It stops the climate control using the Air Con........saves fuel by not having the Air Con pump running. 8)------------------------------
"Ruby"
Rimini Red 06MY TDV6 S
Xenons, Bright Pack, Climate Pack,
BAS Magic Box and Remap
ITG Air Filter
ERG's Blanked (Woody32)
Huge Permagrin
Member Since: 11 May 2006
Location: Off again! :-)
Posts: 72815
Not sure I've ever noticed a difference with the ECON on or off in my D3, tend onjust leave it on.
9th Mar 2017 12:35 pm
Moo D3 Decade
Member Since: 13 Aug 2010
Location: Wiltshire
Posts: 13957
Never used in 12 years New Defender L663 110 SE (known as Noddy!)
Sold Volvo XC90 R-Design (known as Basil)
Sold - D4 HSE (Known as Gerty)
No longer the Old Buses original owner
231,000 miles and counting
05 S manual owned from March 2005
D4 Face lifted
Still original injectors and turbo
V8 Front brakes
BAS Remap, Allisport Intercooler and deCat
EGRs blanked
T-Max split charge
Hanibal Expeedition rack
Prospeed ladder
Duratrac tyres
IID BT
BAS FBH control
9th Mar 2017 12:43 pm
DSL Keeper of the wheelie bin
Member Since: 11 May 2006
Location: Off again! :-)
Posts: 72815
The greenies will be peering at our dashs to see if we are running AC unnecessarily.
9th Mar 2017 12:45 pm
ClassikFan
Member Since: 02 Nov 2016
Location: Surrey
Posts: 1031
As I understand it there is a clutch in the air con pump which when in Eco mode reduces the effort needed to turn it thus saving fuel.
9th Mar 2017 12:56 pm
Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10383
Yeah it turns off the Air Con.
Probably most useful if it's failed making a noise
or if you are very low on fuel.
Can be used in Winter, but the AC should be run now and again
9th Mar 2017 1:16 pm
biskit
Member Since: 23 Dec 2009
Location: in my Mancave.
Posts: 1367
Daughter used the D3 to go to work when it was snowy, she used the econ button! And it did work for the better 8) I've never used it.Mantec sump guard.
Prospeed tree slider/steps.
Flack duel battery system.
18"Compomotive/AT3 tyres
Brembo 4pot front brakes
The A/C pump has no clutch but is a variable displacement, swashplate variety. The econ setting cycles it at 5% to keep the seals moist. Current: Discovery 3 06MY (55 reg) HSE Auto Zambezi Silver Allisport Fast Road Intercooler, V8 Brakes, Silicone IC Hoses, EGRs Blanked, Remapped, De-Cat pipe, FBHIC
Freelander 2 2007 HSE Manual Tambora Flame
Previous: FL2 56 reg SE Manual Black (written off )
Disco 3 06 reg B7S Manual Rimini Red
Disco 2 TD5 Y reg ES Manual Blue - Chipped
Several Discovery 300 TDis
9th Mar 2017 2:24 pm
Sniffer
Member Since: 15 Aug 2015
Location: Tamworth
Posts: 223
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum
ok go on I'll bite... in what way does it affect things ?
Allisport Fast Road Intercooler, V8 Brakes, Silicone IC Hoses, EGRs Blanked, Remapped, De-Cat pipe, FBHIC
