Thread: Suspension Fault Normal Height Only

Paddocks
Compressor £285.00
postage £50.00
Total £335.00 (~$517 aus dollars)

Paddocks did put a caveat on postage and said it was approx and would be calculated once fully wrapped and weighed. Postage would take between 2 - 5 days.

Got same figures as above, total 335GBP. Have ordered one and waiting now. Spoke to Knight's House of Rover here in Brisbane and they guys said it's 1hr labour to install and that there's a new software that will change the way the air compressor operates so that it doesn't have to work as hard as before and thus prolonging the its life. Anyone heard of this?

Yes there is a software update that is applied with the fitment of the new compressor. Your compressor will still work without this however

Also, the reduced operating pressure software update is applicable to all LRs with terrain-response, from the earliest D3 to the current RR Vogue with their own software version.

Further to my earlier post below. My compressor was recently replaced under warranty - at about 60,000 klms. It had got really slow in pumping up or down, kept overheating and often gave a warning message (I've forgotton what it was - something about normal height only).
The LR service guy said they seem to be replacing compressors after about 4 years, although mine was only 2 years old.
So, it seems like if your compressor hasn't failed, its just a matter of time.
thanks to unseenone and garrycol for posting those notes - next time I do it won't be under warranty.

Originally Posted by Graeme

Also, the reduced operating pressure software update is applicable to all LR's with terrain-response, from the earliest D3 to the current RR Vogue with their own software version.

Is this update something new, say in the last year or so? I know there was something compressor related back maybe in 2007 or so.

The comment about reduced operating pressure intrigues me. I have always felt that no one, not even the Japanese, have yet to invent a single stage air compressor that can routinely run at +200 psig, (14 bar), for any length of time.

If Land Rover had just spent the money to install a second air tank on the other side and run the compressor at about 150 psig, (10 bar), other than initial problems with the wiring, the 3's air system would have been near faultless. That, and with your system so we have manual control over the computers re height.

LTB00270 was released in Feb 2010 to lower the maximum pressure in the reservoir. It was released in conjunction with LTB00269 then LTB00269V2 for compressor updates but applies to all Terrain-Response variants.

I may fit a 2nd reservoir on the RHS. It might need some mounting bracket modifications but it appears to be a quite simple job. Its valve may need to be operated from a relay if the suspension ecu doesn't like the load of a 2nd solenoid.

Edit: If I think of it, the next time I have the Faultmate connected I'll see what the pressure gets to just prior to the compressor stopping.

Edit2: No 2nd valve needed for a 2nd tank because the valve is remote from the tank, so only a T-fitting and suitable airline.

Below is a link to disco3 where wiggs installed a second air tank. The problem is the brackets but he solves that as shown on the various jpg's within the link.

Any yes, all you have to do is T across to the second tank. It there is any trick, it is to keep the air line from melting while crossing the exhaust system.

Yes, that would be nice to know what the pressure in your air tank peaks out at. On my single LR3 tank, the tank pressure seems to peak at about 210 psig, (14.1 bar). That is where the compressor seems to shut off at and I have a fitting on the end of my air tank that I can measure off of - installed with the help of CaverD3. I also think CaverD3 may have or had a second air tank installed as well.

I know that a bunch of updates were done a few years back. I also had a new compressor installed by the dealer in June of 2010 so it may be the update was also included with the new install. It seems they never like to admit to the updates as they are never certain if they actually take hold.

DISCO3.CO.UK - View topic - LR Airtank fitted for compressor install .

This link is re the outlet I have on the front end of the air tank.

DISCO3.CO.UK Photo Gallery - Schrader Valve Air Tank Air In install

My D4 goes from extra low (sometimes from bump-stop low) to normal height at least once a week in a car park and it would be good to get there quickly to soften the impact of the speed-humps. It would also be good for those off-road instances of wanting to get high or extra high as quickly as possible.