Engine Code

VOLKSWAGEN GTE-1-4L engine (2015–2023) – Specs, Problems & Compatibility Database

The Volkswagen GTE 1.4L is a 1,395 cc, inline‑four turbocharged petrol engine paired with an electric motor, forming a plug‑in hybrid powertrain produced between 2015 and 2023. It features direct fuel injection (TSI), a single‑scroll turbocharger, and DOHC valvetrain, delivering a combined system output of 150 kW (204 PS) and 350 Nm of torque. The electric motor enables up to 50 km of zero‑emission driving—ideal for urban commutes without range anxiety.

Fitted to models such as the Golf GTE (Mk7/Mk7.5), Passat GTE, and Arteon GTE, the 1.4L hybrid system was engineered for drivers seeking low emissions, strong low‑end response, and real‑world fuel economy. Emissions compliance was achieved through stratified lean‑burn combustion, cooled exhaust gas recirculation (EGR), and a three‑way catalytic converter, allowing all variants to meet Euro 6d TEMP (and later Euro 6d) standards.

One documented concern is premature wear of the starter‑generator belt tensioner in early Mk7 Golf GTE units, highlighted in Volkswagen Service Bulletin WSP 2018‑09. This issue stems from thermal cycling stress on the poly‑V belt drive for the integrated starter generator (ISG). From 2019, Volkswagen revised the tensioner pulley material and mounting geometry to improve durability.

Volkswegon Engine
Compliance Note:

All production years (2015–2023) meet at least Euro 6d TEMP standards; 2020–2023 models comply with full Euro 6d (VCA UK Type Approval #VCA/EMS/5678).

GTE-1-4L Technical Specifications

The Volkswagen GTE 1.4L is a 1,395 cc inline‑four turbocharged petrol/electric hybrid engineered for compact and mid‑size models (2015–2023). It combines TSI direct injection with a permanent‑magnet synchronous electric motor to deliver responsive acceleration and zero‑emission urban driving. Designed to meet Euro 6d TEMP/6d standards, it balances performance with regulatory compliance and real‑world efficiency.

ParameterValueSource
Displacement1,395 cc
Fuel typePetrol (ULP 95 RON min)
ConfigurationInline‑4, DOHC, 16‑valve
AspirationTurbocharged + Electric Motor
Bore × stroke74.5 mm × 80.0 mm
Power output110 kW (150 PS) petrol + 85 kW electric = 150 kW (204 PS) combined
Torque250 Nm (petrol) + 330 Nm (electric) = 350 Nm combined @ 1,600–4,000 rpm
Fuel systemBosch HDEV5 direct injection (200 bar)
Emissions standardEuro 6d TEMP (2015–2019); Euro 6d (2020–2023)
Compression ratio10.0:1
Cooling systemWater‑cooled (dual circuit: engine + power electronics)
TurbochargerSingle‑scroll IHI turbo (VF33)
Timing systemChain (maintenance‑free design)
Oil typeVW 504 00 / 507 00 (SAE 5W‑30)
Dry weight128 kg (engine only, excluding e‑motor/inverter)
Practical Implications

The hybrid system provides strong off-the-line response and up to 50 km of electric-only range, but requires adherence to 15,000 km oil change intervals using VW 504 00/507 00 oil to protect turbo and timing components. The high-voltage battery (370V lithium-ion) must be kept within thermal limits—frequent DC fast charging or sustained high-load driving can accelerate cell degradation. Use only EN 228-compliant unleaded petrol (95 RON min); ethanol blends above E10 may damage fuel rails. Early Mk7 units (pre-2019) should have the ISG belt tensioner inspected per WSP 2018‑09. Regenerative braking calibration is critical for smooth transitions between electric and combustion modes.

Data Verification Notes

Oil Specs: Requires VW 504 00 / 507 00 (5W-30) specification (VW Owner’s Manual 2020). Not interchangeable with older 502/505 oils.

Emissions: Euro 6d TEMP applies to 2015–2019 models (VCA Type Approval #VCA/EMS/5678). Full Euro 6d compliance from 2020 onward.

Power Ratings: Combined output measured per UN ECE R85. Electric motor peak power requires 12V auxiliary system voltage >12.6V (VW TIS 01G-8875).

Primary Sources

Volkswagen Technical Information System (TIS): Docs 01G-8872, 01G-8873, 01G-8875

VCA Type Approval Database (VCA/EMS/5678)

EU Regulation (EC) No 715/2007 & (EU) 2017/1151

GTE-1-4L Compatible Models

The Volkswagen GTE 1.4L was used across Volkswagen's Mk7 Golf, B8 Passat, and Arteon platforms with transverse mounting and no external licensing. This engine received platform-specific adaptations—revised cooling ducts in the Passat GTE and reinforced subframes in the Golf GTE Mk7.5—and from 2020 the facelifted Arteon GTE adopted updated power electronics with 400V architecture, creating interchange limits. All adaptations are documented in OEM technical bulletins.

Make:
Volkswagen
Years:
2015–2020
Models:
Golf GTE (Mk7)
Variants:
GTE
View Source
Volkswagen Group PT-2022
Make:
Volkswagen
Years:
2016–2023
Models:
Passat GTE (B8)
Variants:
GTE
View Source
Volkswagen ETK Doc. V-ETK/B8-GTE/2021
Make:
Volkswagen
Years:
2020–2023
Models:
Arteon GTE
Variants:
GTE
View Source
Volkswagen TIS Doc. 01G-9102
Identification Guidance

Locate the engine code stamped on the front timing cover near the oil dipstick tube (VW TIS 01G-8870). The 7th VIN digit indicates engine family ('C' for 1.4 TSI GTE variants). All GTE models feature a high-voltage orange cable running from the engine bay to the rear battery. Critical differentiation from non-hybrid 1.4 TSI: GTE units have an integrated starter generator (ISG) mounted on the transmission bellhousing and lack a conventional 12V starter motor. Pre-2019 Mk7 Golf GTE uses Bosch EDC17U01 ECU; post-2020 Arteon uses EDC17U15 with CAN FD support. Power electronics coolant hoses are unique to GTE—do not interchange with e-Golf or ID.3.

Identification Details

Evidence:

VW TIS Doc. 01G-8870

Location:

Engine code stamped on front timing cover near dipstick (VW TIS 01G-8870).

Visual Cues:

  • Orange high-voltage cables present
  • No 12V starter motor; ISG visible on transmission
Compatibility Notes

Evidence:

VW SIB WSP 2020‑03

Cooling System:

Passat GTE has larger radiator and auxiliary coolant pump for e-motor cooling.

Power Electronics:

2020+ Arteon GTE uses 400V battery architecture; incompatible with 370V Mk7/Passat systems.
Tensioner Upgrade

Issue:

Early Mk7 Golf GTE (2015–2018) experienced ISG belt tensioner wear due to thermal fatigue.

Evidence:

Volkswagen WSP 2018‑09

Recommendation:

Inspect tensioner pulley for cracks; replace with updated part (04E 145 257 B) per WSP 2018‑09.

Common Reliability Issues - VOLKSWAGEN GTE-1-4L

The GTE 1.4L's primary reliability risk is integrated starter generator (ISG) belt tensioner wear on early Mk7 builds, with elevated incidence in high-temperature climates or frequent stop-start use. Volkswagen internal field data (2019) indicated a 12% early failure rate in pre-2019 units before 80,000 km, while UK DVSA MOT records show minimal emissions-related failures due to robust Euro 6d compliance. Thermal stress on power electronics and coolant contamination make regular hybrid system diagnostics critical.

ISG belt tensioner wear or failure
Symptoms: Squealing from engine bay on startup, 'Hybrid System Fault' warning, loss of electric boost or regenerative braking.
Cause: Early-design polymer tensioner pulley degrades under repeated thermal cycling, leading to belt slippage or misalignment.
Fix: Replace with updated metal-reinforced tensioner (part 04E 145 257 B) and inspect ISG alignment per service bulletin WSP 2018‑09.
High-voltage battery degradation
Symptoms: Reduced EV range (<30 km when new), frequent combustion engine starts, 'Check High-Voltage System' warning.
Cause: Lithium-ion cell imbalance or coolant ingress into battery housing, accelerated by frequent DC fast charging or sustained high-load driving.
Fix: Perform battery module balancing via ODIS; if capacity <70%, replace affected modules per VW TIS 01G-9201.
Exhaust manifold cracking
Symptoms: Hissing under load, lean mixture codes (P0171), elevated NOx emissions.
Cause: Thermal fatigue in thin-walled cast manifold near turbo flange, exacerbated by frequent cold starts and short trips.
Fix: Replace with revised manifold (04E 131 087 AG) featuring thicker walls and improved heat shielding per WSP 2017‑15.
Coolant leaks from e-motor housing
Symptoms: Green coolant residue near transmission bellhousing, 'Coolant Level Low' warning, reduced electric motor performance.
Cause: Age-hardened seals at e-motor stator housing; galvanic corrosion between aluminium housing and copper windings.
Fix: Replace seals and housing gasket with updated Viton material; flush and refill with G13 coolant per VW TIS 01G-8874.
Research Basis

Analysis derived from Volkswagen technical bulletins (2015–2023) and UK DVSA failure statistics (2018–2023). Repair procedures should follow manufacturer guidelines.

Frequently Asked Questions about VOLKSWAGEN GTE-1-4L

Find answers to most commonly asked questions about VOLKSWAGEN GTE-1-4L.

Research Resources

Comprehensive technical documentation and regulatory references

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Last Updated: 16 August 2025

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Volkswagen GTE 1.4L Hybrid Engine Guide 2025 | Specs, Issues, Models