Speedometer faulty

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Johnny Dahlmo - 23 Jul 2005 22:55 GMT

Hi

My speedometer stopped working; and at the same time the window wiper
stopped working at regular speed mode. (Only intermittant and full speed are
now functioning.)
I have checked the fuses.

My question is:
Could these problems be linked together?

I hope anyone could advice on how to fix this.

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Kyle and Lori Greene - 23 Jul 2005 23:12 GMT

> Hi
>
[quoted text clipped - 7 lines]
>
> I hope anyone could advice on how to fix this.

Beside the obvious since this is a BMW forum, what year and model are you
talking about?

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Johnny Dahlmo - 24 Jul 2005 10:33 GMT

>> Hi
>>
[quoted text clipped - 10 lines]
> Beside the obvious since this is a BMW forum, what year and model are you
> talking about?

Oops..
'89 BMW 520 (E34)

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Tbird-Steve - 24 Jul 2005 11:49 GMT

In normal speed wiper position, they go intermitant when you are stopped (ie
speedo reading less than about 5 mph) so I would say the problems are linked
and it is the faulty speedo that is causing it. On E34 it is normally a bad
earth in the cluster or nearby cabling (try banging around the dash while
driving). If you have to replace the whole cluster, there are two different
ones - one speedo goes to 240 (probably yours) and later one goes to 260 kph
(or mph equivalent) - they're not interchangable.

Steve

>>> Hi
>>>
[quoted text clipped - 13 lines]
> Oops..
> '89 BMW 520 (E34)

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John Burns - 24 Jul 2005 10:53 GMT

> My speedometer stopped working; and at the same time the window wiper
> stopped working at regular speed mode. (Only intermittant and full speed are
> now functioning.)

I suspect the connection to the speed sensor on the differential is
dodgy. The speed signal is used as an input to the wiper controller.

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Johnny Dahlmo - 24 Jul 2005 23:15 GMT

>> My speedometer stopped working; and at the same time the window wiper
>> stopped working at regular speed mode. (Only intermittant and full speed
[quoted text clipped - 3 lines]
> I suspect the connection to the speed sensor on the differential is
> dodgy. The speed signal is used as an input to the wiper controller.

Thank You for the tip.

Now it works. Both wiper and speedometer. I checked the connectors on the
differential and they were bad. I fixed them, and now everything works fine!

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