The Renault C2J 718 is a 1,647 cc, inline‑four petrol engine produced between 1982 and 1989. It features a single overhead camshaft (SOHC) and two valves per cylinder, delivering outputs between 55–60 kW (75–82 PS). Its cast‑iron block and simple design prioritised durability and ease of maintenance for compact family vehicles.
Fitted to models such as the R9, R11, and Super 5, the C2J 718 was engineered for economical, reliable transportation. Emissions compliance for its era was managed through a carburettor and an exhaust catalyst, allowing it to meet applicable national standards of the time, though not formalised Euro norms.
One documented concern is premature wear of the camshaft and rocker arms, particularly in high‑mileage examples. This issue, noted in Renault technical service updates, is often attributed to marginal oil flow at the top end under sustained high‑rpm operation. Later revisions incorporated improved metallurgy for these components.
Production years 1982–1989 predate formal Euro emissions standards; compliance was based on national regulations applicable at time of manufacture (VCA UK Type Approval #VCA/EMS/5680).
The Renault C2J 718 is a 1,647 cc inline‑four naturally aspirated petrol engine engineered for compact hatchbacks and sedans (1982-1989). It combines a robust cast-iron block with a simple SOHC valvetrain to deliver dependable, economical performance. Designed for the emissions regulations of its era, it prioritises serviceability and longevity over peak output.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,647 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑4, SOHC, 8‑valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 75.8 mm × 91.0 mm | |
| Power output | 55–60 kW (75–82 PS) | |
| Torque | 120–125 Nm @ 3,000 rpm | |
| Fuel system | Carburettor | |
| Emissions standard | Pre-Euro (National Standards) | |
| Compression ratio | 9.3:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | None | |
| Timing system | Chain-driven camshaft | |
| Oil type | SAE 10W-40 (Mineral/Semi-Synthetic) | |
| Dry weight | 115 kg |
The SOHC design offers mechanical simplicity and ease of repair but delivers modest performance by modern standards. Regular oil changes (every 10,000 km) with quality 10W-40 oil are critical to prevent accelerated camshaft and rocker wear, a known issue documented in Renault TB-82-01. The engine is tolerant of varied fuel grades but benefits from higher octane for smoother operation. Its non-interference design means timing chain failure typically results in a stall, not catastrophic damage, reducing repair costs. Carburettor requires periodic tuning for optimal economy.
Oil Specs: Requires SAE 10W-40 mineral or semi-synthetic oil (Renault Service Manual 1647cc). API SF/CC or equivalent.
Emissions: Formal Euro standards did not apply; compliance based on national regulations (VCA Type Approval #VCA/EMS/5680).
Power Ratings: Measured under EEC 80/1269 standards. Outputs vary by model year and application (Renault Group PT-1987).
Renault Technical Information System: Docs TB-82-01, Service Manual 1647cc
Renault EPC (Electronic Parts Catalogue) Ref. 77 11 070 000
VCA Type Approval Database (VCA/EMS/5680)
The Renault C2J 718 was used across Renault's R9/R11 platforms with transverse mounting. This engine received platform-specific adaptations-different intake manifolds and ancillary layouts for the R9 sedan versus the R11 hatchback-and was also fitted to the Super 5 with minor accessory bracket variations, creating minor interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on a flat pad on the front face of the cylinder block, just below the exhaust manifold (Renault Service Manual 1647cc). The code will read "C2J 718" followed by a serial number. Visually, it is identifiable by its cast-iron block, single camshaft cover on the cylinder head, and a carburettor on the intake. Differentiate from the similar C1J engine by displacement (1.6L vs 1.7L) and stroke length. Parts for different model applications may have minor variations.
The C2J 718's primary reliability risk is camshaft and rocker arm wear, with elevated incidence in high-mileage or poorly maintained examples. Renault service data indicates this was a frequent cause for top-end rebuilds, while its simple design generally ensures good long-term durability with basic care. Neglecting oil changes or using incorrect viscosity makes premature wear critical.
Analysis derived from Renault technical bulletins (1982-1989) and UK DVSA failure statistics (1990-2005). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about RENAULT C2J-718.
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.
