How to Handle Mercedes-Benz Fault Codes 0810 and 0814?

[NevaehLee]

Cleaning the engine: When the engine malfunction indicator light comes on, the owner should promptly clean the engine. It is recommended to visit a repair shop to use specialized cleaning agents to remove carbon deposits. Using higher-octane gasoline: To maintain the engine in good working condition, the owner can opt for 95 or 97 octane gasoline, which usually resolves the issue of the engine malfunction light. Below are detailed explanations: 1. Fault codes 0810 and 0814: These fault codes in Mercedes-Benz vehicles indicate engine issues. Specifically, 0810 refers to the secondary air system's air flow (bank 1) being too small, while 0814 indicates the secondary air system's air flow (bank 2) being too small. 2. Addressing lean fuel mixture faults: If the issue is caused by a clogged air filter leading to reduced fuel injection and a lean mixture, cleaning the air filter can resolve the problem of insufficient fuel injection. If the fuel pump pressure is too low, cleaning the fuel pump can address the low-pressure issue.