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Maintenance Tips for the Dualogic Automated Gearbox

Model: (Various brands) Various
Part: Transmission

This video provides excellent maintenance tips for the Dualogic automated gearbox (also known as Selespeed or Sensodrive, depending on the brand using it: it is always produced by Magneti Marelli). First, the hydraulic actuator oil, like all oils, degrades over time and needs to be replaced. Do not believe those who say it will last for the life of the vehicle, whatever it may be. Over time, it becomes acidic and corrodes the seals from the inside. It should be replaced every 60,000 to 80,000 miles or every 5 to 6 years. When replacing the oil, thoroughly clean the tank of all residues and deposits; these contaminants are the main cause of hydraulic valve malfunctions. A good option is to use a specific additive like Diamond, recommended in the video, which can be found on eBay with the code 274801729689 for £31.05, with free delivery. The Dualogic gearbox has a flywheel, a clutch, and a mechanical actuator, just like a manual gearbox; these components wear out and need to be checked. When changing the clutch, it is also essential to perform the calibration procedure with professional diagnostic tools to teach the gearbox where the engagement points of the clutch are.

Posted on 6 April 2026 by ScegliAuto

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