that sometimes, after resetting the gearbox adaptations, the gear changes can be a little harsh and it can hold onto the gears a little longer than usual, whilst the gearbox is learning the optimum adaptation values.

As the gearbox is always constantly learning and adapting to the driving style and also adapting to the degradation or indeed, improvement, in fluid quality, the end result would be the same. Not resetting the adaptation values however, would avoid any harshness in the gear changes whilst the gearbox is optimising itself.

Edit: just noticed Rob has already linked to the same post above. Oops.  Kev

2014 L405 RR Vogue SE 4.4 SDV8 in Corris Grey
2010 L320 RRS HSE 3.0 TDV6 in Stornoway Grey

I had always understood it to be a no. However a specialist did it to mine without asking recently after a service - doesn’t seem to have had any negative effects. Car is on 150k, gearbox is on about 7k 1995 4.6 v8, green/tan (long gone)
2005 4.8iS X5, blue/black
2011 4.4 tdv8, black/black (gone)
2003 3.0d X5, Oxford green/black/manual
2021 p575 SVR, BR green/vintage tan