Disco 2 ACE/PAS reservoir

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Jgwoodley

Jgwoodley

Member
Posts
68
Evening all, even though the reservoir is shared for ACE and PAS are they internally separated.

Makes sense to service both at the same time if they are not separated.

If anyone knows of a step by step guide to undertake this service please would you share your experiences.

I would like to change the filter for ACE- just wondering if this would cause an air gap and cause me further problems with the ACE pump.

Many thanks in advance,

James
 
you need a 10mm allen socket to undo the filter you wont lose much oil and it wont cause any issues the system self bleeds, you screw a 6nn bolt into filter and pull out with pliers etc, you can change pas fluid by fitting a small bore hose on bleed screw on box placing other end in a container, with engine running you top up res till fluid from hose runs clear, ace res can be emptied by removing a hose then refilled
 
If you want to prolonge tha ACE pump's life to maximum make sure that the system is filled with the dedicated STC50519 not with ATF, i dont want a debate on this, in all 4 cases when i've seen failed ACE pumps here in my country ATF was used despite of LR's recommendation to use only the dedicated stuff... if somebody states that ATF is also recommended please attach the page from the EUROPEAN/UK document not the one for NAS
 
sierrafery said:
if somebody states that ATF is also recommended please attach the page from the EUROPEAN/UK document not the one for NAS
Click to expand...

Is it a different vehicle in NAS? If not then perhaps,

If it is to do with ambient temperature then perhaps you would like to look at where the OP resides and ask where he plans on driving it?

Cheers
 
neilly said:
Is it a different vehicle in NAS? If not then perhaps,
Click to expand...
yes, it's different than the one in this post cos they dont have Td5s in NAS :) ... and as we know V8's warm up much faster and work at higher rpms than a Td5, and these things have effect too... so, do you have some european document which recommends ATF for ACE? .... though as i said i dont want a debate, i recommended what's the best for the system's sake the same as LR did in official european documents but feel free to run a saw on this if that makes you feel good
 
sierrafery said:
yes, it's different than the one in this post cos they dont have Td5s in NAS :) ... and as we know V8's warm up much faster and work at higher rpms than a Td5, and these things have effect too... so, do you have some european document which recommends ATF for ACE? .... though as i said i dont want a debate, i recommended what's the best for the system's sake the same as LR did in official european documents but feel free to run a saw on this if that makes you feel good
Click to expand...

Hey SF,
I was only asking a question regarding your post, you are the one stating things and not giving a reason, you could have said what you did in the last post instead in the first , then I would have known your reasons for saying it.

But then I take it that ambient temp does not make a difference.

Cheers
 
sierrafery said:
If you want to prolonge tha ACE pump's life to maximum make sure that the system is filled with the dedicated STC50519 not with ATF, i dont want a debate on this, in all 4 cases when i've seen failed ACE pumps here in my country ATF was used despite of LR's recommendation to use only the dedicated stuff... if somebody states that ATF is also recommended please attach the page from the EUROPEAN/UK document not the one for NAS
Click to expand...
you might want to think about why they had atf in the system,its usually because of a leak,leaks cause pump failure often over time, its not a recommendation for using any oil but id think many hydraulic suitable oils would perform perfectly
 
neilly said:
But then I take it that ambient temp does not make a difference.
Click to expand...
The ambient temp makes a difference too but i was sure you know what's in the NAS RAVE and that's why you are asking cos this subject was already covered few times and as i know how the subject is approached i didnt want to repeat things

to simplify, from my point of view as living in Europe ATF is NOT a recommended alternative whatsoever

also i said about prolonging the pump's life not that it will certainly die on ATF
 
sierrafery said:
The ambient temp makes a difference too
Click to expand...

OK, now NAS AFAIK covers the whole of NA, where the ambient temperature covers a whole lot, I have seen 40C to -20C and by jove I have never been to the hottest or the coldest. Now the OP lives in Cyprus, whcih again AFAIK does not get a great delta in temps compared to the rest of europe.

So looking at this in the practical world, why should the OP NOT have ATF in his ACE system?

Cheers
 
neilly said:
So looking at this in the practical world, why should the OP NOT have ATF in his ACE system?
Click to expand...
as i said, simply cos it's not recommended by any document which covers Cyprus or Td5s too so for me ATF is not even an option :cool:, i meant that the best is to use the recommended stuff, which is STC50519 nothing else ....i rest my case on this
 
To quote that famous Star Trek line spoken by both "Scotty" and "Lt.Cdr. Data", "It is green!"

I remember reading somewhere, can't remember where that using ATF in the PAS could cause damage to the seals in the pump and/or box, probably by softening them too much. I use the listed stuff, OK it ain't cheap, but better safe than sorry.
 
Last edited:
brian47 said:
To quote that famous Star Trek line spoken by both "Scotty" and "Lt.Cdr. Data", "It is green!"

I remember reading somewhere, can't remember where that using ATF in the PAS could cause damage to the seals in the pump and/or box, probably by softening them too much. I use the listed stuff, OK it ain't cheap, but better safe than sorry.
Click to expand...
Hi Brian, many thanks for your reply. I have also seen this somewhere; using ATF damages the inside of the hoses causing both collapse of the hose and blockage to the reservoir filter/ membrane.

I will definitely be using the recommended stuff - although not checked the price difference yet. Probably require quite a bit to do both ACE and PAS though...
 
neilly said:
OK, now NAS AFAIK covers the whole of NA, where the ambient temperature covers a whole lot, I have seen 40C to -20C and by jove I have never been to the hottest or the coldest. Now the OP lives in Cyprus, whcih again AFAIK does not get a great delta in temps compared to the rest of europe.

So looking at this in the practical world, why should the OP NOT have ATF in his ACE system?

Cheers
Click to expand...
Gone to buy the genuine fluid and see that it is listed as cold climate fluid. Only just twigged what your saying here... not wishing to stir the pot but is there alternative Land Rover hot climate fluid that you know of?
 
Alternative is Ravenol SSF, 4l is enough for both ACE and PAS with some spare left for top up if needed, that's not the area to save max 10 quid by buying some fake thing and in the ACE is fill and forget for at least 100K miles
 
Last edited:
brian47 said:
To quote that famous Star Trek line spoken by both "Scotty" and "Lt.Cdr. Data", "It is green!"

I remember reading somewhere, can't remember where that using ATF in the PAS could cause damage to the seals in the pump and/or box, probably by softening them too much. I use the listed stuff, OK it ain't cheap, but better safe than sorry.
Click to expand...
the pas pump on a td5 is the same type as on the 300 tdi ,if anything ccf is improved for longer oil life to reduce servicing
 
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