E12 question reg. speed signal transfer

[shogun]

If I understand it correctly, the E12 does not have a speed sensor on the diff like all the later diffs.
There should be a mechanical system with a kind of bowden cable from the engine somewhere. It is a 518i, but the prob is, the car was made at BMW South Africa.
Someone on the German board was asking for the speed sensor, I told him on the diff on an E28. Now I have the feeling it is an E12 made in 1982. Probablty the E12 was longer produced in South Africa.
The E28 cam out in Europe in June 1981.

So the question: where is the drive for the speed indicator on the engine located?
He bought the car recently, but the speedmeter never worked.

And the funny thing is, that under VIN number on his registration papers it says
12821354.
But that would be an E30:

Daten für die Fahrgestell-Nr. '2821354'
Baureihe: E30
Fahrzeugtyp: 316
Typschlüssel: 1351
Motor: M10
Karosserie: 4-Türer
Katalogausführung: Europa
Lenkung: Links
Getriebe: Manuell
Produktion: 01/1988
---------------------
And what usually has to be repaired if the speedmeter does not work?

[shogun]

car pic


engine-nr: 7682605
chassis-nr: 12821354

[shogun]

[shogun]

Found it has a cable.
http://www.realoem.com/bmw/showparts...28&hg=62&fg=05

Where does that go on the engine?

[WarrenBrown]

Probably it connects to the tail of the transmission like the 2002 used to before the days of electronic speedometers.

Warren
91 318is
95 525iT

[Bellicose Right Winger]

It connected to tail of trans on my '79 528i.

Paul Shovestul

Probably it connects to the tail of the transmission like the 2002 used to before the days of electronic speedometers.

Warren
91 318is
95 525iT

[shogun]

Thanks,
good info. He was always searching at the rear end of the differential as it is nowadays on the others.
Will tell him.

Just for info;
The South African E12 was built till 1985, some parts from the interior were already from the E28.
The German made E28 started already mid 1981.

[Craig in Davis]

It connected to tail of trans on my '79 528i.

Paul Shovestul

the transmission. It runs into the interior where it joins a second segment of cable that connects to the back of the speedometer. The pieces of cable may have seperated at one of the connections or the cable is broken or the drive is bad. The odometer gears go bad but that doesn't affect the speedo. I could see the speedo giving bad info but it really should move when the cable turns.

[shogun]

He found the drive for the speedo on the trans. But the cluster does not look to have a connector for a mechanical drive





Any idea how to connect a mechanical drive to this cluster?
Since he bought the car the speedy never worked and he wants to repair it.

According to his registration document, these strange numbers are shown, but if I check the chassis number, an E30 comes up. Maybe in South Africa they used a different system?

engine-nr: 7682605
chassis-nr: 12821354

[Bellicose Right Winger]

That looks like an E28 cluster. Are you certain it came from the E12? Does the rest of the cluster work, tach, warning lights, etc?

I'd follow the cable from trans back to dash. There may be an encoder that produces the required 4675 pulses per km.

I think I see a 10 82 date code in the blue "triangle" on the right hand side of the 1st photo.

Paul Shovestul

He found the drive for the speedo on the trans. But the cluster does not look to have a connector for a mechanical drive





Any idea how to connect a mechanical drive to this cluster?
Since he bought the car the speedy never worked and he wants to repair it.

According to his registration document, these strange numbers are shown, but if I check the chassis number, an E30 comes up. Maybe in South Africa they used a different system?

engine-nr: 7682605
chassis-nr: 12821354