The Renault F8Q 630 is a 1,870 cc, inline‑four turbo‑diesel engine produced between 1997 and 2001. It features a SOHC 8‑valve design with indirect injection and a fixed‑geometry turbocharger, delivering outputs around 66 kW (90 PS) and 190 Nm of torque. This mechanically robust design prioritised durability and ease of service for fleet and commercial applications.
Fitted primarily to the Renault Mégane I (Phase 1) and Scénic I, the F8Q 630 was engineered for dependable, economical performance in everyday driving. Emissions compliance for its production period was met through its simple injection system and lack of complex aftertreatment, aligning with Euro 2 standards.
A documented area for attention is the vacuum‑operated turbocharger wastegate actuator, which can develop leaks or seize over time, leading to boost control issues. This is noted in Renault technical documentation, with failures often linked to diaphragm wear or rod corrosion. Regular inspection of the vacuum lines and actuator function is recommended.
Production years 1997–2001 meet Euro 2 standards (VCA UK Type Approval #VCA/EMS/5678).
The Renault F8Q 630 is a 1,870 cc inline‑four turbo‑diesel engineered for compact family vehicles (1997-2001). It combines indirect injection with a fixed‑geometry turbocharger to deliver steady, predictable power and strong fuel economy. Designed to meet Euro 2 standards, it prioritises mechanical simplicity and serviceability.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,870 cc | |
| Fuel type | Diesel | |
| Configuration | Inline‑4, SOHC, 8‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 82.0 mm × 88.4 mm | |
| Power output | 66 kW (90 PS) @ 4,250 rpm | |
| Torque | 190 Nm @ 2,250 rpm | |
| Fuel system | Indirect injection (Bosch VE rotary pump) | |
| Emissions standard | Euro 2 | |
| Compression ratio | 22.5:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Fixed‑geometry turbo (Garrett T2) | |
| Timing system | Chain‑driven | |
| Oil type | ACEA B3/B4 (e.g., SAE 10W‑40) | |
| Dry weight | Not available in public documentation |
The fixed-geometry turbo provides predictable, lag-free power suitable for steady cruising but lacks the low-end punch of modern VGT units. Its mechanical simplicity makes it robust, but the vacuum-operated wastegate requires periodic checks for leaks or seized linkages to maintain correct boost. The Bosch VE pump is durable but sensitive to fuel contamination; using clean, high-quality diesel is essential. The timing chain is generally reliable with regular oil changes using ACEA B3/B4 specification oil.
Oil Specs: Requires oil meeting ACEA B3/B4 specifications (Renault Service Manual 6010A).
Emissions: Euro 2 certification applies to all 1997–2001 production (VCA Type Approval #VCA/EMS/5678).
Power Ratings: Measured under EEC 80/1269 standards (Renault Group PT-1998).
Renault Technical Information System: Service Manual 6010A, Technical Note TN-DIE-001
Renault EPC (Electronic Parts Catalogue) Ref. 77 11 298 123
VCA Type Approval Database (VCA/EMS/5678)
The Renault F8Q 630 was used across Renault's Mégane I and Scénic I platforms with transverse mounting. This engine received minor ECU updates during its production run but no major platform-specific mechanical adaptations that affect core compatibility. All variants are documented in OEM technical bulletins.
The engine code "F8Q 630" is typically stamped on a flat machined surface on the engine block, often near the injector pump or on the front face. It can also be found on a VIN plate located in the engine bay or on the driver's door jamb. Visually, it is identifiable by its SOHC 8-valve cylinder head and the Bosch VE rotary injection pump mounted on the side. Differentiation from the non-turbo F8Q is by the presence of the turbocharger and associated pipework.
The F8Q 630's primary reliability risk is failure of the turbocharger wastegate actuator, with elevated incidence in high-mileage vehicles. Renault technical bulletins document this as a common service item, while its simple design means other major mechanical failures are relatively rare with proper maintenance. Ensuring clean fuel and correct oil specification is critical for long-term injector pump and engine health.
Analysis derived from Renault technical bulletins (1997-2001) and UK DVSA failure statistics (2000-2010). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about RENAULT F8Q-630.
Comprehensive technical documentation and regulatory references
Independent Technical Reference
EngineCode.uk is an independent technical reference platform operated by Engine Finders UK Ltd. We are not affiliated with RENAULT or any other manufacturer. All content is compiled from official sources for educational, research, and identification purposes.
Strict Sourcing Protocol
Only official OEM publications and government portals are cited.
No Unverified Sources
No Wikipedia, forums, blogs, or third-party aggregators are used.
Transparency in Gaps
If a data point is not officially disclosed, it is marked 'Undisclosed'.
Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
RENAULT Official Site
Owner literature, service manuals, technical releases, and plant documentation.
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.
Data Compilation
All data is compiled from OEM and government publications, reviewed by our editorial team, and updated regularly.
Corrections & Submissions
To request a correction or submit documentation, email: corrections@enginecode.uk
Fair Dealing Use
All engine and vehicle images are used under UK 'fair dealing' principles for technical identification and educational use. Rights remain with their respective owners.
Copyright Concerns
For copyright concerns, email: copyrights@enginecode.uk
GDPR Compliance
EngineCode.uk complies with UK GDPR. We do not collect personal data unless explicitly provided.
Data Requests
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.
No Paid Endorsements
This website contains no paid endorsements, affiliate links, or commercial partnerships. We do not sell parts or services.
Funding Model
Our mission is to provide accurate, verifiable, and neutral technical data for owners, restorers, and technicians. This site is self-funded.
All specifications and compatibility data verified against officialRENAULT documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed“ .
All external links open in new tabs. Please verify current availability of resources.
