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GLC Class (X253) Produced 2016-2022

check engine light coming on

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Old Dec 11, 2023 | 05:40 AM
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MB GLC350e
Exclamation check engine light coming on
I drive MB PHEV GLC350e. While driving in the EV mode every time after hard acceleration, when the vehicle switches to ICE, the 'check engine' light comes on (no blinking, just a steady light). We ran diagnostics two times - once they changed the thermostat, second time added coolant. Before I go there for the third time, just wanted to ask if anyyone expericed something similar and how was it resolved? Or any suggestions anyone might have?
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Old Dec 11, 2023 | 06:10 AM
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'12 E550, '10 ML350, '06 E350, '20 GLC300, '21 GLC300
Get a scan tool that will read the codes thru the OBD-II port under the steering column.
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Old Dec 11, 2023 | 02:58 PM
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'21 AMG53 wDPP & ARC, 19 GLC300 - Former-03 C240,2 ML BlueTecs,20 GLE450 E-ABC,15 Cayenne D,17 Macan
Check for coolant leaks around the expansion tank cap.
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