DISCO3.CO.UK - View topic - Torque convertor / gearbox problems need rebuild advice req

PaulP

Member Since: 04 May 2007
Location: Barcelona
Posts: 4317

2006 Discovery 3 TDV6 SE Auto Buckingham Blue

Good news Caver

But if the actual cause of the fault was the radiator leaking water in the ATF, then it is clear that the fault will return again

2006 Discovery 3 TDV6 SE Auto Buckingham Blue
2007 Golf GT DSG

1st Nov 2010 8:40 pm

Bodsy
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Member Since: 06 Nov 2006
Location: In the Clubhouse
Posts: 21361

2007 Discovery 3 TDV6 HSE Auto Java Black

probably when outside of warranty of course.....

If Water is leaking, then I can't think that it would take too long to show up in a test.... Bodsys Brake Bible

D4/D3 Remote FBH heat kits
BAS Remaps/ EGR Blank
Transmission Flush
Software updates/enabling

Clock/ SNOTM /3Flash / 4x4Info /BT Update /Service Reset/Error Codes / Gearbox Reset
See It Here

1st Nov 2010 8:41 pm

NickJ

Member Since: 11 Oct 2010
Location: there's no f in point
Posts: 2137

2006 Discovery 3 TDV6 S Auto Zambezi Silver

amondeggs wrote:
I now have seperate atf cooler fitted will post photo of it asap.

Did you have someone to fit this for you? It looks like the Kenlowe oil cooler the same as I fitted to my previous car as the ATF fluid was overheating when pulling a caravan up hills. Kenlowe were really good and the kit wasn't that expensive. Do you know how easy it was to plumb the hoses in to existing? I'd probably think of doing this again to the D3 if it saved the ATF from being contaminated with water.

What sort of mileage are we talking about that this usually occurs at?

1st Nov 2010 8:43 pm

Tawny Owl

Member Since: 22 Oct 2008
Location: Here and there
Posts: 1645

2005 Discovery 3 TDV6 Base 7 Seat Auto Java Black

Mine was on 98k when first had judder

1st Nov 2010 8:50 pm

caverD3

Member Since: 03 Jul 2006
Location: Oberon, NSW
Posts: 6922

2012 Discovery 4 3.0 SDV6 SE Auto Fuji White

PaulP wrote:
Good news Caver

But if the actual cause of the fault was the radiator leaking water in the ATF, then it is clear that the fault will return again

I'll take some out and test it before the extended warranty is out. â€œThere are only three sports: bullfighting, motor racing, and mountaineering; all the rest are merely gamesâ€
Ernest Hemmingway
D4 3.0 Active Diff, Adaptive Lights, High Beam Assist, Surround Cameras, Privacy Glass.
D3 2.7:Adaptive Headlights,Electronic Rear Diff,ARB Bar,Blaupunkt Speakers,JVC Powered Subwoofer,Removable Snorkel,Mitch Hitch,Pioneer After Market Head Unit,Steering Wheel Control Adaptor,Remote Adjustable Supension Rod System, Taxside Dual Battery System.

1st Nov 2010 8:56 pm

Tawny Owl

Member Since: 22 Oct 2008
Location: Here and there
Posts: 1645

Just been looking at the Kenlowe RX1572 oil cooler kit , seems a good price for what you get

Think I might try this kit and then get the mega-flush done and see how long it lasts , as long as no more glycol goes back into the box then maybe , just maybe I may get away with it

1st Nov 2010 9:41 pm

amondeggs

Member Since: 03 Sep 2009
Location: Telford
Posts: 155

2005 Discovery 3 TDV6 HSE Auto Zambezi Silver

Quote:
Did you have someone to fit this for you? It looks like the Kenlowe oil cooler the same as I fitted to my previous car as the ATF fluid was overheating when pulling a caravan up hills. Kenlowe were really good and the kit wasn't that expensive. Do you know how easy it was to plumb the hoses in to existing? I'd probably think of doing this again to the D3 if it saved the ATF from being contaminated with water

Hi no as explained got severve juddering tried usual flush and mega flush with little success. Reverted to ZF specialist for new torque convertor, and transmission rebuild and they fitted the seperate atf cooler a it was water contamination from the original radiator that caused the damage in the first place.

1st Nov 2010 11:30 pm

PaulP

Member Since: 04 May 2007
Location: Barcelona
Posts: 4317

Hi,

Just saw that you posted in another thread and it reminded me to come back here and ask how you've been getting on since the 'box rebuild and new oil cooler?

Is it still working perfectly? Are you now outside the length of time that it appeared fixed the last time you did the double/mega flush?

What I mean is, can you now 100% confirm that the problem has gone away and the only possible solution (in your case) was a gearbox rebuild caused by a faulty radiator?

Cheers,

Paul 2006 Discovery 3 TDV6 SE Auto Buckingham Blue
2007 Golf GT DSG

7th Dec 2010 11:03 pm

amondeggs

Member Since: 03 Sep 2009
Location: Telford
Posts: 155

HI Paul, thanks for your interest !

I am really pleased with the car the gearbox really is great now. It is better than I have know it in the past. To answer your questions,

The first time I had a double flush the car lost all the juddering symptoms for nearly a year. So no I am not outside the time that the original double flush sorted the problem. But I did have a second double flush with 4 tech and this did not last more than a week before the shuddering came back !

I do 100% believe that the water contamination from the radiator cause the damage to the transmission and hence the juddering. That is why now I have the separate atf cooler fitted so that this hopefully will not happen again.

Hope this helps

8th Dec 2010 12:43 am

PaulP

Member Since: 04 May 2007
Location: Barcelona
Posts: 4317

It does...thanks

I'm still suffering from torque convertor slip on my auto-box, however I don't have, or have ever had, any form of juddering.

On both occasions that I've had a double flush, it has temporarily fixed the problem for a few weeks before the slipping returned, so it's clear that something is contaminating the ATF within a short space of time.

The reason for bumping this thread is also because I have mine booked in to have a new radiator fitted next Tuesday and that will also be done with a coolant and ATF change......I'll run it for a week and then change the ATF a second time.

It's just far easier and 2 grand cheaper to try this method first before going to whole hog and getting the auto-box refurbished and the torque convertor replaced.

If it works, then I'll seriously consider getting an external ATF cooler put in over the next 12 months or so.....I just hope there hasn't been any lasting damage to the torque convertor

Cheers,

Paul 2006 Discovery 3 TDV6 SE Auto Buckingham Blue
2007 Golf GT DSG

8th Dec 2010 12:50 am

caverD3

Member Since: 03 Jul 2006
Location: Oberon, NSW
Posts: 6922

It is quite cheap to have to ATF checked for glycol contamination. It may be an idea to do this before replacing the radiator.

â€œThere are only three sports: bullfighting, motor racing, and mountaineering; all the rest are merely gamesâ€
Ernest Hemmingway
D4 3.0 Active Diff, Adaptive Lights, High Beam Assist, Surround Cameras, Privacy Glass.
D3 2.7:Adaptive Headlights,Electronic Rear Diff,ARB Bar,Blaupunkt Speakers,JVC Powered Subwoofer,Removable Snorkel,Mitch Hitch,Pioneer After Market Head Unit,Steering Wheel Control Adaptor,Remote Adjustable Supension Rod System, Taxside Dual Battery System.

8th Dec 2010 1:03 am

Bushwanderer

Member Since: 27 Nov 2007
Location: Northern Rivers, NSW, Australia
Posts: 2050

2005 Discovery 3 TDV6 S Manual Buckingham Blue

Hi Caver,
I hope that I'm not being picky, but will a test for glycol contamination pick up OAT contamination?

TIA,
Peter The Bearded Dragon

8th Dec 2010 4:23 am

caverD3

Member Since: 03 Jul 2006
Location: Oberon, NSW
Posts: 6922

Depends if you have put OATs in your transmission.

â€œThere are only three sports: bullfighting, motor racing, and mountaineering; all the rest are merely gamesâ€
Ernest Hemmingway
D4 3.0 Active Diff, Adaptive Lights, High Beam Assist, Surround Cameras, Privacy Glass.
D3 2.7:Adaptive Headlights,Electronic Rear Diff,ARB Bar,Blaupunkt Speakers,JVC Powered Subwoofer,Removable Snorkel,Mitch Hitch,Pioneer After Market Head Unit,Steering Wheel Control Adaptor,Remote Adjustable Supension Rod System, Taxside Dual Battery System.

8th Dec 2010 4:44 am

SteveNorman

Member Since: 14 Oct 2005
Location: Somerset
Posts: 1145

Hi all, Yes OAT (organic additive technology), (or Landrover antifreeze 8) ), is Glycol based & it does test positive to the test.

Regards
Steve

8th Dec 2010 7:25 am

caverD3

Member Since: 03 Jul 2006
Location: Oberon, NSW
Posts: 6922

Sorry, Bushwander, couldn't resist it.

Doesn't matter what colour the coolant they will test for it, I think it costs about $50? â€œThere are only three sports: bullfighting, motor racing, and mountaineering; all the rest are merely gamesâ€
Ernest Hemmingway
D4 3.0 Active Diff, Adaptive Lights, High Beam Assist, Surround Cameras, Privacy Glass.
D3 2.7:Adaptive Headlights,Electronic Rear Diff,ARB Bar,Blaupunkt Speakers,JVC Powered Subwoofer,Removable Snorkel,Mitch Hitch,Pioneer After Market Head Unit,Steering Wheel Control Adaptor,Remote Adjustable Supension Rod System, Taxside Dual Battery System.

8th Dec 2010 9:23 am