FREIGHTLINER, MERCEDES-BENZ

LI49.20-N-079157

2025-04-17 · NHTSA 11017567

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Resumo do fabricante

Texto original em inglês

Check engine light with possible Adblue warning with fault code P20F409 or P202E84 Complaint The check engine light is activated, accompanied by one or more of the following fault codes related to the Adblue System: •P20F409: The Adblue consumption is too low. There is a component fault. •P202E84: The Adblue metering valve 1 (Motor side) has a malfunction. There is a signal below the permissible limit value. Cause The potential causes for these fault codes are: A. A leak in the Adblue System B. An internal fault with the Adblue Injection Valve #1 (Motor side) C. An air pocket forming in the Adblue Injection Valve #1 (Motor side) Adblue Injector Line Remedy --Prior To Production Date 08/01/2024-- A. A Leak in the Adblue System 1. Complete the Guided Tests for P20F409 or P202E84: •Perform a thorough inspection of the Adblue Tank, the Adblue Pump, the Adblue Line, and both Adblue Injectors for leaks. •Ensure the Adblue line is properly installed, securely fastened in all clips, and not in contact with the exhaust system. •Remove both Adblue Injection Valves and complete 2-3 pressure build-ups and inspect for Adblue leakage. •If a leak is identified, repair it and retest.

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