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MOT Smoke Test
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djcleckie
 


Member Since: 08 Feb 2010
Location: Highlands
Posts: 189

Scotland 2005 Discovery 3 TDV6 SE Manual Cairns BlueDiscovery 3
MOT Smoke Test

Have just passed MOT.

Last year the smoke reading was 0.79.
This year it is 0.19

(pass limit 1.5)

Same garage and same serial number on the smoke test machine.

Only difference in the Disco is that the EGR valves have been blanked but I can't see this making such a huge improvement.

Anyway the change is for the better.

What sort of readings are other people getting?


Dave 2005 SE Manual Cairns Blue
Faultmate MSV2
Series 2 - long gone
RR Classic long gone.
Disco1 believe its still going as a farm vehicle in France. 

Last edited by djcleckie on 14th Jun 2013 11:00 am. Edited 1 time in total 
Post #111702414th Jun 2013 10:48 am
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Disco_Mikey
 


Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20732

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

I removed my EGR's all together, and passed at 0.20 Thumbs Up My D3 Build Thread

TDV8 Retrofit Build Thread  
Post #111702614th Jun 2013 10:48 am
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M3DPO
 


Member Since: 22 Sep 2010
Location: Notts.
Posts: 8106

England 2014 Discovery 4 3.0 SDV6 HSE Lux Auto Corris GreyDiscovery 4

On my first MOT after blanking the EGR's 3 years ago the tester commented the exhaust readings where the lowest on any vehicle he had tested Thumbs Up but yet we still pay excessive amounts of road tax because emissions are high Sad I just don't understand it. It can when others can't,
It will when others won't,
It goes where others don't.  
Post #111705114th Jun 2013 12:13 pm
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djcleckie
 


Member Since: 08 Feb 2010
Location: Highlands
Posts: 189

Scotland 2005 Discovery 3 TDV6 SE Manual Cairns BlueDiscovery 3

Hi

The road tax bracket is based on other emmision gases and not the smoke particulate which is all that the MOT checks. Theoretically blanking the EGR valves should raise the level of emmisions for the other gases but these are not tested during the MOT.


I read somewhere on this board that a LR dealer told a D3 owner that blanking the EGR valves would make it fail its emmisions test!!!! What a load of 'Censored' rubbish.

Does a blanked D3 still meet the Euro 3 (or 4) standard? I don't know and I don't really care!

Cheers

Dave 2005 SE Manual Cairns Blue
Faultmate MSV2
Series 2 - long gone
RR Classic long gone.
Disco1 believe its still going as a farm vehicle in France.  
Post #111705414th Jun 2013 12:26 pm
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blue200tdi
 


Member Since: 23 Sep 2012
Location: Lincoln
Posts: 1094

England 2006 Discovery 3 TDV6 HSE Auto Java BlackDiscovery 3

Mine was the same as Mikey's with the EGR's removed Thumbs Up

I was a bit Shocked when I took it in but on reading the pass paperwork was very pleasantly surprised. Very Happy You guys are gonna be busier than a test bench in a plunger factory!
Java black 2006 2.7 TDV6 HSE AUTO.
2014 Kawasaki ZZR1400 Performance sport.  
Post #111725814th Jun 2013 8:02 pm
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djcleckie
 


Member Since: 08 Feb 2010
Location: Highlands
Posts: 189

Scotland 2005 Discovery 3 TDV6 SE Manual Cairns BlueDiscovery 3

Well just passed my MOT an hour ago.
EGR's blanked but pipes refitted.

Below are my smoke test results over the last few years same garage, same tester, same test machine.

2015 0.32
2016 0.96
2017 1.48
2018 0.62

It is a 2005 D3 and these days only does about 3000 miles/year and is currently at 85000 miles.
I was getting a little concerned about the figures going up year on year so this year before MOT I filled her up with BP's "Ultimate Diesel" instead of the usual "Morrisons" supermarket diesel.

Look how the figures have dropped!
Comments?

Dave 2005 SE Manual Cairns Blue
Faultmate MSV2
Series 2 - long gone
RR Classic long gone.
Disco1 believe its still going as a farm vehicle in France.  
Post #19606116th Jul 2018 11:32 am
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