Air strut dates?

[jhsnow]

It was my understanding that you could read the manufacturing date from the sticker on the strut. The unit in question is marked Land Rover BWI so I think it is genuine?
The vehicle is a 2/11 D4. Any thoughts?
154549154550
They are front struts. One shows a valid date and time the other shows crap.
The car has a small overnight drop at front. If it is the odd strut what are your thoughts on replacing just one unit.
Rear struts have 2016 dates.
Thanks

[hpal]

If they’re only 3 years old it probably isn’t the strut. They potentially could last 200,000km, mine did anyway. Most likely a leak in the front valve block. Check the bag anyway, inflate to off road height and spray soapy water around the bag.

[loanrangie]

If it drops evenly then its the valve block.

[Disco-tastic]

If it drops evenly then its the valve block.Only if you disconnect the self levelling fuse otherwise the car will drop evenly.