D3 lowering while sitting in shed

[ctgiles84]

We only use our D3 twice a week. When we park it, it is in say normal height but when we come back to it the next day it has gone down. If left for more than a day it can go down to bump stops. It goes down all level. The guy i bought it off said he replaced the air bags. What is a posible cause? Thought i should start with checking connections on air bags.

[discotwinturbo]

The car does check and make adjustments to the suspension.....but from my experience does not go down that much and that quickly.

Sounds like a leak to me.

Others will confirm.

Brett.....

[~Rich~]

Yep sounds like a Valve block is leaking.
Disconnect you battery and see which corner / end goes down overnight.
Take measurements on each corner and note the next day the difference.
At least you will no where approx the problem is.

[ctgiles84]

Thanks guys. Will do.

[lpj]

The car periodically checks itself to see if level. If one corner drops a little, all the others will drop accordingly. The process repeats until its all the way down.

[SBD4]

Follow what this guy says to diagnose where the leak might be:

https://www.youtube.com/watch?v=o55KBzsxSBA&feature=c4-overview&list=UUWHaoEnaTm4c6g6raTn-5dg

He has some other quite good "how to" vids as well.

[jonesy63]

Follow what this guy says to diagnose where the leak might be:

https://www.youtube.com/watch?v=o55KBzsxSBA&feature=c4-overview&list=UUWHaoEnaTm4c6g6raTn-5dg

He has some other quite good "how to" vids as well.

Interesting - he uses "Arnott Industries" replacement air strut assemblies... https://www.arnottindustries.com/part_LAND_ROVER_yid4_pid175.html

Come with a lifetime warranty. It says co-developed by Bilstein in USA - I wonder if that is the different to the one imported to Australia (giving problems)?

[SBD4]

Interesting - he uses "Arnott Industries" replacement air strut assemblies... https://www.arnottindustries.com/part_LAND_ROVER_yid4_pid175.html

Come with a lifetime warranty. It says co-developed by Bilstein in USA - I wonder if that is the different to the one imported to Australia (giving problems)?

yes I wondered the same thing. I checked their website and noted that they only specified for D3. I have no doubt they are fine for the D4 but had in the back of my mind the observations Graeme had mad on the differences between D3 and D4 suspension. I was intending to do more research on it in anticipation of replacing mine in the near future.

[Geedublya]

This is it Arnott Front AIR Strut AS 2570 Land Rover Discovery 3 Range Rover Sport | eBay (http://www.ebay.com.au/itm/300918213938'ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649)

[ctgiles84]

Update on the air leak. I pulled the fuse as the youtube video said. The car seems like it is going down all together. Can anyone suggest what the problem may be? I am not completely aware of how the system works. Is it possible that both front and rear valve blocks have junk in them?

[Graeme]

Which fuse did you remove? It needs to be the engine bay 20A air suspension fuse, noting that there is also a 5A fuse that is only for the 'compressor relay closed' detection signal. Disconnecting the battery is another option.

[ctgiles84]

I removed the one old matey on the video said to remove but it may seem i have removed the wrong one. Thanks for thought.

[Graeme]

There's a legend under the lid but the symbols can be a bit trying to decipher.

[ctgiles84]

New valve block arrived. Just have to install and will see how we go. Bought front & rear from UK and got them cheaper than i caould get one in AU.

[ctgiles84]

I finally installed the new valve block in the front. so far looks like problem solved. Car has sat for a day and has not gone down which before was happening. Thanks all for advice.