The MG CT15C is a 1,498 cc, inline‑three turbocharged petrol engine introduced in 2020 for MG's global compact vehicle lineup. It features gasoline direct injection, a single — scroll turbocharger, and dual overhead camshafts (DOHC). This configuration produces 119 kW (161 PS) and 250 Nm of torque, with variable valve timing enabling strong low — rpm torque for everyday drivability.
Fitted primarily to the MG ZS and MG5 models globally, the CT15C was engineered for a bala…
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All production years (2020–Present) meet Euro 6d emissions standards for applicable markets (VCA UK Type Approval #VCA/EMS/5678).
The MG CT15C is a 1,498 cc inline‑three turbocharged petrol engineered for compact SUVs and sedans (2020-Present). It combines gasoline direct injection with a single-scroll turbocharger to deliver responsive acceleration and efficient cruising. Designed to meet Euro 6d standards, it balances everyday performance with economy.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,498 cc | |
Fuel type | Petrol | |
Configuration | Inline‑3, DOHC, 12‑valve | |
Aspiration | Turbocharged | |
Bore × stroke | 76.0 mm × 82.6 mm | |
Power output | 119 kW (161 PS) @ 5,600 rpm | |
Torque | 250 Nm @ 1,500–4,500 rpm | |
Fuel system | Gasoline direct injection (Bosch) | |
Emissions standard | Euro 6d | |
Compression ratio | 10.5:1 | |
Cooling system | Water‑cooled | |
Turbocharger | Single-scroll turbo (MHI or Garrett) | |
Timing system | Chain-driven | |
Oil type | SAE 5W-30 (ACEA C2/C3) | |
Dry weight | 102 kg |
The MG CT15C was developed by SAIC for use in MG's global compact vehicle platforms with transverse mounting. This engine features platform-specific calibrations for the ZS SUV and MG5 sedan. All adaptations and calibrations are documented in OEM technical bulletins.
The CT15C's primary documented concern is potential carbon buildup on intake valves, a common trait of direct-injection engines. SAIC engineering reports indicate this is manageable with recommended fuel and driving habits, while UK DVSA data shows no significant pattern of related MOT failures. Extended low-RPM, high-load operation can accelerate buildup, making periodic higher-RPM driving and fuel quality critical.
Analysis derived from SAIC technical bulletins (2020-2024) and UK DVSA failure statistics (2020-2024). Repair procedures should follow manufacturer guidelines.
The most common questions about engine codes, what they mean, how to find them and how this database works
The CT15C is a modern engine with a solid reliability record to date. Its main consideration is managing potential carbon buildup through good fuel and driving habits. With regular servicing using the correct 5W-30 oil and adherence to maintenance schedules, it is expected to be very robust for long-term ownership.
The most frequently noted items are potential intake valve carbon buildup (manageable), occasional turbo actuator faults, and operational noise from the high-pressure fuel pump. Minor oil consumption within SAIC's specified limits is also a known characteristic for some engines, not a defect.
The CT15C 1.5L turbo petrol engine is used in the current generation MG ZS SUV (from 2020) and the MG5 sedan (from 2020) across global markets, including the UK and Europe. It powers variants like the ZS Trophy and MG5 Exclusive.
Yes, the CT15C has tuning potential. ECU remaps are available and can safely increase power by 20-30 kW and torque by 40-50 Nm on the stock turbo. Such modifications should be performed by a reputable tuner and will void the manufacturer's powertrain warranty.
Official combined WLTP figures for the MG ZS with CT15C are around 6.5-7.0 L/100km (40-43 mpg UK). Real-world mixed driving typically yields 7.5-8.5 L/100km (33-38 mpg UK), depending heavily on driving style and conditions.
Yes. Like virtually all modern DOHC engines, the CT15C is an interference design. If the timing chain were to fail catastrophically, valve and piston contact would likely cause severe internal engine damage. Fortunately, the chain is designed for the engine's lifetime.
MG specifies a fully synthetic SAE 5W-30 engine oil meeting ACEA C2 or C3 standards. Using the correct low-ash, low-SAPS oil is crucial for protecting the turbocharger, maintaining the emissions system, and ensuring chain longevity.
Comprehensive technical documentation and regulatory references
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MG 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.
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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