Thank you to those who contributed to helping with this. In the end, it was a software mismatch that the latest 3.00 update sorted. It had most people stumbed.

 

So my 2021 Defender experienced the same vibration.
it did it twice on our latest trip. We figured out what was causing it. On both occasions it did it until we reached 20 MPH. We finally realized that it happened because we had lowered the vehicle for an elderly friend (access height) and we never raised the vehicle back up. It continued until we reached the 20 MPH speed and the vehicle raised itself up and the vibration stopped. Curious if this is what happened in your case.



QUOTE=kiwi.tango;813529]A couple of months ago I purchased a 2021 Land Rover Defender 90 First Edition D250 MHEV, English build. I live in New Zealand. It is a much-admired vehicle in this part of the world. However, it has a fault that the local dealers cannot pinpoint. The LR testing computers show no faults but those same dealers confirm that the noise coming from the front end is not normal.
It is an intermittent vibration and accompanying sound that sounds like a whirring gyro. The vibration is felt on the steering wheel. At first, I thought it was a software issue causing the MHEV generator or electric turbo to operate irregularly out of sync. However, the vehicle is up to date with software.
Any ideas on the source of this noise would be appreciated.
All other functions are working normally.
Factory 22” Black Alloys,
GPS/Sat Nav,
Roof Rails,
Running Boards
Ebony Premium Leather throughout,
Panoramic Canvas Folding Roof,
Full Air Suspension,
Optional front jump seat ( 6 seaters),
Black Pack ( roof and front etc ),
Wheel arch and side Flares,
Spare wheel cover
Media Centre with Navigation,
Mudflaps,
Privacy Glass,
Lane change assist,
Surround Cameras,
Click and Go Coathanger,
Tow Bar with extension for Kuat eBike Rack,
[/QUOTE]

 

In answer to your question, it could be the air pump as over time it has lessoned and now I do not notice it.