What does Audi 45tfsi mean?
2 Answers
45 represents the vehicle's acceleration, with higher numbers indicating stronger power; TFSI stands for a turbocharged engine that supports fuel stratified combustion technology. A turbocharged engine refers to an engine equipped with a turbocharger. TFSI is an engine technology, meaning Turbo Fuel Stratified Injection, which combines the FSI direct injection engine with a turbocharger. The T indicates the use of turbocharging technology, while the following FSI stands for Fuel Stratified Injection engine, with the S representing stratification. The TFSI engine features both stratified injection and turbocharging, a unique technology of Audi. Currently, almost all Audi vehicles utilize this technology. TFSI maintenance methods include: avoiding sudden acceleration pedal presses after engine startup; not shutting down the engine immediately after prolonged high-speed operation. Taking the Audi Q7 as an example, it is equipped with a 2.0T inline 4-cylinder turbocharged engine with a maximum power of 185 kW and a maximum torque of 370 Nm, paired with an 8-speed automatic transmission. Its drivetrain is front-engine four-wheel drive, and both front and rear suspensions use multi-link independent suspensions.
The other day I went to check out new cars and noticed the Audi 45 TFSI badge is quite common, so I chatted with a friend about what it means. The number 45 is Audi's power level indicator—the higher the number, the stronger the engine performance, roughly corresponding to over 300 horsepower. TFSI stands for Turbocharged Fuel Stratified Injection, meaning the engine enhances power and fuel efficiency through turbocharging and direct fuel injection. This technology delivers more aggressive acceleration, quick responsiveness on highways or mountain roads, and decent fuel economy. I've learned that Audi's naming system is a bit complex, but 45 TFSI is typically used in mid-to-high-end models like the A6 or Q5, making it suitable for those who enjoy driving dynamics or frequently take long trips. Additionally, when choosing it, maintenance costs should be considered—turbo components require regular inspections—but overall, it's far more efficient than older engines. In short, the number represents performance, the letters stand for advanced technology, and together they form Audi's star powertrain combination.
