Mercedes Benz 722.9 Transmission Plate Repair

We met a lot of transmission plate problems when repair Mercedes Benz. Most time, the broken part is only the speed sensor in the plate. To exchange a new transmission plate is quite expensive, but to replace theses speed sensors, is not only cheap but also a fast solving method.

How to replace the speed sensor?

Step 1,
Confirm the broken unit is the speed sensor. The diagnostic result will show: the turbo speed sensor no signals or fault...

Step 2,
Remove the broken speed sensor from the plate. That's the hardest part we will face, as the speed sensor stay too tight.

Here we normally use two ways to remove it,

A,  Tools you need, a electric drill, a screwdriver and a hammer， below is the removing process










B. Tools you need: a speed sensor removal bar, a hammer





In both ways, please note that DO NOT break the yellow film, or any other part, especially using hammer.

Step 3,
Glue the hole( not too much), and insert a new speed sensor inside. Put back the yellow file carefully, and soldering the connecting points with the new speed sensor.


Step 4

The last step you need to do is diagnosing the unit again. If there is no more speed sensor faulty or something, congratulation, you make it!

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