HomeLI27.19-P-080869 · MERCEDES-BENZ
MERCEDES-BENZ

LI27.19-P-080869

Manufacturer communications

Publication date
2026-08-29
Received by NHTSA
2026-09-09
NHTSA record numbers
11037210

Manufacturer summary

Original wording in English

Complaint Temporary no start condition with check engine light and multiple warning messages. When performing a quick test, the following fault code is stored in Y3/14 ‐ Transmission control for 8‐speed dual‐clutch transmission (DKG): P24F100 The wake‐up line of the control unit has a short circuit to positive. Cause Possible signal timing between EZS control unit and Transmission Control Unit (DKG) Remedy As of 7/15/2026, new SCN coding is available for the EZS control unit. IPR will advise to open a TIPS case for EZS (N73), this is due to GLA models requiring support for SCN coding procedure. GLB (X247) and CLA (118) No TIPS case necessary. 1. SCN coding of EZS Control Unit 2. Clear all faults and perform extended road test with multiple drive cycles GLA (H247) Special function password required. 1. Verify if special procedure Central Locking ‐ Development Data is present in EZS (figure 1) 2. Submit a TIPS case to the Powertrain Inbox with the following information: ‐ Initial Quick Test w/ freeze frame data ‐ IPR Result ‐ DKG Control Unit Log ‐ EZS Control Unit Log ‐ Initial EEPROM data ‐ EZS special procedure menu If the vehicle has had this LI performed and P24F100 has returned, please submit a TIPS case to the Powertrain Inbox.

NHTSA manufacturer communications ↗

Reported code forms

Check vehicle applicability

A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

MakeModelModel year
Mercedes-BenzGLB 2502023
Mercedes-BenzGLB 2502022
Mercedes-BenzGLB 2502021
Mercedes-BenzGLB 2502020
Mercedes-BenzGLB 250 4MATIC2026
Mercedes-BenzGLB 250 4MATIC2025
Mercedes-BenzGLB 250 4MATIC2024
Mercedes-BenzGLB 250 4MATIC2023
Mercedes-BenzGLB 250 4MATIC2022
Mercedes-BenzGLB 250 4MATIC2021
Mercedes-BenzGLB 250 4MATIC2020

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