What is the model of the Audi A4 engine?
4 Answers
Audi A4 engine is the EA888 TFSI model. The 3.0 version of the Audi A4 comes standard with Audi's patented quattro all-wheel-drive system, providing the vehicle with double the traction. The 18T and 24 versions of the Audi A4 are equipped with the multitronic continuously variable/manual transmission, which represents an advancement in automotive transmission technology. Function of the car engine: It converts the thermal energy from gasoline or diesel into mechanical energy by burning the fuel in a sealed cylinder, causing the gas to expand and push the piston to perform work. Working principle of the car engine: Air and gasoline are mixed in a certain ratio to form a combustible mixture. During the intake stroke, the mixture is drawn into the cylinder. The mixture is then compressed, ignited, and burned to produce thermal energy. The high-temperature, high-pressure gas acts on the top of the piston, pushing it to perform reciprocating linear motion. Mechanical energy is then output externally through the connecting rod, crankshaft, and flywheel mechanism. Car engine maintenance methods: Using anti-wear agents for maintenance: Engine anti-wear agents are oil additives that adhere more strongly to surfaces than regular engine oil. They are more heat-resistant and corrosion-resistant, forming a protective film on the cylinder walls. This enhances lubrication, repairs scratches on the cylinder walls, smoothens rough surfaces, and ensures the engine operates normally at high speeds, providing both protection and repair. Using high-quality engine oil: Engine oil, or lubricating oil, serves to lubricate, clean, cool, seal, and reduce wear in the engine. Only by using qualified lubricating oil can the wear of engine components be reduced, extending the engine's lifespan. Using qualified coolant: The car engine relies on the radiator to cool down; otherwise, the engine may overheat, causing fatal damage. Therefore, it is essential to ensure the coolant in the radiator is maintained at the proper level and to choose high-quality coolant. Especially in winter, the appropriate coolant should be selected based on the ambient temperature. As part of regular maintenance, the engine antifreeze should be replaced every year. Regularly removing carbon deposits from the car: It is important to prevent carbon buildup by driving at high speeds when possible, appropriately increasing the RPM during gear shifts, avoiding prolonged idling, and using clean gasoline. Maintaining good driving habits can help reduce carbon deposits. Timely replacement of the car's three filters: The air filter ensures a clean environment for the car engine, the fuel filter purifies the fuel, and the oil filter prevents the mixing of oxidized carbon deposits from dust and high temperatures, thereby extending the engine's lifespan.
I have been researching Audi models for ten years, and the engine types of the A4 have actually changed over the years. Early models used 1.8T and 2.0T naturally aspirated engines, and after 2000, the EA113 series turbocharged engines were introduced. The latest models now mostly feature the third or fourth generation of the EA888 engine. In China, the A4L primarily uses a 2.0T four-cylinder engine, available in three power versions: 35TFSI, 40TFSI, and 45TFSI, with horsepower ranging from 150 to 245 hp. The European market also offers a more fuel-efficient 2.0TDI diesel version. The high-performance S4 model uses the EA839 3.0-liter V6 engine, capable of delivering 354 horsepower. During maintenance, be sure to check the engine model label, located on the right side of the engine bay, and ensure that replacement parts match the specifications. Parts may vary between different model years, so this is especially important to note when buying a used A4.
When working on Audis, the A4's engine issues are frequently encountered, with the mainstream model being the EA888 four-cylinder engine. The 2.0T displacement comes in high, medium, and low power variants: the 35 model is the entry-level with 150 horsepower, while the 45 model features a sport-tuned version with 245 horsepower. Older models also had the 1.4T EA211 engine, but it was largely discontinued after 2018. The imported wagon version might come with a 3.0-liter V6 diesel engine, though it's rare in the domestic market. In the tuning community, people love to flash the ECU of the EA888, with the low-power version capable of reaching around 220 horsepower. Note the engine code location: open the hood, and you'll find an aluminum label on the front right side engraved with a three-letter-and-number code. If you encounter issues like shaking or oil burning, check this model number first before ordering parts.
Last year, I bought an A4L 40TFSI and studied its engine. It's now equipped with the third-generation EA888, a star engine from the Volkswagen Group, delivering 190 horsepower which is sufficient for daily use. Research shows this 2.0T engine is quite durable, and the revamped version has resolved the oil consumption issue found in older models. Different versions have varying parts, with high-pressure fuel pump models numbered 06L and 06K. Mechanics mention that during cold starts in winter, the turbocharger delays engagement to protect the engine. If you want to replace spark plugs, confirm the heat range parameters as models for the B8 and B9 platforms differ. A friend who flashed the ECU program achieved 240 horsepower, though it might affect the warranty.
