Mercedes-Benz A 220 2019–2023 — technical service bulletin

Bulletin LI82.20-P-074734 · NHTSA communication 10235667 · issued Apr 4, 2023

Technical service bulletin

communication type

Electrical System

component

2019–2023

model years

vehicle entries

Official summary

Complaint Ambient lighting malfunctions sporadically, mainly in the Ocean Blue color value and with animation "ON". After the next ignition cycle, the ambient lighting functions again correctly. Cause Software in coupling elements (EKE) faulty. The coupling element software cannot be updated in After-Sales. Remedy In a complaint case, replace the respective wiring harness (coupling elements are installed on the wiring harness) for ambient lighting.

Vehicles covered

What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.