Mercedes-Benz 000-158-78-03-80 Ignition Coil

For V6 engines, the steps are as follows: 1. Disconnect the cable from the negative battery terminal. 2. Remove the engine cover or air filter housing as necessary. 3. Disconnect the electrical connector from the ignition coil. 4. For models from 2001 to 2005, label the spark plug wires before disconnecting them. 5. Remove the ignition coil mounting bolt and the coil itself, inspecting the rubber boot for any damage. 6. For 2006 and later models, follow similar steps and check the condition of the rubber boot. 7. Installation is the reverse of removal, and after completing the process, perform the relearn procedures.

For four-cylinder engines, the process begins with: 1. Disconnecting the negative battery terminal. 2. Removing the ignition coil cover screws or engine cover as applicable. 3. Disconnecting the electrical connector. 4. Removing the ignition coil mounting bolts. 5. Inspecting the rubber boot and replacing it if necessary. 6. Reinstalling in reverse order and completing the relearn procedures.