Thread: Converting Disco rear to airbags

I've calculated about $1200-1400 if you buy everything as OEM or genuine where there is no OEM part available. The wabco compressor unit accounts for $5-600 of that. Contitech bags $3-400 a pair. Hose harness, exhaust filter and height sensors make up the balance.

Originally Posted by OffTrack

I've calculated about $1200-1400 if you buy everything as OEM or genuine where there is no OEM part available.

Not that expensive at all considering it would mean that you have a complete brand new system so are unlikely to have any air bag or compressor failures for a good 10 years...

Offtrack you might have posted this up previously but can you post up your findings for part numbers and sources.

Cheers

I've attached a list of parts needed to do the bulk of the SLS system.

What is missing from the list is the wiring harness, and I think possibly a fusible link.

The pricing is taken from brit-car.co.uk, you'd have to add shipping obviously.

cheers
Paul

I am not familiar with the details of the logic used in the D2a SLS but I think that the changes in air volume occur slowly in order to ensure the control system does not go unstable and have the system venting and pumping endlessly. My system occasionally adjusts and only to accommodate an increased static (not dynamic) load. I therefore believe that the manual system will work fine.

Hi Walker,

I assume you have done the install by now, is it going well?

I am looking to do something similar but as yet undecided whether to convert to SLS or just use manual bags. I would be interested to find out how well it has worked for you.

Cheers,
Nova

Hi Nova,
I installed them last weekend. So far they are great. Much nicer ride, just the right firmness. The suspension is articulating as it should. I only have airbags hooked up to shrader valves at the moment, just so I can use it this weekend. I just use my little compressor to pump them up. In the coming weeks I will hook the bags up to a dedicated compressor with a gauge and control buttons on the dash.

I have only used them on road so far, but am going away camping this weekend so that will be the real test.

But I would totally recommend it. I also like the idea of manual control and not using Landrover control gear.

On my last D2 I had SLS and while the airbags were fine, the compressor failed twice and valve block failed once.

On only just saw this thread. I have had manually controlled air springs on the rear of my 110 for almost 2 years now.

I only need to adjust them after large changes in load or large changes in ambient temperature.

I posted up a thread with pics back in 2010 if anyone wants to search.