How do you replace speedometer cable for 1988 Mercedes Benz 190E?

To replace the speedometer cable on a 1988 Mercedes-Benz 190E, start by disconnecting the negative battery terminal to ensure safety. Locate the speedometer cable at the back of the speedometer cluster and at the transmission; carefully unscrew and pull it out from both ends. Install the new cable by inserting it into the transmission and securing it, then connect it to the speedometer, making sure it’s properly seated. Finally, reattach the battery terminal and test the speedometer for proper function.