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Sporadic starting issue and system meltdown!!!
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grifterkid
 


Member Since: 05 Dec 2020
Location: Kent
Posts: 11

United Kingdom 2008 Discovery 3 TDV6 SE Auto Zermatt SilverDiscovery 3
Sporadic starting issue and system meltdown!!!

Oh what fun...

Can anybody please help me??!! My Disco' 3 is being a t!t again.

First of all let me tell you what was done before this/these problem(s) began...

1) New battery
2) New front brake discs
3) Suspension height relay
4) Brake switch (that fixed our magical lowering and rising problems!!)

Now, what is happening is this. Sometimes the car will not start at all... Turn the key and no joy whatsoever, nothing!! At the same time the hazards come on!!

Sometimes the car does start and all seems ok for a bit then, as it drives along, the milometer goes blank (just little black lines running across the screen/module) and the main info screen just goes blank or shows the Land Rover logo. Also, the hazards come on. The performance of the engine itself is not affected but if you turn it off it will not turn back on again (unless it feels like it!)...

It's all very odd and it's all very frustrating...

When this first happened (just after we'd fitted a new battery) the garage we had taken it to (Keith Gott in Alton, very good indeed) said that the battery was almost dead!!! The battery was charged, a new brake switch was also fitted at this point and it was fine, for about 3 days, then it all started over again...

It's just another frustrating problem that I'd dearly love to sort out before I get a can of petrol and box of matches out!!!

If you can think of anything at all that may be causing this please let me know as I'm worried that these little, niggly bits can just amount to infinite labour costs that I just don't have.

Thank you so very much in advance guys, your help and expertise is always appreciated...
  
Post #224425830th Jul 2021 10:44 am
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wizbongre
 


Member Since: 26 Oct 2013
Location: Liverpool
Posts: 695

United Kingdom 2016 Discovery 4 3.0 SDV6 HSE Lux Auto Fuji WhiteDiscovery 4

I had similar with our old D3... It was a fault with the main instrument cluster - if you search for "IPC" on here you'll find a few similar threads.

It was an easy enough fix: I found a working 2nd hand IPC on ebay, which I swapped myself in no time, then Flack came along and programmed the new IPC to the car. Crucially, when this is performed, you can only wind the digital mileage of the new IPC forward, so you MUST find a 2nd hand one that is of lower mileage than yours is currently showing (or live with the higher mileage shown on the replacement.)

I believe you can also get a brand new IPC from LR and have that programmed, however it was too rich for my blood.

There are also other stories of sending the IPC off to be fixed but I didn't have the time to be without the car.

Good luck!
 Cheers,

Gareth

'57 D3 2.7 TDV6 HSE gone and soon to be forgotten!
‘15 D4 3.0 SDV6 HSE Luxury
'64 Audi A6 3.0BiTDi Quattro S-Line Black Edition with lots of toys 
 
Post #224427230th Jul 2021 2:00 pm
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nigethecat
 


Member Since: 11 Sep 2016
Location: Marnoch
Posts: 4234

Ukraine 2016 Discovery 4 3.0 SDV6 Commercial XS Auto Corris GreyDiscovery 4

There’s one for sale here Whistle

https://disco3.co.uk/forum/sale-discovery-...96339.html
 I want to see the sweets before I get into your windowless van... I'm not stupid!

Corris Grey D4 Commercial SE 2016
Zermatt Sliver 2007 D3 SE manual (gone)
Indus Silver D4 HSE 2015 (gone)
Bonatti Grey D3 HSE 2006 (gone)
White D3 S (LHD) 2007 (gone)
Firenze Red D4 HSE 2014 (gone)
Black RRS 3.6TDV8 2008 (gone)
Rusty Green Defender 110 1997 (gone)
Black FL2 HSE 2013 (gone) 
 
Post #224429330th Jul 2021 4:07 pm
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Globetrotter448
 


Member Since: 21 Mar 2017
Location: Londonderry NSW
Posts: 1812

Australia 2007 Discovery 3 4.0 V6 Petrol SE Auto Java BlackDiscovery 3

As you have put in a new battery, did you check the alternator output, may not be charging it fully. +1 on the instrument cluster for the other faults.
  
Post #224436531st Jul 2021 7:14 am
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aja4x4
 


Member Since: 14 Apr 2019
Location: Westbury
Posts: 2463

United Kingdom 2005 Discovery 3 TDV6 SE Auto Zambezi SilverDiscovery 3

You need to fill your vehicle details in, it will help members diagnose your issues.

Vehicles built from 2007 onwards suffer with dash issues after Fords changed to lead free solder which goes hard and brittle over time and can crack.
Pre 2007 vehicles dont suffer with this issue but the dash units can still fail.
 Andrew

D3 2.7tdv6 2005
D4 3.0 SDV6 Commercial died and gone to LR heaven
D5 3.0 SDV6 HSE 
 
Post #224436831st Jul 2021 7:23 am
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grifterkid
 


Member Since: 05 Dec 2020
Location: Kent
Posts: 11

United Kingdom 2008 Discovery 3 TDV6 SE Auto Zermatt SilverDiscovery 3

Hello there...

Thanks for all your help and advice.

What is it about the IPC being on the blink that (potentially) causes these problems??

As I'm still pretty new to this machine I'm keen to see what causes these annoying problems and why!!

Many thanks to you all.
  
Post #22446702nd Aug 2021 10:23 am
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aja4x4
 


Member Since: 14 Apr 2019
Location: Westbury
Posts: 2463

United Kingdom 2005 Discovery 3 TDV6 SE Auto Zambezi SilverDiscovery 3

The solder cracks on the back of the board where the multi plug attaches usually at the top of the plug where there is most strain due to the routing of the wiring loom.
The top connectors are the canbus wiring which should be a complete circuit throughout the car, if you get a break in the system all the control units stop communicating with each other and throw up fault codes.
 Andrew

D3 2.7tdv6 2005
D4 3.0 SDV6 Commercial died and gone to LR heaven
D5 3.0 SDV6 HSE 
 
Post #22446972nd Aug 2021 12:36 pm
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KevinD3
 


Member Since: 05 Aug 2020
Location: Sutton Coldfield
Posts: 1270

England 2008 Discovery 3 TDV6 HSE Auto Stornoway GreyDiscovery 3

Hey Grifterkid, I’d put money on the cluster, I had it a few weeks ago, have a look at my post at the time

https://www.disco3.co.uk/forum/vehicle-failure-195417.html

Sent the cluster off for repair, came back, no issues since
 2008 HSE Stornoway Grey

My Wife thinks the D3 is a hobby, The D3 thinks the wife is 💕 
 
Post #22447582nd Aug 2021 6:33 pm
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grifterkid
 


Member Since: 05 Dec 2020
Location: Kent
Posts: 11

United Kingdom 2008 Discovery 3 TDV6 SE Auto Zermatt SilverDiscovery 3

Thank you all so much...

So, it seems like the IPC is indeed the problem here.

The $64,000 question (or questions!) follows...

1) Do I buy a brand new IPC at huge expense?

2) Do I buy a used IPC for much less money but constantly worry that it's a ticking time bomb and only has a limited lifespan?

3) Do I see if the existing IPC can be brought back to life with some skilful soldering?

Any thoughts and/or suggestions would be great as this one is a right old pain in the sit-down!!
  
Post #22451194th Aug 2021 12:28 pm
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darrind
 


Member Since: 04 Jul 2008
Location: In A World of My Own!
Posts: 2888

England 2013 Discovery 4 3.0 SDV6 HSE Auto Santorini BlackDiscovery 4

As far as I am aware you can have the IPC repaired as it is normally a joint failure internally
 Must stop buying shiny toys....  
Post #22451214th Aug 2021 1:02 pm
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KevinD3
 


Member Since: 05 Aug 2020
Location: Sutton Coldfield
Posts: 1270

England 2008 Discovery 3 TDV6 HSE Auto Stornoway GreyDiscovery 3

I used this guy
https://totaltronics.com/

Bit more expensive than some but sent a video of the testing, good comms and back within 36hours, all perfect since. The solder is a known issue so worth going for a repair first.

As you say beware around £600, if you buy a second hand replacement it has to be off a car with lesser mileage or your car will inherit its mileage (you can profane mileage of the cluster up to March Ece but not down) and you’ll be waiting for the same issue to happen to the replacement
 2008 HSE Stornoway Grey

My Wife thinks the D3 is a hobby, The D3 thinks the wife is 💕 
 
Post #22451704th Aug 2021 5:57 pm
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nigethecat
 


Member Since: 11 Sep 2016
Location: Marnoch
Posts: 4234

Ukraine 2016 Discovery 4 3.0 SDV6 Commercial XS Auto Corris GreyDiscovery 4

Think the mileage on the one I have for sale is around 70-80k... didn't work for me as my D3 at the time only had 18k on the clock Sad
 I want to see the sweets before I get into your windowless van... I'm not stupid!

Corris Grey D4 Commercial SE 2016
Zermatt Sliver 2007 D3 SE manual (gone)
Indus Silver D4 HSE 2015 (gone)
Bonatti Grey D3 HSE 2006 (gone)
White D3 S (LHD) 2007 (gone)
Firenze Red D4 HSE 2014 (gone)
Black RRS 3.6TDV8 2008 (gone)
Rusty Green Defender 110 1997 (gone)
Black FL2 HSE 2013 (gone) 
 
Post #22452275th Aug 2021 7:39 am
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grifterkid
 


Member Since: 05 Dec 2020
Location: Kent
Posts: 11

United Kingdom 2008 Discovery 3 TDV6 SE Auto Zermatt SilverDiscovery 3

I suppose that the condition of the IPC and all its componentry have more to do with where they've been rather than the mileage and age...

I'm going for a new one (limbs, retinas and organs for sale at reasonable rates!!) but even then, how can I be confident the solder isn't going to crumble within a week?!?!?!

Bl@@dy electrics!!!!
  
Post #22452655th Aug 2021 12:02 pm
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BradC
 


Member Since: 29 Apr 2019
Location: Perth
Posts: 118

Australia 2008 Discovery 3 TDV6 XS Manual Izmir BlueDiscovery 3

Solder doesn't fail on a time basis. It fails on mechanical fatigue by either improper application (dry or under-wetted joint) or excessive mechanical stress. Either way, a new one should last as long as the old one did (plus or minus).
  
Post #22452685th Aug 2021 12:22 pm
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