The Saab B230FIZD is a 2,290 cc, inline‑four turbocharged petrol engine produced between 1990 and 1993. It features a cast — iron block, aluminum cylinder head, SOHC valvetrain with two valves per cylinder, and Bosch LH — Jetronic 2.4 electronic fuel injection with an integrated idle air control valve. In its standard form, it produced 162 kW (220 PS), offering a significant power boost over the standard B230FIC while retaining Saab's signature torquey character.
Fitted…
All production years (1990–1993) meet Euro 1 emissions standards as per period regulations (EU Directive 88/77/EEC).
The Saab B230FIZD is a 2,290 cc inline‑four turbocharged petrol engine engineered for high-performance executive sedans (1990-1993). It combines Bosch LH-Jetronic 2.4 electronic fuel injection with a single turbocharger to deliver strong, accessible power. Designed to meet Euro 1 standards, it prioritizes performance while adhering to the emissions regulations of its production era.
| 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 | 162 kW (220 PS) @ 5,300 rpm | |
Torque | 300 Nm @ 2,100 rpm | |
Fuel system | Bosch LH-Jetronic 2.4 (electronic) | |
Emissions standard | Euro 1 | |
Compression ratio | 8.5:1 | |
Cooling system | Water‑cooled | |
Turbocharger | Single turbo (Garrett T25) | |
Timing system | Chain-driven | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 180 kg (approx.) |
The Saab B230FIZD was developed by Saab and used exclusively in the high-performance Saab 9000 Aero with longitudinal, front-engine, front-wheel-drive mounting. This engine is a higher-output variant of the B230FIC, featuring unique ECU mapping and potentially a different turbocharger wastegate spring. It received no major platform-specific adaptations beyond those for the Aero model. All variations are documented in Saab technical bulletins.
Engine Finders UK Ltd, which operates EngineCode.uk, can pass your enquiry to engine suppliers in the UK. The service is for vehicles in the United Kingdom, with UK delivery or fitting. This is a commercially connected service, and sending an enquiry does not confirm diagnosis or compatibility.
Diagnostic reminder: If a technician has recommended replacing the engine, you can send an enquiry to engine suppliers in the UK. Confirm the diagnosis first: an engine-code record does not diagnose a fault.
Field reports and technical service bulletins highlight component wear patterns under high-load operation. Adherence to manufacturer service intervals and approved fluid specifications is critical for long-term reliability.
Analysis derived from manufacturer technical service bulletins and industry workshop records. 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
The B230FIZD engine is fundamentally robust, sharing its core architecture with the proven B230FIC. Its main long-term concerns are the vacuum hose network and the turbocharger’s oil feed line. The higher power output also increases wear on the clutch and drivetrain. With proactive maintenance and careful driving, a B230FIZD can be very reliable.
The most frequently encountered issues are leaks in the vacuum hose system, clogging of the turbocharger’s oil feed line leading to turbo failure, failure of the Direct Ignition (DI) cassette, and accelerated wear of the clutch and transmission components due to the higher power output.
The B230FIZD was used exclusively in the Saab 9000 Aero from 1990 to 1993. It is a higher-output variant of the B230FIC engine, specifically tuned for the flagship Aero model. It is always turbocharged with an intercooler.
Yes, but with caution. The B230FIZD is already a highly tuned variant. Further modifications like a boost controller or ECU remap are possible, but the stock internals and turbocharger are operating near their limits. Significant power gains would require upgrading the turbo, intercooler, injectors, and clutch, making it a complex and expensive project.
Official figures for the era are around 11.0 L/100km (26 mpg UK) combined. Real-world fuel economy for a well-maintained B230FIZD in a Saab 9000 Aero is typically 12-14 L/100km (20-24 mpg UK) in mixed driving, heavily influenced by the driver's right foot due to its performance nature.
No. The Saab B230FIZD is a non-interference engine. If the timing chain were to fail, the pistons will not contact the valves, preventing catastrophic internal engine damage. This is a significant design advantage for longevity and reduces the urgency of chain replacement.
Saab specified SAE 10W-40 engine oil with a minimum API SG/CD rating. A good quality 10W-40 semi-synthetic or full-synthetic oil is highly recommended, especially for turbocharged engines, to ensure proper lubrication and prevent sludge buildup in the oil feed line.
Comprehensive technical documentation and regulatory references
EngineCode.uk is operated by Engine Finders UK Ltd. It provides engine-reference information and an optional commercial enquiry service. It is not an official manufacturer website. Check the record's sources and confirm vehicle-specific details before relying on it for parts, repairs or replacement.
Our editorial standard prioritises relevant manufacturer documentation and official regulatory sources. The sources and verification status for a record should be checked alongside the data.
A statement is not verified merely because a source is listed. Where supporting evidence is missing or conflicting, the record should identify that limitation. Please report unsupported or inconsistent information.
Transparency in gaps
A missing or unverified value does not mean the manufacturer has withheld it. We distinguish information not yet verified, information not available to us, and information explicitly not disclosed by the source.
Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
EUR-Lex
EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
UK type-approval authority for automotive products.
Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
WLTP and RDE testing procedures for emissions certification.
GOV.UK: Vehicle Approval
UK compliance and certification requirements for imported and modified vehicles.
VCA Certification Portal
Type-approval guidance and documentation.
Records are subject to review and correction. Source links, dates and verification notes should be read with the technical information. Our Editorial and Sourcing Policy explains our standards and review process.
Found an error or missing source? Report a problem with this page. Include the field or statement concerned and a supporting source if available. You can also email corrections@enginecode.uk.
Copyright and permissions
Images and other material may be protected by copyright. Attribution does not by itself grant permission to reuse material. If you believe material on this site infringes your rights, contact copyrights@enginecode.uk with the page URL and details of your claim. We will review the material and take appropriate action.
Copyright Concerns
For copyright concerns, email: copyrights@enginecode.uk
Our Privacy Policy explains how Engine Finders UK Ltd uses information from visits, vehicle lookups, enquiries and messages. Our Cookie Policy explains cookies and similar technologies and how to change your choices.
For access, correction, or deletion requests, email: gdpr@enginecode.uk
Trademark Notice
All trademarks, logos, and engine codes are the property of their respective owners. Use on this site is strictly for reference and identification.
Ownership and commercial services
EngineCode.uk is owned and operated by Engine Finders UK Ltd. Alongside our reference content, we offer an optional replacement-engine enquiry service through Engine Finders and may identify relevant services provided by businesses connected with us. These commercial connections are disclosed. Using an enquiry service is not required to read our reference content.
Engine Finders UK Ltd operates this website. Our optional enquiry service has a commercial purpose. Our Ownership and Commercial Disclosure explains the relationship between the reference website and that service. Participating suppliers pay a fee or subscription to participate on the network and receive quote requests.
Use this record as a starting point for identification. Specifications and vehicle applications may contain errors or omissions. Confirm the exact engine variant and compatibility using vehicle-specific documentation and a qualified supplier or technician.
All external links open in new tabs. Please verify current availability of resources.