Member Since: 31 May 2013
Location: Birmingham
Posts: 226
I seem to recall a few new parts, so let's see what they say. I would, however expect the work to last more than 10 months.
I will update once I get deatails back from them. I am sure that they will just resolve the issues and get the Landy working as beautiful as ever.D4 HSE all the way
3rd Sep 2015 9:39 am
Paul68
Member Since: 01 Mar 2015
Location: Dudley
Posts: 358
Have you tried ba transmissions they do them for £400 fitted
There's a write up on forum somewhere about them
3rd Sep 2015 8:40 pm
Weedyapl
Member Since: 23 Sep 2015
Location: Melbourne
Posts: 81
Just wanted to add my experience. I just purchased a 2005 Disco 3 HSE with 170,000km on clock and it all runs fine other then the slight shudder at 2000 rpm climbing up an incline and changing from 2nd to 3rd.
Reading this forum and others I rang around a heap of LR specialists and ended up taking it to A&B automatics in Melbourne (ZF transmission specialists) for a double flush (couldn't find any one who does a mega flush in AUS) all the LR specialists here only do double flushes after speaking to them. A&B say its still there slightly but i can't really feel it and i live on a mountain so its had plenty of chances to shudder. They said either one of two things will happen. It will either slowly get even better as the filter catches the small amount of crap left in it or it will get worse again after 1 week and if thats the case its trans reco and new torque convertor for around $6.5k AU.
Mine thankfully had the metal sump and full service history so i know the flush was done at 80,000km as it should have been.
Love the car though and can't wait to take it off road down some tracks i couldn't take my 2wd Ford AU down.
Cheers!
26th Sep 2015 11:42 pm
maxmax
Member Since: 02 Mar 2010
Location: Surrey
Posts: 181
So, I have really similar issues. Where can be recommended for the gearbox overhaul and torque converter replacement? We live in Surrey, but given the likely expense don't mind travelling for quality recommended work. Ta.D3 2.7 TDv6 HSE, 2005 in silver.
2009 nav disc (thanks Wiggs)
2007 software upgrade (thanks Wiggs and Geoff) with 3 flash indicators, follow me home reverse lights, fog with side lights & canadian driving lights
D4 bluetooth module (thanks Wiggs again)
22nd Oct 2016 4:35 pm
FakeTan
Member Since: 17 Aug 2017
Location: Cork
Posts: 39
ZF Transmission Rebuild
I had shuddering on hills and occasionally on the flat. I went for a transmission flush. Problem left but returned after a few days.
I subsequently got my transmission rebuilt at a cost of EUR2500. Cork Gearbox Centre. drives like a dream.
if you do plan to get your transmission rebuilt, make sure to ask them to view when the gearbox has been dismantled. Check that all the valves and clutches are genuine or OEM.
The transmission for Land Rover Discovery 2.7 litre is by ZF.
17th Aug 2017 10:22 am
bobbyh
Member Since: 27 Aug 2017
Location: Milton Keynes
Posts: 1
Specialist you used
Hi There,
Can you recommend the specialist you used. I think I have the same issue you have. @amondeggs
I know it been a while and also has your problem ever re-appeared?
27th Aug 2017 9:42 am
FakeTan
Member Since: 17 Aug 2017
Location: Cork
Posts: 39
Cork Gearbox Centre but they are located in Cork, Ireland.
I'd say do a net search on "gearbox rebuild" or something like that in your area. Check them out on google places for reviews.
29th Aug 2017 2:01 pm
Airportman
Member Since: 17 May 2014
Location: Hinckley
Posts: 343
Have same problems...30mph/ 2000 rev judder, have taken her to a auto transmission specialist in my area and been told that they think it is a pressure problem in the gearbox.
They have said that it need re-bushing and a new TC, at cost of £1700.
The thing is I had a new TC 30,000 miles ago at a cost of £1000 but the guy says that he will not do the job and use the old one I need a new one.
Would appreciate an opinion from you guys as to whether you think that is correct before I go and spend that kind of money.
PeteIID BT
6th Sep 2017 11:24 am
John C
Member Since: 28 Aug 2007
Location: East Yorkshire
Posts: 3292
For what it's worth. A gearbox specialist I spoke to said they wouldn't just replace the torque convertor (at a cost of £1000 - just like you) because the issue would reappear a few K later and would need more work - exactly like the issue you're describing.
I don't know what I'm talking about and am probably not quoting my advice correctly, but basically it sounds like this new person you're speaking to is saying the same thing the specialist I spoke to is saying...
John2020 SDV6 D5 HSE, Carpathian Grey +
2022 Tesla Model Y LR... almost Carpathian Grey
Previously : 2005 TDV6 SE Auto, Cairns Blue (288K) - ours for 16 years
6th Sep 2017 11:32 am
Airportman
Member Since: 17 May 2014
Location: Hinckley
Posts: 343
Thanks John, does sound similar.
My guy says that because the gearbox lacks pressure it does not lock the TC sufficiently for it to work correctly hence it needs re-bushing to stop the pressure escaping.
My question is :- would this scenario damage the TC enough to warrant needing a new one when the
current one has only done 30,000 miles ?... if it does, fine I need to have it done, but I would like to have a second opinion if possible from someone in the know
PeteIID BT
6th Sep 2017 12:08 pm
Dutchrockboy
Member Since: 16 Apr 2014
Location: Germany
Posts: 85
SteveMilner wrote:
What can happen is that if you run the gearbox for too long without an oil change (every 30K miles as suggested) then the breakdown of the oil can result in wear to this silicone bead and holes to be blown through it. As this gets worse the leaking of pressure from the hydraulic fluid can result in not enough "oomph" to move things properly.
Typically this this manifests with the torque convertor failing to lock up at lower revs. If you get the revs up, you increase the pressure of the fluid, overcoming the leaks, which does force the TC to lock up.
The slipping TC causes the plates in the TC to rub against each other and polish them to a glass like surface which makes the slip more likely. As the TC slips, heat builds in the transmission fluid which degrades further.
It's a bit of a vicious cycle.
The recon of the TC or new TC will likely use better quality plates and will lock up even if you have poor seals around the channels. It's another chunk of cash to get the valve body re-conditioned on top of the work you have had done.
Thanks Steve for your Post.
I am having the same problem. Schudder on Load in low revs. IID tool says the TC does not lock.
Now i have a new Engine built in and also a new TC, and.... no difference!!!
So in stead of the TC, the problem must be the not-closing of the TC.
The shudderfix helped me. I think it makes the oil thinner so that the pressure will go up.
I will have the Valves in the Mechatronic checked/renewed. I am thinking about doing this myself because i am trusting less and less people.
Pete,
If i had my TC changed for 30k Miles i would not replace it because i made a habit of changing to lowergear/higher Revs when the shuddering takes places. But if you drive under load schuddering for 30 k miles, the TC might be defektif now.
Last thing. I heared the plates in the TC are covered in Oil, not like a dry clutch. So the wear will not be fast.
6th Sep 2017 12:56 pm
Airportman
Member Since: 17 May 2014
Location: Hinckley
Posts: 343
Thanks Dutchrockboy,
I have been careful with the TC in as far as increasing or decreasing revs when the shudder starts, that's why I am a little reluctant to replace it.
At the end of the day I suppose we should listen to the experts and take the hit or what is the point in asking them.
PeteIID BT
6th Sep 2017 4:49 pm
Dutchrockboy
Member Since: 16 Apr 2014
Location: Germany
Posts: 85
I did some Logfiles on the TC which i would like to compare with someone.
These are the Values i logged:
Wheel Speed, Transmission oil temp, TC, Throttle Position, Engin speed, Transmission current gear.
I want tio find out when the TC is closed (Value = 2):
Then i did a acceleration 0-120 with the throttle on about 33%:
Click image to enlarge
I hope you can recognise the picture.
On 33% the TC closes in 3. gear and in 6.
Then i did a acceleration 0-120 with the throttle on about 50%:
Click image to enlarge
On 50% the TC does not close at all. it goes from open to regulated in 4. gear
I am afraid this means the valve that should close the TC on 4,5,and 6. is faulty.
Can someone do the same log so i can see the difference?
11th Sep 2017 7:53 pm
Dutchrockboy
Member Since: 16 Apr 2014
Location: Germany
Posts: 85
Can it be that i finally found the solution?
I have this Transmission problem. TC is not closing in high gears.
The Sollution in the eyes of the "friendly people" is changing the TC.
that does not close the TC. A new TC just conceils the symptoms.
The other sollution of "the lying" people is to built in a new transmission.
I hate to change a 2-3k€ Part wenn a 10 cents part is faulty.
I came along this video:
A video of a BMW with aZF6HP26 transmission. The same i had in my BMW 730 and the same as the LR3.
In the Comments: "Mechatronic/valve body that controls the oil pressure to the torque converter's clutch is worn out and leaks enough for the pressure to decrease enough to disengage the clutch. After that it gets a surge of pressure and locks up again."
Also this Comment:
Anyway, for the usual surging there are many reasons.
1) solenoid controlling the valve is dirty/going bad
2) seals in that valve are bad. For that there's http://www.sonnax.com/parts/4379-zip-kit
3) the actual metal body is worn. In that case, the cylinder would need to be bored and oversized valve installed
4) clutch of the torque converter is worn out
So number 2 is the 0,10€ seal am looking for. I want to start checking if this seal is faults and after that i can change the more expensive bits.
I will do some more logging as soon as my Instrument Cluster gets back to me.
I hope to find out with which values i can pinpont the failure.
But i have a feeling i am getting nearer....
19th Sep 2017 8:09 pm
character
Member Since: 31 Dec 2007
Location: wiltshire
Posts: 5781
Bristol Trans did a mega flush and new filter, dr tranny early part of the week. Symptoms more pronounced, expecting torque converter but not ruled out transfer box issues.
Interestingly local LR stealers are quoting very close price for the LR HP6 complete recon box/torque with TWO years unlimited mileage warranty as Bristol are for one of their units with 12months, 17k mile warranty :whistle
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