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March 31, 2022 Service bulletin

Complaint The result from the XENTRY battery test does not match the current state of the battery

Mercedes-Benz technical service bulletin LI54.10-P-071499 for 2016-2022 Mercedes-Benz C300, 2017, 2020-2022 Mercedes-Benz E350 and 2016 Mercedes-Benz C250 and others.

Bulletin number
LI54.10-P-071499
Component
Electrical system
Summary
Complaint The result from the XENTRY battery test does not match the current state of the battery. Cause The XENTRY battery tester uses the stored on-board electrical system data in the SAM module to access the health of the 12 volt battery. The XENTRY battery test may not take into account a single discharge event because the SAM cannot record the data if the battery is discharged. Note: A discharged battery does not necessarily need to be replaced. A discharged battery may be recovered with no permanent damage. Remedy Follow guided tests as described.

Owners of these vehicles have filed 389 complaints in the electrical category.

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