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March 10, 2026 Service bulletin

Either during PDI or after updating vehicle software, there may be: • "A+S"

Mercedes-Benz technical service bulletin LI54.71-P-080320 for 2026 Mercedes-Benz Cla 250+ (EV) and 2026 Mercedes-Benz Cla 350 4matic (EV).

Bulletin number
LI54.71-P-080320
Component
Electrical system
Summary
Complaint Either during PDI or after updating vehicle software, there may be: • "A+S" - Active and Stored DTC • "S" - Stored DTC Cause Software status of IDC_GEN6 In some cases, a diagnosis session or a software update may generate fault codes that do not cause any restrictions in customer operations. Remedy If: • All driver assist functions operate without restrictions AND • There are no persistent driver assist cluster messages (Example: white message for "Driver Assist Systems Inoperative") AND • No persistently yellow driver assist cluster icons The DTC's may be ignored. If any of the above are true during PDI or after software update, please check LI54.71-P-080315 or open a TIPS case to the Body/Chassis/Entertainment inbox.

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