So starting to think it's 100% suspension related. The power drop is the first noticeable symptom if I don't have 4x4 display up however passenger side front wheel does start to act up sitting around 20mm lower than it should.

When all the lights flag up and I restart car it asks me to select ride height. The suspension then levels put and I'm good for a few more days until it happens again. So appears when the suspension falls out of calibration it throws off all these lights and errors.

My drive looks pretty flat yo yhe eye but when I measure centre cap to wheel arch is get yhe following, which tells me its either out if whack or my drive is not flat at all.

Driver rear 495
Passenger rear 477

Driver front 477
Passenger front 457

Struggling to find a flat surface to do a calibration. Even cat parks aren't flat around here.
 
So starting to think it's 100% suspension related. The power drop is the first noticeable symptom if I don't have 4x4 display up however passenger side front wheel does start to act up sitting around 20mm lower than it should.

When all the lights flag up and I restart car it asks me to select ride height. The suspension then levels put and I'm good for a few more days until it happens again. So appears when the suspension falls out of calibration it throws off all these lights and errors.

My drive looks pretty flat yo yhe eye but when I measure centre cap to wheel arch is get yhe following, which tells me its either out if whack or my drive is not flat at all.

Driver rear 495
Passenger rear 477

Driver front 477
Passenger front 457

Struggling to find a flat surface to do a calibration. Even cat parks aren't flat around here.
The passenger front dropping will cause the driver rear to rise due to weight transfer, the opposite could also be true.
 
Put it in tight tolerance then remeasure, mark where the wheels are on your drive, turn the vehicle 180 degrees, onto exactly the same marks & remeasure, if your calibration surface is markedly out, you'll see the difference straight away.
 

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