Member Since: 04 May 2007
Location: Barcelona
Posts: 4317
Ahh....got ya
So this means that EGRs probably weren't necessary to comply with EURO III, but they are definitely needed for EURO IV compliance.
This could be why they need to produce fault messages if they fail on a EURO IV (>= MY07) engine.
Thanks,
Paul2006 Discovery 3 TDV6 SE AutoBuckingham Blue 2007 Golf GT DSG
4th Nov 2009 1:32 pm
Fish
Member Since: 21 Oct 2007
Location: Ashbourne, Derbyshire
Posts: 78
Yep as I understand it I can't remove the actual EGR Valve from 07MY> as the ECU will fault. I believe Pete at BAS is working on a plug in connector to fool the ECU into thinking they are still there.
4th Nov 2009 1:47 pm
BrumLee
Member Since: 07 Mar 2008
Location: West Midlands
Posts: 1360
Has anyone successfully removed and cleaned the EGR valves. I've done it on other vehicles and it's cleared fault codes but as the D3's valves are less accessible I'm wondering if its worth the trouble
4th Nov 2009 5:20 pm
al cope
Member Since: 08 Nov 2005
Location: Oldbury, WM
Posts: 10299
Didnt shinymoose take one appart?
On my 55 plate one, i didnt remove the EGR's, just blanked them off, and then took the link out from the butterfly actuator and fixed the butterfly open, so all the electrickery still worked, just didnt do anything, so therefore even on a later model, shouldnt throw up any faults.
AlVolvo XC90 B5 Plus Dark
Gone - MY18 D5 HSE - Corris on 22's with Black Pack
Now gone - MY16 D4 SE Tech, Loire Blue, Almond Leather, Privacy, plus some other goodies.
Old - MY12 D4 SDV6 XS Auto - Ipanema Sand with Almond Leather - Plus other niceties, and D4.com sticker
Older - D3 TDV6 XS Auto - Lugano Teal with Almond Leather, 20" Stormers, Shiny Tailpipes, DVD/TV - and obligatory D3 sticker
Ancient - D3 TDV6 S - Tonga with Ebony, 20" Stormers, satnav & DVD
4th Nov 2009 5:24 pm
BrumLee
Member Since: 07 Mar 2008
Location: West Midlands
Posts: 1360
al cope wrote:
Didnt shinymoose take one appart?
I know Disco_Mikey opened a couple up but they were 'd
4th Nov 2009 5:35 pm
Archeci
Member Since: 17 Jul 2009
Location: East Yorkshire
Posts: 558
After having mine changed last week I was told by the dealer that one of them was stuck open.
LeeTonga Green TDV6 S
Remember laughing or smiling confuses the management.
4th Nov 2009 8:08 pm
al cope
Member Since: 08 Nov 2005
Location: Oldbury, WM
Posts: 10299
Lee - thats the problem, as when they are stuck open all the exhaust crap is recirculated back into the inlet tract - you wouldnt know if they were stuck shut.
AlVolvo XC90 B5 Plus Dark
Gone - MY18 D5 HSE - Corris on 22's with Black Pack
Now gone - MY16 D4 SE Tech, Loire Blue, Almond Leather, Privacy, plus some other goodies.
Old - MY12 D4 SDV6 XS Auto - Ipanema Sand with Almond Leather - Plus other niceties, and D4.com sticker
Older - D3 TDV6 XS Auto - Lugano Teal with Almond Leather, 20" Stormers, Shiny Tailpipes, DVD/TV - and obligatory D3 sticker
Ancient - D3 TDV6 S - Tonga with Ebony, 20" Stormers, satnav & DVD
It seems the problem isn't that they get coked up with carbon, but more likely due to corrosion and or bearing failure. On the back of the EGR valve assembly there's a position sensor, so the ECU will record a fault if the position doesn't match where it's supposed to be. IIRC, on 07MY onwards this will cause the ECU light to come on, but not on earlier vehicles.Previously:
2005 D3 2.7 TDV6 S
1984 90 2.25 Petrol CSW
1992 90 200TDi Hard Top
1995 Discovery ES 300TDi
2003 90 TD5 Truck Cab
5th Nov 2009 2:12 am
Disco_Mikey
Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20732
ridgeback_moor wrote:
IIRC, on 07MY onwards this will cause the ECU light to come on, but not on earlier vehicles.
What he said. All EU4 engines legally must have the EML come on if there is a fault with the emission control system My D3 Build Thread
Member Since: 07 Mar 2008
Location: West Midlands
Posts: 1360
ridgeback_moor wrote:
It was me that stripped a couple of failed valves down, in this thread..
Sorry ridgeback_moor I knew Mikey was involved somewhere in the process
5th Nov 2009 4:06 pm
Archeci
Member Since: 17 Jul 2009
Location: East Yorkshire
Posts: 558
Rich is there any update as to how you got on at Bells today with the car?
LeeTonga Green TDV6 S
Remember laughing or smiling confuses the management.
5th Nov 2009 4:15 pm
rich_959
Member Since: 12 Jan 2009
Location: East Yorkshire
Posts: 105
EGR's were definitely faulty - now blanked. Seperate issue was an intercooler hose which had de-laminated internally and was sapping power. All now corrected by Bell Autos and running like a dream! See seperate post here....
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'd 
I knew Mikey was involved somewhere in the process 
