Sounds good NJ, keep us updated. Just a thought: does the insurance company have to be told about the upgrade ?

Sent from my XT1032 using Tapatalk

I have told mine which is LV and the premium has gone up but by £27 !!!! I was expecting a hundred or so but no - £27!

Update on my re-map by Celtic Tuning

I've now done some 1k since the remap was carried out and I can honestly say the car is much more of a pleasure to drive. It was nice before but now it's even better.

Acceleration is now much smoother and less effort. Putting your foot down isn't always needed and power delivery is much more linear and very similar to my previous Saab which was so smooth. I thought my Saab TTiD was fast with 180 horses and 400 Nm but in 3rd gear my X Trail feels much quicker. Yes I know the hp is higher but it is a heavier vehicle and 4WD.

I had a good run last Friday - Norwich - Pickering (NW of York) - Harrogate and back to Norwich and tank fill to tank fill it averaged out at 48.2 mpg with around 90% dual or motorway with cruise on at around 75mph. Trip computer shows ave as being 46.3. So I am well pleased. Well worth the money.

How does the mpg compare to before you had it remapped ?

Sent from my XT1032 using Tapatalk

It's not permanent 4WD. It's 2WD during normal driving so has little relevance to mpg apart from extra weight.

It has 0.28A permanent current on the 4wd clutch. Somebody do the math from 1.8A the %.
Touch the gas pedal, and it will raise. Checked with delphi Ds150

And that's going to make a difference to fuel economy?
Touching the gas pedal will raise what?

Toutching the gas pedal will affect your mileage for sure, but I meant that the 4WD controller reads mainly the gas pedal input and engine load %. That means when you are cruising at steady speed and with constant gas pedal pressure/position, when you press the gas pedal a bit, that raisest the pedal input signal and engine load. The 4wd controller then increases the current to the clutch. Depends, how much you press the pedal. If the controller sees that the engine load% is dropping and vehicle speed is steady, then the 4wd clutch current drops back to 0.280A. That is when the knob is in AUTO.

The mpg has improved by about 3 mpg as I'd said.

But the main thing is the improvement in driveability. You certainly get a move on very quickly and get into higher gears that much quicker. The pull in top gear is amazing.

I've settled down now having played with it and several times you knew the rear wheels had some drive in them by how it grips in corners and getting away from standstill.

Generally a massive improvement.

How much did you pay for the mapping, really tempted to get my 2011 173hp X trail done, slightly concerned something huge like the clutch or turbo will fail afterwards, sods law and all.
Did they do all your oils too, or did you do them yourself?