I've read so many posts now about the egr delete that it almost seems a no brainer ! Very few have said oh leave it in , engine's designed for them ... my rr sport tdv8 2007

Hi Martyns, you may be better off posting this on the dedicated RR Sport forum https://www.rrsport.co.uk/forum/ 2011 TDV8 Vogue SE

The majority of people running Range Rovers don't even know what an EGR is let alone how and why to delete it. Geoff

Thanks , reposted there

supershuttle wrote:

The majority of people running Range Rovers don't even know what an EGR is let alone how and why to delete it.

Geoff, because you mentioned it, I now have to ask it

What is an EGR, and why would I be interested in deleting it?



Full disclosure - I genuinely don't know what one is - I'd good with electrics and computers, but I avoid plumbing and oily spanners  Current
Vogue SE 4.4 SDV8
Previous highlights
Many Mini's!
Audi S8
Audi A6 Avant (the petrol guzzling Bi-turbo)
Subaru H6 3.0 Estate
Peugeot 406 Coupe V6
Audi 80 Quattro Sport

Exhaust Gas Recirculation.

Takes your exhaust gas and passes it back through the engine. Supposed to reduce emissions but puts a load of cra9 back into the engine. Sooting up and oiling up of the various parts.
 John
2008 Stornoway Grey 3.6 Tdv8 Vogue
2005 TD6 Java Black Vogue - Written off!!
GAP iiD BT
2003 Discovery TD5 Auto, Nanocom Evolution - gone to a new home!
MasseyFerguson 152 - No electronics!! - Sold

Exhaust Gas Recirculation ( Goes back into the inlet again to be burnt )

Snap

Thank you both

To me, this sounds like EGR is a hack to get around emissions?

Does the removal of it impact the emissions any, especially come MOT time??

Sorry - what I should really do is now go away and google it to read up... Current
Vogue SE 4.4 SDV8
Previous highlights
Many Mini's!
Audi S8
Audi A6 Avant (the petrol guzzling Bi-turbo)
Subaru H6 3.0 Estate
Peugeot 406 Coupe V6
Audi 80 Quattro Sport

An EGR valve rerouted inert gases from the exhaust back into the engine’s intake, whenever sensors and the ECU deem it necessary, to reduce combustion chamber temperatures. While it seems counter intuitive to do this, high combustion chamber temperatures lead to both substantially increased NOx emissions (NOx is very nasty for those poor sods that have to breath the stuff) and increased thermal stress and wear on exposed engine components. The fact that city NOx levels are not coming down as they should be (partly thanks to some people disabling emissions control systems) brings ever tighter emissions controls down on us all and they have played some part in bringing forward the ultimate banning of Diesel engines.
It is illegal to use a car on the road with EGR valves disabled and is an MoT failure point. Those that do it have to rely on concealing what they have done from MoT testers.
If your EGR valves are working as they should, please leave them to get on with their thing