How to change ignition coils on Mercedes-Benz 2.0T 4-Cylinder M274 M270 engine
In this guide, you will find instructions on how to change the ignition coils on 2013 and newer Mercedes-Benz models equipped with the four cylinders 2.0-liter turbo engine. See application list below.
Park your Mercedes-Benz on a level ground set the parking brake and let the engine cool down.
Pull the hood release under the dashboard to open the hood.
Remove the engine cover by lifting it up.
Remove the T-25 Torx bolts that secure the ignition coil to the engine. Each ignition coil has two bolts.
Disconnect the electrical connector. Use a flathead screwdriver to unlock the tab on the connector. Then press and pull the connector away.
If your ignition coil comes with the boot, pull up the coil and the boot togther to remove them from the spark plugs. If you are not replacing the boot, use a flathead screwdriver to pry out the spark plug boot from the ignition coil. Pull up the ignition coil.
Remove the ignition coil.
Install the new ignition coil and torque the Torx screws to 10Nm.
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