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April 7, 2026 Service bulletin

Complaint When closing the door, the side window may remain slightly open (short stroke position)

Mercedes-Benz technical service bulletin LI72.40-P-071889 for 2017-2018 Mercedes-Benz C300, 2015-2017 Mercedes-Benz E550 and 2017 Mercedes-Benz S550 and others.

Bulletin number
LI72.40-P-071889
Component
Electrical system
Summary
Complaint When closing the door, the side window may remain slightly open (short stroke position). Automatic window raising function of side window inoperative. NOTE: Window is fully operational while holding the switch Cause Software in door control unit (N69/x). Starting the engine at the same time as the door is closing (short stroke closure of window lifter) may result in a denormalization of the window lifter system. Remedy Update the software in the affected door control unit (N69/x). • This requires the door control unit (N69/x) to be commissioned. • (Path: XENTRY Scope; Control units view; DCU-XX (N69/x); Adaptations; Commissioning) Availability of the repair software in the field organization: • Since 10.10.2020 for model series 238, 257, 217 (FACELIFT) and A/C205 (FACELIFT) • Since 12.04.2021 for model series 118

Owners of these vehicles have filed 68 complaints in the electrical category.

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