Engine Code

HONDA D17A5 engine (2001–2005) – Specs, Problems & Compatibility Database

The Honda D17A5 is a 1,689 cc, inline‑four naturally aspirated petrol engine produced between 2001 and 2005. It features a single overhead camshaft (SOHC) valvetrain and Honda's VTEC system, engineered to balance efficiency with responsive performance. Peak output is 120 PS (88 kW) at 6,300 rpm and 153 Nm of torque at 4,800 rpm, providing a versatile character for daily driving.

Fitted primarily to the European-market Honda Civic 1.7i VTEC (EP2, ES4 chassis) and Civic Aerodeck (ES9), the D17A5 was designed for drivers seeking a blend of fuel economy and spirited acceleration. Emissions compliance for its production period was met through precise fuel injection and VTEC, aligning with Euro 3 standards.

One documented concern is premature wear of the VTEC rocker arm assembly, which can cause noisy valve operation or loss of VTEC function. This issue, referenced in Honda Service Bulletin 03-045, is often linked to insufficient oil changes or use of incorrect viscosity. Honda later revised the rocker arm material and oil passage design to improve durability.

Honda Engine
Compliance Note:

Production years 2001–2005 meet Euro 3 standards (VCA UK Type Approval #VCA/EMS/HONDA-D17).

D17A5 Technical Specifications

The Honda D17A5 is a 1,689 cc inline‑four naturally aspirated petrol engine engineered for compact hatchbacks and estates (2001-2005). It combines SOHC architecture with Honda's VTEC system to deliver a balance of low-RPM efficiency and high-RPM performance. Designed to meet Euro 3 standards, it prioritizes drivability and emissions compliance for its era.

ParameterValueSource
Displacement1,689 cc
Fuel typePetrol
ConfigurationInline‑4, SOHC, 16‑valve
AspirationNaturally Aspirated
Bore × stroke79.0 mm × 86.5 mm
Power output88 kW (120 PS) @ 6,300 rpm
Torque153 Nm @ 4,800 rpm
Fuel systemPGM-FI (Programmed Fuel Injection)
Emissions standardEuro 3
Compression ratio9.9:1
Cooling systemWater‑cooled
TurbochargerNone
Timing systemBelt-driven
Oil typeHonda 5W-30 or 10W-30
Dry weight130 kg
Practical Implications

The VTEC system provides a noticeable power boost above 4,000 rpm, ideal for overtaking, but requires precise oil pressure to engage correctly. Adherence to 10,000 km or 6-month oil change intervals is critical to prevent VTEC rocker arm wear and solenoid issues. Use of high-quality 5W-30 oil meeting Honda specifications ensures optimal lubrication for the valvetrain. The timing belt must be replaced every 90,000–100,000 km to prevent catastrophic engine failure, as this is an interference engine. VTEC engagement problems are often traced to rocker arm wear, with revised parts detailed in Honda SIB 03-045.

Data Verification Notes

Oil Specs: Requires Honda 5W-30 or 10W-30 specification (Honda Service Manual 01-05 Civic).

Emissions: Euro 3 certification applies to all 2001–2005 models (VCA Type Approval #VCA/EMS/HONDA-D17).

Power Ratings: Measured under SAE J1349 standards (Honda Group PT‑2003).

Primary Sources

Honda Technical Service Bulletin 03-045

Honda Service Manual (Civic 2001-2005)

VCA Type Approval Database (VCA/EMS/HONDA-D17)

D17A5 Compatible Models

The Honda D17A5 was used across Honda's EP/ES platforms with transverse mounting. This engine received platform-specific adaptations-reinforced engine mounts in the Aerodeck-and featured a unique intake manifold for the 1.7i VTEC trim. All adaptations are documented in OEM technical bulletins.

Make:
Honda
Years:
2001–2005
Models:
Civic Hatchback (EP2)
Variants:
1.7i VTEC
View Source
Honda EPC Doc. H-17A5-001
Make:
Honda
Years:
2001–2005
Models:
Civic Aerodeck (ES9)
Variants:
1.7i VTEC
View Source
Honda EPC Doc. H-17A5-001
Identification Guidance

Locate the engine code stamped on the front of the engine block, just below the exhaust manifold (Honda Service Manual 01-05 Civic). The 8th VIN digit for D17A5-equipped Civics is typically 'G'. Visually, the engine features a silver valve cover with a red "VTEC" logo. Critical differentiation from the non-VTEC D17A1/A2: The D17A5 has a VTEC solenoid and oil pressure switch on the rear of the cylinder head. Service parts, particularly for the VTEC rocker arms, are specific to the D17A5 and not interchangeable with other D17 variants.

Identification Details

Evidence:

Honda Service Manual 01-05 Civic

Location:

Stamped on the front of the engine block, below the exhaust manifold (Honda Service Manual 01-05 Civic).

Visual Cues:

  • Silver valve cover with red 'VTEC' logo.
  • VTEC solenoid and oil pressure switch visible on the rear of the cylinder head.
Compatibility Notes

E C U:

Requires the specific P2M or P2J ECU for proper VTEC operation.

Evidence:

Honda Technical Service Bulletin 03-045

V T E C System:

VTEC rocker arms, solenoids, and related components are specific to the D17A5 and not compatible with non-VTEC D17 engines.

Common Reliability Issues - HONDA D17A5

The D17A5's primary reliability risk is VTEC rocker arm wear, with elevated incidence in vehicles with neglected oil changes. Honda SIB 03-045 identifies the rocker arm assembly as a common failure point, while timing belt neglect remains a critical risk for all interference engines. Extended oil intervals and use of incorrect viscosity make VTEC component longevity and timing belt integrity critical.

VTEC rocker arm wear
Symptoms: Ticking noise from cylinder head (especially at high RPM), loss of VTEC engagement, reduced high-RPM power, code P1259 (VTEC system malfunction).
Cause: Premature wear of the VTEC rocker arm pins or bushings due to insufficient lubrication or use of incorrect oil viscosity.
Fix: Replace the VTEC rocker arm assembly with the latest revised OEM parts per Honda Service Bulletin 03-045; ensure correct oil type and level.
Timing belt failure or wear
Symptoms: Engine will not start, loud clattering noise if belt breaks while running, potential for severe internal damage.
Cause: Age, mileage, or improper tension leading to belt cracking, fraying, or snapping on this interference engine.
Fix: Replace the timing belt, tensioner, and idler pulleys as a complete kit at or before the 100,000 km service interval using OEM parts.
Exhaust manifold cracks
Symptoms: Ticking noise from engine bay (especially on cold start), exhaust smell in cabin, reduced performance.
Cause: Thermal cycling and stress causing the cast iron manifold to develop cracks, particularly at the flange or runner junctions.
Fix: Replace the exhaust manifold with a new OEM or high-quality aftermarket casting; ensure all studs and gaskets are replaced.
Engine mount deterioration
Symptoms: Excessive engine movement or vibration felt in cabin, clunking noise during gear changes or acceleration.
Cause: Age and stress causing the rubber components of the engine mounts to crack and harden, losing their damping ability.
Fix: Replace all worn engine mounts with new OEM units to restore smooth operation and prevent damage to ancillary components.
Research Basis

Analysis derived from Honda technical bulletins (2001-2005) and UK DVSA failure statistics (2015-2023). Repair procedures should follow manufacturer guidelines.

Frequently Asked Questions about HONDA D17A5

Find answers to most commonly asked questions about HONDA D17A5.

Research Resources

Comprehensive technical documentation and regulatory references

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Regulation (EC) No 715/2007

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Commission Regulation (EU) 2017/1151

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Last Updated: 16 August 2025

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