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EGRs should i change or not
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sean 471
 


Member Since: 26 Apr 2011
Location: Sheffield
Posts: 153

United Kingdom 2007 Discovery 3 TDV6 Pursuit LE Auto Java BlackDiscovery 3
EGRs should i change or not

Looking for some advice really. My 57 has covered 70k mostly long journeys and has not had the EGRs changed. no sign of them going but reading this forum it sounds like the dreaded black smoke day may not be too far away at 70k. Should I change them in anticipation of them going soon or wait a bit longer?
  
Post #899652Tue Feb 21 2012 10:14am
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outofyorkshire
 


Member Since: 27 Apr 2009
Location: Emigrated to Notts
Posts: 283

United Kingdom 2007 Discovery 3 TDV6 SE Auto Zermatt SilverDiscovery 3

I run a 57 with similar mileage...I had one go just before end of 3rd year, so was changed under warranty. Asked Iain (10forcash) Bow down ..he who knows all things d3... a similar question. His advice was 'if it 'aint broke, dont fix it' Laughing as some go , some don't , so my other is still original & still OK.
Now i've said that , it will probably go tomorrow Rolling with laughter

You could always try cleaning them as there are threads on here about cleaning sprays that seem to help
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Post #899679Tue Feb 21 2012 11:26am
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sean 471
 


Member Since: 26 Apr 2011
Location: Sheffield
Posts: 153

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

Thanks
Not so worried if they go when i am in the UK its just i take the caravan to France so dont want to curtail a holiday there.
I think I will change them in the next 12 months.

Are you adapting to life out of Yorks, Rolling with laughter
  
Post #899681Tue Feb 21 2012 11:30am
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M3DPO
 


Member Since: 22 Sep 2010
Location: England
Posts: 275

England 2005 Discovery 3 TDV6 HSE Auto Baltic BlueDiscovery 3

Changing them is no guarantee that they will not fail! If you are so concerned about them failing take two spares with you at least that way should they fail you can get them fitted.
My advise is leave them while they are ok and mix 2 stroke oil (low ash semi synthetic) with diesel at the rate of 200/1, this will clean the soot/carbon/oil deposits off the valves particularly effective on a long high speed run, will also improve starting, economy, lubricate fuel system and make the engine run quiter.
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Post #899717Tue Feb 21 2012 1:03pm
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Bodsy
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Member Since: 06 Nov 2006
Location: In the clubhouse.
Posts: 15631

United Kingdom 2007 Discovery 3 TDV6 HSE Auto Java BlackDiscovery 3

Sean,

I have changed both of mine, (2007) but only because they failed.

I understand your concern, but if they do fail, then you only need to find a garage and have 2 x 2p peices to temporarily block the EGR pipe. This will work fine to get you through your trip with no detrimental effects.

There are other things that I would change before a trip, but EGR valve is not one of them. Thumbs Up
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Post #899720Tue Feb 21 2012 1:08pm
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sean 471
 


Member Since: 26 Apr 2011
Location: Sheffield
Posts: 153

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

Thanks everybody, advice taken i will get familiar with them and if they fail use the 2 p trick.
But perhaps buy some as spares

Cheers Sean
  
Post #899725Tue Feb 21 2012 1:17pm
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sarumlight
 


Member Since: 07 Nov 2008
Location: Where's the snow?
Posts: 643

United Kingdom 2008 Discovery 3 TDV6 HSE Auto Tonga GreenDiscovery 3

If you're going to change anything preventatively I'd put a new intercooler hose on. Mine just went at that age and mileage and gives smoke / engine management lights / horrible performance. Pete Bell sells stronger ones although mine was done on extended warranty so it's just the standard part.
  
Post #899729Tue Feb 21 2012 1:30pm
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outofyorkshire
 


Member Since: 27 Apr 2009
Location: Emigrated to Notts
Posts: 283

United Kingdom 2007 Discovery 3 TDV6 SE Auto Zermatt SilverDiscovery 3

Yup..done that one here too Thumbs Up Intercooler hose is an easy swap & well worth it
Done France in mine 3 times now with it not missing a beat. Will be 4th time this year..there i go tempting fate again Laughing
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Club Uncle Ray Wheel security
Club TLO headrest screens
Club ENT 2nd hand Xenons
Club Wiggs D4 BT Module, full voice upgrade & anything else he could switch on !
Club 10forcash for all things technical
Massey Ferguson 400 FIS AGTV - Arctic Cat by any other name...
Citroen C3 Picasso for SWMBO so we can remember what fuel economy is!! 
 
Post #899983Tue Feb 21 2012 11:24pm
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B16 KJR
 


Member Since: 10 Jul 2006
Location: Rosyth, Fife
Posts: 906

Scotland 2006 Discovery 3 TDV6 S Auto Zermatt SilverDiscovery 3

I blanked mine off despite the fact they were working perfectly well, purely because I have seen first hand the mess they make of an inlet manifold after a few miles. The manifold becomes completly covered in thick black gunk and carbon. In my mind the best way to prevent this is to blank them off, so that only fresh air is drawn through the manifold not a mixture of air and red hot exhaust gas. Shocked
  
Post #900563Thu Feb 23 2012 12:04pm
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zarnd
 


Member Since: 23 Apr 2010
Location: Kent
Posts: 661

United Kingdom 2007 Discovery 3 TDV6 HSE Auto Zermatt SilverDiscovery 3

I would love two EGR valves, alternator, turbo etc...under warranty but who's to say the new ones will last longer than 48k? Nothing broken so going to leave as is and cross everything Laughing

cheers
 Alex

2007 07 Reg D3 TDV6 HSE
2005 54 Reg Mini cooper S
2002 02 Reg BMW M5 - in dry dock
1989 G Reg Golf GTI 
 
Post #900691Thu Feb 23 2012 4:17pm
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