Toyota Aygo X 1.0 Engine ReplacementCompare Prices & Get Quotes
Get quotes today for your Toyota Aygo X 1.0 engine replacement from trusted UK specialists. Compare prices on reconditioned, rebuilt and used 1KR-B52 engines to find the best deal for your Aygo X - with UK-wide supply and fit options.
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How it works
3 Simple Steps to Finding the Right Replacement Engine
Clear information first, then the right engine and specialist for your exact vehicle.
Variant History
Toyota Aygo X 1.0 Engine History & Specs at a Glance
The Toyota Aygo X launched in March 2022 as a crossover-styled city car, replacing the standard Aygo hatchback. Built on the TNGA GA-B platform shared with the Toyota Yaris, the Aygo X retained the 1KR-B52 1.0-litre three-cylinder petrol engine from the previous Aygo models, offering a punchy and efficient powertrain for urban driving.
2022
1KR-B52, 1.0-litre petrol, 72hp - launched with the all-new Aygo X crossover city car
2022
5-speed manual and CVT automatic transmissions available
2025
1.0-litre petrol discontinued; replaced by 1.5-litre M15A-FXE hybrid
Every engine fitted to the Toyota Aygo X 1.0 is covered below, with UK rebuilt pricing and known failure points.
Engine Codes & Pricing
Toyota Aygo X 1.0 Engine Codes Specifications & Replacement Cost
Find your exact engine code, specs and UK replacement cost guide.
Toyota Aygo X 1.0 Engine Problems Repair Cost vs Replacement
The Toyota Aygo X 1.0 (1KR-B52) is a reliable and efficient city car engine, but like any modern petrol unit, it has its weak points. Water pump failure and cold-start issues are the most commonly reported problems. Rebuilt 1KR-B52 engines through EnginesMarket include upgraded components addressing these common failure points, plus a minimum 12-month unlimited-mileage warranty.
Common failure points and repair options
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Water Pump Failure
Affected
Toyota Aygo X 1.0 (1KR-B52, 2022-2025)
Typical failure mileage
10,000-40,000 miles
Root cause
Water pump failure has been reported on low-mileage Aygo X examples, with leaking seals causing coolant loss. The issue appears to affect some early production models and may be related to component quality.
Repair options
Repair tier
Dealer price
Specialist price
Water pump replacement
£350-£500
£200-£350
Full replacement - rebuilt/reconditioned engine
£2,500-£3,500
£1,800-£2,800
Our recommendation
If you notice coolant loss or a coolant smell from your Aygo X 1.0, have the water pump inspected promptly. If the vehicle is under warranty, use a Toyota dealer for a free replacement. For out-of-warranty cars, a specialist water pump replacement offers the best value.
Some Aygo X owners report cold-start issues where the engine cranks but struggles to fire. This may be related to the electronic throttle body, fuel system, or ECU calibration.
Repair options
Repair tier
Dealer price
Specialist price
Throttle body cleaning / ECU reset
£150-£250
£80-£150
Fuel system diagnosis
£200-£400
£150-£300
Full replacement - rebuilt/reconditioned engine
£2,500-£3,500
£1,800-£2,800
Our recommendation
If your Aygo X 1.0 struggles to start when cold, try turning the key to the ignition position and waiting a few seconds before starting. If the issue persists, have the electronic throttle body cleaned and ECU adaptations reset by a specialist. This resolves the majority of cold-start complaints.
Don't Let Engine Problems Write Off Your Toyota Aygo X 1.0
The 1KR-B52 engine is fundamentally reliable, but when problems do arise - whether water pump failure, cold-start issues, or high-mileage wear - a rebuilt engine with a 12-month warranty can give your Aygo X a new lease of life. Compare prices from UK specialists today and avoid main dealer premiums.
Toyota Aygo X 1.0 Engine ReplacementFrequently Asked Questions
Everything Toyota Aygo X 1.0 owners usually ask before choosing a rebuilt, reconditioned or used replacement engine.
A replacement 1KR-B52 engine for the Toyota Aygo X 1.0 typically costs £872-£1,800 for the engine alone (supply-only). With supply and fit, budget £1,800-£2,800 for a fully installed rebuilt unit with warranty. Used engines start from around £872.
The most common signs are coolant loss, a sweet smell from the engine bay, and visible coolant leaks around the water pump area. Some owners have reported water pump failure at as little as 10,000 miles. If left unaddressed, this can lead to overheating and engine damage.
With a typical Aygo X 1.0 worth £11,000-£15,000, replacement cost should be evaluated against vehicle value. For low-mileage cars, individual component replacement (e.g. water pump, throttle body) is usually more cost-effective. For high-mileage vehicles or those with internal damage, a rebuilt 1KR-B52 with 12-month warranty makes financial sense.
Vehicle under £10,000: consider used engine or component repair
Vehicle £10,000-£15,000: rebuilt engine with warranty is viable
A rebuilt 1KR-B52 includes upgraded components and warranty
With proper maintenance - regular oil changes and coolant checks - the 1KR-B52 engine can exceed 100,000-150,000 miles. The engine is known for its durability and is used across multiple Toyota and PSA models with good reliability records.
Expected lifespan: 100,000-150,000+ miles with good maintenance
Regular oil changes and coolant checks are critical
Address water pump issues promptly to prevent overheating
Yes, the Toyota Aygo X 1.0 uses the same 1KR-B52 engine as the later previous-generation Aygo models. This means engine compatibility extends across multiple models, including the Peugeot 108 and Citroën C1. However, always verify engine code and compatibility before purchasing a replacement.
A typical 1KR-B52 engine replacement on a Toyota Aygo X 1.0 takes 2-3 working days for a specialist workshop. This includes engine removal, preparation, installation of the replacement unit, fluid changes, and testing. Supply-only orders are typically dispatched within 1-2 working days for nationwide delivery.
Comparing quotes for your Toyota Aygo X 1.0 engine replacement is free, no-obligation, and specific to your exact 1KR-B52 engine code. Whether you need a used engine to keep costs down, a replacement water pump, or a fully rebuilt unit with a 12-month warranty for peace of mind, our UK specialist network has you covered. Enter your registration above and get tailored quotes today.
500+500+ Aygo engines supplied through our network
12-Month12-Month Warranty on every rebuilt 1KR-B52 engine