# Service bulletin LI00.20\-P\-078424

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 11008065
- Published by NHTSA: 2024\-09\-27
- Manufacturer's number: LI00.20\-P\-078424
- Manufacturer's date: 2024\-09\-25
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

Cause The following conditions can occur on vehicles with a disconnected on\-board electrical system battery 12V/48V\): • The period in which the on\-board electrical system battery is disconnected cannot be counted by the maintenance computer. • As soon as the on\-board electrical system battery is connected again, the maintenance computer automatically starts counting without making a correction to the remaining time \(days to next due service\). Remedy Allowance must be made for vehicles with disconnected on\-board electrical system battery. The following process must be complied with to achieve a correct calculation: • \(A\): The number of days from the "day of vehicle handover or the last conducted Service A/B" onward up to the "day on which the vehicle arrived at the workshop". • \(B\): Remaining time \(days to next due service date shown on instrument cluster\). • \(C\): Days on which the on\-board electrical system battery was disconnected. The formula requires the following condition to be complied with. 365 \- \(A\) \[days\] = \(B\) \- \(C\) \[days\] If the on\-board electrical system battery \(12V/48V\) was not disconnected and the remaining time shown on the instrument cluster in the customer or workshop menu \(days to next due service\) is implausible or the formula was not complied with please create a TIPS case and attach the control unit logs from the instrument cluster and the PTCU as well as a quick test with freeze frame data.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2024/MC-11008065-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2024/MC-11008065-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system

## Vehicles listed

- 2023 to 2024 MERCEDES\-BENZ AMG C43
- 2024 MERCEDES\-BENZ AMG C63 S E
- 2024 MERCEDES\-BENZ AMG GLC43
- 2022 to 2024 MERCEDES\-BENZ C 300
- 2024 MERCEDES\-BENZ E 350
- 2024 MERCEDES\-BENZ E 450
- 2023 to 2024 MERCEDES\-BENZ GLC 300

JSON: [/v1/bulletins/11008065](/v1/bulletins/11008065)

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