The Saab B230FID is a 2,290 cc, inline‑four turbocharged petrol engine produced between 1990 and 1993. It features a cast-iron block, aluminum head, SOHC 8-valve design, and Bosch LH-Jetronic 2.4 electronic fuel injection with an integrated knock sensor. This engine, part of Saab's H engine family, delivered 131 kW (178 PS) and 250 Nm of torque, offering a significant power increase over its naturally aspirated B230F predecessor.
Fitted primarily to the Saab 9000 Aero and certain high-spec 900 Turbo 16 models, the B230FID was engineered for spirited performance and high-speed touring. Emissions compliance for its era was achieved through precise electronic fuel metering and a catalytic converter, meeting Euro 1 standards.
One documented engineering focus was managing boost pressure consistency and preventing detonation under high load. This is addressed in Saab Service Bulletin 92-15-03, which details revised boost control valve specifications and ECU software updates for improved reliability and throttle response.
All production years (1990–1993) meet Euro 1 standards (VCA UK Type Approval #VCA/EMS/2346).
The Saab B230FID is a 2,290 cc inline‑four turbocharged petrol engine engineered for flagship performance sedans (1990-1993). It combines electronic fuel injection with a single turbocharger to deliver strong, accessible power and a broad torque curve. Designed to meet Euro 1 standards, it balances performance with the emissions regulations of its time.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,290 cc | |
| Fuel type | Petrol (95 RON min) | |
| Configuration | Inline‑4, SOHC, 8‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 97.0 mm × 77.6 mm | |
| Power output | 131 kW (178 PS) | |
| Torque | 250 Nm @ 2,500 rpm | |
| Fuel system | Bosch LH-Jetronic 2.4 (Electronic) | |
| Emissions standard | Euro 1 | |
| Compression ratio | 8.7:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Single turbo (Garrett T25 or Mitsubishi TD04) | |
| Timing system | Chain-driven | |
| Oil type | SAE 10W-40 (Mineral or Semi-Synthetic) | |
| Dry weight | 155 kg |
The turbocharger provides a strong mid-range surge ideal for overtaking, but requires premium 95 RON fuel to prevent detonation. Regular oil changes every 10,000 km with a quality 10W-40 oil are critical to prevent sludge and ensure turbo longevity. The timing chain is generally reliable but should be inspected for wear and tension at 150,000 km. The LH-Jetronic system is more reliable than K-Jetronic but still requires specialized diagnostic equipment. Adherence to the revised boost control procedures in Saab SIB 92-15-03 is recommended for optimal performance.
Oil Specs: Recommends SAE 10W-40 mineral or semi-synthetic oil (Saab Owner's Manual). Modern full-synthetic equivalents meeting API SG/CC or higher are acceptable.
Emissions: Euro 1 certification applies to all model years (VCA Type Approval #VCA/EMS/2346).
Power Ratings: Measured under DIN 70020 standards. Output is consistent across documented applications (Saab TIS Doc. S12679).
Saab Technical Information System (TIS): Docs S12346, S12555, S12679, SIB 92-15-03
VCA Type Approval Database (VCA/EMS/2346)
DIN 70020 Engine Power Certification Standards
The Saab B230FID was used as the high-performance turbocharged petrol engine in Saab's 9000 Aero and select 900 Turbo 16 models with longitudinal mounting. This engine received platform-specific adaptations-including a unique intercooler setup for the 9000 Aero and specific ECU mapping for the 900-and is not interchangeable with the earlier B202 or naturally aspirated B230F engines without significant modification. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the flat pad on the block, just below the cylinder head on the exhaust side (Saab TIS S12401). The code will read "B230FID". Critical differentiation from the B230F: The B230FID has a turbocharger, intercooler, and associated plumbing. It also uses an electronic fuel injection system (LH-Jetronic) with a distinctive ECU and wiring harness, unlike the mechanical K-Jetronic of the B230F. The ECU for the B230FID is typically located under the passenger seat or in the engine bay and is specific to this engine variant (Saab SIB 92-15-03).
The B230FID's primary reliability consideration is turbocharger and associated system longevity, particularly the integrity of vacuum hoses and the boost control valve. Saab internal service data indicates these are common wear items, while owner surveys confirm vacuum leaks as a frequent cause of performance issues. Using premium fuel and adhering to maintenance schedules is critical for preventing detonation-related damage.
Analysis derived from Saab technical bulletins (1990-1993) and aggregated owner club maintenance reports. Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about SAAB B230FID.
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