Toyota Aygo AB40

Extremely robust three-cylinder with timing chain. Virtually indestructible with regular oil changes. Occasional elevated oil consumption past 150,000 km. Ideal for city and short-run use.

• !! Water pump failure from 100,000 km

  The water pump on the 1KR-FE has a limited service life and can fail prematurely. Several cases of failure at relatively low mileages have been documented.

  Symptoms: Temperature gauge rising abnormally, coolant loss, squealing noise from the engine area
  150–350 $
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• !! Water pump leaking from 60,000 km

  The water pump on the 1KR-FE tends to develop shaft seal leaks from around 50,000 km. The resulting coolant loss can lead to overheating if left unaddressed.

  Symptoms: Coolant level drops with no visible leak, coloured deposits around the water pump, elevated engine temperature
  150–400 $
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• ! Elevated oil consumption due to piston rings from 150,000 km

  With predominantly short-trip use the piston rings tend to stick, leading to oil consumption of up to 1 litre per 3,000 km. Particularly common on older, high-mileage vehicles.

  Symptoms: Oil level drops noticeably between service intervals, blue smoke on cold start or under hard acceleration
  400–900 $
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+ 3 more engine weaknesses + vehicle weaknesses