Mercedes-Benz manufactures its own automatic transmissions. With the increasing prevalence of dual-clutch transmissions in recent times, Mercedes has also developed one for their passenger vehicles. Recently, a customer of ours encountered an issue where they were unable to perform basic settings on the transmission control module. Below, we elaborate on how we assisted our customer through remote diagnostics.

Brand: Mercedes
Model: A Class, B Class, CLA
Transmission: 724.0**
Complaint: Basic measurement of clutch valves at the limit

A transmission shop based in Germany came online with a Mercedes A-Class (W176) after installing a brand new clutch. Upon attempting to carry out basic measurements, they encountered repeated failures. They reached out to us with the question of whether we could determine the issue.

One of our operators utilized OE Xentry diagnostic software to connect to the vehicle. We conducted a check for software updates on the car, but unfortunately, there were no updates available, as depicted in the image below.

Once we completed the software update check, we proceeded with the basic settings. These settings require certain preconditions to be met, and once these conditions were fulfilled, we initiated the basic settings procedure.

Unfortunately, the basic adjustment failed due to an issue termed “Basic measurement of clutch valves at the limit.” Following a discussion with the customer, we jointly decided to remove the transmission for an inspection of the dual clutch. Several days later, the customer informed us that they had identified the problem. It appeared that during transport, the dual clutch had sustained damage, resulting in leakage beside the Teflon sealing. After mounting a new clutch, the basic adjustment was successful, and the car is now driving perfectly again.