Mercedes W201 190D rev counter operating after instalation

Rev counter operating after instalation. This rev counter replaces the original big clock.

[@tonyreyes9969]

Some Bosch Alternator on a mercedes benz diesel has a terminal "W" where you can get a signal to operate a tachometer.

[@Venuzijan]

Where did you buy the sensor? And what's the name of the sensor?

[@TheAMG39]

Great! How have you installed it :? Where have you taken signal from?

[@PTW201]

You just need put the sensor on the gearbox.
Connect the sensor signal (+) to the rev counter on (W)
Connect the sensor signal (-) to the mass.
Finally you need pull power to the signal (+) of rev counter.
Do you want some pics?

[@TheAMG39]

Yes, it would be great if have some! I havent seen how the sensor looks

[@PTW201]

TheAMG39 All you need is here:
www.mercpecas.com/forum/viewtopic.php?f=104&t=585
Register and enjoy.

[@TheAMG39]

Thank a lot ! It is all clear to me now. I only have to find sensor now. All the best man !

[@TheAMG39]

One more question; my rev counter has 3 pins W + and - ; Do i connect - on the rev to the mass :?