2010 (model year2011)TDV8 ,Had suspension fault flashing on dash, passenger side rear air bag dropping over night consequently drivers side front was high up, after levelling it I did plug it in said offside front level sensor, replaced rear airbags now the front has dropped and will not raise, no suspension fault flashing now. I have ordered a replacement sensor just want thoughts if I'm on the right track obviously I'll plug it in again after sensor replacement.
Thanks in advance.

Did you go through the height calibration procedure ? TDV8 4.4 2012

No I haven't as of yet, I'll put the new sensor on then go through it, thanks.

I’d suggest trying to calibrate first. I learned that all sorts of errors occur if the sensors are unevenly adjusted. I recently had an suspension failure whilst driving and went through an arduous replacement of the sensor only to find that it was most likely a calibration issue. If the sensors are out side the ECU calibration range or if there is too much difference between sensors on opposite sides of the car the system throws all sorts of warnings. Mine dropped onto the bump stops.

See here https://www.fullfatrr.com/forum/post648179.html#648179

And here https://www.fullfatrr.com/forum/post648291.html#648291

trying a calibration first costs little effort and may save a sensor replacement task if successful. Keep the adjustment range less than 250 on any one sensor or the ECU throws an error.

If the calibration doesn’t work then change the sensor. TDV8 4.4 2012

Thanks very much for your pointers very much appreciated, finding time to do it now

Managed to get the front end up, no thanks to the iid tool wouldn't connect to my phone again.
took it for a very short drive suspension fault appeared 30mph ect as the front dropped,turned off restarted engine select suspension height required on the dash, saying its in access height when it clearly isn't, air pump is working overtime so called it quits before it gets over heated, I might be in the wind here but im going to change the front level sensor and try that before attempting to try to connect the iid again, frustrating.

What is being shown on the 4x4i screen? are the heights plausible?
Don't worry too much about running the compressor, there is overheat protection built into the control parameters. Sometimes it needs to run for a while to build up the volume & pressure required to lift a couple of tonnes.

thanks for your reply , screens just got range rover and a flashing button at the moment another issue so cant access that first thing i would have looked to be fair just to see, need to get the iid tool to connect.

OK, have you looked at the height sensors all round to make sure they're all in the correct position and not gone 'over centre' during the repair operations? Also that all the plugs are fully latched in place on them? I appreciate it might be difficult with it dragging it's @rrse on the floor like a dog with worms!

Can't help with IID, I don't use one.

im thinking with the rear passenger side sitting arse down and front drivers up in the air i think its gone over, will get on it over the next few days

I did get this sorted in the end early March this year, 2 x new complete front legs, as one burst,was the original legs, another new front level sensor oem this time and a bit of fettling thanks to Martin at Dartford Transmissions.