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DiscoDan79
Member Since: 07 May 2022
Location: Andover
Posts: 4
  
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Hi everyone,
2007 D3 TDV6 - 180k miles - FSH
It's my daily drive, plenty of motorway miles.
Have owned my lovely TDV6 for 18 months, already spent a bit on it, most recently both belts and oil pump, prop, clutch, flywheel and recon gearbox. It's just failed it's MOT on emissions with an advisory of black smoke under acceleration.
I took it the (great) guys who did the work above who plugged it in and got no fault codes, quick check around for evidence of split hoses or manifolds, nothing to report.
Chucked a bottle of some Diesel cleaner from Halfords (I know) in it and drove round for an hour and got it nice and hot before heading straight for it's retest...it failed again  Looking for some good advice of what to try to solve it please.
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 13th Nov 2023 8:31 pm |
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Brian Considine
Member Since: 05 Dec 2022
Location: Nr Margate
Posts: 281
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Run a couple of tankfuls of "super/premium/advanced" through it (especially, if you tend to use supermarket fuel.
May just do the trick.
The Halfrauds cleaner may not have had enough time/distance to work anyway.
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| 13th Nov 2023 8:47 pm |
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DiscoDan79
Member Since: 07 May 2022
Location: Andover
Posts: 4
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Will try that, did see somewhere that recommended filling up with Shell V-Diesel, thanks mate.
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| 13th Nov 2023 8:59 pm |
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AdamB
Member Since: 18 Jan 2023
Location: Thurrock
Posts: 80
  
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Would also vouch for decent fuel making a difference. I have been using miller's diesel power ecomax which does seem to smooth things out too.
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| 13th Nov 2023 11:34 pm |
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Dave T
Member Since: 03 Jul 2009
Location: Glasgow
Posts: 6902
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has it been remapped? possibly a cause Joined the BMWX5 45e group
1994 Defender 90
2015 RRS Corris Grey/Black roof
2016 D4 Graphite Santorini Black
2012 D4 XS Orkney Grey
2005 D3 S Maya Gold
Convoy for Heroes 2011
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| 14th Nov 2023 1:14 pm |
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DiscoDan79
Member Since: 07 May 2022
Location: Andover
Posts: 4
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Not been remapped to the best of my knowledge. No mention of it from previous owner and no paperwork present to suggest it has been either.
I took it to the MOT place the guy who does my work suggested, ran it through it's emissions and it flew through....twice!
Turns out the EGR's have been blanked, I didn't realise 
Can't get it in there for a full test for 2 weeks though!
Ordered a new intercooler hose yesterday so will fit that and a new air filter in the meantime, doesn't hurt. 
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| 15th Nov 2023 9:44 am |
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Maddpuk
Member Since: 25 Aug 2023
Location: Barnard Castle
Posts: 29
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Hi. Is this telling me that the Halfords additive and/or premium fuel plus more miles made the difference, or were different settings used for the Pass knowing the EGRs are blanked? 2014 Discovery 4 HSE
2013 Insignia Sports Tourer BiTurbo 4x4 SRi
2004 S2000
Honda FourTrax TRX300
- Paul
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| 15th Nov 2023 10:39 am |
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KevinD3
Member Since: 05 Aug 2020
Location: Sutton Coldfield
Posts: 1207
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Wouldn’t be different test setting if the egrs are blanked as it’s an automatic fail if the MOt tester finds them blanked, constitutes tampering  2008 HSE Stornoway Grey
My Wife thinks the D3 is a hobby, The D3 thinks the wife is 💕
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| 15th Nov 2023 12:02 pm |
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HairyFool
Member Since: 04 Jan 2023
Location: Essex
Posts: 526
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I blanked mine some 3 months ago, how anybody thought the amount of gunge I found in the intakes would be a good idea god only knows.
Had its MoT last month, the tester was impressed how low the emissions were for its age/mileage. Just under 10% of the pass limit so little effect from the EGR delete. A visitor from the dark side, my other vehicle is an MG5 EV
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| 15th Nov 2023 8:53 pm |
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Worms
Member Since: 24 Sep 2023
Location: Highlands
Posts: 268
 
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What happens if you use the same garage as your routine LR specialist and as your MOT test centre? They will know if you've got a blanked EGR and duty-bound to fail it when they move it across to the MOT bay. ...Asking for a friend of course! Previously:
2010 FL2 TD4e GS
‘93 Defender 110 200TDi CSW - still got this, non-runner on SORN.
‘87 Defender 90 4 cyl Petrol
‘83 110 CSW V8 - best ever!
Range Rover 2-door V8 (not sure of year - 4-speed box and vacuum diff switch)
Series III SWB Diesel
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| 15th Nov 2023 9:29 pm |
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HairyFool
Member Since: 04 Jan 2023
Location: Essex
Posts: 526
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MoT are not allowed to remove parts to access anything, they just test and measure. One of the reasons most LED lamps are not failed A visitor from the dark side, my other vehicle is an MG5 EV
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| 15th Nov 2023 10:22 pm |
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