MG Engine Codes Database

Complete MG Engines Database (1924–2026)

engine-0engine-1engine-2

Covers MG petrol, diesel, and hybrid engines used across UK and European models - from classic A-Series and B-Series engines to modern VTi-Tech and turbocharged SGE units. Each engine code includes specifications, compatible vehicles, and emissions data, sourced from official MG Motor and EU records.

Engine Variants
Models Covered
of Engineering
Compliance Data

Data sourced from MG Motor Technical Documentation, EU Regulation (EC) No 715/2007, and SAIC Motor Engineering Reports.

Browse MG engine records

Find MG engine codes by family, model, or generation

Engine reference image
Engine CodeFuel TypeSeries
Petrol1 5l Egt
Petrol1 5l Phev Turbo
Petrol1 5t Egt
Petrol1 5t Gdi
Petrol1 5t Phev
Petrol15e4e
Petrol18k4e
Petrol2 0l Plug In Hybrid
Petrol2 0t
Petrol2 0t Mge
Petrol20a4e
Petrol20l4e
PetrolCT-Series
PetrolE-Series
ElectricEMG-Series
ElectricEMG-Series
ElectricityEMG-Series
ElectricEMG-Series
ElectricEMG-Series
ElectricEMG-Series
ElectricEMG-Series
ElectricEMG-Series
ElectricEMG-Series
ElectricEMG-Series

EV & Hybrid Engines

Explore MG's electrified powertrain technologies.

Engine specifications and technical data sourced from MG Motor Technical Documentation and EU Vehicle Type Approval Database. Consult vehicle documentation or professional guidance before undertaking mechanical work. Report errors or omissions through our contact channels.

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How to Find Your MG Engine Code

The engine code is essential for ordering parts, diagnosing issues, and verifying compatibility. It is not the same as the VIN or chassis number. This guide shows exactly where to find it - by model and engine type - using official MG Motor and DVLA sources

Engine Code

Engine Code

A unique identifier stamped on the engine block or cover used for parts and service.

VIN

VIN

The vehicle identification number that holds encoded vehicle and engine information.

Chassis Number

Chassis Number

The chassis or frame number used for registration and legal identification.

MG ZS (2018–Now)

MG ZS (2018–Now)

15S4C VTi-Tech

Locate the engine code on a label attached to the camshaft cover or timing belt cover. It is typically a white or silver sticker showing '15S4C' for the 1.5L VTi-Tech engine.

MG HS (2019–Now)

MG HS (2019–Now)

15C4E Turbo

The engine code is located on a label near the turbocharger or on the engine block. Look for '15C4E' designation for the 1.5L turbocharged engine producing 169 PS.

MG3 (2013–2024)

MG3 (2013–2024)

15S4C VTi-Tech

Open the bonnet and look at the top of the engine. The code is on a label attached to the camshaft cover or valve cover. Confirm '15S4C' for the 1.5L naturally aspirated engine.

MG6 (2010–2016)

MG6 (2010–2016)

18K4F Turbo

The engine code is cast into the engine block or on a label near the inlet manifold. Look for '18K4F' for the 1.8L turbocharged petrol engine.

Engine code locations per MG Motor Service Documentation. V5C field definitions from DVLA Guide to Vehicle Registration. VIN structure compliant with EU Regulation (EC) No 715/2007, Article 7.

MG Engine Technology Specifications and Reliability Data

A technical breakdown of MG's core engine systems including VTi-Tech, SGE turbocharged engines, timing architectures and modern design with documented reliability impacts. All data sourced from MG Motor Technical Documentation, SAIC Motor Engineering Reports and EU Regulation (EC) No 715/2007

Overview

MG's VTi-Tech (Variable Timing Intelligence) is a naturally aspirated engine family featuring DOHC configuration with variable valve timing for improved efficiency and performance across the rev range.

How it Works

The VTi-Tech system uses variable camshaft timing on the intake side to optimize valve timing based on engine speed and load, improving low-end torque and high-RPM power while maintaining fuel efficiency.

VTi-Tech engine mechanism
Evolution
VTi-Tech I

13S4C (1.3L)

Entry-level variant

VTi-Tech II

15S4C (1.5L)

Main production engine

VTi-Tech III

15S4C updated (2018)

Improved emissions, Euro 6

Sources
MG Motor Technical Service Information
SAIC Motor Engine Specifications 2023
Affected Engines
13S4C15S4C
COMMON ISSUES
  • Timing belt maintenance

    Regular replacement required at 60,000 miles

  • EGR valve clogging

    Common in urban driving conditions

  • Oil consumption

    Some units report increased consumption after 80,000 miles

MG Engine Production Facts Manufacturing Output and Partnerships

Authoritative data on MG's global engine production, plant operations, and strategic partnerships. All figures sourced from SAIC Motor Annual Reports, Sustainability Reports, and EU industrial compliance records.

Major Engine Production Plants

MG engines are manufactured at SAIC Motor facilities globally, with key production hubs in China and historical UK operations.

SAIC Longbridge Plant

🇬🇧SAIC Longbridge Plant(United Kingdom)

  • Historic UK facility at former MG Rover site
  • Engines: 18K4F Turbo, CKD assembly
  • Production ended 2016, moved to China
SAIC Shanghai Plant

🇨🇳SAIC Shanghai Plant(China)

  • Primary MG engine production hub
  • Engines: 15S4C VTi-Tech, 15C4E Turbo, SGE family
  • Capacity: Over 500,000 engines annually (2024)
SAIC Nanjing Plant

🇨🇳SAIC Nanjing Plant(China)

  • Secondary production and R&D facility
  • Engines: Electric drivetrains, hybrid systems
  • Capacity: 200,000 electrified powertrains/year

Annual Engine Production Volume

MG produces approximately 350,000+ engines per year. Note the complete phase-out of diesel by 2023 and rapid growth in hybrid and electric powertrains.

Diesel Phase-Out (Complete by 2023)
EV/Hybrid Growth (+25% since 2020)
Regulatory Impact: (EC) No 715/2007

Note: Diesel production was discontinued in 2016 due to Euro 6d compliance costs. MG has rapidly expanded EV and hybrid production to meet EU 2035 ICE phase-out targets.

0k80k160k240k320k400k180k2020220k2021280k2022350k2023400k2024 (e)Total Engines Produced
Petrol
Diesel
Hybrid

SAIC Motor Strategic Partnerships

SAIC Motor collaborates with General Motors and other partners for technology sharing and joint development.

Shared Development

SGE (Small Gasoline Engine) co-developed with GM

Production

Manufactured at SAIC facilities for MG and GM brands

GM-SAIC Collaboration: SGE Engine Family
  • Strategic partnership with General Motors for SGE engine family development.
  • SGE engines used in MG, Roewe, and select GM models globally.
  • Shared engineering: turbocharging, direct injection, and emissions technology.

SAIC Motor Strategic Partnerships – GM Collaboration

Powertrain Mix (2020–2024)

Shift in production reflects EU emissions policy and MG's electrification strategy.

Petrol55%
Diesel0%
Hybrid45%
Petrol
55–75%
Declining share; VTi-Tech and SGE Turbo engines
Diesel
0–5%
Completely phased out by 2023 due to Euro 6d
Hybrid/Electric
20–45%
Rapid growth: eHS PHEV, MG4 EV, ZS EV, MG5 EV

This aligns with Commission Regulation (EU) 2017/1151 (WLTP/RDE) and EU 2035 ICE phase-out roadmap.

Engine production data verified via SAIC Motor Annual Reports and EU type-approval records

Engine Code FAQ Common Questions Answered

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

Confirm the full engine designation using vehicle-specific manufacturer records and the engine marking. An engine serial number, a registration record and a marketed power badge are not automatically the same identifier. Match the VIN/build data and the installed engine before selecting parts or a replacement.

No. A factory-application reference and a replacement-interchange decision are different. Match the full engine designation, vehicle build data, emissions equipment, controls and relevant supplier/OEM information.

No. Records have different review states. Read the correction notice, source scope and application limits on the individual record. Missing technical fields must not be inferred from similar engine codes.

References, Disclaimers and Sources

EngineCode.uk provides reference information about MG engines. It is operated by Engine Finders UK Ltd and also offers an optional replacement-engine enquiry service. Technical information can contain errors or omissions. Check the sources and verification notes for the relevant record, and confirm the details for your vehicle before buying parts or arranging work.

EngineCode.uk is a reference website operated by Engine Finders UK Ltd. It is not an official manufacturer website and is not endorsed by the manufacturers whose engines it describes. Manufacturer names and trademarks are used to identify the subjects covered. Our ownership and any commercial routes are explained in our Ownership and Commercial Disclosure.

  • MG Motor – Technical Service Information, Service Manuals
  • SAIC Motor – Engineering Reports, Annual Reports, Sustainability Reports
  • EU Regulation (EC) No 715/2007 – Type-approval of light-duty vehicles
  • Commission Regulation (EU) 2017/1151 – WLTP and RDE testing procedures
  • UK DVLA Vehicle Approval and V5C Guidelines
DVLA: Engine Changes and MoT Compliance

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