P300C · نشرات الشركة المصنعة

FREIGHTLINER, MERCEDES-BENZ · 2026-01-23

Complaint Check engine warning light is active. The following fault codes may be present in the engine control unit: • P3007F1 Leak detected in the intake air system or • P3007F2 Mass air flow malfunction in the intake air system (cylinder bank 1) or • P300CA8 Leak detected in the intake air system or • P300CA9 Mass air flow malfunction in the intake air system (cylinder bank 1) or • P300CA9 and P3007F1: Faults are present simultaneously in the quick test In addition, the customer may report: • An “air leak” type noise from the engine compartment/intake air area, and/or • A “chugging” noise, especially during acceleration or under load. These noise complaints can be present with or without the above fault codes. Cause Causes for FC P3007F1 or P300CA8: Faults are set if: • If there is a…

FREIGHTLINER, MERCEDES-BENZ · 2025-06-20

Check engine light active - Fault P3007F1, P3007F2, P300CA8, or P300CA9 present in CDI control unit Complaint Check engine warning light active. The following fault codes may be present in the engine control unit: • P3007F1 Leak detected in intake air system or • P3007F2 Mass air flow malfunction in intake air system (cylinder bank 1) or • P300CA8 Leak detected in intake air system or • P300CA9 Mass air flow malfunction in intake air system (cylinder bank 1) or • P300CA9 and P3007F1: Faults are present simultaneously in the quick test Cause Causes for FC P3007F1 or P300CA8: Faults are set if: • If there is a leakage upstream of the exhaust gas turbocharger (see "Dichtring_Sealant.jpg"). • If the housing intermediate flange at the high-pressure EGR valve (where the exhaust back pressure…

FREIGHTLINER, MERCEDES-BENZ · 2024-12-09

Check engine light active Complaint Check engine warning light active. The following fault codes may be present in the engine control unit: • P3007F1 Leak detected in intake air system or • P3007F2 Mass air flow malfunction in intake air system (cylinder bank 1) or • P300CA8 Leak detected in intake air system or • P300CA9 Mass air flow malfunction in intake air system (cylinder bank 1) or • P300CA9 and P3007F1: Faults are present simultaneously in the quick test

MERCEDES-BENZ · 2024-11-28

Check engine light active - Fault P3007F1, P3007F2, P300CA8, or P300CA9 present in CDI control unit: Check engine warning light active. The following fault codes may be present in the engine control unit: • P3007F1 Leak detected in intake air system or • P3007F2 Mass air flow malfunction in intake air system (cylinder bank 1) or • P300CA8 Leak detected in intake air system or • P300CA9 Mass air flow malfunction in intake air system (cylinder bank 1) or • P300CA9 and P3007F1: Faults are present simultaneously in the quick test

FREIGHTLINER, MERCEDES-BENZ · 2024-10-10

Complaint Check engine warning light active. Fault code P300CA8 or P300CA9 "Hot film mass air flow sensor malfunction" present in engine control unit. Cause These faults can be set if: 1. A leakage upstream of the exhaust gas turbocharger causing a to high EGR rate. 2. Carbonized parts, e.g., the intake module, housing intermediate flange on high-pressure EGR valve (assembly of exhaust pressure sensor P3) or the intake ports also let through too little air. 3. The air filter has been highly soiled, incorrectly positioned or has a deformation.

MERCEDES-BENZ · 2023-02-03

Complaint Check engine warning light active. Fault code P300CA8 or P300CA9 "Hot film mass air flow sensor malfunction" is present in engine control unit. Cause a) In the case of fault P300CA8: • Due to incorrectly installed component parts of the clean air line between the air filter box and the exhaust gas turbocharger, it is possible that leaks may occur in the system which subsequently result in air mass faults • A fouled air filter or leaks in the intake or charge air system downstream of the exhaust gas turbocharger may also cause these faults. b) In the case of fault P300CA9: • Computational model for programmed values of air intake, in particular, for the high load mode, calculates this high load correction programmed value incorrectly. This leads to the programmed value drifting…