Discovery 4 front shocks

[Disclarkery4]

Hi guys, while I'm driving from around 60kmh up my front end goes down to close to access hieght I'd say and back up again. Sometimes it will stay down for a minute before coming back up 🤦
Thanks

[Disclarkery4]

It usually doesn't do it til about 90kmh

[Eric SDV6SE]

It shouldn't be doing it at all. At 140kmh it lowers to halfway between normal and access to improve balance at speed, but the for the rest it should stay at normal height unless selected by you in the cabin. Access height only permitted up to 20kmh, then the system raises the car to normal height. Off road height only available below 40kph as standard.

You have a leak in one or both of the air lines causing the front to drop. Have a search on here around how to check the lines and service the valve blocks. You compressor is working overtime to keep the system going, you will burn out the compressor if left untreated. A service kit for the valve blocks and compressor is available form places like island 4x4 and others.

[PerthDisco]

When parked next over a few days remove the EAS fuse in engine bay (3rd from bottom) and let it sit for 24 hours and any leak will become obvious. When driving the system will constantly fill a leak leading to faster wearing out of the pump so you have to work out what’s leaking first which is the frustrating part.

If one corner goes down leaking bag in my case the front slumped evenly over 48 hours so I’m focused on the front valve.

I started at raised height which allows the bags to leak faster.

https://uploads.tapatalk-cdn.com/20240928/9a3d528d79a505893ba3db2165263ee5.jpg

https://uploads.tapatalk-cdn.com/20240928/4f175ee82a35b8e794501d0d3d747bb5.jpg

[Disclarkery4]

Thanks guys

[Disclarkery4]

I think it'll be the valve block at tje front, I've changed the front strutts as they were leaking and now the left one is going down to tje blocks and the right one is almost to tje block