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MELISCAT
Member Since: 17 Dec 2009
Location: Macclesfield, Cheshire
Posts: 132
  
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Just been having issues with the D3's EGR's that were replaced at 45,000 mile - car has now done 80,000 miles and they have started playing up again. Still have the old set, so decided to clean them up and see if they would work again. Used Wyns EGR cleaning spray (Halfords) and my trusty Dremel tool. They have cleaned up really well.
Took the solenoids off both valves to check for free movement of the valve and solenoid actuator - no problems.
The only issue is that one of the o-ring seals on one of the solenoid is way over size. It is red in appearance but I am not sure what material it is made of. There is also a green o-ring on each solenoid but they are in good condition.
The question is does anyone know what material the o-rings are likely to be made from?
Any help would be appreciated  Mike
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 5th May 2016 10:17 pm |
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Bodsy
Site Sponsor
Member Since: 06 Nov 2006
Location: In the Clubhouse
Posts: 21361
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Just blank them and be done with it.  Bodsys Brake Bible
D4/D3 Remote FBH heat kits
BAS Remaps/ EGR Blank
Transmission Flush
Software updates/enabling
Clock/ SNOTM /3Flash / 4x4Info /BT Update /Service Reset/Error Codes / Gearbox Reset
See It Here
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| 5th May 2016 11:43 pm |
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BBB
Member Since: 01 Apr 2015
Location: Chester
Posts: 269
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I'll second that There is no I in team, but there are five in Individual Brilliance
Disco gone, emigrated to a VW Amarok
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| 6th May 2016 8:56 am |
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MELISCAT
Member Since: 17 Dec 2009
Location: Macclesfield, Cheshire
Posts: 132
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Thanks for your input, but not as simple as just blanking them off on a 2008 Euro IV model, also requires software patch and anyway if I can obtain the correct seal then I will have a fully serviceable pair of valves for a couple of £'s. Mike
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| 6th May 2016 5:43 pm |
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BBB
Member Since: 01 Apr 2015
Location: Chester
Posts: 269
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a couple of quid and be short of quite a bit of skin on your knuckles and still be recirculating crud through your engine and still have the worry of the valves failing and knowing they will fail in less than another 40K.
Having the v/vs blanked also makes a noticeable difference when the car pulls off
But at the end of the day......your call  There is no I in team, but there are five in Individual Brilliance
Disco gone, emigrated to a VW Amarok
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| 6th May 2016 5:51 pm |
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geoff.
Member Since: 24 Jan 2010
Location: West kent
Posts: 8531
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MELISCAT wrote:Thanks for your input, but not as simple as just blanking them off on a 2008 Euro IV model, also requires software patch and anyway if I can obtain the correct seal then I will have a fully serviceable pair of valves for a couple of £'s.
good luck
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| 6th May 2016 8:20 pm |
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Ncallan
Member Since: 15 Sep 2018
Location: Tipperary
Posts: 53
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Bodsy wrote:Just blank them and be done with it.
How does one go about blanking them ?
And what exactly does the EGR do ?
It’s obviously not crucial to the running of the engine if the can be blanked .
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| 16th Feb 2019 8:47 pm |
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sputnixb51
Member Since: 23 Apr 2013
Location: Morayshire
Posts: 833
  
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Red “O” rings in my experience have always been made of Silicone, rather than nitriles or rubber composites. Can’t help you with sourcing them though.
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| 16th Feb 2019 9:40 pm |
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lynalldiscovery
Member Since: 22 Dec 2009
Location: Maidstone
Posts: 7274
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Ive replaced red silicone o rings on trucks with std black ones as thats all we had, how long they will last I havent a clue but the red ones didnt last long either!
Edit, just looked on ebay, search for silicone exhaust o rings
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| 17th Feb 2019 7:19 am |
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Maxime
Member Since: 12 Apr 2019
Location: Trier
Posts: 35
 
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...do you have some pictures to show how to Access the EGR valves to be able to clean them? Would be interested in doing that...
Thanks a lot!
Best
Maxime
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| 16th May 2019 1:19 pm |
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MELISCAT
Member Since: 17 Dec 2009
Location: Macclesfield, Cheshire
Posts: 132
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Sorry I don't have any images for the EGR's. The Haynes Workshop manual for the D3 has the full removal procedure for them. Once out they are very easy to strip down and clean.
Mike Mike
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| 16th May 2019 6:59 pm |
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Maxime
Member Since: 12 Apr 2019
Location: Trier
Posts: 35
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thanks for reminding me I have this book 
Best
Maxime
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| 16th May 2019 7:50 pm |
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