Hybrid · 2003–now
Enter your VIN and mileage and get a plan built for your exact engine and gearbox.
All about the Lexus RXAll about the 2.0 / 2.5 Hybrid (M20A / A25A / 2AR) engine
The 2.0 / 2.5 Hybrid (M20A / A25A / 2AR) engine was fitted to the Lexus RX (2003–now). In the EU that is 21.7 % of all new cars of this generation.
Versions: 2.5 185 hp, 2.5 190 hp, 2.0 238 hp, 2.5.
The most expensive known risk is hybrid battery ageing (weak modules): it usually appears at 250,000–350,000 km and costs €1,500–4,000 to fix.
✓ The faults of this engine were checked against sources (10/2026). Each item has at least two independent sources or an official recall or parts-maker technical note.
Signs: Coolant traces or dried pink crust at the pump, falling coolant level, sweet smell
Fix: Inspect the pump weep hole and seal; replace the pump and refill with Toyota long-life coolant
Signs: 'Engine Maintenance Required' message, codes P2681 (P268111 / P268115), small coolant leak at the valve, odd air-conditioning behaviour
Fix: Ask a Toyota dealer by VIN about a service programme; otherwise replace the valve / bypass hose with the updated part
Signs: Check engine light with P26CA14 / P26CA31, coolant leak at the pump, temperature warning
Fix: Stop if the temperature rises; replace the electric pump per Toyota's bulletin, check warranty cover first
Signs: Check engine light with P0A80 or P0A7F, fan noise from the rear seat area, battery runs hot and wears faster
Fix: Remove and clean the battery fan and air duct, clean or replace the intake filter; check the battery itself if the codes return
Signs: Check Hybrid System warning with P0A80, engine runs more often, less electric assist, fuel use up
Fix: Have the battery tested (Toyota Hybrid Health Check); replace the pack with a new or quality reconditioned one, and clean its cooling fan at the same time
Signs: Hybrid system warning and code P0A93, no coolant movement in the inverter reservoir with the car on, reduced power
Fix: Replace the inverter coolant pump and bleed the inverter cooling circuit; stop driving if the warning appears to avoid an overheated inverter
Signs: Delayed or harsh shifts
Fix: Fluid service, repair
Typical routine maintenance cost for 100,000 km: €1,950–4,500. Sum of the services and wear parts in the plan above (about 15,000 km a year, independent workshop), without faults.
Intervals and typical prices for the Lexus RX with the 2.0 / 2.5 Hybrid (M20A / A25A / 2AR) engine. The app gives the exact plan for your mileage.
| Item | Interval | Typical price |
|---|---|---|
| Inverter coolantHybrid system | every 160,000 km or every 120 months | €80–160 |
| Engine oil + oil filterEngine | every 15,000 km or every 12 months | €70–150 |
| Cabin (pollen) filterClimate | every 15,000 km or every 12 months | €15–40 |
| Brake fluidBrakes | every 24 months | €50–95 |
| A/C service (regas + desiccant)Climate | every 24 months | €70–150 |
| Air filterEngine | every 30,000 km or every 24 months | €15–45 |
| Spark plugsIgnition | every 60,000 km or every 48 months | €50–160 |
| Hybrid battery cooling filter cleanHybrid system | every 30,000 km | €0–40 |
| Hybrid transaxle fluidTransmission | every 100,000 km | €80–160 |
| Auxiliary (serpentine) beltEngine | every 120,000 km | €70–180 |
| Coolant replacementCooling | every 150,000 km or every 96 months | €70–150 |
| Timing chain inspection (listen on cold start)Engine | every 150,000 km | €0–120 |
| Brake pads (regen-assisted)Brakes | usually at 80,000–160,000 km | €60–150 |
| Tyres (set of 4)Wheels | usually at 40,000–60,000 km | €320–700 |
| Wiper bladesBody | checked at service | €20–50 |
| 12V batteryElectrical | checked at service | €100–220 |
| Version | Share | Years | CO₂ | Fuel use |
|---|---|---|---|---|
| 2.5 Hybrid2,487 cm³ · 136 kW (185 hp) | 9.7 % | 2022–2025 | 25 g/km | 1.1 L |
| 2.5 Hybrid2,487 cm³ · 140 kW (190 hp) | 5.3 % | 2023–2025 | 143 g/km | 6.3 L |
| 2.0 Petrol1,998 cm³ · 175 kW (238 hp) | 4.6 % | 2015–2023 | 229 g/km | 10.3 L |
| 2.5 Hybrid2,487 cm³ | 1.3 % | 2025–2025 | 135 g/km | 5.8 L |
Source: European Environment Agency (EEA), monitoring of CO₂ emissions from new passenger cars, CC BY 4.0. CO₂ and fuel use are official type-approval values (WLTP from 2021), not real-world consumption.
Recalls the manufacturer published in the United Kingdom for this model (12). The same recalls usually apply across Europe. Ask an authorised dealer to check by VIN whether your car is affected and whether the work has been done.
The faults with the highest risk: hybrid battery ageing (weak modules) (250,000–350,000 km, €1,500–4,000); hybrid battery cooling fan or intake filter clogged with dust (60,000–250,000 km, €50–250).
Chain.
0W-16 / 0W-20 · API SN · ~4.5 L · every 15,000 km.
Toyota Corolla (E210) 2019–Toyota C-HR 2016–Toyota RAV4 (XA50) 2018–Toyota RAV4 (XA40) 2012–2018Lexus NX 2014–Lexus UX 2018–
Main sources for the faults of this engine:
Faults, intervals and prices are indicative and collected from public sources and owner experience; always rely on the service book and a qualified workshop. Test statistics: DVSA – Anonymised MOT tests and results, Open Government Licence v3.0. Dutch tests: RDW Open Data (CC0). Engine versions: EEA, monitoring of CO₂ emissions from new passenger cars (CC BY 4.0, DG CLIMA). Owner complaints: NHTSA ODI (public domain). Recalls: DVSA Vehicle Safety Branch Recalls Database, OGL v3.0. Brand and model names are trademarks of their owners and are used only to describe the vehicles. How we check the data →
Updated 29/10/2026