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Odometer accuracy
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kenny
 


Member Since: 17 Jan 2010
Location: South West Aus
Posts: 79

Australia 2011 Discovery 4 3.0 TDV6 SE Auto Siberian SilverDiscovery 4

If the speedo reads above the actuall speed, as has been posted on other threads that too would mean the odometer was wrong... Would it not?

In which case your fuel economy would be evn worse than you calculate!!

Anyhow I get an avaerage of 10.5 l/100km on the computor and when I do the sums manually I get 11.2 l/100
  
Post #61785510th Mar 2010 12:09 am
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Bushwanderer
 


Member Since: 27 Nov 2007
Location: Northern Rivers, NSW, Australia
Posts: 2050

Australia 2005 Discovery 3 TDV6 S Manual Buckingham BlueDiscovery 3

Hi Kenny,
Not necessarily. Speedos are universally set high to allow a tolerance that regulations require (IIRC 0 to +3%).

There is no reason for the odometer to not be accurate.

Best Wishes,
Peter
 The Bearded Dragon  
Post #61787210th Mar 2010 3:26 am
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DingMark
 


Member Since: 14 Sep 2007
Location: Perth Oz or Erbil, Iraq
Posts: 388

Iraq 2010 Discovery 4 3.0 TDV6 HSE Auto Ipanema SandDiscovery 4

I concur with Peter's statement. A couple of times I tested my odometer, speedometer, and GPS's recorded speed with a section of km markers on a new freeway south of Perth. The odometer and GPS recorded speed exactly corresponded to the roadside km markers, while the speedometer read about 4% high. As odd at is seems, LR have deliberately done this as they're required to conform to the laws, which in this case are intended to prevent the defense of, "But officer, I was doing the speed limit on my speedometer! It musta been the new MTRs I put on my D3."
 Jim Dowell - D4 HSE TDi, 12,000 hydraulic winch & hidden winch mount, MTRs, TyreDog, Traxide 2 x aux battery system, fixed air compressor, Dolium roof rack, MitchHitch.
RIP 2005 D3 HSE V8 5 seater gold (stolen and torched) 
 
Post #61787610th Mar 2010 4:07 am
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pavol
 


Member Since: 02 Mar 2010
Location: Poprad
Posts: 31

Slovakia 

I don´t think it is only LR, this seems to be a common practice of car manufacturers.
  
Post #61836710th Mar 2010 8:42 pm
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Discotres
 


Member Since: 25 Jan 2010
Location: London
Posts: 8491

Scotland 2009 Discovery 3 TDV6 GS Manual Stornoway GreyDiscovery 3

Wrong sized tyres would affect the odometer and speedo Wink

There is a good calculator here : http://www.kouki.co.uk/utilities/visual-tyre-size-calculator
  
Post #61837510th Mar 2010 8:49 pm
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Bushwanderer
 


Member Since: 27 Nov 2007
Location: Northern Rivers, NSW, Australia
Posts: 2050

Australia 2005 Discovery 3 TDV6 S Manual Buckingham BlueDiscovery 3

Hi Dt,
Of course you are right, but the consideration here was for a D4 with standard tyres.

Best Wishes,
Peter
 The Bearded Dragon  
Post #61869711th Mar 2010 1:47 am
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