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How to Reset the Service Light on a Mercedes CLA

Model: Mercedes CLA C117, X117 - Years: 2013, 2014, 2015, 2016, 2017, 2018, 2019
Part: Service warning light

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Video tutorial

To reset the service light on a Mercedes CLA, turn on the ignition without starting the engine and bring up the total mileage display on the instrument cluster. Press and hold the OK button and the Phone/Call button on the steering wheel simultaneously for a few seconds until the workshop menu appears.

Use the steering wheel controls to select ASSYST PLUS, then enter the Full Service section. Select Confirm Service and, if prompted, specify the type of oil used.

Then choose Yes and confirm the reset with OK. Wait for the message indicating the operation is complete, then turn off the ignition. Turn it back on after a few seconds and check that the new maintenance interval has been saved.


Posted on 1 September 2026 by ScegliAuto


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