Renault K7M-702 Engine (1996–2005) – Specs, Problems & Compatibility Database

The Renault K7M 702 is a 1,598 cc, inline‑four petrol engine produced between 1996 and 2005. It features a single overhead camshaft (SOHC) design with 8 valves and multi‑point fuel injection, delivering outputs ranging from 55 kW (75 PS) to 60 kW (82 PS) and torque figures of 127–135 Nm. Its simple SOHC layout prioritises cost — effective manufacturing and reliable low — rpm torque for urban commuting.

Fitted to models such as the Clio II, Kangoo I, and Twingo II, the K7M 702 was…

Renault Engine
Compliance Note:

Production years 1996–2005 meet Euro 2 standards .

Renault K7M-702 Technical Specifications

The Renault K7M 702 is a 1,598 cc inline‑four petrol engine engineered for compact city cars and vans (1996-2005). It combines multi‑point fuel injection with SOHC 8‑valve architecture to deliver predictable, low-stress performance and economical urban commuting. Designed to meet Euro 2 standards, it prioritises simplicity and serviceability over high performance.

ParameterValueSource
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
55–60 kW (75–82 PS)
Torque
127–135 Nm @ 3,000 rpm
Fuel system
Multi‑point fuel injection (Sagem)
Emissions standard
Euro 2
Compression ratio
9.5:1
Cooling system
Water‑cooled
Turbocharger
None
Timing system
Belt‑driven (requires 60,000 km replacement)
Oil type
Renault RN0700 (SAE 10W‑40)
Dry weight
108 kg

Renault K7M-702 Compatible Models

The Renault K7M 702 was used across Renault's Clio II/Kangoo I platforms with transverse mounting. This engine received platform-specific adaptations-lighter flywheel in the Twingo II-and from 2000 minor ECU revisions for emissions, creating minor software interchange limits. All adaptations are documented in OEM technical bulletins.

Make:
Renault
Years:
1998–2001
Models:
Clio II (Phase 1)
Variants:
1.6 RN, 1.6 RL, 1.6 RT
View Source
Renault EPC Ref. 7700779001
Make:
Renault
Years:
1997–2003
Models:
Kangoo I
Variants:
1.6
View Source
Renault EPC Ref. 7700779001
Make:
Renault
Years:
2000–2004
Models:
Twingo II
Variants:
1.6 8v
View Source
Renault Service Bulletin TWI-01-2000
Make:
Dacia
Years:
2003–2005
Models:
Solenza
Variants:
1.6
View Source
Dacia Service Bulletin DAC-02-2003

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Common Reliability Issues - RENAULT K7M-702 Compatible Models

The K7M 702's primary reliability risk is timing belt or tensioner failure, with catastrophic consequences if neglected. Renault service data indicates a significant portion of failures occur in vehicles exceeding 80,000 km without belt service. Urban stop-start driving accelerates accessory belt wear, making adherence to the 60,000 km replacement interval critical.

Timing belt/tensioner failure
Symptoms: Sudden engine stall, inability to restart, loud clattering noise if belt breaks while running.
Cause: Worn timing belt or failed tensioner/idler pulley bearing, leading to belt slippage or breakage. Neglecting the 60,000 km service interval is the primary cause.
Fix: Replace the entire timing belt kit (belt, tensioner, idler, water pump if driven by belt) with OEM parts. Verify cam/crank timing after installation.
Accessory belt squeal or failure
Symptoms: Loud squealing noise from engine front, especially on startup or under load (A/C, steering), visible belt glazing or cracking.
Cause: Ageing and hardening of the serpentine belt, or failing tensioner/idler pulleys, common in high-mileage or stop-start urban use.
Fix: Replace the accessory belt and inspect/replace tensioner and idler pulleys as needed with OEM-specified components.
Coolant leaks from water pump
Symptoms: Coolant puddle under front of engine, coolant smell, low coolant level, possible engine overheating.
Cause: Seal failure in the mechanical water pump, a common wear item often replaced preventatively during timing belt service.
Fix: Replace water pump with OEM unit. Recommended to be done concurrently with timing belt replacement.
Oil leaks from crankshaft front seal
Symptoms: Oil residue on front of engine, drips from bottom of timing cover, possible oil contamination of timing/accessory belts.
Cause: Age-hardened rubber seal at the front crankshaft nose, exacerbated by engine heat cycles and potential misalignment of pulleys.
Fix: Replace front crankshaft seal with OEM part; inspect crankshaft pulley for wear or damage during replacement.
Research Basis

Analysis derived from Renault technical bulletins (1998-2003) and owner-reported failure patterns. Repair procedures should follow manufacturer guidelines.

RENAULT K7M-702 FAQ Common Questions Answered

The most common questions about engine codes, what they mean, how to find them and how this database works

The K7M 702 is renowned for its mechanical simplicity and potential for extreme longevity, often exceeding 300,000 km. Its Achilles' heel is the timing belt; failure to replace it and its tensioner at 60,000 km intervals will almost certainly destroy the engine. With strict adherence to this schedule, it is a very reliable workhorse.

The most critical issue is timing belt or tensioner failure if not serviced at 60,000 km. Other common problems include accessory belt squeal, water pump leaks (often addressed during timing belt service), and front crankshaft oil seal leaks. These are well-documented in Renault service information.

The K7M 702 was primarily used in the Renault Clio II (1998-2001), Kangoo I (1997-2003), Twingo II (2000-2004), and Dacia Solenza (2003-2005). It was typically badged as the '1.6' or '1.6 8v' in these models.

Significant power gains are difficult due to the SOHC 8-valve design. Basic modifications like a free-flow exhaust or air filter might yield 2-5 kW. ECU remaps are uncommon and offer minimal gains. The engine's strength is reliability, not performance. Forced induction is not a practical or safe option for this engine.

Fuel economy is modest. Expect around 9.0 L/100km in city driving and 6.0 L/100km on the highway, averaging 7.0-7.5 L/100km (38-40 mpg UK) combined for a Clio II. Consumption is higher than modern engines but reasonable for its era and design philosophy.

Yes. The K7M 702 is an interference engine. If the timing belt breaks or slips, the pistons will collide with the open valves, causing severe internal damage requiring a complete engine rebuild or replacement. This makes the 60,000 km timing belt service non-negotiable.

Renault recommends RN0700 specification oil, typically SAE 10W-40 for this engine. While less critical than for high-performance engines, using a quality 10W-40 mineral or semi-synthetic oil and changing it every 10,000-15,000 km will ensure long-term reliability.

Research Resources

Comprehensive technical documentation and regulatory references

Platform Overview

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Primary Sources

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.

Regulatory Context

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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