The Renault 150 is a 1,438 cc, inline — four petrol engine produced between 1965 and 1972. It features a single overhead camshaft, two valves per cylinder, and a carburetted fuel system, delivering 75 PS of power and 110 Nm of torque. The engine's simple design provided reliable performance for everyday driving in compact family vehicles.
Fitted to the Renault 12, Renault 16, and early Renault 15 models, the 150 was engineered for economy, smoothness, and low — maintenance o…
Production years 1965–1970 meet Euro 1 precursor standards; 1970–1972 models may have minor regional emissions variations depending on market .
The Renault 150 is a 1,438 cc inline-four petrol engine engineered for compact family cars (1965-1972). It combines a single overhead camshaft with a twin-barrel carburettor to deliver balanced performance and fuel economy. Designed to meet pre-Euro emissions standards, it prioritised reliability over high output.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,438 cc | |
Fuel type | Petrol | |
Configuration | Inline-4, SOHC, 8-valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 76.0 mm × 79.0 mm | |
Power output | 75 PS (55 kW) | |
Torque | 110 Nm @ 3,000 rpm | |
Fuel system | Solex 32 BIA twin-barrel carburettor | |
Emissions standard | Pre-Euro (equivalent to late 1960s national standards) | |
Compression ratio | 8.8:1 | |
Cooling system | Water-cooled | |
Timing system | Chain-driven camshaft | |
Oil type | SAE 20W-50 mineral oil | |
Dry weight | 128 kg |
The Renault 150 was used across Renault's R12/R16 platforms with transverse mounting and no licensed external usage. This engine received platform-specific adaptations-revised intake manifolds in the R16 and modified exhaust hangers in the R12-and from 1968 the facelifted R12 adopted the 150A variant with higher-lift camshaft profile, creating interchange limits. All adaptations are documented in OEM technical bulletins.
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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 Renault 150 is mechanically robust when maintained correctly, but suffers from inherent wear issues in high-mileage examples. Crankshaft bearings and valve seats are vulnerable without strict adherence to 10,000 km oil changes using SAE 20W-50 mineral oil. Well-serviced engines can exceed 150,000 km, but neglected examples commonly fail before 100,000 km due to bearing seizure or valve recession.
The biggest issues are crankshaft main bearing wear, valve seat recession, carburettor float needle sticking, and timing chain elongation. These are well-documented in Renault service bulletins S.150.02 and TIS E12-087. Oil leaks from the front timing cover gasket are also frequent due to age-hardened rubber.
The Renault 150 was used in the Renault 12 (1965-1972), Renault 16 (1965-1970), and early Renault 15 (1967-1968). It powered variants including 12 L, TL, GTL, 16 L, TL, TS, and 15 L, TL. No external manufacturers licensed this engine. Production ceased in 1972 in favour of the Cléon-Fonte family.
Aftermarket ECU tuning is common on the 150 platform, but increasing boost or altering engine parameters accelerates component wear, impacts emissions compliance, and may void vehicle warranties. Any modifications should be evaluated carefully by a qualified specialist.
Typical consumption is approximately 8.5 L/100km (33 mpg UK) in mixed driving. Highway cruising yields around 7.0 L/100km (40 mpg UK) in a lightweight R12. Economy depends heavily on carburettor adjustment and tyre pressure; poorly tuned engines consume up to 10 L/100km.
No. The Renault 150 is a non-interference engine. If the timing chain fails, valves will not contact pistons. While damage to the camshaft or rocker arms may occur, catastrophic internal collision is avoided, reducing repair cost compared to interference designs.
Renault specifies SAE 20W-50 mineral oil meeting API SL/CD specifications. Synthetic oils are not recommended due to compatibility issues with period-specific seals and gaskets. Change interval must be strictly observed at 10,000 km or every six months to prevent bearing wear and valve seat recession.
Comprehensive technical documentation and regulatory references
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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.
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