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.
| Exact capacity | 1731 cm³ |
| Power system | injector |
| Engine power | 115 HP |
| Torque | 165 nm |
| Engine block | aluminum R4 |
| Block head | aluminum 16v |
| Cylinder diameter | 83 mm |
| Piston stroke. | 80 mm |
| Compression ratio | 10.5 |
| Engine features | DOHC |
| Hydraulic compensator. | tak |
| Timing drive | belt |
| Timing phase adjuster | there is no |
| Turbocharging | there is no |
| What oils to use | 5.4 liters 5W-40 |
| Fuel type | 92 |
| Environmental class | EURO 2 |
| Approximate life expectancy | 320 000 HP |
| City | 10.4 litry |
| Route | 6.0 litry |
| Mixed | 8.0 litry |
The engine weight of B4184S according to the catalog is 130 kg. The engine number B4184S is located at the junction of the block and the cylinder head. This modification does not have a phase regulator, making it the simplest and most reliable engine in the lineup. Due to clogged crankcase ventilation, there is often a small oil consumption issue here. The timing belt lifespan often amounts to less than 90,000 km, and in case of valve failure, it can cause damage. It can also bend valves if a broken generator belt gets into the timing belt. In case of engine failures, it is necessary to check the integrity of the camshaft position sensor rotor.
| S40 I (644) | 1995 - 1999 |
| V40 I (645) | 1995 - 1999 |
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