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Suspension / HDC / Park brake / Transmission fault hell
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Parody
 


Member Since: 02 Mar 2014
Location: Kent
Posts: 34

2008 Discovery 3 TDV6 HSE Auto Stornoway GreyDiscovery 3
Suspension / HDC / Park brake / Transmission fault hell

I'm wondering if any of you clever chaps can put me out of my Groundhog Day of discovery issues.

So first some history.
Some time back we used to get an intermittent suspension fault. It didn't affect anything, and turning the car off and on "fixed it". That hadn't happened for some time.

I then started to get really poor performance below 3000rpm followed by a puff of black smoke and then off it went. I had the EGR valves done some time back so thought it couldn't be that and there were no errors like before. But I thought I'd fit a blanking plate set to see, and sure enough no issues after (I was expecting a light since it's a 2008 model)

I then had a remap done, no issues, much better performance.

And now for the last couple of weeks we are back to the suspension fault and a host of others as per the title. They occur intermittently, sometimes together and in different mixtures. Off/on fixes still but it is occurring more and more often.

I have read the forums and so far tried:
-new battery
-new brake pedal switch
-suspension recalibration (after booked in with specialist).

I was hopeful it was the last one but alas, it's just happened again.

I'm running out of patience with this car. It's not the cost but the inconvenience. We are due to do a 400mile trip next week!

Can anyone tell me what to try next? The specialist said if the suspension reset doesn't fix it we will have to take it to land rover and I would rather not do that!

Thanks all
  
Post #169139012th Aug 2016 5:29 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

Try the battery and the brake pedal switch.
  
Post #169144112th Aug 2016 7:40 pm
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Narpy
 


Member Since: 18 Jul 2011
Location: Stockport
Posts: 7830

2005 Discovery 3 TDV6 S Manual Cairns BlueDiscovery 3

Try reading his post. Rolling Eyes
 Mods:
Front Fogs + Halos
FBH Remote Control
The 1st Ever RRS Modded Grill
Garmin Nuvi + D4 Surround + Reversing Camera.
D4 Steering Wheel.
Rear Boot Spoiler.
Twin Brake Lights.
Wing Mirror Indicator Repeaters.
Long Roof Rails
Make your own Narpy grill thread
I'm not scared, I'm outta here. 
 
Post #169145412th Aug 2016 7:56 pm
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hgrimmett
 


Member Since: 11 Oct 2009
Location: Bledlow
Posts: 901

2015 Discovery 4 3.0 SDV6 SE Tech Auto Indus SilverDiscovery 4

You need your codes read, without codes it could be so many things... You're in Kent so Geoff. can't be far away?
 -------------------------------------------------------------------
D4 '15 (64) Se Tech Indus Silver
Tesla Model Y LR (22)
Audi TT Roadster 225 (52)
Tesla Model 3 LR (70) (gone)
Porsche Boxster '96 2.5 5spd project (P)
Mini R52 S (54)
BMW 330e eDrive MSport '16 (gone)
D3 '07 (56) XS TDV6 Buckingham Blue (gone) 
 
Post #169145812th Aug 2016 8:04 pm
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Parody
 


Member Since: 02 Mar 2014
Location: Kent
Posts: 34

2008 Discovery 3 TDV6 HSE Auto Stornoway GreyDiscovery 3

The codes have been read by the specialist but I don't know what they were, will try to find out. Thats when they did the suspension reset. I know there were "lots of them"!
  
Post #169147312th Aug 2016 8:35 pm
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Parody
 


Member Since: 02 Mar 2014
Location: Kent
Posts: 34

2008 Discovery 3 TDV6 HSE Auto Stornoway GreyDiscovery 3

I've been looking for 3 evening now for alternatives after I sell and can't find anything offering the practicality, space and spec of the disco. Nissan Pathfinder is about the closest.

Is the discovery 4 any more reliable? Is it basically a D3 with a facelift and retrim?
  
Post #169149612th Aug 2016 9:22 pm
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hgrimmett
 


Member Since: 11 Oct 2009
Location: Bledlow
Posts: 901

2015 Discovery 4 3.0 SDV6 SE Tech Auto Indus SilverDiscovery 4

I've had many similar issues to you. I have diganosed and replaced brake switch, compressor dryer cover, LPFP and HPFP all of which individually over time have caused the sort of symptoms you describe. They all throw different codes so without you being able to tell us what the codes are we're really shooting in the dark. I'd love to help but with just symptoms it's nigh on impossible.
 -------------------------------------------------------------------
D4 '15 (64) Se Tech Indus Silver
Tesla Model Y LR (22)
Audi TT Roadster 225 (52)
Tesla Model 3 LR (70) (gone)
Porsche Boxster '96 2.5 5spd project (P)
Mini R52 S (54)
BMW 330e eDrive MSport '16 (gone)
D3 '07 (56) XS TDV6 Buckingham Blue (gone) 
 
Post #169156213th Aug 2016 7:47 am
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mjcp
 


Member Since: 02 Sep 2012
Location: Old Windsor
Posts: 403

England 2007 Discovery 3 TDV6 HSE Auto Buckingham BlueDiscovery 3

Am in a similar situation and have been for nearly a year Sad

On the positive side... The Dealer has now replaced the Transfer box control module (it was corroded) and done 70+ miles of road tests in various driving types on multiple days without a re-occurance... a £450 fix, much better than a £1550 HPFP fix!

Expecting to collect the car on Monday evening, I'll report back....


mjcp


See:

http://www.disco3.co.uk/forum/topic148900.html
and
http://www.disco3.co.uk/forum/topic134143.html
and
http://www.disco3.co.uk/forum/topic133414.html
 03/2007 D3 HSE
98 Audi A4 Avant 2.5 TDi Quattro

Gone but not forgotten
03/2003 330Ci Convertible
93 Corrado 2.0l 16V
98 M3 Evo Cab


 
 
Post #169159613th Aug 2016 8:57 am
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Parody
 


Member Since: 02 Mar 2014
Location: Kent
Posts: 34

2008 Discovery 3 TDV6 HSE Auto Stornoway GreyDiscovery 3

Hi all

Ok so the fault code as read by the garage:

C1A13 pressure does not decrease when venting gallery

C1A00 control module

They said they tried the suspension reset due to the first one and are hesitant to start replacing parts when the 2nd one is there, and Land Rover will need to read it to get more info.

They didn't charge me though since it wasn't fixed which is jolly decent of them.
  
Post #169232115th Aug 2016 9:02 am
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Tanglewood
 


Member Since: 27 Feb 2011
Location: Wilts
Posts: 1376

United Kingdom 

Earth straps cause those faults too mate. There is am=n earth strap to the left of the ABS module on the left side of the engine bay. Its tucked away and has a dome end nut on it. Thats was the cause of my issues. I checked and it was loose, tightened it and fault lights went out. I had to reset the fault codes with my IID tool afterwards though. Hope that helps.

Steve
  
Post #169233515th Aug 2016 10:02 am
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Parody
 


Member Since: 02 Mar 2014
Location: Kent
Posts: 34

2008 Discovery 3 TDV6 HSE Auto Stornoway GreyDiscovery 3

Thanks I'll check that out.

I'm reading somewhere about diagnosing suspension faults by pulling fuses.

If it helps at all, I've found that before the fault occurs I am not able to raise the suspension. The switch does nothing, nor does it produce the fault. However if I try and lower the suspension it immediately gives me the suspension fault.

That leads me to conclude its more likely something to do with the suspension than transmission and everything else it mentions.
  
Post #169252315th Aug 2016 7:31 pm
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Parody
 


Member Since: 02 Mar 2014
Location: Kent
Posts: 34

2008 Discovery 3 TDV6 HSE Auto Stornoway GreyDiscovery 3

Earth strap checked and looks fine. I checked fuses and they looked fine too. Pulled some but wasn't sure what difference in behaviour I was expecting / looking for.

The fault can be reproduced at standstill by just attempting to lower the suspension. Choosing special programs doesn't cause anything.

I assume the fault occurs while driving when the car attempts to adjust the suspension slightly - if that adjustment is a height reduction the error occurs. Explains why it is random on each journey and generally occurs less on motorway vs backroads or uneven ground.

So what does the collective grey matter offer?! Does pulling a particular fuse stop the Auto height adjustment - is it 35p behind the glove box?
  
Post #169256015th Aug 2016 8:20 pm
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hgrimmett
 


Member Since: 11 Oct 2009
Location: Bledlow
Posts: 901

2015 Discovery 4 3.0 SDV6 SE Tech Auto Indus SilverDiscovery 4

The fuse pulling you refer to is used to diagnose overnight sinking not the central/compressor issues that you have.

Try doing a forum search for the fault code. For example this thread talks about a wiring fault in the NSF wheelarch that can cause similar issues?

http://disco3.co.uk/forum/topic102275.html?highlight=C1A13
 -------------------------------------------------------------------
D4 '15 (64) Se Tech Indus Silver
Tesla Model Y LR (22)
Audi TT Roadster 225 (52)
Tesla Model 3 LR (70) (gone)
Porsche Boxster '96 2.5 5spd project (P)
Mini R52 S (54)
BMW 330e eDrive MSport '16 (gone)
D3 '07 (56) XS TDV6 Buckingham Blue (gone) 
 
Post #169258815th Aug 2016 9:07 pm
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Parody
 


Member Since: 02 Mar 2014
Location: Kent
Posts: 34

2008 Discovery 3 TDV6 HSE Auto Stornoway GreyDiscovery 3

Trust me I've been searching but seems like there are a lot of possibilities! That link doesn't really give a solution. Replacing the compressor is a likely fix it seems but I don't think it's that because sometime it drops and can get back to normal height just fine after a restart.

However given the symptoms and some more reading I think the exhaust valve makes sense in terms of the inability to lower and the fault saying the pressure does not reduce.

Trying to find a guide for just doing the valve - does the whole thing have to come out either way? If so I may as well do the whole thing.
  
Post #169260115th Aug 2016 9:44 pm
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hgrimmett
 


Member Since: 11 Oct 2009
Location: Bledlow
Posts: 901

2015 Discovery 4 3.0 SDV6 SE Tech Auto Indus SilverDiscovery 4

It's pretty tight to work on the compressor in situ, I replaced the air dryer cover without dropping it down but I confess that I couldn't say with regard to other components. The biggest issue is seized bolts which is why I gave up and did it with it mounted.
 -------------------------------------------------------------------
D4 '15 (64) Se Tech Indus Silver
Tesla Model Y LR (22)
Audi TT Roadster 225 (52)
Tesla Model 3 LR (70) (gone)
Porsche Boxster '96 2.5 5spd project (P)
Mini R52 S (54)
BMW 330e eDrive MSport '16 (gone)
D3 '07 (56) XS TDV6 Buckingham Blue (gone) 
 
Post #169260215th Aug 2016 9:50 pm
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