The Saab B258i 2.5-liter V6 petrol engine was produced in England from 1993 to 1998 and installed in the 900 model in combination with a manual and automatic transmission. This power unit is essentially one of the varieties of the famous Opel X25XE engine.
Saab V6 (GM) family: B258i, B284L, B308E, B308i.
Specifications
| Production years | 1993-1998 |
| Displacement, cc | 2498 |
| Fuel system | distributed injection |
| Power output, hp | 170 |
| Torque output, Nm | 227 |
| Cylinder block | cast iron V6 |
| Block head | aluminum 24v |
| Cylinder bore, mm | 81.6 |
| Piston stroke, mm | 79.6 |
| Compression ratio | 10.8 |
| Features | Bosch Motronic 2.8.1 |
| Hydraulic lifters | yes |
| Timing drive | belt |
| Phase regulator | no |
| Turbocharging | no |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 4.5 |
| Fuel type | petrol |
| Euro standards | EURO 2 |
| Fuel consumption, L/100 km (for Saab 900 1996) — city — highway — combined |
13.2 7.4 9.1 |
| Engine lifespan, km | ~280 000 |
The engine was installed on:
- Saab 900 II (NG) in 1993 – 1998.
Disadvantages of the Saab B258i engine
- The biggest problem here is grease leaks, especially from under the valve covers.
- Very often, oil gets into the candle wells and there are problems starting the engine.
- Also, through a leaky heat exchanger, oil can seep into antifreeze.
- There are a lot of complaints on the network about a broken timing belt and almost always with a bend in the valves.
- The oil receiver is too low and any sump jam will block it.
Frequently asked questions about the Saab B258i
How much power does the Saab B258i make?
The Saab B258i develops 170 hp and 227 Nm of torque.
How much oil does the Saab B258i take and which one?
Engine oil capacity: 4.5 liters. Recommended oil: 5W-30.
Does the Saab B258i have a timing belt or chain?
The Saab B258i uses a timing belt.
Is the Saab B258i turbocharged?
No, the Saab B258i is naturally aspirated.
Does the Saab B258i need valve clearance adjustment?
No, the Saab B258i has hydraulic lifters, so the valve clearances do not need to be adjusted.
How long does the Saab B258i last?
The typical lifespan of the Saab B258i is ~280 000 km with proper maintenance.
What is the fuel consumption of the Saab B258i?
Saab 900 1996: city 13.2, highway 7.4, combined 9.1 L/100 km.
What cars was the Saab B258i installed on?
Saab 900 II (NG) in 1993 - 1998.
What are the common problems of the Saab B258i?
The biggest problem here is grease leaks, especially from under the valve covers. Very often, oil gets into the candle wells and there are problems starting the engine. All known problems.
