Engine Code

GENESIS TAU-5-0 engine (2016–2020) – Specs, Problems & Compatibility Database

The Genesis Tau 5.0 is a 5,038 cc, V8 naturally aspirated petrol engine produced between 2016 and 2020. It features dual overhead camshafts (DOHC), 32 valves, and continuously variable valve timing on both intake and exhaust. This engine delivers 313 kW (425 PS) and 520 Nm of torque, offering a linear, high-revving powerband characteristic of large-displacement naturally aspirated engines.

Fitted exclusively to the flagship Genesis G90 sedan, the Tau 5.0 was engineered for effortless, refined performance and a smooth, sonorous exhaust note. Emissions compliance for its production period was achieved through precise fuel metering and advanced catalytic converters, meeting stringent Euro 6 standards across all model years and markets.

One documented concern involves potential oil consumption at higher mileages, a characteristic noted in Genesis Technical Service Bulletin TSB-17-EN-005. This is attributed to normal wear of piston rings and valve stem seals under high-temperature operating conditions, rather than a design defect.

Gensis Engine
Compliance Note:

Production years 2016–2020 meet Euro 6 standards across all applicable markets (VCA UK Type Approval #VCA/EMS/5680).

TAU-5-0 Technical Specifications

The Genesis Tau 5.0 is a 5,038 cc V8 naturally aspirated petrol engineered for flagship luxury sedans (2016-2020). It combines a dual overhead camshaft design with continuously variable valve timing to deliver smooth, linear power and a refined driving experience. Designed to meet Euro 6 standards, it prioritizes acoustic refinement and effortless performance over ultimate efficiency.

ParameterValueSource
Displacement5,038 cc
Fuel typePetrol
ConfigurationV8, DOHC, 32-valve
AspirationNaturally aspirated
Bore × stroke92.0 mm × 95.0 mm
Power output313 kW (425 PS) @ 6,400 rpm
Torque520 Nm @ 5,000 rpm
Fuel systemSequential multi-port fuel injection (SFI)
Emissions standardEuro 6
Compression ratio11.5:1
Cooling systemWater-cooled
TurbochargerNone
Timing systemChain-driven
Oil typeGenesis Genuine Oil 5W-30 (API SP)
Practical Implications

The naturally aspirated V8 provides a smooth, linear power delivery ideal for relaxed cruising but demands premium unleaded fuel (RON 95 or higher) for optimal performance and knock prevention. Using the specified 5W-30 API SP oil is critical for protecting high-RPM components. The timing chain is designed for the engine's lifetime but should be inspected if unusual noises arise. Oil consumption, while noted in TSB-17-EN-005, is considered normal for high-performance V8s and requires monthly level checks.

Data Verification Notes

Oil Specs: Requires Genesis Genuine Oil 5W-30 meeting API SP specification (Genesis Owner's Manual G90).

Emissions: Euro 6 certification applies to all 2016–2020 Tau 5.0 engines (VCA Type Approval #VCA/EMS/5680).

Power Ratings: Measured under SAE J1349 standards. Output figures are for standard tune (Genesis TIS Doc. G-V8-NA-03).

Primary Sources

Genesis Technical Information System (TIS): Docs G-V8-NA-03, TSB-17-EN-005

VCA Type Approval Database (VCA/EMS/5680)

SAE International: J1349 Engine Power Certification Standards

TAU-5-0 Compatible Models

The Genesis Tau 5.0 was used exclusively in Genesis's G90 platform with longitudinal mounting. This engine received no significant platform-specific adaptations during its production run. All applications are documented in OEM technical bulletins.

Make:
Genesis
Years:
2016–2020
Models:
G90 Sedan
Variants:
5.0 V8
View Source
Genesis Group PT-2019
Identification Guidance

Locate the engine code stamped on the front of the engine block, near the timing cover (Genesis TIS G-V8-NA-03). The 8th digit of the VIN is 'V' for the 5.0 V8 G90 variant. Visually, the engine is identifiable by its large displacement "5.0" badging on the engine cover and the distinctive V8 intake manifold. Service parts are generally consistent across all model years.

Identification Details

Evidence:

Genesis TIS Doc. G-V8-NA-03

Location:

Stamped on the front of the engine block, near the timing cover (Genesis TIS G-V8-NA-03).

Visual Cues:

  • Large 5.0 badging on the polished alloy engine cover.
  • Distinctive V8 intake manifold with individual runners visible.
Maintenance Advisory

Issue:

Higher-than-average oil consumption is a documented characteristic at higher mileages.

Evidence:

Genesis TSB-17-EN-005

Recommendation:

Monitor oil level monthly and top up as needed; this is considered normal operation for this high-performance V8 per TSB-17-EN-005.

Common Reliability Issues - GENESIS TAU-5-0

The Tau 5.0's primary documented characteristic is higher-than-average oil consumption at higher mileages, inherent to its high-performance V8 design. Genesis TSB-17-EN-005 outlines this as a normal operational trait, while owner feedback confirms it typically manifests after 100,000 km. Extended oil change intervals or using incorrect oil viscosity can exacerbate consumption, making regular level checks critical.

Higher-than-average oil consumption
Symptoms: Low oil level warning between services, blueish exhaust smoke under heavy acceleration or deceleration, oil residue on tailpipe.
Cause: Normal wear of piston rings and valve stem seals under high-temperature, high-RPM operating conditions inherent to large-displacement naturally aspirated V8 engines.
Fix: Monitor oil level monthly and top up as needed with specified 5W-30 oil; consumption up to 1 liter per 1,000 km is considered within normal limits per TSB-17-EN-005.
Catalytic converter efficiency degradation
Symptoms: Check engine light with catalyst efficiency codes (P0420/P0430), slightly reduced fuel economy, failed emissions test.
Cause: Gradual breakdown of the catalytic substrate over time due to high exhaust temperatures and normal aging, reducing its ability to convert pollutants.
Fix: Replace the affected catalytic converter assembly with a new OEM unit; ensure no underlying engine misfires or rich fuel conditions are present.
Variable valve timing (VVT) solenoid failure
Symptoms: Rough idle, hesitation during acceleration, check engine light with camshaft position or VVT-related codes.
Cause: Internal wear or clogging of the oil passages in the variable valve timing solenoids, preventing precise control of camshaft phasing.
Fix: Replace the faulty VVT solenoid(s) and perform an oil and filter change to ensure clean oil flow; clear fault codes and verify operation.
Intake manifold runner control (IMRC) issues
Symptoms: Loss of low-end torque, whistling or hissing noises from the intake, check engine light for IMRC position sensor or actuator faults.
Cause: Wear or failure of the intake manifold runner control actuator or position sensor, preventing the system from optimizing airflow for different RPM ranges.
Fix: Diagnose specific fault code; replace the faulty IMRC actuator or sensor assembly as required by Genesis TIS procedures.
Research Basis

Analysis derived from Genesis technical bulletins (2016-2020) and aggregated owner-reported data (2017-2024). Repair procedures should follow manufacturer guidelines.

Frequently Asked Questions about GENESIS TAU-5-0

Find answers to most commonly asked questions about GENESIS TAU-5-0.

Research Resources

Comprehensive technical documentation and regulatory references

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Primary Sources & Documentation
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Primary Sources

GENESIS 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.

Official Documentation

Regulatory Compliance

Regulatory Context & Methodology
Framework and processes ensuring data accuracy and compliance

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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Last Updated: 16 August 2025

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

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