Audi has a wide selection of engines, with some engines only being offered on certain models. For the A3, you may choose between a 30 TFSI, 30 TDI, 35 TFSI, 35 TDI, 40 TFSI, and 40 TDI. What do all the numbers represent, even though the TFSI abbreviation stands for a gasoline engine and the TDI stands for a diesel engine?
The Audi changed its previous numerical badging system, which used the difficult coding format and comprised of the letters “2.0” to denote an engine with a 2.0-liter displacement, with a new system in the fall of 2017.
This system just considers the power output and ignores the engine size. Simply said, the engine’s power decreases as the number decreases. So even if a 35 TFSI is a 1.5-liter gasoline engine and a 35 TDI is a 2.0-liter diesel engine, both of them generate about the same amount of power. Are you following?
All of this might seem a little pointless, but it makes sense why the German firm decided to adopt this new branding scheme. It all comes down to the reality that an engine’s size no longer directly affects how much power it can generate. A conventional 1.4-litre engine cannot match the power of a compact, turbocharged 1.0-litre engine.
In This Article...
The meaning of Audi 35 TFSI
Make sure you receive the engine you desire by understanding what the labels on your Audi imply. Naturally, the majority of auto dealers will prominently designate vehicles with their fuel type, but understanding the manufacturer’s own shorthand might be useful nonetheless.
What does TFSI stand for?
Every gasoline-powered Audi vehicle has the TFSI badge, whereas TDI is the emblem for diesel vehicles. The acronym TFSI, which stands for “Turbocharged Fuel Stratified Injection,” designates a turbocharged gasoline engine. Audi used to sell ‘FSI’ engines, which lacked turbochargers, for about 15 to 20 years.
Since the fall of 2017, Audi cars frequently have a number before the TFSI or TDI logo. The power of the car is indicated by these two numerals, which range from 25 to 70. Audi claims that the number is there to make it simpler to compare gasoline or diesel, hybrid, and electric vehicles. It has nothing to do with the size of the engine or the amount of horsepower you get. When ordering a new Audi, you can choose to have the badge removed if you’d like.
TFSI vs TSI
The only brand in the Volkswagen Group to utilize ‘TFSI’ emblems is Audi; the majority of the other brands use ‘TSI’. As engines are frequently transferred between brands without any alterations, there tends to be no distinction between the two in more recent vehicles.
TFSI was utilized on belt-driven engines and TSI on chain-driven engines in some earlier cars, but it doesn’t seem like that’s the case now.
Audi TFSI e engines
An Audi TFSI e engine isn’t just a regular petrol engine despite the small “e” that is added. You’ll notice it if you’re gazing at the Audi Q5 TFSI e or another of the brand’s numerous plug-in hybrid (PHEV) vehicles because it denotes that the vehicle is a PHEV.
In this case, a battery, one or more electric motors, and a gasoline engine are combined. Typically, a fully charged battery will provide at least 30 miles of electric range, improving fuel economy and lowering operating expenses.
Audi TFSI engine problems
The Audi TFSI engine has generally proven to be dependable, but like with all engines, proper and appropriate maintenance is the secret to longevity. Higher-than-average oil consumption in pre-2012 TFSI engines could be unimportant or, in rare situations, a hint that the engine’s piston rings are perhaps worn. Although recirculation valves and injectors appear to be components to watch out for, TFSI and TSI engines are generally known for their dependability.
What does TFSI in an Audi mean?
The turbo fuel stratified injection engine is Audi’s most often used engine (TFSI). When gasoline is pressure-injected into the engine’s combustion chamber to provide an immediate charge, this is referred to as the turbo aspect.
The TFSI engines’ direct fuel injection combined with turbo or supercharging technology results in a powerful ride while using up to 15% less gasoline than a V6 engine.
So how does it function? Direct fuel injection improves efficiency and responsiveness by eliminating heat from the intake air, which raises compression and eliminates knock.
What distinguishes a 35 TFSI from a 40 TFSI?
With the introduction of mid-series 40 TFSI and 40 TFSI S-line versions, which start at $53,900 and $59,400 plus on-road expenses, respectively, AUDI Australia has strengthened its essential Q3 premium small SUV lineup.
The 40 TFSI is positioned above the base 35 TFSI, which has an on-road price of $46,400 plus. It offers a number of extra incentives, such as a larger engine, Audi’s quattro all-wheel-drive system, and a number of other standard features.
The 2.0-liter four-cylinder turbocharged petrol engine in the 40 has more power and torque than the front-drive 35 TFSI’s 110kW/250Nm 1.4-liter turbo-petrol engine, giving it a stronger presence.
The Q3 40 TFSI can accelerate to 100 km/h from a complete stop in 7.8 seconds thanks to a seven-speed automatic transmission that distributes power to all four wheels.
Additionally, it can achieve a combined cycle fuel efficiency of 8.3 liters per 100 km and release 188 grams of CO2 per kilometer.
Due to its distinctive 19-inch alloy wheels and fully body-colored paint finish, the 40 TFSI can be identified from the 35 TFSI.
With its 20-inch Audi Sport alloy wheels, rear window privacy glass, and S-line exterior package, the more costly 40 TFSI S-line goes a step further.
Leather upholstery, dual-zone climate control, ambient lighting, cloth headlining, a 10.1-inch touchscreen MMI navigation and infotainment system, DAB+ digital radio, a six-speaker audio system, a 10.25-inch digital instrument cluster, four USB ports, and Qi wireless phone charging are all included in the high standard cabin specification of the 35 TFSI and 40, respectively.
Along with keyless entry/start, wireless Apple CarPlay, an electronic tailgate with gesture control, an auto-dimming rearview mirror, a multifunction leather-covered steering wheel with shift paddles, and Audi drive select, the new mid-range model also includes these features.
The additional $5500 for the S-line adds exterior improvements as well as S-embossed leather sports seats, stainless-steel sports pedals, brushed aluminum inlays, a larger Virtual Cockpit display (12.3 inches), contrast stitched floor mats, illuminated door sills, a leather-wrapped flat-bottom steering wheel, and a premium 10-speaker audio system.
Autonomous emergency braking with bicycle and pedestrian recognition, lane-departure warning, lane-change warning, rear cross-traffic assist, tyre pressure monitoring, hill-descent control, all-around parking sensors, and a reversing camera are among the safety features on the 40 TFSI.
A 360-degree camera, high-beam assist, park assist, auto-dimming exterior mirrors, and adaptive cruise aid are all included with the S-line model.
With a starting price of $89,900 plus on-roads, the high-performance RS Q3 sits at the top of the Q3 lineup and is more than $30,000 more expensive than the 40 TFSI S-line. It has a 2.5-liter, five-cylinder, 294kW/480Nm engine.
Audi sold 997 units of the Q3 in the first four months of 2020, trailing the category leader, the BMW X1, by just nine units (1006).
What distinguishes a 30 TFSI from a 35 TFSI?
The badges on future Audi cars will no longer indicate engine size but rather engine power.
According to Audi, the change is intended to reflect the added performance provided by electrified vehicles, which include hybrids, plug-in hybrids, and completely electric vehicles, and to simplify for purchasers the range’s definition.
The badges on the back of the automobiles will now display a new number between 30 and 70, even if the models’ names themselves won’t change (the Audi Q5 will still be called the Audi Q5, for instance). The power of an automobile’s engine determines what number it receives.
This is how the complete naming scheme is divided down:
- Models with 107-127 horsepower will have a “30” emblem.
- Models with 145-159 horsepower will have the badge “35.”
- Models with 165-198 horsepower will have a “40” badge.
- Models with 223-244 horsepower will have a “45” emblem.
- Models with 278-304 horsepower will have a “50” badge.
- Models with 423-449 horsepower will have a “60” badge.
- Models with 529 horsepower or more will be labeled as “70.”
Although Audi hasn’t released power brackets for those models, it’s anticipated to be used for vehicles with 328-468 horsepower. There will also be a 55-badged range of automobiles. The standard TDI, TFSI, or e-tron badges will still be used to indicate if a car has a diesel, gasoline, or electric powertrain.
What do the numbers 35 and 40 on an Audi mean?
Each of the numerals will be placed next to any existing TFSI, TDI, G-tron, or E-tron badges. You may be able to somewhat understand the complex new nomenclature by referring to the chart below: 30 = 109-128 hp (81-96 kW) 35 = 147-160 horsepower (110-120 kW) 40 = 167-201 hp (125-150 kW)
What is an Audi 40 TFSI?
the vehicle With 201 horsepower, the 40 TFSI provides a significant performance improvement over the 35 TFSI (0-62 mph takes 7.1 seconds), without significantly raising operating expenses; officially, it gets around 45 mpg. Additionally, a sleek S tronic automatic transmission is included.
Do Audi TFSI engines work well?
Overall, we’d say “yeah”! It is obvious that the 2.0 TFSI engine must be at least somewhat dependable because it has been utilized in numerous models across numerous continents for many years.
Another question is whether it can be trusted in comparison to its rivals. Over 50,000 warranty direct policies are used to gather the data for the Warranty Index.
There are only 2 Audi vehicles on the top 100 list at the moment. No specs are provided, although both of these are compatible with the 2.0 TFSI engine. Additionally, the TT, which ranks 44th most trustworthy, is the highest-ranking Audi.
The 2.0 TFSI engine is often available in Audi’s medium- to large-sized vehicles, including the A3, A4, A5, and A6. These automobiles compete directly with models from the Mercedes C and E Class and the BMW saloon lineup.
What distinguishes TSI and TFSI from one another?
What actually separates the TSI and TFSI, then? The gist of the response is that there aren’t many differences, but there are a few. To begin with, TSI stands for “Fuel Stratified Injection and Turbo Stratified Injection are both abbreviations for FSI. Both Volkswagen and Audi direct fuel injection engines fall under this. Unbelievably, TFSI is an acronym for “Stratified Turbo Fuel Injection.
Is TFSI superior to TDI?
A 2.0ltr Q5 S Line Plus in Mythos Black with a black pack and titanium wheels, as well as a few additional extras to make life with it a little nicer, is pretty much what we’ve decided to go with. Our Discovery 3 has been with us for seven years, and we typically retain our cars for at least five years. We would rather buy a car outright than finance it through a PCP or lease.
Which should I choose: the tdi or the tfsi? We travel 6k miles year on average, about 30% of which is within the city and the rest is spent on lengthy trips with the kids and the annual family vacation. Normally, getting a diesel engine would cost more, but in this case, the price was the same for both. The tdi’s obvious advantage is better economy, although Audi’s official statistics show that it is slower than the tfsi. We wouldn’t travel far enough to benefit from diesel, so if the tfsi were less expensive to purchase, it would be a no-brainer.
Beyond the obvious advantages of performance over economy, what are the disadvantages of each engine?
TFSI has a twin turbo?
The 4.0-liter V8, which drives the top-of-the-line Audi A8, is at the top of the TFSI mountain. This twin-turbo engine generates 450 horsepower and 325 ft-lbs of torque when mated to an automatic transmission with an 8-speed shiftable.
What does 30 on an Audi mean?
Since the end of 2017, Audi has changed the way its models are badged to reflect the power output.
It basically means that the engine size is no longer visible, if you haven’t noticed this before on the back of an Audi. This “litre” badging, e.g. “2.0,” is changed to a number between 25 and 70 that denotes the power output.
This approach, which at first glance may seem complex, was put in place to make it simpler for purchasers to compare the power output of electric and plug-in hybrid vehicles with traditional petrol and diesel ones.
As we’ve mentioned the number badges varies from 25 to 70, depending on the power output, with the number rising in increments of five. The smaller the number, the less power it has, meaning higher numbers have more power. For each number, there is a range of outputs, so if it’s a ’30 TFSI’ that means it can have between 108bhp and 129bhp, for example.
The fuel designation follows. Therefore, if it says TFSI, it’s a petrol engine, and if it says TDI, it’s a diesel engine. A plug-in hybrid will have the designation “TFSI e,” while an all-electric vehicle will have the designation “e-tron.”
It’s time to understand the strength behind that number. The car is identified by the number on the left, along with the corresponding power outputs.
Please be aware that the “RS,” “R,” and “S” versions do not have this branding, though you can request that it be removed at the manufacturer if you don’t like it.
What year Audi A4 is most reliable?
It is generally acknowledged that 2001 is the most dependable year for the Audi A4. The original B5 was produced until this year, and if you can find one with the 1.9 TDI, it’s worth buying. The 1.9 TDI is an extremely dependable engine; some of them have been driven 500,000 miles while receiving routine maintenance and are still on the road.
The 2001 Audi A4’s only drawback is that it lacks some of the more modern equipment seen in more recent models. 2010 is a fantastic year to look at if you’re seeking for something with improved technology. Around that time, Audi was making some excellent vehicles and received the fewest complaints annually.
In terms of dependability, Audi has experienced some ups and downs over the years, but they appear to be returning to the correct track. If you are considering a new A4, I wouldn’t worry about it surviving up to more than 150,000 kilometers.
What Audi A4 years to avoid?
If you’re considering the Audi A4, you should steer clear of 2011 and 2014. Compared to the other years, these had the most complaints. The 2011 A4’s terrible oil consumption is the main issue that has been brought up.
For the 2011 model year, the A4’s oil system became unnecessarily complicated, which caused it to use oil significantly more quickly than other vehicles. As a result, the car eventually runs out of oil. Due to insufficient lubrication, a car with low oil can suffer more engine damage.
Because replacing the oil system in an A4 from 2011 or 2014 would cost roughly $6,000, many people choose to replace the engine instead. The entire engine has to be taken apart in order to be repaired, which takes a lot of time and increases the cost for the business.
Which Audi A4 engine is best?
The 1.9L TDI engine is the greatest one you can purchase for an Audi A4. This excellent diesel engine generates 228 pound-feet of torque and 130 horsepower. Even while it might not seem like much, that is a fantastic choice for the A4, a compact car.
The 1.9L TDI engine excels in this regard. These little diesel motors are some of the most durable ones ever made. There are several of them still on the road today who have driven more than 300,000 miles, and some of them have exceeded 500,000. If they choose to swap engines, many consumers opt to replace the gasoline engines in their A4s with the 1.9L TDI.
Although it’s an older option, the A4’s 1.9L engine has been reliable over the years. If you’re considering an Audi and want it to survive longer, you should think about choosing a diesel model because they have better gas mileage and a longer lifespan than their gasoline counterparts.