Home · FAQ · New Posts · My Posts · PMs · Search · Members · Members Map · Calendar · Profile · Donate · Register · Log In |
Home > General > Speedometer discrepancy? |
|
|
pab Member Since: 28 Aug 2012 Location: Now in Mid-Wales Posts: 2006 |
I've checked my speedo against two different satnavs, and it's within 1-2 mph (depending on speed) of both. So 5kph sounds a little high, but still within permitted limits, I believe. |
||
2nd Mar 2014 12:24 pm |
|
MidlandRover Member Since: 30 Jun 2013 Location: Derby Posts: 496 |
I have used TomTom GPS in various vehicles but not in a Freelander and the speedo has always been optimistic, rather it be that way than reading less than the actual speed. FL2 SD4 Metropolis Auto Santorini Black / ivory completely stock.
|
||
2nd Mar 2014 1:03 pm |
|
Old Goat Member Since: 23 Jan 2014 Location: Correze Posts: 30 |
True enough, but the amount one invests in a vehicle of this marque, one expects near perfection... Chris
|
||
2nd Mar 2014 1:05 pm |
|
EYorkshire Member Since: 18 Nov 2010 Location: (!) Posts: 4392 |
To get the speedometer to read exactly is well within the realms of LR but is set to deliberately read over as in most other cars.
|
||
2nd Mar 2014 2:18 pm |
|
Iliacus Member Since: 24 Jan 2014 Location: Herefordshire Posts: 256 |
With my old GS the speedo read 70mph when my Garmin showed 68mph which is pretty close. I would expect the car to read slightly over the actual speed for the reasons EYorkshire states.
|
||
2nd Mar 2014 3:19 pm |
|
chicken george Member Since: 05 Dec 2007 Location: N. Yorks Posts: 13289 |
my fl2 was with in 1 mph both before and after I changed from 17 to 18 inch wheels. are you on different tyres?
|
||
2nd Mar 2014 4:02 pm |
|
unciepaul68 Member Since: 28 Jun 2013 Location: Peterborough Posts: 67 |
LR speed 32, GPS speed 30
|
||
2nd Mar 2014 4:53 pm |
|
Old Goat Member Since: 23 Jan 2014 Location: Correze Posts: 30 |
I accept that, but the point I make is that the Suzuki is spot-on, and the radar speed detectors accompanying the roadside displays, always agree with the GPS cameras, in either vehicle. It would be useful if they all sang from the same hymnsheet.
|
||
2nd Mar 2014 4:58 pm |
|
rt Member Since: 20 Jul 2010 Location: Stockton Posts: 46 |
My 07 GS and 10 GS speedos agreed with the sat nav but the 13 GS is approx 3 mph fast at 70. |
||
2nd Mar 2014 7:09 pm |
|
MartinP Member Since: 14 Feb 2014 Location: Berkshire Posts: 95 |
My FL2 reads about 4mph high at 70mph compared with my TomTom. My old Defender, my wife's Mini Cooper and her previous Audi all had similar discrepancies.
|
||
2nd Mar 2014 7:25 pm |
|
flycop2000 Member Since: 16 Jul 2008 Location: Scotland Posts: 282 |
As far as I can recall, speedometers have a tolerance of 10% When you get stopped for speeding, you wont be prosecuted at 31mph in a 30mph limit to allow for inaccuracies. In most places its speed + 10% + 3mph, this ensures you are defiantly exceeding the limit. |
||
2nd Mar 2014 8:58 pm |
|
wdw Member Since: 13 Oct 2008 Location: Reading Posts: 127 |
My 08 XS speedo was pretty close to spot on but my 14 XS speedo over-reads by by more than 5% compared to the Tom-Tom. 74mph on the Freelander speedo equates to 70mph on the Tom-Tom.
|
||
2nd Mar 2014 9:10 pm |
|
choccymonster Member Since: 27 Sep 2013 Location: Chichester, West Sussex Posts: 513 |
This is guidance, not definitive law. You can be prosecuted for exceeding the speed limit by as little as 1mph - however ACPO guidelines SUGGEST that there be certain allowances made for speedo inaccuracies. Off topic, I realise, but just wanted to be clear. 10% + 2mph is, I believe, the generally accepted guidance upon which a decision to prosecute might be based - however, it is not the law, and should not be relied upon. You CAN be prosecuted for as little as 1mph over the limit. Hence, I guess, why it is illegal for a speedo to under read, but OK for it to over read (within tolerance). Back on topic; 5kph overread on the FL speedo is perfectly acceptable and well within tolerance - the fact that the Suzuki happened to read spot on is just lucky. I suspect if you put the GPS in another Suzuki it would differ again from the OP's. |
||
2nd Mar 2014 11:50 pm |
|
Olly SD4 HSE Member Since: 15 Jan 2014 Location: Middle of a field Posts: 9 |
I doubt if either are more than 98% accurate.
|
||
3rd Mar 2014 1:44 pm |
|
|
All times are GMT |
< Previous Topic | Next Topic > |
Posting Rules
|
Site Copyright © 2006-2024 Futuranet Ltd & Martin Lewis