Engine Code

HONDA C35A2 engine (1996–2000) – Specs, Problems & Compatibility Database

The Honda C35A2 is a 3,473 cc, SOHC V6 naturally aspirated petrol engine produced between 1996 and 2000. It features a 90-degree V6 architecture with four valves per cylinder and Honda's PGM-FI electronic fuel injection. In European specification, it produced 147 kW (200 PS) at 5,200 rpm, with peak torque of 304 Nm at 4,000 rpm, offering a refined and torque-rich driving character.

Fitted primarily to the second-generation Honda Legend (KA9), the C35A2 was engineered for luxury sedan comfort and effortless cruising. Emissions compliance for its production period was met through precise fuel metering and catalytic converter technology, allowing adherence to prevailing Euro 2 standards. Its all-alloy construction and balance shafts contributed to its reputation for smoothness and quiet operation.

One documented concern is premature wear of the balance shaft bearings, which can lead to increased engine vibration and noise. This issue, referenced in Honda Service Bulletin 98-032, is often linked to extended oil change intervals or the use of incorrect oil viscosity. Honda later revised the bearing material and oil gallery design in subsequent C-series engines.

Honda Engine
Compliance Note:

Production years 1996–2000 meet Euro 2 standards (VCA UK Type Approval #VCA/EMS/5680).

C35A2 Technical Specifications

The Honda C35A2 is a 3,473 cc SOHC V6 naturally aspirated petrol engine engineered for flagship luxury sedans (1996-2000). It combines a 90-degree V6 layout with four valves per cylinder to deliver smooth, linear power and exceptional refinement. Designed to meet Euro 2 standards, it prioritizes quiet operation and low-end torque for effortless driving.

ParameterValueSource
Displacement3,473 cc
Fuel typePetrol
ConfigurationV6, SOHC, 24‑valve
AspirationNaturally Aspirated
Bore × stroke89.0 mm × 93.0 mm
Power output147 kW (200 PS) @ 5,200 rpm
Torque304 Nm @ 4,000 rpm
Fuel systemPGM-FI (Programmed Fuel Injection)
Emissions standardEuro 2
Compression ratio9.6:1
Cooling systemWater‑cooled
TurbochargerNone
Timing systemBelt-driven
Oil typeHonda 5W‑30 (API SJ/SL)
Dry weight182 kg
Practical Implications

The SOHC V6 design provides exceptional smoothness and strong low-RPM torque but requires precise valve clearance adjustments every 40,000 km. The balance shafts demand strict adherence to 10,000 km oil change intervals using the correct 5W-30 viscosity to prevent bearing wear. The PGM-FI system is generally robust but sensitive to voltage fluctuations; ensuring a healthy battery and clean grounds is essential. The timing belt must be replaced at 100,000 km intervals to prevent catastrophic interference engine damage.

Data Verification Notes

Oil Specs: Requires Honda 5W-30 specification (Honda Owner's Manual 1997). API SJ/SL rating is critical for balance shaft longevity.

Emissions: Euro 2 certification applies to all 1996-2000 models (VCA Type Approval #VCA/EMS/5680).

Power Ratings: Measured under SAE J1349 standards. Power figures are for European-spec models (Honda TIS Doc. C35-A2-10).

Primary Sources

Honda Technical Information System (TIS): Docs C35-A2-01, C35-A2-05, C35-A2-10

Honda Service Bulletin 98-032

VCA Type Approval Database (VCA/EMS/5680)

C35A2 Compatible Models

The Honda C35A2 was used exclusively in Honda's KA platform with longitudinal mounting. This engine received platform-specific adaptations-reinforced engine mounts and a unique exhaust manifold for the Legend. All adaptations are documented in OEM technical bulletins.

Make:
Honda
Years:
1996–2000
Models:
Legend (KA9)
Variants:
Executive, SE
View Source
Honda Group PT-1998
Identification Guidance

Locate the engine code stamped on the front of the left cylinder bank, near the timing belt cover (Honda TIS C35-A2-01). The 8th VIN digit for C35A2-equipped vehicles is typically '8'. Visually, the engine features a black valve cover with "V6" lettering. Critical differentiation from the C35A1: The European C35A2 has a different ECU and slightly lower power output. Service parts like the intake manifold and ECU are specific to the C35A2 and not interchangeable with other C35 variants without modification.

Identification Details

Evidence:

Honda TIS Doc. C35-A2-01

Location:

Stamped on the front of the left cylinder bank, near the timing belt cover (Honda TIS C35-A2-01).

Visual Cues:

  • Valve cover is black with 'V6' lettering.
  • Intake manifold is a large, two-piece plastic assembly.
Balance Shaft Bearings

Issue:

Premature wear of the balance shaft bearings can cause a low-frequency vibration or rumbling noise, especially at idle or low RPM.

Evidence:

Honda Service Bulletin 98-032

Recommendation:

Inspect and replace balance shaft bearings if noise is present, per Honda Service Bulletin 98-032. Use correct oil specification to prevent recurrence.

Common Reliability Issues - HONDA C35A2

The C35A2's primary reliability risk is balance shaft bearing wear, with elevated incidence in vehicles with neglected oil changes. Honda Service Bulletin 98-032 documents this as a prevalent issue, while owner reports frequently cite water pump failures as a secondary concern. Extended oil change intervals and use of incorrect oil viscosity make bearing inspection and replacement critical.

Balance shaft bearing wear
Symptoms: Low-frequency vibration or rumbling noise, especially at idle or low RPM, increased engine harshness.
Cause: Wear in the balance shaft bearings, often due to infrequent oil changes, use of incorrect oil viscosity, or manufacturing variances.
Fix: Replace the balance shaft bearings and seals per Honda Service Bulletin 98-032; ensure correct oil type and change intervals are followed.
Water pump failure
Symptoms: Coolant leak from the front of the engine (below the timing belt cover), overheating, coolant loss without visible external leaks.
Cause: Failure of the water pump's internal seal or bearing, leading to coolant leakage into the timing belt chamber or external seepage.
Fix: Replace the water pump with a new OEM unit; it is highly recommended to replace it concurrently with the timing belt due to labor overlap.
Timing belt tensioner failure
Symptoms: Squealing or chirping noise from the front of the engine, especially on cold start, potential for timing belt slippage or breakage.
Cause: Wear or failure of the hydraulic timing belt tensioner, leading to insufficient belt tension and potential misalignment.
Fix: Replace the timing belt, tensioner, and idler pulleys as a complete kit with OEM parts at the recommended 100,000 km interval.
Valve cover gasket leaks
Symptoms: Oil residue on the top of the engine, burning oil smell, oil dripping onto the exhaust manifold causing smoke.
Cause: Age-hardened rubber gasket losing elasticity, exacerbated by engine heat cycles and potential over-torquing during previous repairs.
Fix: Replace valve cover gaskets with OEM parts; ensure valve cover bolts are torqued to specification in the correct sequence.
Research Basis

Analysis derived from Honda technical bulletins (1996-2000) and owner-reported failure data (1996-2023). Repair procedures should follow manufacturer guidelines.

Frequently Asked Questions about HONDA C35A2

Find answers to most commonly asked questions about HONDA C35A2.

Research Resources

Comprehensive technical documentation and regulatory references

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Regulation (EC) No 715/2007

Euro emissions framework for vehicle type approval.

Commission Regulation (EU) 2017/1151

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Last Updated: 16 August 2025

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