EpicEvo
Posts: 205
Joined: Jul 2012
Location: Uk Stevenage
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Does the car know what wheels you have?
As in 18's, 19's or 20's...
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| 23-09-2012 01:59am |
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Izzy
Posts: 27
Joined: Sep 2012
Location: USA
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RE: Does the car know what wheels you have?
Simple answer is no. That is why if you don't stick to recommended tire size, the speedo will be off.
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| 23-09-2012 02:46am |
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DiscoDad
Posts: 66
Joined: Jan 2011
Location: South Yorkshire
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RE: Does the car know what wheels you have?
As I understand it, the rolling cercumference of the wheels is input to the config file so that the speedo can read correctly. This obviously depends on which wheel/tyre size combination the car is wearing.
Ordered 3-4-2012 - Build date 27-6-2012 - Delivery expected 9-7-2012 - Actual delivery 29-6-2012
SD4 Auto Dynamic, Orkney Grey with black pano roof, style 7 wheels, lux pack, verve interior, ebony headlining, privacy glass, adaptive xenons, heated steering wheel, load retension system.
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| 23-09-2012 05:23pm |
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smayo
Posts: 188
Joined: Feb 2012
Location: Birmingham
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RE: Does the car know what wheels you have?
(23-09-2012 05:23pm)DiscoDad Wrote: As I understand it, the rolling cercumference of the wheels is input to the config file so that the speedo can read correctly.
True it will be in the software, BUT, the circumference of all the factory fitted wheels/tyres is the same.
Ordered 17/2/12 Dynamic SD4 Auto 5dr, Mauritius Blue, Pan roof, 20" style 6 (gloss black), Vortex, Ebony Headlining, Ent Pack, Heated St. Wheel, Homelink, Pr Glass, Auto Dim r.view mirror, spare wheel
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| 23-09-2012 09:20pm |
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XFullFatTim
Bat wielding forum enforcer
Posts: 9,295
Joined: Oct 2010
Location: Somewhere between here and there.
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RE: Does the car know what wheels you have?
Strange but true - doesn't matter if you have 17" wheels or 20" wheels the aspect ratio (sidewall height) of the various tyres is what makes them all the same rolling radius
A Pangea Green New Defender 110 First Edition is now sitting on my drive alongside British Racing Green Electric Mini Cooper SE Level 3. After 21 years in my hands my TDI300 90 was handed on to the next custodian on 15 July 2022.
(This post was last modified: 23-09-2012 10:08pm by XFullFatTim.)
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| 23-09-2012 10:07pm |
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x5pea
Posts: 108
Joined: Apr 2011
Location: Glasgow
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RE: Does the car know what wheels you have?
if you change ur wheels, don't let it look in a mirror or see its reflection in a shop window for goodness sake
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| 23-09-2012 10:20pm |
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exigejoe
Posts: 287
Joined: Oct 2011
Location: Tacoma/Fircrest, WA
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RE: Does the car know what wheels you have?
just use a tire/wheel calculator and try to get the wheel size you want and search for tires that fit oem specs. If you get them close enough the spedo will be off +/- 1-2mph or km.
Lotus Exige (aspen white) with VF supercharger kit, 413hp, 366lb/ft
Range Rover Evoque in fuji white and almond/espresso interior
2013 Audi A7 3.0T supercharged
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| 24-09-2012 04:52pm |
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EpicEvo
Posts: 205
Joined: Jul 2012
Location: Uk Stevenage
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Does the car know what wheels you have?
Thanks a lot guys  question answered I would say
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| 24-09-2012 05:11pm |
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Does the car know what wheels you have?
