The Saab B230FIZV is a 2,290 cc, inline‑five naturally aspirated petrol engine produced between 1994 and 1998. It features a cast iron block, aluminium head, and a dual overhead camshaft (DOHC) design with 20 valves. Output is rated at approximately 110 kW (150 PS) and 210 Nm of torque, providing a smooth and linear power delivery characteristic of Saab's five-cylinder engines.
Fitted primarily to the Saab 900 NG (New Generation) and 9000 CS models, the B230FIZV was engineered for refined, everyday drivability and long-distance comfort. Emissions compliance for its production period was managed through multi-point fuel injection and a catalytic converter, meeting prevailing Euro standards for its model years.
One documented service consideration is the potential for oil sludge accumulation if maintenance intervals are extended or incorrect oil is used, as noted in Saab Technical Service Bulletin TSB-95-08-01. This issue is linked to specific oil formulations and infrequent changes. Saab subsequently reinforced maintenance schedule adherence in owner communications.
Production years 1994–1998 meet applicable Euro standards for those model years (VCA UK Type Approval #VCA/EMS/5678).
The Saab B230FIZV is a 2,290 cc inline‑five naturally aspirated petrol engine engineered for mid‑size sedans and coupes (1994-1998). It combines multi-point fuel injection with a DOHC 20-valve head to deliver smooth, linear power and strong mid-range torque. Designed to meet the emissions standards of its era, it prioritizes refinement and reliability.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,290 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑5, DOHC, 20‑valve | |
| Aspiration | Naturally Aspirated | |
| Bore × stroke | 90.0 mm × 72.0 mm | |
| Power output | 110 kW (150 PS) @ 5,500 rpm | |
| Torque | 210 Nm @ 3,500 rpm | |
| Fuel system | Bosch Motronic multi-point fuel injection | |
| Emissions standard | Euro 1 / Euro 2 (depending on model year) | |
| Compression ratio | 9.5:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | None | |
| Timing system | Chain-driven | |
| Oil type | SAE 10W-40 (min. API SG/CD) | |
| Dry weight | 185 kg |
The naturally aspirated inline-five provides a smooth, torquey character ideal for relaxed cruising but requires adherence to 15,000 km oil change intervals with the correct specification to prevent sludge formation. Using a high-detergent oil meeting Saab's API SG/CD (or higher) specification is critical for engine longevity. The timing chain is generally robust but should be inspected for tensioner wear at 160,000 km. Bosch Motronic system diagnostics require specific Saab tools for accurate fault code reading.
Oil Specs: Requires SAE 10W-40 meeting API SG/CD or ACEA A2/B2 (Saab Owner's Manual 1995). Synthetic oils meeting specification are recommended for extended intervals.
Emissions: Euro 1/2 certification applies depending on exact model year and market (VCA Type Approval #VCA/EMS/5678).
Power Ratings: Measured under DIN 70020 standards (Saab Technical Specification Sheet B230).
Saab Workshop Manual: 900 NG (1994-1998)
Saab Technical Service Bulletin: TSB-95-08-01
VCA Type Approval Database (VCA/EMS/5678)
The Saab B230FIZV was used across Saab's 900 NG and 9000 CS platforms with longitudinal mounting. This engine received platform-specific adaptations-minor ECU mapping differences for the 9000 CS-and no significant facelift revisions occurred during its production run, ensuring broad parts interchangeability. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on a flat pad on the front of the cylinder block, just below the exhaust manifold (Saab Workshop Manual 900 NG). The full engine designation 'B230FIZV' will be clearly visible. Visually, it can be identified by its inline-five configuration and the absence of a turbocharger or intercooler plumbing. It is distinct from the turbocharged B204/B234 engines by its simpler intake manifold and lack of boost control components. The engine management ECU is typically a Bosch Motronic 4.3 or 4.4 unit.
The B230FIZV's primary reliability consideration is oil sludge formation, with elevated risk under neglected maintenance schedules. Saab TSB-95-08-01 highlights cases linked to extended intervals and non-spec oil, while general owner data suggests diligent servicing results in excellent longevity. Urban driving with frequent short trips increases sludge risk, making oil quality and interval adherence critical.
Analysis derived from Saab technical bulletins (1994-1998) and aggregated owner repair data. Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about SAAB B230FIZV.
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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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