elkarlos
EV Enthusiast
Posts: 25 
LEAF OWNER?: Yes
|
Post by elkarlos on Jan 16, 2015 23:46:59 GMT 11
Hello sparkys, elkarlos here, took delivery of my brand new nissan leaf on thursday the 7th of Jan.
Only problem is, the speedo reads 9ks faster than the vehicle is traveling, messing up my remaining ks and saying the vehicle has travelled alot more ks than it really has, around 9ks extra every 100ks.
Has anyone heard of this problem ? My nissan dealer service manager said they wont fix it as it is within legal limits.
Thought of putting new tyres on, but illegal as larger profile tyres increases the diameter too much.
Any help would be very much appreciated.
Regards
Elkarlos.
|
|
|
|
Post by Feng on Jan 17, 2015 2:07:01 GMT 11
Hello elkarlos, welcome to the forum and congrats on your purchase. The inaccurate speedo is something that's been talked about here before. There's a way to calibrate the speedo slightly. It's not perfect but it helps: ozleaf.proboards.com/post/5286/threadThere's also some talk about larger tires, range and ADR rules in that thread. |
|
|
|
Post by quaternary on Jan 17, 2015 5:45:29 GMT 11
... and saying the vehicle has travelled alot more ks than it really has, around 9ks extra every 100ks. Hi Elkaros, I hope you're enjoying your new leaf! Of all the numbers that the Leaf spits out, in my experience the odometer value is quite accurate when compared against a known distance. In fact, it might be the only number that the Leaf generates that is accurate! The speedo on the other hand is not accurate, but it is precise - ie there is a clear relationship between actual speed and reported speed - about 8% difference in my Leaf - as per the thread in the link that Feng provided. Hope that helps. Mark |
|
|
|
Post by 4wardthinking on Sept 22, 2016 8:23:43 GMT 11
I have to ask this question.
How do you know it is not accurate?.
Secondly the "rules of construction" say there has to be a tolerance that can account for tyre wear & tear keeping the vehicle lower than speed limits, or you could claim against a manufacturer if you insisted you were at a posted speed, yet they proved you were in excess.
|
|
|
|
Post by duncan on Sept 22, 2016 19:55:17 GMT 11
Well, I compared mine to GPS on the phone at a steady speed (flat road, cruise control).
Then I changed the tyre size to make the speedo accurate. Nissan said reading 10% high was fine, so do Australian Design Rules (ADRs) for cars. I disagree.
|
|
|
|
Post by 4wardthinking on Sept 22, 2016 22:52:58 GMT 11
So tyres are a choice of owners, and can change indicated speed.
Now I'm not sure the mobile would be that accurate in reality, I, and many more have proved they are often condition affected.
Even military sat guidance is prone to inaccuracies.
A lot of countries 'allow' a ten percent error at prosecution times, and even laser speed traps/guns are often not that accurate.
I assisted a person a few years back who got "pinged" with one. Simple maths proved the vehicle he was in proved the reading at an angle indicated a higher speed.
The dangerous one is greater rolling circumfrence of tyres, and can drop an owner in all sorts of trouble. Some countries have banned wheel or tyre alterations at test time, and it's stated on the registration document too. I asked at test time, and the 996 cannot be changed legally.
Ten percent is normal low reading/margin, but I certainly wouldn't believe a mobile as being spot on as far as velocity goes.
I feel Nissan are correct on this, as long as the car doesn't use satellite for speed correction.
As far as I'm aware, even satellite speed derivation has a programmed lower than reality indication.
The real up-shot is why does it have to be spot on?, as long as it's below as an 'indication' then I would sit back knowing anything speed related doesn't concern me.
|
|
