There are certain parts in your Mercedes that play a stellar role in the smooth running & better performance of the car. One such part is the Transmission Control Module (TCM) which helps in the optimal gear shifting of the vehicle. However, issues with the functioning of the TCM can adversely affect the smooth running & performance of your Mercedes & lead to costly repairs. Have a look at the video to know the consequences of ignoring the warning signs of TCM failure in your Mercedes.