obc programming

Hey,

I have a BMW 325 E2 (i think E36 model). The OBC has a Digital Speed
meter (since I put in a code). But the speed on the OBC is 7 km/h
lower then on my analog speedometer.

Is there any possible way I can "reprogram" my digital speedometer?

Thanks in advance

Erik

In article >, Erik Metselaar wrote:
>Hey,
>
>I have a BMW 325 E2 (i think E36 model). The OBC has a Digital Speed
>meter (since I put in a code). But the speed on the OBC is 7 km/h
>lower then on my analog speedometer.
>
>Is there any possible way I can "reprogram" my digital speedometer?

You would do better to reprogram the analogue speedometer, as it's reading
high

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Your quite right, its to high.

But my analog meter is the same as in every other car, (witch is also
to high :-D) so i better reprogram my digital meter

but does anyone know how to reprogram any one off them???

On Thu, 30 Jun 2005 14:47:46 +0000 (UTC), in (Jan
Kalin) wrote:

>In article >, Erik Metselaar wrote:
>>Hey,
>>
>>I have a BMW 325 E2 (i think E36 model). The OBC has a Digital Speed
>>meter (since I put in a code). But the speed on the OBC is 7 km/h
>>lower then on my analog speedometer.
>>
>>Is there any possible way I can "reprogram" my digital speedometer?
>
>You would do better to reprogram the analogue speedometer, as it's reading
>high

In article >, Erik Metselaar wrote:
>Your quite right, its to high.
>
>But my analog meter is the same as in every other car, (witch is also
>to high :-D) so i better reprogram my digital meter
>
>but does anyone know how to reprogram any one off them???
>
>On Thu, 30 Jun 2005 14:47:46 +0000 (UTC), in (Jan
>Kalin) wrote:
>
>>In article >, Erik Metselaar wrote:
>>>Hey,
>>>
>>>I have a BMW 325 E2 (i think E36 model). The OBC has a Digital Speed
>>>meter (since I put in a code). But the speed on the OBC is 7 km/h
>>>lower then on my analog speedometer.
>>>
>>>Is there any possible way I can "reprogram" my digital speedometer?
>>
>>You would do better to reprogram the analogue speedometer, as it's reading
>>high

Check out http://www.rayd.co.uk/Blogs/RayBlog....ks/e32obccodes It's
for 7-series E32, but the OBCs were very similar IIRC.

--
/"\ Jan Kalin (male, preferred languages: Slovene, English)
\ / http://charm.zag.si/eng/, email: "name dot surname AT zag dot si"
X ASCII ribbon campaign against HTML in mail and postings.
/ \ I'm a .signature virus. Copy me to help me spread.

"Erik Metselaar" > wrote in message
...
> Hey,
>
> I have a BMW 325 E2 (i think E36 model). The OBC has a Digital Speed
> meter (since I put in a code). But the speed on the OBC is 7 km/h
> lower then on my analog speedometer.
>
> Is there any possible way I can "reprogram" my digital speedometer?
>
> Thanks in advance
>
> Erik

Yes the OBC is more accurate than the speedometer, which tends to read high
for legal reasons.

7% is a bit much, is the car very new?

nope, its from '92
its imported from germany to netherland in 2001

On Thu, 30 Jun 2005 15:26:48 +0000 (UTC), "R. Mark Clayton"
> wrote:

>
>"Erik Metselaar" > wrote in message
.. .
>> Hey,
>>
>> I have a BMW 325 E2 (i think E36 model). The OBC has a Digital Speed
>> meter (since I put in a code). But the speed on the OBC is 7 km/h
>> lower then on my analog speedometer.
>>
>> Is there any possible way I can "reprogram" my digital speedometer?
>>
>> Thanks in advance
>>
>> Erik
>
>Yes the OBC is more accurate than the speedometer, which tends to read high
>for legal reasons.
>
>7% is a bit much, is the car very new?
>

The SPEED in the OBC is an average over time, and will not track with the
actual speed unless the cruise control is set and the speed is not changing.

Set the Cruise to 80 and travel a measured mile -- measured by sign posts
outside the car, not with the odometer or trip meter -- and measure the time
it takes. If the speedometer is accurate, it will take 45 seconds to go a
mile. If 80 is too fast for you, then set the Cruise anywhere you want, and
divide 3600 by the time it takes to go the mile, the result will be the
speed you are going. Alternatively, divide 3600 by the speed to find the
time it should take, then you can see if the mile markers are coming up as
expected.

My car is within about 1.5 mph, I have no idea where this falls on the km/h
scale. I set the Cruise, time the measured mile, and then use the OBC to
confirm the speed. The OBC is within 1.5 of the speedo, and the measured
miles fly by at 40 second intervals, give or take a half second.

The OBC is a simple calculation from the speed sensor(s), and should be
pretty accurate if the tires are the right size. The speedo uses the same
speed sensor input, but the conversion from a digital input to an analog
display leaves room for error. You WANT the speedo to read a bit on the high
side because if the speedo reads 70 and you are doing 68, you are in better
shape than if it reads 70 and you're really doing 73. One way begs for a
ticket, the other way assures you won't get a ticket.





"Erik Metselaar" > wrote in message
...
> Hey,
>
> I have a BMW 325 E2 (i think E36 model). The OBC has a Digital Speed
> meter (since I put in a code). But the speed on the OBC is 7 km/h
> lower then on my analog speedometer.
>
> Is there any possible way I can "reprogram" my digital speedometer?
>
> Thanks in advance
>
> Erik

On Thu, 30 Jun 2005 15:10:19 +0000 (UTC), in (Jan
Kalin) wrote:

>In article >, Erik Metselaar wrote:
>>Your quite right, its to high.
>>
>>But my analog meter is the same as in every other car, (witch is also
>>to high :-D) so i better reprogram my digital meter
>>
>>but does anyone know how to reprogram any one off them???
>>
>>On Thu, 30 Jun 2005 14:47:46 +0000 (UTC), in (Jan
>>Kalin) wrote:
>>
>>>In article >, Erik Metselaar wrote:
>>>>Hey,
>>>>
>>>>I have a BMW 325 E2 (i think E36 model). The OBC has a Digital Speed
>>>>meter (since I put in a code). But the speed on the OBC is 7 km/h
>>>>lower then on my analog speedometer.
>>>>
>>>>Is there any possible way I can "reprogram" my digital speedometer?
>>>
>>>You would do better to reprogram the analogue speedometer, as it's reading
>>>high
>
>Check out http://www.rayd.co.uk/Blogs/RayBlog....ks/e32obccodes It's
>for 7-series E32, but the OBCs were very similar IIRC.

thanks alot

this article says everything i need to know.