I have noticed that my speedometer indicates a speed of 132Km/h (79mph)when actual speed is 120Km/h (72mph). I know that other users noticed the same problem. Is there a solution to this problem yet? As Infiniti recognized the problem?

G35S M6 2007

 

Take it to any shop and get it recalibrated. The dealer should be able to do this too.

 

I've been asking Infiniti shop since July. They are aware of the problem but do not have a cure yet, they are apparently working on it. My car was in the shop last Thursday and they didn't even tryed to fix the problem.

 

Are you sure it's not reading correctly? 132 vs 120 would also mean that your odometer reading is 10% over and your gas mileage is 10% worse than you think. How did you test the reading?

 

did you upgrade to bigger wheels?

 

Wow.. Mine is dead on accurate I thought they all were. first i heard there was a problem.....

 

I have compared with two different cars in two different occasions and I also compared with GPS reading, I always come to the same conclusion.
According to Infiniti shop, odometer and speedometer have separate readings???



Like I said, Infiniti has acknowledged the problem but seem to be reluctant to publish it yet.

 

No!

Everything OEM.

 

My 07 is off 5 km/h.
If I want to go an actual 100 km/h I have to go an indicated 105 km/h.
This is on OEM size tires.
Checked by GPS.

 

If you do a search on speedometer you will find that the problem goes back to the beginning of the year.

 

Yeah mine is off to. my gps gives 140 km/h but the speedo will be at 152 km/h (12 km/h differece)

If think this was done on purpose to be honest, bmw used to do it all the time. By making the speedo ~10km/h or 6mph opptimistic it tends to keep drivers of sporty cars out of trouble with radar traps (as those are the incriments by which penalties jump) ie in canada in a 100 zone, 120 = $135, 130 = ~$250, 140 = ~$500

Less tickets = happier drivers = more likely to come back since the car didn't make them loose their license or blow their insurance.

Your speedo and gas are not affected as the only difference here is how the servo on the speedo responds to the input from the driveline. The computer interprets the signal on its own basis.

Proof - go highway speeds - go to the cars dash computer --> avg speed mode, set the cruise at the highway speed and reset the computer. Every time the speed will be exact almost with the real one (gps comparison) hence your economy and odo readings are bang on.

Inifiniti is just looking out for you

 

So if I understand you correctly, you are saying that instead of going 10 over the limit in the city I should actually increase my speed to 20 over?

 

haha - thats one way to misinterpret but be careful, these differences may not always be linear, i.e at lower speeds it may only be off by a few points, and that gap often widens at higher speeds which is where on gets into trouble

 

Got me confused

 

Your speed calibration may be set wrong, put the car in diagnostic mode and check it.

Below is a thread on how to get it into the diagnostic mode.

https://g35driver.com/forums/showthr...ght=Diagnostic

If you change it, just be sure and double check your speed with a GPS.

Hope this helps.