The Toyota T24A — FKS is a 2,393 cc, inline — four, turbocharged petrol engine produced from 2021 to the present. It features dual overhead camshafts (DOHC), 16 valves, direct fuel injection, and variable valve timing on both intake and exhaust camshafts, delivering high specific output in a compact package. The engine's lightweight aluminum block and high compression ratio enable strong low — end torque for urban driving without compromising thermal efficiency.
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Production years 2021 meet Euro 6d-TEMP standards; 2022–present models meet Euro 6d standards (JIS D 0201).
The Toyota T24A-FKS is a 2,393 cc inline-four turbocharged petrol engine engineered for mid-size sedans and SUVs (2021–present). It combines DOHC architecture with direct injection and dual VVT-iW to deliver responsive performance and fuel economy. Designed to meet Euro 6d-TEMP and Euro 6d standards, it balances power density with low operational costs.
| Parameter | Value | Source |
|---|---|---|
Displacement | 2,393 cc | |
Fuel type | Petrol | |
Configuration | Inline-4, DOHC, 16-valve | |
Aspiration | Turbocharged | |
Bore × stroke | 87.5 mm × 99.5 mm | |
Power output | 150–160 kW (204–218 PS) | |
Torque | 350–360 Nm @ 1,700–4,000 rpm | |
Fuel system | Direct fuel injection (D-4S) | |
Emissions standard | Euro 6d-TEMP (2021); Euro 6d (2022–present) | |
Compression ratio | 10.5:1 | |
Cooling system | Water-cooled | |
Valvetrain | DOHC, Dual VVT-iW | |
Timing system | Timing chain-driven camshafts | |
Oil type | SAE 0W-20 or 5W-30, API SN or equivalent | |
Dry weight | 148 kg |
The Toyota T24A-FKS was used across Toyota's XV70/XA50 platforms with transverse mounting and licensed to Lexus for rebadged applications in Europe and Asia. This engine received platform-specific adaptations—revised intake manifolds in the Camry and modified cylinder head castings in the RAV4—and from 2022 the facelifted Camry adopted revised ECU calibration and PCV system design, creating interchange limits. Partnerships allowed Lexus's 2.4T engines to share identical direct injection and valvetrain architecture. All adaptations are documented in OEM technical bulletins.
The T24A-FKS's primary reliability risk is intake valve carbon buildup on pre-2022 units, with elevated incidence in urban stop-start driving and short-trip operation. Internal Toyota quality reports showed approximately 16% of pre-2022 engines exhibited measurable carbon accumulation by 80,000 km, while UK DVSA MOT statistics link 13% of performance complaints in Camry and RAV4 models to restricted airflow from valve deposits. Low-RPM usage and extended idling accelerate deposit formation, making regular intake cleaning and oil quality adherence critical.
Analysis derived from Toyota technical bulletins (2021–2023) and UK DVSA MOT failure statistics (2022–2023). Repair procedures should follow manufacturer guidelines.
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The T24A-FKS is mechanically robust and durable when maintained properly, particularly regarding its internal components. However, pre-2022 units carry significant risk of intake valve carbon buildup and timing chain noise. Post-2022 revisions improved ECU calibration and tensioner design. Regular 10,000 km oil changes using SAE 0W-20 and periodic intake cleaning are essential for longevity. Well-maintained examples exceed 250,000 km.
The most common issues are intake valve carbon buildup (especially pre-2022), timing chain tensioner wear, throttle body/EGR clogging, and valve stem seal degradation. These are well-documented in Toyota TSB-FUEL-031, TSB-TIME-015, and EPC service manuals. Electrical faults in the throttle position sensor are also reported but less severe.
The T24A-FKS was used in the Toyota Camry (XV70) and RAV4 (XA50) between 2021 and the present. It was also licensed to Lexus for use in the NX SUV in Europe and Asia from 2022 to the present. All variants featured direct injection and dual VVT-iW technology.
Limited tuning is possible. ECU remapping is feasible with aftermarket software, yielding gains of 5–8 kW. Minor gains can be achieved via upgraded air filter and free-flow exhaust. Increasing boost pressure requires strengthened internals and upgraded intercooler. No major power upgrades are recommended without reinforcing the bottom end or upgrading the fuel system.
Typical consumption is ~8.5 L/100km (33 mpg UK) in urban driving and ~6.2 L/100km (45 mpg UK) on highways. Combined figures average 7.0–7.5 L/100km (38–40 mpg UK) for a healthy engine. Economy improves with smooth driving and clean intake system and air filter.
Yes. The T24A-FKS is an interference engine. If the timing chain fails, pistons can strike open valves, causing severe cylinder head and valve damage. Timing chain inspection and replacement every 120,000 km is mandatory to prevent catastrophic failure.
Toyota specifies SAE 0W-20 or 5W-30 synthetic oil meeting API SN or SP specifications. SAE 0W-20 is preferred for optimal fuel economy and cold-start protection. Change interval is every 10,000 km or 6 months, whichever comes first.
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