4060Re: Can't reset the service indicator
- Dec 14, 2005Hi Guys,
Cheers for all your help. I have solved the problem! It wasn't
directly the service board or the speedo but the connection pins
joining the two together. I stripped the whole instrument cluster
down and used electrical contact grease between each of the pins on
the 3 boards and also the ribbon connectors to the display & hey
presto! it works again. I did a continuity test on another service
display & found i had 2 scrape at the contacts to get a good circuit.
All it needed was a bit or help with the electrical cunductance twixt
the speedo & service board. been in a week & its fine. I knew the
batteries were fine. Also I've read somewhere that the speedo can
read fast by 10% + an extra 2.5% in some cases to over compensate for
inaccurate speedo readings. I think this explains the extra mileage.
Thanx again for your help.
--- In bmwe28@..., "Andrew W. Hill" <jessicat@j...>
> >I own a 1985 uk spec e28 520i & am having trouble resetting thesync
> >indicator. Every time i reset it, it flicks back to inspection but
> >all the led's off. Also i think the speedos going fast as it says
> >done 12,500 miles in 9 months & that is far more that i travel. I
> >read somewhere that the speedo could be at fault running out of
> >its confusing the service indicator causing it 2 reset? i've tried
> >another service board n its doing exactly the same thing as i
> >it might have been the batteries. Could it be the speedo? any helpis an indication of the batteries running low. I suspected my speedo
> >would be appreciated.
> I'm not an expert, but I think the unresettable service indicator
was off as well based on my 0-60 times which seemed atrociously
fast. Where I am there are some marked out sections (usually 3
miles) that you can use to test your speedo.
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