I switched the speedometer and incorrrect miles come up

Tiny
JMEDINA2333
  • MEMBER
  • 2006 BMW 325I
  • 105,000 MILES
I had a speedmeter with 165k on it I recently purchased a new speedometer with less miles. When I switched the speedometer it originally showed me the 103k the speedometer had but once powering on the vehicle it shot back upp to the 165k my question becomes how can I have the mileage adjusted back to the 103k?
Friday, March 16th, 2012 AT 3:14 AM

7 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,874 POSTS
It will read what the computer tells it./
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Friday, March 16th, 2012 AT 3:19 AM
Tiny
JMEDINA2333
  • MEMBER
  • 4 POSTS
So if I switch the ecu to the same one the speedometer has will I be all set I rececently switched the engone so would like to follow the miles accordingly
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Friday, March 16th, 2012 AT 3:21 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
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That is what I have been told.
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Friday, March 16th, 2012 AT 3:41 AM
Tiny
JMEDINA2333
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  • 4 POSTS
So I will go ahead and do so and let you know I appreciate your time and effort best regards!
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Friday, March 16th, 2012 AT 3:43 AM
Tiny
DOCHAGERTY
  • MECHANIC
  • 9,601 POSTS
It doesn't work that way
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Monday, March 19th, 2012 AT 4:50 AM
Tiny
JMEDINA2333
  • MEMBER
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So how does it?
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Thursday, March 22nd, 2012 AT 3:09 AM
Tiny
DOCHAGERTY
  • MECHANIC
  • 9,601 POSTS
It seems that the original speedo was fine.
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Sunday, April 8th, 2012 AT 3:49 PM

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