The Audi BYT or A3 1.8 TFSI 1.8-liter turbo engine was assembled from January to June 2007 and installed on the second generation of the Audi A3, as well as Seat models such as Altea or Toledo 3. This unit was the first representative of the EA888 series and is sometimes referred to as a generation gen0.
EA888 gen1 family: BYT, BZB, CABA, CABB, CABD, CAWA, CAWB, CBFA, CCTA, CCTB.
Specifications
| Production years | 2007 |
| Displacement, cc | 1798 |
| Fuel system | direct injection |
| Power output, hp | 160 |
| Torque output, Nm | 250 |
| Cylinder block | cast iron R4 |
| Block head | aluminum 16v |
| Cylinder bore, mm | 82.5 |
| Piston stroke, mm | 84.2 |
| Compression ratio | 9.6 |
| Features | DOHC |
| Hydraulic lifters | yes |
| Timing drive | chain |
| Phase regulator | on the intake shaft |
| Turbocharging | KKK K03 |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 4.6 |
| Fuel type | petrol |
| Euro standards | EURO 4 |
| Fuel consumption, L/100 km (for Audi A3 2007) — city — highway — combined |
8.7 5.3 6.6 |
| Engine lifespan, km | ~230 000 |
| Weight, kg | 154 |
The engine was installed on:
- Audi A3 2 (8P) in 2007;
- Seat Altea 1 (5P) in 2007;
- Seat Toledo 3 (5P) in 2007.
Disadvantages of the Audi BYT engine
- This engine was produced for only six months and information about its reliability is at least;
- During the modernization, the manufacturer changed the crankcase ventilation system, probably due to its problems;
- All engines in this series have a modest timing chain resource, sometimes less than 100,000 km;
- The network often complains about floating speed due to soot on the intake valves;
- The weak points of the engines of this line include the catalyst, pump and ignition coils.
Frequently asked questions about the Audi BYT
How much power does the Audi BYT make?
The Audi BYT develops 160 hp and 250 Nm of torque.
How much oil does the Audi BYT take and which one?
Engine oil capacity: 4.6 liters. Recommended oil: 5W-30.
Does the Audi BYT have a timing belt or chain?
The Audi BYT uses a timing chain.
Is the Audi BYT turbocharged?
Yes, the Audi BYT is turbocharged (KKK K03).
Does the Audi BYT need valve clearance adjustment?
No, the Audi BYT has hydraulic lifters, so the valve clearances do not need to be adjusted.
How long does the Audi BYT last?
The typical lifespan of the Audi BYT is ~230 000 km with proper maintenance.
What is the fuel consumption of the Audi BYT?
Audi A3 2007: city 8.7, highway 5.3, combined 6.6 L/100 km.
What cars was the Audi BYT installed on?
Audi A3 2 (8P) in 2007; Seat Altea 1 (5P) in 2007; Seat Toledo 3 (5P) in 2007.
What are the common problems of the Audi BYT?
This engine was produced for only six months and information about its reliability is at least. During the modernization, the manufacturer changed the crankcase ventilation system, probably due to its problems. All known problems.





