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August 16, 2022 Service bulletin

CEL on with Code P012800 "The Coolant Temperature is Below the Specified Temperature"

Mercedes-Benz technical service bulletin LI20.10-P-072886 for 2018-2022 Mercedes-Benz AMG E63, 2017-2021 Mercedes-Benz AMG C63 and 2017-2022 Mercedes-Benz AMG G63 and others.

Bulletin number
LI20.10-P-072886
Component
Engine and engine cooling
Summary
Complaint CEL on with Code P012800 "The Coolant Temperature is Below the Specified Temperature" Cause Under investigation. This is not an issue that affects drivability or performance and is not a safety concern. The vehicle remains safe to operate with this code, but the measures listed in the "Remedy" section are recommended. Remedy Due to formatting issues please see "remedy instructions" in attachments

Owners of these vehicles have filed 13 complaints in the engine category.

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