The Renault K7M 745 is a 1,598 cc, inline‑four petrol engine produced between 1996 and 2008. It features a single overhead camshaft (SOHC) design with 8 valves and multi‑point fuel injection. In standard form, it delivers 55 kW (75 PS) and 114 Nm of torque, prioritizing simplicity and cost‑effective ownership over high performance.
Fitted to entry‑level models such as the Clio II, Kangoo I, and Twingo II, the K7M 745 was engineered for basic, reliable urban transportation…
Production years 1996–2000 meet Euro 2 standards; 2001–2005 models meet Euro 3; 2006–2008 models may have Euro 4 compliance depending on market (VCA UK Type Approval #VCA/EMS/2345).
The Renault K7M 745 is a 1,598 cc inline‑four petrol engine engineered for compact and light commercial vehicles (1996-2008). It combines multi‑point fuel injection with a SOHC 8‑valve layout to deliver predictable, low-stress performance ideal for city driving. Designed to meet Euro 2 through Euro 4 standards, it emphasizes mechanical simplicity and low running costs.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,598 cc | |
Fuel type | Petrol | |
Configuration | Inline‑4, SOHC, 8‑valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 79.5 mm × 80.5 mm | |
Power output | 55 kW (75 PS) @ 5,000 rpm | |
Torque | 114 Nm @ 2,800 rpm | |
Fuel system | Multi‑point fuel injection (SAGEM SL96) | |
Emissions standard | Euro 2 (1996–2000); Euro 3 (2001–2005); Euro 4 (2006–2008, market-dependent) | |
Compression ratio | 9.5:1 | |
Cooling system | Water‑cooled | |
Turbocharger | None | |
Timing system | Belt‑driven (front‑mounted) | |
Oil type | Renault RN0700 (SAE 10W‑40) | |
Dry weight | 108 kg |
The Renault K7M 745 was used across Renault's A/B-segment platforms with transverse mounting. This engine received minimal platform-specific adaptations-simple engine mounts across all applications-with no major facelift revisions affecting core compatibility during its production run. All adaptations are documented in OEM technical bulletins.
The K7M 745's primary reliability risk is timing belt failure if neglected, with catastrophic consequences in its interference design. Renault internal service data indicated a high correlation between missed belt changes and engine write-offs. Exhaust manifold cracking is also prevalent in early builds, particularly under high thermal load. Adherence to the 60,000 km belt interval and preemptive manifold replacement on early units are critical mitigation factors.
Analysis derived from Renault technical bulletins (1996-2008) and owner-reported failure data (2008-2023). 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 K7M 745 is renowned for its mechanical simplicity and durability, making it very reliable long-term if basic maintenance is followed. The absolute critical factor is replacing the timing belt at 60,000 km to avoid engine destruction. With this and regular oil changes, these engines can easily surpass 250,000 km.
The most frequent issues are timing belt failure (if neglected), cracking of the exhaust manifold (especially on pre-2003 models), failure of the coolant temperature sensor causing running issues, and oil leaks from the valve cover gasket. These are well-documented in Renault service information.
This 1.6L petrol engine was primarily used in the Renault Clio II (1998-2005), Kangoo I (1997-2008), and the early Twingo II (2007-2008). It was also fitted to the Dacia Solenza (2003-2005) as the 1.6 8V variant. All applications are transverse, front-wheel drive.
Significant power gains are difficult due to its SOHC 8-valve design. Simple modifications like a performance exhaust or air filter might yield 2-3 kW. ECU remapping is uncommon and offers minimal gains. It's not a popular engine for performance tuning, valued instead for its reliability and economy.
Fuel economy is modest. In a Clio II, expect ~8.5 L/100km (city) and ~5.5 L/100km (highway), or around 33 mpg UK combined. The heavier Kangoo will return higher consumption, typically 30-35 mpg UK on mixed driving. Figures are heavily influenced by vehicle weight and driving style.
Yes. The K7M 745 is an interference engine. If the timing belt snaps or jumps, the pistons will collide with the open valves, causing catastrophic internal damage requiring a full engine rebuild or replacement. This makes the 60,000 km belt change interval non-negotiable.
Renault typically specifies oil meeting the RN0700 standard, often a 10W-40 mineral or semi-synthetic grade for pre-2005 models. For later models, RN0710 (5W-30) may be specified. Always consult your owner's manual or service booklet for the exact specification for your model year.
Comprehensive technical documentation and regulatory references
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RENAULT Official Site
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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
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