Peugeot 405 Speedometer Drive

Simple, unfortunately not when the car is a 405Grx4!!!

The speedo hasn't worked since I've had the car. It has always been my
intent to get the speedo working and last weekend was the catalyst.

I had a water leak in a heater hose that ran behind the engine. To make
access easy I removed the cam cover, then I could start to see the
speedo drive.

On dismantling the speedo drive, the following was noted;

The speedo cable "plugs" into the ECU sensor/sender. With the sensor
and speedo cable removed I could just get hold of the actual speedo
drive. (The speedo cable was seized and has been replaced).

When the speedo drive had been removed from the gearbox I compared it to
what had been supplied by Peugeot to the chassis number and description
of the car. Not even close. I described the part to the local Peugeot
dealer today - he had never seen a speedo drive like that! Can anybody
in this group help??

The speedo drive looks as follows;

A steel shaft approximately 100mm long and 6mm in diameter.

15mm from the bottom of the shaft is a plastic gear with helical teeth
(I assume this mates to a gear in the gearbox).

At roughly 1/3 and 2/3 the way up are plastic "collars" approximately
2mm thick. These are firmly fixed to the steel shaft.

The top of the shaft has a square hole to take the speedo cable.

(When fixed in the car, the top of the shaft also passes through the ECU
speedo sensor.) I believe in this case the actual speed is not
important it is just a go/no go sensor so that the fuel can be altered
at idle and stationary.)

So, has anybody sen anything like this? Can you help my local Pug
dealers out?

Best Regards

Peter