What does 45TFSI mean for the Audi A6L?
3 Answers
TFSI stands for Turbo Fuel Stratified Injection technology. Here is some relevant information: 1. The earliest Audi models would have labels such as 1.8TFSI, 2.0TFSI, or 3.0TFSI on the right side of the trunk to indicate the engine displacement. Later, to differentiate engine power and acceleration, the displacement labels were changed to G-values, such as 30TFSI, 35TFSI, 40TFSI, 45TFSI, and 50TFSI. 2. The G-value is calculated as the average acceleration (a) for achieving 0-100 km/h multiplied by 10. Taking the new Audi 3.0TFSI and 2.0T high-power engines as examples, the 0-100 km/h acceleration time is 6.2 seconds. The average acceleration is calculated as a = v/t = (100,000/3,600)/6.2 = 4.48. Using the formula, the G-value = 4.48 * 10 = 44.8, rounded to the nearest whole number, 45. Therefore, the new tail badge for the Audi 3.0TFSI and 2.0TFSI high-power engines is 45TFSI, no longer using displacement-based labels.
45TFSI is a performance designation in Audi's naming system, where the number 45 indicates that the vehicle's power level is in the upper-middle range. TFSI stands for Turbo Fuel Stratified Injection, which essentially means a turbocharged gasoline engine with direct fuel injection technology, making the car both fuel-efficient and powerful. Taking the Audi A6L as an example, the 45 version typically uses a 2.0-liter engine, delivering around 250 horsepower, which is significantly faster than the 190 horsepower of the 40 version. I find this system's acceleration responsive, making highway overtaking effortless. Audi uses numerical grading to help buyers quickly identify which model has stronger performance, though the 45 might have slightly higher fuel consumption in city driving, but it's more than adequate for daily use.
I own an Audi A6L, specifically the 45TFSI model, which has been running smoothly for several years. The '45' doesn't mean a 45-liter displacement, but indicates higher power compared to the base model, featuring an enhanced 2.0T engine that delivers quicker acceleration. The throttle response is sharp during daily driving, and it remains stable with low noise levels on the highway. I've compared it with the 40 version, and the 45 performs more dynamically during starts and overtaking, though it consumes slightly more fuel, averaging around 8-9 liters per 100 km. This naming convention is designed to simplify model classification during car selection, making it highly practical.
