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6-sp auto gearbox - flushes, faults, failure and 'finking'
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fakesnake
 


Member Since: 30 Mar 2006
Location: Leicestershire
Posts: 281

2010 Discovery 4 3.0 TDV6 HSE Manual Zermatt SilverDiscovery 4

OK -looks like it is at this service then! Thanks
 Richard  
Post #125471118th Mar 2014 9:37 am
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eenomc
 


Member Since: 07 Oct 2013
Location: Moray
Posts: 173

Scotland 

Just had mine flushed by disco_mikey at the weekend and although my oil was pretty clean, the flush with new oil has certainly made the box a lot smoother. I've scanned the last 5 years 70k of the cars £13k service history and no mention of any gearbox work.

I'm wondering if the oil might degrade in one of 2 ways, first the dark colour (hard work like towing) and second similar to original colour but with lost properties? Whatever, the flush has improved drivability and that alone is proof its worth a change on a preventative schedule.
  
Post #125501918th Mar 2014 6:24 pm
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alex_pescaru
 


Member Since: 19 Dec 2010
Location:  RO
Posts: 270


Sorry if it was answered before...

After such a flush, do you reset the box's learnt information / clear adaptions / clear oil degradation?
If you don't, which could be the consequences if you only flush the oil and leave those alone?
Thanks!
  
Post #125502518th Mar 2014 6:30 pm
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eenomc
 


Member Since: 07 Oct 2013
Location: Moray
Posts: 173

Scotland 

No reset on mine but judging by the gearbox reset thread on here it might be worthwhile.
  
Post #125503318th Mar 2014 6:36 pm
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Robbie
 


Member Since: 05 Feb 2006
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United Kingdom 2013 Discovery 4 3.0 SDV6 HSE Auto Baltic BlueDiscovery 4

Reseting and reflashing may be appropriate, but reading and understanding the fault codes or other symptoms is essential in my view.

Never reflash the gearbox without reseting the adaptations first.

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Post #125503918th Mar 2014 6:48 pm
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john17ro
 


Member Since: 16 Dec 2013
Location: Bucharest
Posts: 2

Romania 

So, if I intend to change oil 7 filter, should I first flush the old one, refill, warm it up and then flush again and change the filter? Did I understand correctly? Thanks!
  
Post #127318922nd Apr 2014 7:18 am
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gensetsteve
 


Member Since: 01 Jan 2014
Location: hampshire
Posts: 340

United Kingdom 2011 Discovery 4 3.0 TDV6 Commercial Auto Belize GreenDiscovery 4

Did I read on here the filters dont get dirty unless the box has done very high miles ?
 D4  
Post #127350122nd Apr 2014 6:27 pm
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geoff.
 


Member Since: 24 Jan 2010
Location: West kent
Posts: 8531

England 

ive fitted 2 now with high milage 140k and 170k and both been fairly clean and both magnets in the sump been free of swarf Thumbs Up
  
Post #127351322nd Apr 2014 6:39 pm
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Disco_Mikey
 


Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20713

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

My own sump was immaculate, at 114k.

Only sump I have seen with anything worrying, was a TDV8 box, where 1st gear had Censored itself, due to driver error
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Post #127353422nd Apr 2014 6:57 pm
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Fanie
 


Member Since: 11 Dec 2012
Location: Pretoria
Posts: 21

South Africa 2006 Discovery 4 3.0 TDV6 SE Auto Arctic FrostDiscovery 4
Re: 6-sp auto gearbox - flushes, faults, failure and 'finkin

waterbuoy wrote:
6-speed automatic gearbox - flushes, faults, failure and 'finking!'


Affected vehicles
Firstly, I must emphasise that this issue (according to Land Rover) does not affect all model years. Land Rover say that it may affect vehicles within the following model/year/chassis no combinations:

Discovery 3 / LR3 (LA) - ZF 6HP Automatic Transmission
Model Year: 2008-2009
Chassis Range: 8A475162-9A513325

Discovery 4 / LR4 (LA) - ZF 6HP Automatic Transmission
Model Year: 2010-2011
Chassis Range: AA513326-BA588606

Range Rover (LM) - ZF 6HP Automatic Transmission
Model Year: 2008-2011
Chassis Range: 8A282106-BA356686

Range Rover Sport (LS) - ZF 6HP Automatic Transmission
Model Year: 2008-2011
Chassis Range: 8A165260-BA706935


Note At least one of the people who have helped me in this exercise think that the problem is not specific to just the above vehicles, and may be more widespread.



It is indeed more widespread, my 2006 TDV6 had exactly the same symptoms and error codes, got worse after every attempt to flush. Started symptoms around 150k km's, by 170k kms it was properly broken.

Replaced with a second hand box from a lower mileage vehicle.
  
Post #127706229th Apr 2014 8:10 pm
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v8bobtail
 


Member Since: 11 Apr 2009
Location: Wisbech cambs
Posts: 111

England 2005 Discovery 3 TDV6 SE Auto Buckingham BlueDiscovery 3

Just had our box replaced, 55 plate se done 92k!!!! Owned it since 33k and has done very very little towing, I do drive it quite hard and had never missed a beat until we had transmission fault limited gears available flash up during an overtake, put it into neutral and back into drive then the engine went bang!!!!! Big Cry had a new engine put in then dealer decides after fitting on a road test that there may be a problem with gearbox. 1 month later and its undrivable as it wont change into 4th gear. I changed the gearbox oil and filter myself and couldn't believe how black and burnt the oil was, there was a lot of fine sludge stuck to the magnet in the sump. My argument with Land Rover is that the 2 issues must be related and can not "just be coincidence"!!!!! I asked for a report on the engine failure but keep getting fobbed off. HELP!!!!! PLEASE!
  
Post #141691329th Jan 2015 9:24 pm
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flash
 


Member Since: 14 Jun 2013
Location: Chile
Posts: 66

2011 Discovery 4 3.0 SDV6 HSE Auto Galway GreenDiscovery 4

After this intresting reading, somebody has been noticed about oil flushing can solve this issue.??
  
Post #154982923rd Oct 2015 11:21 pm
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Lost for Words
 


Member Since: 03 Sep 2013
Location: Warminster, Wiltshire
Posts: 6703

United Kingdom 2006 Discovery 3 TDV6 HSE Auto Zambezi SilverDiscovery 3

Flushing is kind of integral to the issue itself - the key point being made is that on a high mileage box, renewing the fluid may reveal such problems, as contaminants are removed, thinning the fluid. Wink

A flush much sooner is only a good thing, and will indeed prevent such problems when done preventitively. Thumbs Up
 Current: Discovery 3 06MY (55 reg) HSE Auto Zambezi Silver Zambezi Silver Allisport Fast Road Intercooler, V8 Brakes, Silicone IC Hoses, EGRs Blanked, Remapped, De-Cat pipe, FBHIC
Freelander 2 2007 HSE Manual Tambora Flame
Previous: FL2 56 reg SE Manual Black (written off Sad )
Disco 3 06 reg B7S Manual Rimini Red Rimini Red
Disco 2 TD5 Y reg ES Manual Blue - Chipped Very Happy
Several Discovery 300 TDis
 
 
Post #154989024th Oct 2015 8:52 am
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flash
 


Member Since: 14 Jun 2013
Location: Chile
Posts: 66

2011 Discovery 4 3.0 SDV6 HSE Auto Galway GreenDiscovery 4

Thanks for your reply.

How to know if it is a machanical or electromechanical problem?
The error I read
P0730-00 TCM 62,059km Incorrect gear ratio
U0402-68 ATCM 64,782km Invalid data received from transmission control module
P0735-00 TCM 67,204km Gear 5 incorrect ratio
U3000-17 PBM 67,768km Control module

It appears under certain way of driving. More aggressive driving.

Thanks in advance
G.
  
Post #154995924th Oct 2015 11:26 am
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Lost for Words
 


Member Since: 03 Sep 2013
Location: Warminster, Wiltshire
Posts: 6703

United Kingdom 2006 Discovery 3 TDV6 HSE Auto Zambezi SilverDiscovery 3

You'd be best speaking to an auto transmission specialist; it's often said that they use witchcraft for diagnosis! Thumbs Up

Quote:
P0735-00 TCM 67,204km Gear 5 incorrect ratio


This is typical of an E clutch issue, as per the thread. The mileage (or rather km-age) certainly looks very low to be getting transmission issues though. Exclamation
 Current: Discovery 3 06MY (55 reg) HSE Auto Zambezi Silver Zambezi Silver Allisport Fast Road Intercooler, V8 Brakes, Silicone IC Hoses, EGRs Blanked, Remapped, De-Cat pipe, FBHIC
Freelander 2 2007 HSE Manual Tambora Flame
Previous: FL2 56 reg SE Manual Black (written off Sad )
Disco 3 06 reg B7S Manual Rimini Red Rimini Red
Disco 2 TD5 Y reg ES Manual Blue - Chipped Very Happy
Several Discovery 300 TDis
 
 
Post #154996424th Oct 2015 11:37 am
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