| chigirl1216 |
Hi all :cool:
Got a new 08 MDX w/ tech package on 01/31/08. Had my car for about 3 weeks and have noticed that the speedometer is not registering correctly at higher speeds.
I am normally a city driver, so I didn't notice it much but my husband took the car for work one day(to get some highway driving miles on it) and noticed people were whizzing by him when we has going 75mph(when they don't normally)
So ok we just chalked it up to speedy drivers that day, this weekend I had it out and when minivans & grandpas are passing me when it says I am going 80mph...something isn't right.
We went out early Sunday morning for testing against my husbands car. Sure enough, above 55mph the speed differences started to creep and it was like the faster you went, the larger the discrepancy.
I am going to talk to the dealer today, but just wondering if anyone had any insight |
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| Squishy |
| As far as I know only emergency vehicles get calibrated speedometers. Us regular people can have speedometers that are off by 3% to as much as 5%, depending on manufacturer tolerances. I seem to remember Honda having trouble in the past with over-reporting speedometers and odometers; a legal case or at least some media coverage about possible "loss of value" issues from over-reported mileage. |
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| chigirl1216 |
quote:
Originally posted by Squishy
about possible "loss of value" issues from over-reported mileage.
this is what i am concerned about, i know how far it is to/from work and what my weekly mileage should be approx....and it seems like the miles are adding on WAY faster
so in the end - warranty expires sooner, resale value is less, etc..
I had a CL before this and had absolutely no problems, I consider myself to be a teeny bit of a speeder but now I have people giving me dirty looks like I am driving too slow for them :rolleyes: I usually just go with the flow and keep up, but if my speedometer reads 85-90mph...well I definitely don't wouldn't want to be clocked at that ;) |
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| Squishy |
| Assuming it's the typical +5-10 crowd, your speedometer seems to be reading more than 5% over. There should be both a federal requirement and a manufacturer standard for speedometer errors, and I think the federal one is around 5%. I'll see if I can dig up any sources. |
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| chigirl1216 |
quote:
Originally posted by Squishy
Assuming it's the typical +5-10 crowd, your speedometer seems to be reading more than 5% over. There should be both a federal requirement and a manufacturer standard for speedometer errors, and I think the federal one is around 5%. I'll see if I can dig up any sources.
Based on calculations it seems to be around 8% - we thought maybe the car originally had 19" on it(dealer trader) and they didn't recalibrate when they put the OEM tires on, but calling around the tire size circumference is only about a 1% difference so I don't know if that helps any.
Our SA gets in later this afternoon so we will see what he has to say.. |
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| Squishy |
I wasn't really able to dig up the federal standard, and, not being familiar with American standards, I don't know which federal act would regulate speedometer readouts. FMVSS didn't seem to have it, although Wikipedia confirmed my +-5% number without citing any sources (the ONE time I actually DO want a citation!).
However, I did find this PDF of Honda's class action suit settlement, claiming that Honda's tolerance standards were changed to +-2.5% for 2007 vehicles. One could reasonably assume that the same tolerance carried on to 2008 vehicles.
quote:
WHEREAS, during the course of the Vaughn Action, Honda changed its odometer tolerance standard for 2007 automobiles (except for the 2007 Honda Fit), from -1% to +3.75% to -2.5% to +2.5%, and acknowledges that the facts discovered as a result of that Action were a contributing cause of Honda's decision to change the standard;
http://www.odosettlementinfo.com/Va...20Agreement.pdf (page 3)
If you have the standard tire size and brand, the tolerance should fall within Honda's standards. There are aftermarket tire sizes that could show the same size markings (e.g., 235/70R17) but be slightly different in circumference, but none that I know of that would throw your speedometer off by that much. Off-road style tires have the most deviations from standard size, and even they are somewhere around 2% off at the most. |
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| G. COLTON |
Just because your speedometer is incorrect does not mean that the odometer is also incorrect. Do you have navigation on this MDX?
If not do you have a friend with a portable GPS?
A GPS is the best way to check both the speedometer and the odometer.
Regardless, this MDX is under warranty and it should not be difficult for the dealer to determine.
G |
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