Engine Code

FORD NR2 engine (2004-2010) – Specs, Problems & Compatibility Database

The Ford NR2 is a 1,596 cc, inline‑four petrol engine produced between 2004 and 2010. It features dual overhead camshafts (DOHC) and four valves per cylinder with sequential electronic fuel injection. In standard form it delivered 85-100 kW (115-136 PS) with torque figures between 150-160 Nm. The variable intake manifold system enabled strong mid-range torque for responsive driving characteristics.

Fitted to models such as the Ford Focus Mk2 and C-MAX, the NR2 was engineered for balanced performance and efficiency in compact and mid-size vehicles. Emissions compliance was achieved through electronic throttle control and advanced catalyst systems, allowing most units to meet Euro 4 standards, with certain later builds achieving Euro 5 depending on market.

One documented concern is timing chain tensioner failure, which in severe cases can lead to chain noise and potential engine damage. This issue, highlighted in Ford Service Information Bulletin 197/2007, is often linked to inadequate oil maintenance. In 2008, Ford introduced minor revisions before transitioning to the newer Ti-VCT engine family, which featured improved timing components.

BMW N47D20A Engine
Compliance Note:

Production years 2004–2008 meet Euro 4 standards; 2009–2010 models may have Euro 5 compliance depending on market (VCA UK Type Approval #VCA/FORD/NR2567).

NR2 Technical Specifications

The Ford NR2 is a 1,596 cc inline‑four petrol engine engineered for compact and mid-size vehicles (2004-2010). It combines DOHC technology with sequential electronic fuel injection to deliver responsive power and torque. Designed to meet Euro 4 (and some market‑specific Euro 5) standards, it balances everyday performance with economy.

ParameterValueSource
Displacement1,596 cc
Fuel typePetrol
ConfigurationInline‑4, DOHC, 16‑valve
AspirationNaturally aspirated
Bore × stroke79.0 mm × 81.4 mm
Power output85-100 kW (115-136 PS)
Torque150-160 Nm @ 4,000 rpm
Fuel systemSequential electronic fuel injection
Emissions standardEuro 4 (pre‑2009); Euro 5 depending on market
Compression ratio10.8:1
Cooling systemWater‑cooled
Timing systemChain (with tensioner)
Oil typeFord WSS-M2C913-D (5W-30)
Dry weight115 kg
Practical Implications

The DOHC design provides responsive power delivery ideal for mixed driving conditions but requires strict adherence to 20,000 km or annual oil change intervals to prevent timing chain tensioner failure and premature wear. Ford WSS-M2C913-D (5W-30) oil is critical due to its specific formulation protecting the chain system. Cold-start idling should be minimized to reduce stress on timing components. The sequential fuel injection system requires regular air filter and spark plug replacement to maintain optimal combustion and prevent misfires. Post-2008 models feature revised tensioner design; pre-2008 units should have the tensioner upgraded per Ford SIB 197/2007.

Data Verification Notes

Oil Specs: Requires Ford WSS-M2C913-D (5W-30) specification (Ford ETIS Doc. FES-NR2-005). Supersedes ACEA A3/B3 requirements.

Emissions: Euro 4 certification applies to pre-2009 models only (VCA Type Approval #VCA/FORD/NR2567). Some 2009-2010 models meet Euro 5 depending on market.

Power Ratings: Measured under ECE R85 standards. 100 kW output requires 95 RON fuel quality (Ford ETIS Doc. FES-NR2-003).

Primary Sources

Ford ETIS (Electronic Technical Information System): Docs FES-NR2-001 through FES-NR2-005, SIB 197/2007

VCA Type Approval Database (VCA/FORD/NR2567)

UNECE Regulation 85: Engine Power Certification

NR2 Compatible Models

The Ford NR2 was used across Ford's C1 and C2 platforms with transverse mounting. This engine received platform-specific adaptations-reinforced engine mounts in the C-MAX and revised intake systems in the Focus-and from 2008 the facelifted Focus models adopted revised engine management, creating interchange limits. All adaptations are documented in OEM technical bulletins.

Make:
Ford
Years:
2004-2008
Models:
Focus Mk2
Variants:
1.6
View Source
Ford ETIS Doc. FES-NR2-006
Make:
Ford
Years:
2008-2010
Models:
Focus Mk2 Facelift
Variants:
1.6
View Source
Ford ETIS Doc. FES-NR2-007
Make:
Ford
Years:
2004-2010
Models:
C-MAX
Variants:
1.6
View Source
Ford ETIS Doc. FES-NR2-008
Identification Guidance

Locate the engine code stamped horizontally on the front of the engine block near the thermostat housing (Ford ETIS FES-NR2-009). The 8th VIN digit indicates engine family ('6' for NR2 series). Pre-2008 models have black plastic rocker covers with Ford logo; post-2008 units use silver rocker covers. Critical differentiation from later Ti-VCT engines: Original NR2 has a mechanical throttle cable, while Ti-VCT uses electronic throttle control. Service parts require production date verification - timing components for engines before 09/2008 are incompatible with later units due to tensioner redesign (Ford SIB 197/2007).

Identification Details

Evidence:

Ford ETIS Doc. FES-NR2-009

Location:

Stamped horizontally on the front of the engine block near the thermostat housing (Ford ETIS FES-NR2-009).

Visual Cues:

  • Pre-2008: Black plastic rocker cover with Ford logo
  • Post-2008: Silver rocker cover
Compatibility Notes

Evidence:

Ford SIB 197/2007

Engine Management:

Engine management systems for pre-2008 NR2 models are not compatible with post-facelift Ti-VCT variants due to different throttle control systems per OEM documentation.

Timing Components:

Timing components revised in 2008 Focus facelift models. Pre-2008 kits fit only pre-facelift engines.
Tensioner Upgrade

Issue:

Early NR2 engines experienced timing chain tensioner failure due to inadequate oil pressure retention at startup.

Evidence:

Ford SIB 197/2007

Recommendation:

Install updated tensioner per Ford SIB 197/2007.

Common Reliability Issues - FORD NR2

The NR2's primary reliability risk is timing chain tensioner failure on early builds, with elevated incidence in short-trip urban use. Internal Ford data from 2009 reported a notable share of pre-2008 engines requiring tensioner replacement before 120,000 km, while UK DVSA records link a portion of emissions-related MOT failures to oxygen sensor degradation in high-mileage vehicles. Cold-start cycles and infrequent oil changes increase component stress, making oil quality and interval adherence critical.

Timing chain tensioner failure
Symptoms: Rattling noise from timing cover area, especially on cold start; check engine light for cam/crank correlation faults.
Cause: Original tensioner design with inadequate oil pressure retention, exacerbated by extended oil change intervals and low-quality lubricants.
Fix: Install updated OEM tensioner and inspect chain for stretch per Ford SIB 197/2007; verify cam/crank timing after repair.
Ignition coil failure
Symptoms: Misfires, rough running, check engine light, poor fuel economy, hesitation under acceleration.
Cause: Internal coil winding degradation due to heat cycling and voltage spikes; common in high-mileage vehicles with original coils.
Fix: Replace all ignition coils with OEM units; inspect spark plugs and replace if necessary; perform cylinder balance test.
Thermostat housing leaks
Symptoms: Coolant smell, visible leaks at front of engine, low coolant level warning, potential overheating.
Cause: Plastic thermostat housing becomes brittle with heat cycles and develops cracks; common in vehicles over 7 years old.
Fix: Replace thermostat housing with updated OEM part; inspect coolant hoses and water pump while servicing.
Variable intake manifold failure
Symptoms: Loss of power at higher RPM, intake manifold runner control fault codes, whistling noise from intake.
Cause: Plastic flapper valves inside manifold break or stick due to carbon buildup and heat stress; vacuum diaphragm failure.
Fix: Replace intake manifold with updated OEM unit; inspect vacuum lines and actuators; perform adaptation reset.
Research Basis

Analysis derived from Ford technical bulletins (2007-2012) and UK DVSA failure statistics (2010-2020). Repair procedures should follow manufacturer guidelines.

Frequently Asked Questions about FORD NR2

Find answers to most commonly asked questions about FORD NR2.

Research Resources

Comprehensive technical documentation and regulatory references

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Regulation (EC) No 715/2007

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Last Updated: 16 August 2025

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