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Engine failure 2015MY
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Cobstar
 


Member Since: 03 Mar 2010
Location: UK
Posts: 194

United Kingdom 2016 Discovery 4 3.0 SDV6 Graphite LE Auto Loire BlueDiscovery 4

Sorry to hear this Wiggs - hope you get a satisfactory solution sorted out.

Like kirkyworld I'd be interested in opinions on doing more frequent oil and filter changes, and other maintenance items. What is the consensus on recommended intervals in terms of mileage and time intervals?

I've always hated long-life servicing and all my cars have had annual oil and filter changes, at no more than 9 to 10k. And I get fed up with arguing with main dealers that it's my choice and my money if I want to change it more frequently than required.

I did buy a second hand A4 a few years back with 19,000 miles on clock and she'd only just had her first oil and filter change. I didn't keep her very long as my car needs changed when I moved jobs and areas so I don't know how she's doing now.
  
Post #176590419th Jan 2017 8:07 pm
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Gareth
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Member Since: 07 Dec 2004
Location: Bramhall
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My money's on design flaw. I tried reading the following document, I know it's to do with marine diesels, but have to be honest I lost the will to live after page 2!

http://rules.dnvgl.com/docs/pdf/gl/maritimerules/gl_vi-4-2_e.pdf
  
Post #176591219th Jan 2017 8:18 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

Cobstar wrote:
Like kirkyworld I'd be interested in opinions on doing more frequent oil and filter changes, and other maintenance items. What is the consensus on recommended intervals in terms of mileage and time intervals?


Down to personal choice but for me the goal is preserve oil quality which is degraded by unburnt diesel (the joys of DPF regeneration). I change my oil at around 6k but leave the filter for the annual service at 12k.

I'm probably a bit odd in doing it that way but for me it makes sense and it could not be easier - pop the hose onto the extraction tube, give the pump a few strokes and by the time I have grabbed the replacement oil, the funnel and some kimwipe the sump has been drained.

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Post #176592719th Jan 2017 8:34 pm
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BAZ8046
 


Member Since: 26 Feb 2010
Location: Chatham
Posts: 280

2016 Discovery 4 3.0 SDV6 Landmark LE Auto Waitomo GreyDiscovery 4

I do an interim oil and filter change in between the main services.
It's nice and easy with an oil extraction pump and doesn't cost much.
I'll let you know if mine goes bang!
It can't do any harm and 16k is asking a lot of the oil.
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Post #176593419th Jan 2017 8:42 pm
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sean 471
 


Member Since: 26 Apr 2011
Location: Sheffield
Posts: 2990

United Kingdom 2007 Discovery 3 TDV6 Pursuit LE Auto Java BlackDiscovery 3

would degraded oil lead to crankshaft failure? Many D3 run to the 15k service interval without any real problems. No mechanic but struggle with this one.
  
Post #176593619th Jan 2017 8:46 pm
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spikekellyrm
 


Member Since: 23 Jul 2015
Location: Manchester
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United Kingdom 2012 Discovery 4 3.0 SDV6 XS Auto Baltic BlueDiscovery 4

Mine had an engine failure last June. A shell rotated(?) starving the crank of oil.

2012 8 speed @ 74k

New engine took 6 weeks to fit, they told me it had been fitted with a new type of parts that have locating lugs crimped into them, like the newer versions of the engine have... Somehow I don't believe them.
I'm now worried about the new engine, changing the oil inbetween services but surely if parts move that shouldn't, oil condition wouldn't be a factor?
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Post #176594519th Jan 2017 8:54 pm
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Farmer Col
 


Member Since: 05 Jan 2017
Location: Hampshire
Posts: 263

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

Let's not forget we only hear about the failures, and not about the thousands that are ok. From what I've read the TDV6 is actually below the failure rate Landrover expect. Those that fail I would imagine will be a mechanical failure, rather than an oil problem, as long as a good spec oil is used. Food for thought, two people I know who work in the oil industry told me you need never change your oil as long as you use a high spec oil and change the filter regularly!!
  
Post #176595519th Jan 2017 9:00 pm
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Ent
 


Member Since: 12 Oct 2007
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Iraq 2011 Discovery 4 3.0 SDV6 XS Auto Fuji WhiteDiscovery 4

I believe turbos shorten oil life so with the D4 having two of them I'd say oil change every 6k would be wise.
I read a long time ago about oil molecules being in long chains and the more and harder it's used the shorter the chains become and hence less protection. Someone will be along shortly with the definitive answer.
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Post #176596119th Jan 2017 9:12 pm
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Disco_Mikey
 


Member Since: 29 May 2007
Location: Dundee, Scotland
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Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

10k max or annually for any oil change in anything I own Thumbs Up
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Post #176596319th Jan 2017 9:13 pm
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Flack
 


Member Since: 06 Sep 2006
Location: Preston Lancashire
Posts: 6308

England 2007 Discovery 3 TDV6 XS Auto Stornoway GreyDiscovery 3

My Oil gets changed every six months along with the filter..


Flack Thumbs Up
  
Post #176596719th Jan 2017 9:16 pm
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dubbs
 


Member Since: 18 Apr 2012
Location: Gloucestershire
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United Kingdom 2015 Discovery 4 3.0 SDV6 HSE Lux Auto Causeway GreyDiscovery 4

Service intervals on my old Evo were 4000 miles....

I'm sure manufacturers have simply learned the average failure rates and time to failure then just done their maths for the service intervals. To look after the engine properly everything probably needs to be far shorter.
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Post #176596819th Jan 2017 9:19 pm
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robpenrose
 


Member Since: 12 Jan 2016
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United Kingdom 2010 Discovery 4 3.0 TDV6 HSE Auto Stornoway GreyDiscovery 4

I guess the question to ask is has anyone who has had an engine fail done anything over the LR spec for servicing?

Intermediate service intervals etc??
 

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Post #176597519th Jan 2017 9:27 pm
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beanie
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Member Since: 12 Mar 2011
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England 2013 Discovery 4 3.0 SDV6 GS Auto Fuji WhiteDiscovery 4

As already posted, 5000 mile oil changes on mine, degraded "thin" oil may be leading to reduced lubrication of the crank shell and possible shell rotation may be the result
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Post #176600019th Jan 2017 9:58 pm
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Gareth
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Member Since: 07 Dec 2004
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Well mine just gets dealer serviced when it tells me. It's now 10k into its interval. I'm happy to give a sample of engine oil to anyone who wants to get it analysed? Have we got anyone here who can get that done?

Mine has a DPF, and gets mixed use. I do some long trips in it and generally I don't hang around. It also tows the caravan regularly, and wifey gives it plenty of short runs in between, so it gets a good varied life.
  
Post #176606020th Jan 2017 12:04 am
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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

sean 471 wrote:
would degraded oil lead to crankshaft failure? Many D3 run to the 15k service interval without any real problems. No mechanic but struggle with this one.


Yes, degraded oil can lead to early failures or expose previously unrealised latent failures. The crank on the D3 is not that different to the D4 but the D4 dilutes its own oil, runs 2 turbos and produces much more torque.
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Battery & Quiescent Current Drain Testing

Diagnostics for:
Defender, FL2, D3, D4, Evoque, RRS & FFRR
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Post #176607820th Jan 2017 7:15 am
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