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View Full Version : D2 SLS Valve Blocks???



pohm66
2nd January 2008, 04:37 PM
Hi, 4x4intelligence.com.au have for sale SLS valve blocks that are replacement blocks allowing manual inflation. :unsure:

Does anyone know about these and have any feedback :confused: as I have an the airbag rearend and this would give me manual leveling when towing etc.

Cheers....

Piddler
3rd January 2008, 08:13 AM
Hi, 4x4intelligence.com.au have for sale SLS valve blocks that are replacement blocks allowing manual inflation. :unsure:

Does anyone know about these and have any feedback :confused: as I have an the airbag rearend and this would give me manual leveling when towing etc.

Cheers....


I have one and keep it in the glove box, it is for emergency's if you rip air lines off or your compressor dies.

You are not meant to over inflate your bags. Your SLS rear end should be self levelling for towing etc.

Cheers
Piddler

pohm66
3rd January 2008, 04:36 PM
Thanks for the info Piddler....I'm new to the D2 air suspension thang and thought that the SLS came with a remote to activate the leveling which isn't part of setup. The bags just raise the 40mm for low speed work.

If this is right can this be used to do the leveling???

Piddler
7th January 2008, 06:30 AM
Hi,
you can use a remote but the SLS self height adjusts according to load on it there are sensors on the arms on the rear.

Cheers

nzoliver
21st November 2008, 05:18 AM
Hi from NZ!
Anyone have a picture of these or details of how they work? I wonder if it is possible to leave on permanently attached somehow?

Thank you

Oliver

Pedro_The_Swift
23rd November 2008, 10:57 AM
I think the remote was an option,,
The rear will raise only if bottomed out,(anybody had this actually happen?) or by dash button.
and then only in low range at very slow speeds.

chuck
23rd November 2008, 10:46 PM
The air bags adjust themselves according to weight & load.
If I take out weight from the rear of the car you can hear the bags deflating to pre load pressures.

Yes you can buy a remote to adjust the height of your rear end - it was designed so that you could lower the car to match trailer heights or lower the car to make it easier to unload.

I have used it to make it easier for the elderly to get in the car (mine has a
2" lift & 32" tyres).

The remote works when all doors are shut & with the engine running - there is a significant amount of travel.

It was an option to purchase & if you do buy one it has to be programmed to the car.

I was lucky enough to get one at the right price a while ago.

Regards

Chuck

Weekender
29th November 2008, 09:58 PM
SLS seems a very popular topic.

So with an occasional deflating RHS bag, I was told the compressor values was the fault, and that would require a new compressor.

New comprerssor fitted, OK at the workshop, 5km later and parked, RHS down again, back home 5km, both sides down.

Sometimes they stay up. But it is just about always the RHS. This was exactly the same issue prior to the new compressor. (What is the cylinder part approx 100mm in dia and 100mm long that is connected just behind the compressor box.?)

Interesting, if the SLS is "ëxtened" by the button, they both stay up, so I suspect the bags are OK.

But as noted in this forum thread, air gets released as you unload. I can hear air escaping as the SLS sinks when parked in normal mode, so where is the "part" that releases this air, perhaps it is faulty, or is that part comtrolled by the ECU that is been said to be behind the glove box.

Any ideas

justinc
29th November 2008, 10:05 PM
Not commonly the compressor/ valves. It will more than likely have a bag leaking, a good way to test is to spray soapy water over them, then get someone to push down on the back of the vehicle one side at a time and look closely for leaks as the bag folds under when compressed. I had one where it would stay fully inflated for days until the vehicle parked on a slight slope, then you could watch the RH side slowly sinking accompanied by the hiss of escaping air:o

JC

Pedro_The_Swift
30th November 2008, 06:30 AM
SLS is a consumable item that has reached its use by date.
Ten years is not bad.

all these things tend to happen together,,
TD5 oil pick up bolts,
oil in harnesess,

usually afterwoods you never hear of them again.

The simple way to pick where the air is escaping is to disconnect the bags from the compressor, fit tyre type valves, pump up and drive away,,

Turned out my bags were fine, it was leaking back through the block.

And now we've had our first compresser REPAIR,, the fix should be (relatively) painless.

Weekender
30th November 2008, 07:21 PM
Thanks for comments

Sprayed soapy water on the bags - it leaks while trying to be on normal, meaning the RHS leaked while it quickly deflated, ut stay up when extended.

looks like new bags.......

Basil135
2nd December 2008, 12:16 PM
The air bags adjust themselves according to weight & load.
If I take out weight from the rear of the car you can hear the bags deflating to pre load pressures.

Yes you can buy a remote to adjust the height of your rear end - it was designed so that you could lower the car to match trailer heights or lower the car to make it easier to unload.

I have used it to make it easier for the elderly to get in the car (mine has a
2" lift & 32" tyres).

The remote works when all doors are shut & with the engine running - there is a significant amount of travel.

It was an option to purchase & if you do buy one it has to be programmed to the car.

I was lucky enough to get one at the right price a while ago.

Regards

Chuck

I have considered purchasing a remote to enable the lowering of the car, but at $300 odd for the remote, and another $50 - $100 to program it, it just doesn't seem worth it.

Now, if I can find a way to get a signal to the SLABS ECU the same as the lowering signal, I would be one happy camper.

I think I understand how the remote side works, but am unsure of what this signal actually consists of. Is it +12v, +5v, -12v, -5v, or is it a data stream?

If I can get this little bit of info, I can fashion up a remote & receiver that will work like the factory one, at a lower price. The factory remote utilizes the receiver for the normal arm / disarm & lock / unlock from the key fob. My intention is to connect a new & separate receiver direct to the SLABS ECU.:D

On the other hand, if I can get hold of a spare ECU, I may be able to work it out for myself....;)

Rosscoe68
2nd December 2008, 02:29 PM
the nanocom has a feature that lets you manually raise and drop each side as a test to enusre the system is working, my guess is it would be a simple job for some wiz to tap into the nanocom and make a feature to raise and lower the sus as required. comeone someone with a clue :)