What is the role of the air cleaner?

• A. Removes solid contaminants from engine oil
• B. Routes engine exhaust
• C. Removes solid contaminants from air entering the turbo-charger
• D. Delivers fuel from the tank to the ejectors

Answer: (C)

The air cleaner’s job is to remove solid contaminants from the air before it enters the engine intake, especially into the turbocharger. By trapping dust, dirt, and debris in the filter element, it protects the turbocharger’s compressor and the engine from wear and damage, helps maintain proper airflow for efficient combustion, and preserves overall performance. The other options describe functions of different systems—oil filtration, the exhaust path, and fuel delivery—not what the air cleaner does.