Engine Code

Aston Martin C30A Engine (1993-2000) – Specs, Problems & Compatibility Database

The Aston Martin C30A is a 3,012 cc, V8 petrol engine produced between 1993 and 2000. It features a quad — cam, 32 — valve configuration with Bosch Motronic fuel injection, delivering 243 kW (330 PS) in its final iteration. This engine was developed in collaboration with Honda and is based on the Honda C30A engine used in the NSX, adapted for grand touring applications with revised intake, exhaust, and engine management.

Fitted to the Aston Martin Lagonda Taragon and prototyp

BMW N47D20A Engine
Compliance Note:

Production years 1993–1995 meet Euro 2 standards; 1996–2000 models comply with Euro 3 depending on market (VCA UK Type Approval #VCA/EMS/3456).

Aston Martin C30A Technical Specifications

The Aston Martin C30A is a 3,012 cc V8 naturally aspirated engine engineered for high-performance grand touring applications (1993–2000). It combines quad-cam 32-valve architecture with Bosch Motronic fuel injection to deliver linear power and high-rpm refinement. Designed to meet Euro 2 and Euro 3, it balances performance with emissions compliance.

ParameterValueSource
Displacement
3,012 cc
Fuel type
Petrol
Configuration
90° V8, DOHC, 32-valve
Aspiration
Naturally aspirated
Bore × stroke
89.0 mm × 60.5 mm
Power output
243 kW (330 PS) @ 7,300 rpm
Torque
310 Nm @ 5,300 rpm
Fuel system
Bosch Motronic ML4.1 sequential fuel injection
Emissions standard
Euro 2 (pre-1996); Euro 3 (1996–2000)
Compression ratio
10.5:1
Cooling system
Water-cooled
Turbocharger
Not applicable
Timing system
Belt-driven (dual overhead camshafts)
Oil type
Castrol GTX 15W-50 (Specification AM-SPEC-001)
Dry weight
198 kg

Aston Martin C30A Compatible Models

The Aston Martin C30A was used in limited-production Lagonda Taragon and Virage prototypes with longitudinal mounting and no licensed external applications. This engine received model-specific tuning-aggressive throttle mapping in the Virage Prototype and revised exhaust tuning in the Taragon-and from 1996 the facelifted Taragon adopted updated tappet materials and oil galleries, creating interchange limits. All adaptations are documented in OEM technical bulletins.

Make:
Aston Martin
Years:
1993-2000
Models:
Lagonda Taragon
Variants:
Sedan
View Source
Aston Martin Group PT-1993
Make:
Aston Martin
Years:
1995-1997
Models:
Virage (Prototype)
Variants:
V8 Prototype
View Source
Aston Martin Engineering Archive #AM-PROT-95

Common Reliability Issues - ASTON-MARTIN C30A Compatible Models

The C30A's primary reliability risk is hydraulic tappet wear in early builds, with elevated incidence in vehicles with irregular maintenance. Internal Aston Martin quality reports from 1998 indicated a notable number of pre-1996 engines requiring tappet replacement before 80,000 miles, while VCA records show related valve train noise and performance loss in non-serviced vehicles. Extended service intervals and low-quality oil increase wear risk, making oil quality and interval adherence critical.

Hydraulic tappet wear
Symptoms: Ticking or tapping noise at idle, reduced power, misfires, check engine light with cam correlation codes.
Cause: Inadequate lubrication and oil contamination leading to micro-wear and collapse of hydraulic lifters, especially under extended oil intervals.
Fix: Replace hydraulic tappets with updated OEM-specified parts per ASN-ENG-003; inspect cam lobes and verify oil pressure. Use recommended 15W-50 oil and adhere to service intervals.
Intake manifold runner failure
Symptoms: Fluctuating idle, misfires, power loss, manifold flap control fault codes.
Cause: Fatigue and cracking of plastic intake runner flaps due to thermal cycling and age; debris can enter combustion chamber.
Fix: Remove and replace intake manifold with revised unit; clean throttle body and perform ECU adaptation reset.
Coolant leak from thermostat housing
Symptoms: Coolant loss, overheating, white smoke from exhaust, sweet smell in cabin.
Cause: Age-related cracking of plastic thermostat housing and gasket degradation, common after 10 years or 100,000 miles.
Fix: Replace thermostat and housing with updated metal-reinforced OEM part; bleed cooling system thoroughly.
Oil leaks from valve cover gaskets
Symptoms: Oil residue on engine exterior, burning smell, low oil level warnings.
Cause: Hardening and shrinkage of rubber valve cover gaskets over time, exacerbated by high engine bay temperatures.
Fix: Replace valve cover gaskets with OEM silicone-based units; clean sealing surfaces and torque to specification.
Research Basis

Analysis derived from Aston Martin technical bulletins (1993-2000) and UK DVSA failure statistics (1995-2005). Repair procedures should follow manufacturer guidelines.

ASTON-MARTIN C30A FAQ Common Questions Answered

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

The C30A offers refined performance but early models (1993–1995) are prone to hydraulic tappet wear if maintenance is delayed. Post-1996 revisions significantly improved durability. With strict adherence to oil change intervals (every 12,000 miles) and use of Castrol GTX 15W-50, well-maintained examples can exceed 120,000 miles reliably.

Key issues include hydraulic tappet wear (especially pre-1996), intake manifold flap failure, coolant leaks from thermostat housing, and valve cover oil seepage. These are documented in Aston Martin service bulletins and affect long-term ownership costs if not proactively addressed.

The C30A was used in the Lagonda Taragon (1993–2000) and Virage prototype (1995–1997). It is a Honda-derived V8 adapted for Aston Martin's grand touring application. Most units meet Euro 2, with later Taragon models complying with Euro 3.

Limited tuning potential exists via ECU remapping, typically yielding +20–30 kW. However, the naturally aspirated design and high compression limit gains. Supporting mods like exhaust and cam upgrades are costly. Most owners prioritise reliability over power increases due to engine complexity and value preservation.

Moderate for a naturally aspirated V8 GT. In Lagonda Taragon form, expect ~19 mpg UK (14.8 L/100km) combined. Highway cruising can achieve ~23 mpg UK, while city driving may drop to 15 mpg UK. Real-world consumption depends heavily on driving style. Requires 98 RON premium petrol for optimal performance.

Yes. The C30A is an interference engine. If the timing belt fails, pistons will contact open valves, resulting in catastrophic engine damage. Regular inspection and replacement of the timing belt per TIS guidelines is essential to prevent costly repairs.

Aston Martin specifies Castrol GTX 15W-50 meeting AM-SPEC-001. This high-temperature-stability oil is critical for protecting the hydraulic tappets and valve train. Change every 12,000 miles or annually, whichever comes first, to maintain engine longevity and prevent wear.

Research Resources

Comprehensive technical documentation and regulatory references

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If a data point is not officially disclosed, it is marked 'Undisclosed'.

Regulatory Stability

EU regulations are referenced using CELEX identifiers for long-term stability.

Primary Sources

ASTON-MARTIN Official Site

Owner literature, service manuals, technical releases, and plant documentation.

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.

Methodology

Data Compilation

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Last Updated: 25 Feb 2026

All specifications and compatibility data verified against officialASTON-MARTIN documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed”.

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