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BMW 3-Series (E90 E92) Forum
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Speedometer slightly off??
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08-07-2013, 05:08 PM | #1 |
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Speedometer slightly off??
Since I've gotten my car I've always thought it never seemed like I was going as fast as my speedometer suggested. I always brushed it away as just a faster, smoother, newer ride. Then I got my Passport Max..
While you drive it uses GPS to display your speed and it is always about 3-5 mph slower than my speedometer. I started wondering if it was just the radar GPS, and then started using apps on my phone. They too always suggest I'm traveling 3-4-5 miles per hour slower than my vehicle does...usually its about 2-3mph lower when my speedometer reads 60mph and 4-5 when it reads about 80mph. Has anyone else ever had this issue?? |
08-07-2013, 05:13 PM | #3 |
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Son of a -_-
![]() So annoying... I wish they would just give me an accurate read out. Edit - To anyone who reads this post wondering the same thing, I found this thread: http://www.e90post.com/forums/showthread.php?t=740977 There seems to be an alternative method of reading speed through coding, but other than that the only fix is to physically adjust the needle =( |
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08-07-2013, 05:24 PM | #4 |
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Yup! Mine is a full 5% fast (at 80mph, that's 4mph!) I just drive accordingly, i.e. set the cruise control at 82 if I want to go 78. Annoying.
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08-07-2013, 06:35 PM | #5 |
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My E90 is the only car I've owned that does this. That includes Acuras, Hondas and VW's.
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08-07-2013, 06:38 PM | #6 |
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So you can hit 60 quicker
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08-07-2013, 06:44 PM | #8 |
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Yes it's off. The extent of your speedometer's inaccuracy is directly proportional to your actual speed.
Personally, I think car makers are in collusion with traffic cops, though to what end I don't know for sure: 1 - so you'll feel better when the cop gives you a ticket for going slower than you thought you were. 2 - So you'll think you are going faster than you really are and thereby be traveling at a safer speed.
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08-07-2013, 06:45 PM | #9 |
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Interesting. When my speedo says 80, the radar says 74.
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08-07-2013, 06:51 PM | #10 | |
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08-07-2013, 06:54 PM | #12 | |
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08-07-2013, 06:56 PM | #13 |
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My nav system has 169mph stored on it as the fastest speed it's ever gone, which means my car's speedo would have said 180... if it went that high.
My wife's GTI speedo goes to 180, why not a 3 series?
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08-07-2013, 06:58 PM | #14 |
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You're supposed to have your electronic devices turned off during take-off and landing...
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08-07-2013, 07:05 PM | #15 | |
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08-07-2013, 07:09 PM | #16 | |
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08-07-2013, 08:03 PM | #18 | |
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08-07-2013, 08:51 PM | #20 |
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[QUOTE=bmorebblick;14459571]Son of a -_-
![]() So annoying... I wish they would just give me an accurate read out. I agree. I have never been able to understand why the speedometer in my Chev truck can be right on, yet my BMW is so far off. ![]() |
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08-07-2013, 09:23 PM | #21 |
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08-07-2013, 09:39 PM | #22 |
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Mine is anywhere from 5-7 mph off when I've TextEdit with other vehicles. I just go about 10 mph over the speed limit and it seems to work out pretty well so far.
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