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#2
12-24-2011, 10:53 AM
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Not the speedo. They read high through most, if not all, of the range.
Merry Christmas.
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Sent via Telegraph Wires using my Morse Key. 2021 X5 xDrive40i 2015 X5 xDrive35i MSport (Traded) 2013 X5 xDrive35i 
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#3
12-24-2011, 12:29 PM
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IIRC
All bmw speedo (from that generation at least) are all off by a certain % at a certain mph. While the computer and speed measuring GPS' are correct. One thing that could possilby throw off speed measurement is the wheel/tire size, just slightly. (I'm not too sure though) Main point: Nothing is wrong 
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~The Family Cars~ 1997 BMW 540i [Jet Black / Black] [None  ] 2001 BMW X5 4.4i [Jet Black / Black] [Sport] 2003 BMW 540i [Sterling Gray / Gray] [Msport] [Shades] [Folding seats] [DSP] [Aux] [ICE V5] 2008 BMW 550i [Jet Black / Black] [Sport] [Paddles] [Comfort Access] [IPOD] [Shades] [Nav] [PDC] A 5'er that was almost too good too be true. C~Certain P~Problems O~Overlooked
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#4
12-24-2011, 02:18 PM
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Design accuracy is for +2.4 mph + 5%. Maximum permitted error is +2.4% + 10%, or - 0% (no under-reading permitted).
See this post for a link to the TSB. http://www.xoutpost.com/810962-post5.html So, at 110 km/hr actual, it should read around 110 + 4 km/hr + 5.5 km/hr = 119.5 km/hr. Seems pretty close, around 117 km/hr in the photo.
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2007 X3 3.0si, 6 MT, Premium, White Retired: 2008 535i, 6 MT, M Sport, Premium, Space Grey 2003 X5 3.0 Steptronic, Premium, Titanium Silver 2002 325xi 5 MT, Steel Grey 2004 Z4 3.0 Premium, Sport, SMG, Maldives Blue
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#6
12-25-2011, 06:48 PM
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Thanks I know that in previous vehicles it's always over read by a few km/h but never that much. Have to drive 1000km in a day 4 times in the next couple of months so I want to go as fast as possible without getting a fine in the mail.
Guess I'll be setting the cruise to 10km more than the limit. Should knock the travel time down by an hour
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