A Toyota RAV4 2.5 PHEV A25A-FXS engine replacement typically costs £1,472-£2,400 for a used unit, £2,500-£4,200 for a reconditioned engine, and £3,800-£5,500 for a fully rebuilt unit (supply only). Fitting adds approximately £1,200-£1,800 in labour (10-14 hours at specialist rates). Total fitted cost for a rebuilt engine typically ranges from £5,000 to £7,300.

• Used A25A-FXS from £1,472 - lower cost, unknown provenance
• Reconditioned A25A-FXS from £2,500 - tested and warrantied
• Rebuilt A25A-FXS from £3,800 - like-new with 12-month warranty

Common warning signs include the "Maintenance Required" or "Check Engine" light (coolant bypass valve failure with codes P261B or P261C), hybrid system malfunction errors (high-voltage cable corrosion), loss of cabin heat, overheating, and unusual engine noise.

• "Maintenance Required" or "Check Engine" light - coolant bypass valve
• Hybrid system malfunction - high-voltage cable corrosion
• Loss of cabin heat or overheating - thermal management failure

For a Toyota RAV4 2.5 PHEV worth £28,000-£45,000, a rebuilt A25A-FXS engine (£3,800-£5,500 supply) is almost always a sound investment. The RAV4 2.5 PHEV retains strong value, and a quality rebuilt unit with warranty offers better long-term value than scrapping the car or selling it as a non-runner.

• Vehicle worth £25,000+ - replacement is a sound investment
• Rebuilt engine with warranty - better than unknown used unit
• RAV4 2.5 PHEV values remain strong - replacement preserves value

A Toyota RAV4 2.5 PHEV A25A-FXS engine replacement typically takes 10-14 hours for a specialist workshop. Supply-only delivery takes 1-2 days, and supply & fit typically requires 2-4 working days total, depending on workshop availability.

• Supply only: 1-2 days for delivery
• Supply & fit: 2-4 working days total
• Hybrid system calibration adds some time

The A25A-FXS is generally reliable, but several issues have been documented. The coolant bypass valve can seize (60,000-100,000 miles), the high-voltage cable can corrode ("Cablegate"), and EGR cooler leaks have been reported. Toyota also issued a recall for potential engine cracks in some 2019-2020 models. Regular maintenance and prompt attention to warning lights are essential.

• Generally reliable with proper maintenance
• Coolant bypass valve failure - common high-mileage issue
• High-voltage cable corrosion - known weak point

The RAV4 2.5 PHEV uses the same A25A-FXS 2.5-litre Atkinson-cycle petrol engine as the standard hybrid, but with a larger 18.1kWh lithium-ion battery and more powerful electric motors, delivering 302bhp (38% more than the standard hybrid) and a 46-mile EV range. The PHEV also features a boost converter in the power control unit for enhanced performance.

• RAV4 2.5 PHEV: 302bhp, 46-mile EV range, 18.1kWh battery
• RAV4 Hybrid: lower output, smaller battery, shorter EV range
• PHEV: plug-in charging, higher performance