2002 E46 316 compact - onboard computer issue

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  1. 2002 E46 316 compact - onboard computer issue 
    #1
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    baderlfc's Car Details
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    on my onboard computer that gives mpg, speed, clock, outside temp and miles left, it seems that only the clock, outside temp and miles left in tank work,

    any ideas for why this may be??

    surely the speed and mpg should adjust instantaneously??
     
     

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    #2
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    Probably a daft question but have you just reset these OBC functions?
    Or have they just disapeared?
     
     

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    i havent reset on purpose thats for sure!?!? :s

    they still show when i cycle through, but speed is stuck on 22mph and mpg is stuck on 29.4, ive left them both as the display in the hope that as i drive around id notice they change but they dont..

    not a major issue i know but would like everything to work if possible lol!
     
     

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    #4
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    nope, I dont think that is the case. The MPG and Speed is an average when displayed on the computer. Your analogue needle shows instant MPG and its the same with the MPH needle. Unlike some cars e.g. ford focus where u have digital read out for instant and another one for average MPG. You dont need this in the bmw as you have the "gorgeous' analogue needle for the instant MPG but the focus doesnt. I think the lexus IS200 has an analogue needle for the MPG...

    Try and hold the BC button in when MPG is displayed on the comp, until it resets itself, the reading will then start giving you average MPG from that point onwards. For example, my car shows around 44 mpg at 70 mph on motorway. See what your car gives ?

    Its the same with the Average speed,hold the BC button in to reset.
     
     

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    baderlfc (07-07-2009)

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    aaahhh i see, just needed that explaining to me!!

    makes a lot more sense now!!

    thanks a lot mate, much appreciated!
     
     

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    Another happy ending

    Did you sort your key fob issue out?
     
     

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    #7
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    aww mate ive had a nightmare with the keyfob,

    ive ended up £8 down for a new battery and nothing to show for it but a couple of cuts on my thumb from the stanley knife..

    1st i had major issues getting the old battery off, probably due to a crap stanley knife but never mind thats my fault for not thinking ahead!

    then i found the battery id got had shorter connections meaning i couldnt solder it back onto the rest of the circuit, well not without a couple of little bits of wire and some wire strippers which i didnt have at the time!!

    so.. its probably going to end up with me paying bmw for a new fob and getting it cut by an auto locksmith i know locally! as much as i begrudge it lol!
     
     

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    #8
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    I'd still do some digging rather than stumping up wads of cash to the $tealer
     
     

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    #9
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    im going to get a little bit of wire and try and wire the battery on, don't see how it was done without wire on the guides on here though!

    theres a bmw specialist right by me so im hoping they may be able to get me a new fob cheaper??! what you think??

    i dont want them to cut the key or charge me ££ to press a couple of buttons to program it, just the actual fob
     
     

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