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Euro IV emissions & the 2007 model engine mystery
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randalls
 


Member Since: 02 Mar 2006
Location: aberdeenshire
Posts: 703

Scotland 2007 Discovery 3 TDV6 HSE Auto Zambezi SilverDiscovery 3
Euro IV emissions & the 2007 model engine mystery

I have seen quite a few posts now referring to the Euro IV emissions regs and the new compliance of the D3 MY 2007 TdV6 engine. Making it a different beast to the previous engine in terms of noise & some say power as well. I cetainly notice much better MPG than previous engines.

However It can't be right about the engine change - because these IV emissions were introduced in 2005 http://en.wikipedia.org/wiki/Euro_IV So surely from 2005 the D3 had to comply.

The 2007 engine is definately different & noiser than previous versions - I know by experience & comments here......

But it's not to do with Euro IV - so can anybody enlighten me or did I miss something? Bow downSheep 2007 TDV6 HSE 'Silver Lady'. With 'free' privacy glass LOL.
Taking the greenpi$$ is: Green taxing your citizens more & using some of the money to buy nukes.Bow downSheep  
Post #1460205th Apr 2007 8:06 pm
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zig
 


Member Since: 09 Sep 2005
Location: Scotland
Posts: 619

United Kingdom 2006 Discovery 3 TDV6 SE Auto Bonatti GreyDiscovery 3

Introduction of the Euro IV was only compulsory for some vehicles from 1st January 2005 and was only fully effective from 1st January 2007. See http://www.vcacarfueldata.org.uk/informati...esting.asp and for the actual EC directive see http://europa.eu.int/eur-lex/pri/en/oj/dat...010056.pdf if you search for 2007 in this pdf file it will take you to the paragraph in question.  
Post #1460295th Apr 2007 8:56 pm
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randalls
 


Member Since: 02 Mar 2006
Location: aberdeenshire
Posts: 703

Scotland 2007 Discovery 3 TDV6 HSE Auto Zambezi SilverDiscovery 3

So I think Land Rover are doing pretty well to meet these emission requirements - never ever seen anything in the press about these current IV requirements - these seem pretty stringent to me..... Bow downSheep 2007 TDV6 HSE 'Silver Lady'. With 'free' privacy glass LOL.
Taking the greenpi$$ is: Green taxing your citizens more & using some of the money to buy nukes.Bow downSheep  
Post #1460425th Apr 2007 9:28 pm
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10forcash
 


Member Since: 09 Jun 2005
Location: Ubique
Posts: 16534

United Kingdom 2007 Discovery 3 TDV6 HSE Manual Zermatt SilverDiscovery 3

The core engine is the same - it was designed with EU-IV in mind, LR didn't have time to get the full compliance in place for the launch.
The main difference is the fuel rail pressure, injectors, EGR system and fuel mapping  
Post #1460455th Apr 2007 9:31 pm
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randalls
 


Member Since: 02 Mar 2006
Location: aberdeenshire
Posts: 703

Scotland 2007 Discovery 3 TDV6 HSE Auto Zambezi SilverDiscovery 3

10forcash,

Are you able to unpack any of that further ? Razz Bow downSheep 2007 TDV6 HSE 'Silver Lady'. With 'free' privacy glass LOL.
Taking the greenpi$$ is: Green taxing your citizens more & using some of the money to buy nukes.Bow downSheep  
Post #1460525th Apr 2007 9:44 pm
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10forcash
 


Member Since: 09 Jun 2005
Location: Ubique
Posts: 16534

United Kingdom 2007 Discovery 3 TDV6 HSE Manual Zermatt SilverDiscovery 3

Sorry, wasn't too clear Embarassed the fuel rail pressure is increased but the injector duration is decreased, the increase in pressure gives better atomisation, therefore a cleaner burn
The EGR system now includes temperature sensors to make it 'adaptive' to the engine temperature and therefore optimises EGR use dependent upon warm-up and 'normal' operating temperature. The injector pulse also cuts out upon throttle release to prevent 'overrun' fuelling  
Post #1460565th Apr 2007 9:49 pm
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90BHP
 


Member Since: 18 Oct 2006
Location: Half way along the road on the right
Posts: 3706

United Kingdom 2009 Discovery 3 TDV6 XS Auto Stornoway GreyDiscovery 3

so unlike my Cooper S or Kawasaki ZX6 it doesn't pop and flame on the over-run Wink "To finish first, one first has to finish ...."  
Post #1460715th Apr 2007 10:12 pm
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10forcash
 


Member Since: 09 Jun 2005
Location: Ubique
Posts: 16534

United Kingdom 2007 Discovery 3 TDV6 HSE Manual Zermatt SilverDiscovery 3

Laughing Laughing Laughing  
Post #1460755th Apr 2007 10:14 pm
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randalls
 


Member Since: 02 Mar 2006
Location: aberdeenshire
Posts: 703

Scotland 2007 Discovery 3 TDV6 HSE Auto Zambezi SilverDiscovery 3

thanks for the info, that seems to be also translating into better fuel economy. Bow downSheep 2007 TDV6 HSE 'Silver Lady'. With 'free' privacy glass LOL.
Taking the greenpi$$ is: Green taxing your citizens more & using some of the money to buy nukes.Bow downSheep  
Post #1461396th Apr 2007 10:39 am
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LRtuning
 


Member Since: 22 Feb 2005
Location: AUSTRALIA + UK
Posts: 468

2006 Discovery 3 TDV6 SE Auto Adriatic BlueDiscovery 3

Dont forget the particulate filters that being fiited to several makes of vehicle now to make cars Euro IV compliant :-0) Money talks.Sex sells.Mud sticks.Time flys. Censored happens.People talk.Impressions last!  
Post #1461646th Apr 2007 4:14 pm
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