The 1.9-liter turbocharged engine Volvo B4194T was produced at the company's factory from 1997 to 2000 and was installed in the sport versions of the S40 sedan and V40 wagon before the facelift. This power unit was the most powerful in its series and was used in models marked as T4. Modular engine series: B4164S, B4164S2, B4184S, B4184S2, B4204S, and B4204T.
| Exact capacity | 1855 cm³ |
| Power system | injector |
| Engine power | 200 HP |
| Torque | 300 nm |
| Engine block | aluminum R4 |
| Block head | aluminum 16v |
| Cylinder diameter | 81 mm |
| Piston stroke. | 90 mm |
| Compression ratio | 8.5 |
| Engine features | DOHC |
| Hydraulic compensator. | there is no |
| Timing drive | strip |
| Timing phase adjuster | there is no |
| Turbocharging | MHI TD04L-14T |
| What oils to use | 5.5 liters 5W-30 |
| Fuel type | 95 |
| Environmental class | EURO 2 |
| Approximate life expectancy | 250 000 HP |
| City | 13.7 litry |
| Route | 7.0 litry |
| Mixed | 9.3 litry |
The weight of the B4194T engine according to the catalog is 138 kg. The engine number B4194T is located at the junction of the block and the cylinder head. Despite being tuned, this turbocharged engine is reliable and has an impressive lifespan. Many complaints about the engine are related to oil consumption due to a clogged crankcase ventilation system. As it approaches 200,000 km, the main cause of excessive oil consumption becomes turbine shaft wear. The timing belt does not always last the recommended 90,000 km, and its failure can cause valve damage. Weak points of the engine include the fuel pump, control unit, and several sensors.
| S40 I (644) | 1997 - 2000 |
| V40 I (645) | 1997 - 2000 |
The 1.6-liter Volvo B4164S engine was produced by the Swedish company from 1995 to 1999 and installed in base versions of the first generation S40 model or V40 estate. There is a more powerful version of this engine with variable valve timing, designated as B4164S2. Modular engine series: B4164S2, B4184S, B4184S2, B4194T, B4204S, and B4204T.
The 1.8-liter petrol engine Volvo B4184S was produced by the company from 1995 to 1999 and mounted only on the first generation of the S40 sedan and its corresponding V40 estate before restyling. The versions of this engine, B4184S2 and B4184S3, were characterized by a larger piston stroke and correspondingly larger displacement. Modular engine series: B4164S, B4164S2, B4184S2, B4194T, B4204S, and B4204T.
The 2.5-liter turbocharged engine Volvo B5254T6 was produced at the factory in Sweden from 2006 to 2009 and was only mounted in two models of the company: the second generation S80 or the third generation V70. This powertrain was also used in the popular crossover Ford Kuga labeled as HYDB. The Modular engine line also includes units: B5254T, B5254T2, B5254T3, and B5254T4.
The 2.0-liter, 16-valve Volvo B4204S3 engine was produced by the company from 2006 to 2012 and installed in models on the Ford Focus 2 platform, namely the C30, S40, V50, and also in the S80 sedan. This engine, as well as its FlexiFuel version B4204S4, were practically clones of the AODA power unit. The Ford engine range includes: B4164S3, B4164T, B4184S11, and B4204T6.
1.5-liter engine Ford M8DA or Focus 3 1.5 EcoBoost was produced from 2014 to 2019 as a replacement for the previous 1.6-liter engine in models such as the Focus and C-MAX. A similar powertrain under the hood of the Ford Mondeo has its own UNCA index. The 1.5 EcoBoost line also includes engines: - M8MA, - M9DA, and - M9MA.
Mercedes M264 engines with a capacity of 1.5 and 2.0 liters have been installed at the factory in Germany since 2018 and are used in many models with a longitudinal engine layout, such as the C-Class and E-Class. It is an engine with cast iron inserts, and its version with a transverse layout has the index M260. R4 series: M111, M166, M256, M266, M270, M271, M274, and M282.