HomeLI01.20-P-076894 · MERCEDES-BENZ
MERCEDES-BENZ

LI01.20-P-076894

Manufacturer communications

Publication date
2024-05-14
Received by NHTSA
2024-06-01
NHTSA record numbers
11000623

Manufacturer summary

Original wording in English

Complaint Check engine light illuminated Fault code stored in N3/10 control unit- P052E71 – Positive Crankcase Ventilation Regulator Valve Performance: The valve for crankcase ventilation has a malfunction Cause The partial-load ventilation valve (a part of the intake line assembly) may not work as intended. Remedy Model year 2015-2018 (non-hybrid), and ALL model year 172 and hybrid variants Performed guided test for fault code P052E71. Replace intake line assembly if necessary per results of the guided test. This LI will be updated once the software solution is available for hybrid and model year 2015-2018 vehicles. Model year 2019 (Except model 172 and hybrid variants) Perform software update for N3/10 Engine control unit. Replacement of intake line assembly is not required. This LI is in relation to NCU dated 8/31/2023 "Emission Extended Warranty – Intake Line Assembly".

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-BenzC 3002018
Mercedes-BenzC 3002017
Mercedes-BenzC 350 E2018
Mercedes-BenzC3002016
Mercedes-BenzC3002015
Mercedes-BenzC350E2017
Mercedes-BenzC350E2016
Mercedes-BenzE 3002019
Mercedes-BenzE 3002018
Mercedes-BenzE3002017
Mercedes-BenzGLC 3002019
Mercedes-BenzGLC 3002018
Mercedes-BenzGLC 350 E2021
Mercedes-BenzGLC 350 E2020
Mercedes-BenzGLC 350 E2018
Mercedes-BenzGLC3002016
Mercedes-BenzSLC 3002020
Mercedes-BenzSLC 3002019
Mercedes-BenzSLC 3002018
Mercedes-BenzSLC3002017
Mercedes-BenzSLK3002016

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