The following customer complaints may be noted

Bulletin number

LI00.20-P-070791

Component

Electrical system

Summary

The following customer complaints may be noted: - "Service A/B Due" message is displayed in the instrument cluster before the appropriate mileage or date is reached - "Service A/B Due: Do you want to make an appointment?" pop-up message in the head unit display (see attachment) before the appropriate mileage or date is reached - "Your Mercedes-Benz _ is due for service." MMC service lead email or App message (see attachment) is sent to the customer before the appropriate mileage or date is reached. Improper mileage synchronization between the electronic ignition lock (N73), instrument cluster (N133/1), and the central powertrain controller (N127). At present time updated Central Powertrain Controller (N127) software is available for the following vehicles: - Model series 118, 177 and 247 equipped with the M260 engine variant - Model series 167 equipped with the M264, M177 engine variants Software is still under development for other affected engine variants and models. This document will be updated when the software is available.

Owners of these vehicles have filed 50 complaints in the electrical category.