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What is Common Rail Direct Injection (CRDI)?

My Audi A4 has a CRDI engine, can you explain how it works?

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Common Rail Direct Injection is a type of fuel injection system used in diesel engines. It delivers fuel directly to each individual cylinder at high pressures, resulting in improved fuel efficiency and reduced emissions.

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As an Audi owner, I can tell you that CRDI technology is essential to the performance and longevity of your engine. It uses a high-pressure fuel rail and electronically-controlled injectors to precisely deliver fuel, resulting in smoother and more efficient combustion.

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