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DISCO3.CO.UK > Maintenance & Mods (D4)

Booked my 10 year service on lr4 disco but....
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Evotone
 


Member Since: 10 Nov 2021
Location: Camberly
Posts: 5

United Kingdom 2012 LR4 3.0 TDV6 Base 7 Seat Auto Causeway GreyLR4
Booked my 10 year service on lr4 disco but....

I've been advised against gearbox oil change as currently box has zero issues or clunks, I'm told I could creat issues by changing the oil.

Just wanted opinions and experiences on this really?[/url]  
Post #226192813th Nov 2021 12:57 pm
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LT
 


Member Since: 31 Dec 2005
Location: South West
Posts: 23866

United Kingdom 2016 Discovery 4 3.0 TDV6 Landmark LE Auto Santorini BlackDiscovery 4

You’re far more likely to cause issues by not changing the oil. Obviously it must be the correct oil.

Use the search facility to find posts about Megaflush.

Thumbs Up 2006 D3 HSE (Original & still the best)-GONE
2010 D4 HSE (A bit bling)-GONE
2014 D4 HSE (Almost too bling)-GONE
2015 D4 HSE (A heated what?)-GONE
2016 D4 Landmark (Written Off)-GONE
2016 D4 Landmark (Surely the last!) PD1881 rims-GONE
2017 FFRR SDV8 Autobiography (now semi-retired)  
Post #226193013th Nov 2021 1:10 pm
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kirkyworld
 


Member Since: 01 Mar 2016
Location: Northampton
Posts: 566

England 2016 Discovery 4 3.0 SDV6 Graphite LE Auto Santorini BlackDiscovery 4

I'll be doing mine at 6 years/50k miles.  
Post #226199013th Nov 2021 7:19 pm
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Disco_Mikey
 


Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20858

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

The 6HP28 and the 8HP boxes in the D4 are much, much better than the original 6HP26 fitted to the D3...

We've flushed them at 160k+ without any issues Thumbs Up My D3 Build Thread

TDV8 Retrofit Build Thread  
Post #226201413th Nov 2021 10:23 pm
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s60r
 


Member Since: 14 Mar 2021
Location: West Sussex
Posts: 287

United Kingdom 2014 Discovery 4 3.0 SDV6 Commercial XS Auto Santorini BlackDiscovery 4

Mine was done at 60k or 5 years I think? As per the LR service schedule… it’s all online so I guess every 60k or 5 years would be correct if you are at 10 years now.


It’s an interesting subject…. This gearbox is excellent as we all know and is used across a few different vehicles…. In my now gone BMW X5 they insisted it stayed “sealed for life” and was never included in any service schedule.

A D4 is likely to have a very different life to a pretty X5 so I put it down to that but I would stick to LR service schedule. It’s all online to look at just pop your vin number in. A mod a week until I have nothing to improve or add.  
Post #226206114th Nov 2021 10:20 am
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Disco_Mikey
 


Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20858

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

Personally, I'd stick to ZFs service interval, of 7 years and 50-75k miles Wink

They built the box, they know what's needed from a maintenance perspective Thumbs Up My D3 Build Thread

TDV8 Retrofit Build Thread  
Post #226207714th Nov 2021 10:58 am
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s60r
 


Member Since: 14 Mar 2021
Location: West Sussex
Posts: 287

United Kingdom 2014 Discovery 4 3.0 SDV6 Commercial XS Auto Santorini BlackDiscovery 4

So I just checked mine online.... the LR service schedule is more frequent than ZF's! Mine was completed at 5 years as per LR.

The BMW with the very same box.... sealed for life.

ZF somewhere between the 2...... 7 years or the same 80k mileage as LR.


As the OP originally noted.... a bit of a minefield! At least you have the all the information now Evotone! I would get it done if you don't have a record of it being changed ..... but that's subjective Laughing Laughing Thumbs Up A mod a week until I have nothing to improve or add.  
Post #226208314th Nov 2021 11:31 am
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Disco_Mikey
 


Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20858

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

Transfer box is 5 years, gearbox 10 years from JLR Thumbs Up My D3 Build Thread

TDV8 Retrofit Build Thread  
Post #226209814th Nov 2021 1:02 pm
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s60r
 


Member Since: 14 Mar 2021
Location: West Sussex
Posts: 287

United Kingdom 2014 Discovery 4 3.0 SDV6 Commercial XS Auto Santorini BlackDiscovery 4

Interesting Mikey….

It was prior to my ownership so I really don’t know….. but my online service states “transmission oil changed” at 5 years….. so that will have been the transfer box and not the gear box? Confusing! A mod a week until I have nothing to improve or add.  
Post #226244015th Nov 2021 10:53 pm
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Disco_Mikey
 


Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20858

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

Most likely... My D3 Build Thread

TDV8 Retrofit Build Thread  
Post #226248216th Nov 2021 6:49 am
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kirkyworld
 


Member Since: 01 Mar 2016
Location: Northampton
Posts: 566

England 2016 Discovery 4 3.0 SDV6 Graphite LE Auto Santorini BlackDiscovery 4

I can't see anywhere in my LR paperwork the gearbox is changed or due to be changed, transfer box yes but not gearbox. MY16 D4.  
Post #226258116th Nov 2021 4:27 pm
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kirkyworld
 


Member Since: 01 Mar 2016
Location: Northampton
Posts: 566

England 2016 Discovery 4 3.0 SDV6 Graphite LE Auto Santorini BlackDiscovery 4

s60r wrote:
Mine was done at 60k or 5 years I think? As per the LR service schedule… it’s all online so I guess every 60k or 5 years would be correct if you are at 10 years now.


It’s an interesting subject…. This gearbox is excellent as we all know and is used across a few different vehicles…. In my now gone BMW X5 they insisted it stayed “sealed for life” and was never included in any service schedule.

A D4 is likely to have a very different life to a pretty X5 so I put it down to that but I would stick to LR service schedule. It’s all online to look at just pop your vin number in.


Can you show me the LR schedule that includes the Gearbox oil please? Mine doesn't.  
Post #226258216th Nov 2021 4:28 pm
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s60r
 


Member Since: 14 Mar 2021
Location: West Sussex
Posts: 287

United Kingdom 2014 Discovery 4 3.0 SDV6 Commercial XS Auto Santorini BlackDiscovery 4

As stated above it was prior to my ownership.... my service states "transmission fluids changed" I have now been advised by Disco Mikey above that it would probably been the transfer box and differential oils.


I have now searched through online and can confirm that the "automatic transmission fluid" is scheduled to be changed at 160k or 120 months. (along with the transfer box, locking dif & non locking difs)

There is nothing mentioned for "Automatic transmission fluid" until 10 years or 160k miles. I have searched this via my VIN so this is specifically a March 2014 D4 facelift.


It is bloody confusing that "transmission fluids" on my service sheet only relates to Dif and transfer box though!


Hope that clears up the confusion! Laughing A mod a week until I have nothing to improve or add.  
Post #226262416th Nov 2021 7:48 pm
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