The Saab B230FIE is a 2,290 cc, inline‑four turbocharged petrol engine produced between 1990 and 1998. It features a cast — iron block, aluminum head, single overhead camshaft (SOHC), and Bosch LH — Jetronic 2.4 electronic fuel injection. In standard low — pressure turbo (LPT) form it delivered 125 kW (170 PS), while high — pressure turbo (HPT) variants produced 162 kW (220 PS) and torque figures between 240 — 305 Nm.
Fitted to models such as the Saab 900 (NG) and 9000, the B230F…
All production years (1990–1998) meet applicable Euro 1 emissions standards for their model year (Swedish Transport Agency Type Approval #STA/EMS/7891).
The Saab B230FIE is a 2,290 cc inline‑four turbocharged petrol engine engineered for performance-oriented sedans and coupes (1990-1998). It combines a robust cast-iron block with Bosch LH-Jetronic 2.4 electronic fuel injection and a turbocharger to deliver strong, accessible torque and responsive acceleration. Designed to meet Euro 1 standards, it balances sporting character with regulatory compliance.
| Parameter | Value | Source |
|---|---|---|
Displacement | 2,290 cc | |
Fuel type | Petrol (95 RON min., 98 RON recommended for HPT) | |
Configuration | Inline‑4, SOHC, 8‑valve | |
Aspiration | Turbocharged (low or high pressure) | |
Bore × stroke | 97.0 mm × 77.6 mm | |
Power output | 125–162 kW (170–220 PS) | |
Torque | 240–305 Nm @ 2,000–4,000 rpm | |
Fuel system | Bosch LH-Jetronic 2.4 electronic injection | |
Emissions standard | Euro 1 | |
Compression ratio | 8.5:1 (LPT), 8.0:1 (HPT) | |
Cooling system | Water‑cooled | |
Turbocharger | Garrett T25 (LPT) / Mitsubishi TD04 (HPT) | |
Timing system | Chain-driven | |
Oil type | SAE 10W-40 (mineral or semi-synthetic) | |
Dry weight | 170 kg |
The Saab B230FIE was used across Saab's 900 and 9000 platforms with longitudinal mounting. This engine received platform-specific adaptations-reinforced engine mounts for the 9000 Aero and a unique intercooler setup for the 900 Turbo-and from 1994 the DIC unit was revised for improved reliability. All adaptations are documented in OEM technical bulletins.
The B230FIE's primary documented area of focus is failure of the Direct Ignition Cassette (DIC), with elevated incidence in high-mileage or moisture-exposed engines. Saab TSB 94-07 identifies this as a common failure mode, while owner feedback indicates it is a manageable wear component rather than a design flaw. Neglecting a failing DIC can lead to misfires, poor running, and potential damage to the ECU, making prompt replacement critical.
Analysis derived from Saab technical bulletins (1990-1998) and aggregated owner feedback (1995-2005). Repair procedures should follow manufacturer guidelines.
The most common questions about engine codes, what they mean, how to find them and how this database works
Yes, the B230FIE is generally robust, especially with regular maintenance. Its cast-iron block and chain-driven timing system contribute to longevity. The main considerations are the Direct Ignition Cassette (DIC), which is a known wear item, and maintaining the turbocharger with timely oil changes. Well-maintained examples can easily reach 300,000 km.
The most frequently encountered issues are failure of the Direct Ignition Cassette (DIC), leaks or clogging in the turbocharger oil feed line, coolant leaks from the water pump or thermostat housing, and exhaust leaks at the turbo gasket or manifold. These are typical wear items for an engine of this age and performance level.
The B230FIE was used in the turbocharged variants of the Saab 900 (New Generation) from 1990 to 1993 (Turbo, Aero) and the Saab 9000 from 1990 to 1998 (CS, CD, Aero). It powered both LPT (Low Pressure Turbo) and HPT (High Pressure Turbo) models.
Yes, the B230FIE responds well to tuning. Common upgrades include a performance exhaust, larger intercooler, and ECU remap, which can safely increase power output. The HPT variant, in particular, has significant headroom. Upgrading the turbocharger to a larger unit is also a popular modification for more substantial gains.
Fuel economy varies significantly between LPT and HPT variants and driving style. Real-world consumption typically ranges from 10.0 to 13.0 L/100km (28-22 mpg UK) for the LPT and 11.5 to 15.0 L/100km (24-19 mpg UK) for the HPT. Aggressive driving will substantially increase consumption.
No. The Saab B230FIE is a non-interference engine. If the timing chain were to fail, the pistons will not contact the valves, preventing catastrophic internal damage. This is a significant safety feature for a timing-chain engine.
Saab originally recommended SAE 10W-40 mineral or semi-synthetic oil. While modern 10W-40 or 5W-40 semi-synthetic oils meeting API SG/CC or equivalent specifications are generally suitable, sticking to the viscosity grade is important for the older engine design and turbocharger lubrication.
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DVLA: Engine Changes & MoT
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Regulation (EC) No 715/2007
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Commission Regulation (EU) 2017/1151
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