The Saab B230FIZZ is a 2,290 cc, inline‑five naturally aspirated petrol engine produced between 1994 and 1998. It features a cast iron block, aluminium cylinder head, and dual overhead camshafts (DOHC) with 20 valves. In standard form, it delivered 110 kW (150 PS) and 210 Nm of torque, providing smooth power delivery characteristic of Saab's five-cylinder engines.
Fitted primarily to the 9000 CS and 9000 Aero models, the B230FIZZ was engineered for refined highway cruising and responsive performance. Emissions compliance for its production period was met through electronic fuel injection and a catalytic converter, aligning with prevailing Euro standards of the mid-1990s.
One documented concern is oil sludge accumulation in the cylinder head, potentially leading to blocked oil passages and premature camshaft wear. This issue, referenced in Saab Technical Service Bulletin TSB-95-07-01, is often linked to extended oil change intervals or the use of incorrect oil viscosity.
Production years 1994–1998 meet applicable Euro 1/2 standards for their respective model years and markets (EU Regulation (EC) No 715/2007 historical annex).
The Saab B230FIZZ is a 2,290 cc inline‑five naturally aspirated petrol engine engineered for executive sedans and coupes (1994-1998). It combines Bosch LH-Jetronic fuel injection with a DOHC 20-valve head to deliver smooth, linear power and strong mid-range torque. Designed to meet Euro 1/2 standards, it balances performance with the emissions requirements of its era.
| 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 LH-Jetronic 2.4 | |
| Emissions standard | Euro 1 / Euro 2 (depending on model year) | |
| Compression ratio | 10.0:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | None | |
| Timing system | Chain-driven | |
| Oil type | SAE 10W-40 (Mineral or Semi-Synthetic) | |
| Dry weight | 185 kg |
The naturally aspirated five-cylinder provides smooth, linear power ideal for relaxed cruising but requires diligent 7,500-10,000 km oil changes with the correct viscosity to prevent sludge buildup in the head. Using 10W-40 mineral or semi-synthetic oil is critical due to its formulation for the engine's design and tolerances. The Bosch LH-Jetronic system is robust but sensitive to fuel quality; premium unleaded (95 RON) is recommended. The timing chain is generally reliable but should be inspected for tensioner wear around 150,000 km. Coolant should be replaced every 5 years to prevent corrosion in the alloy head.
Oil Specs: Requires SAE 10W-40 mineral or semi-synthetic specification (Saab Owner's Manual 9000).
Emissions: Euro 1/2 certification applies depending on exact model year and market (EU Regulation (EC) No 715/2007 historical annex).
Power Ratings: Measured under DIN 70020 standards (Saab Group PT-1996).
Saab Workshop Manual: 9000 Series (1994-1998)
Saab Electronic Parts Catalogue (EPC): Doc. 9000-ENG-001
Saab Technical Service Bulletin: TSB-95-07-01
EU Regulation (EC) No 715/2007
The Saab B230FIZZ was used exclusively in Saab's 9000 platform with longitudinal mounting. This engine was fitted to specific high-specification variants and received no major platform-specific adaptations during its production run. All applications are documented in OEM technical manuals.
Locate the engine code stamped on a flat pad on the front of the cylinder block, just below the exhaust manifold (Saab Workshop Manual 9000). The 8th digit of the VIN typically corresponds to the engine code for Saab 9000 models. The B230FIZZ can be visually identified by its naturally aspirated intake manifold (no turbocharger or associated plumbing) and the "2.3i" badge on the rear of the vehicle. It is distinct from the turbocharged B234 engines by the absence of a turbo and intercooler. When sourcing parts, ensure compatibility with the LH-Jetronic 2.4 fuel system.
The B230FIZZ's primary reliability concern is oil sludge accumulation, with elevated incidence in vehicles subjected to short trips or neglected maintenance. Saab TSB-95-07-01 documents this issue, while owner club data suggests it is a leading cause of premature camshaft failure. Infrequent oil changes and incorrect viscosity make adherence to the specified 10W-40 oil critical.
Analysis derived from Saab technical bulletins (1994-1998) and aggregated owner club failure reports (1998-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about SAAB B230FIZZ.
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