2011 Toyota Yaris 1SZ-FE/1NR-FE (XP90)

Engine identity

Oils and fluids

Service and parts data

Common and chronic problems

• Throttle body carbon buildup
• Clutch wear on manual transmissions
• Oil consumption in some 1NZ-FE engines

First checks

• Inspect timing belt/chain condition
• Check for oil leaks around valve cover
• Verify condition of suspension and brakes

Vor dem Teiletausch

• Save fault codes and freeze-frame data before clearing anything.
• Check engine oil, coolant and transmission fluid using the correct temperature and service procedure.
• Verify power, ground, connectors, hoses, leaks and live data before replacing expensive parts.

Important notes

• Engine options and equipment vary significantly by market; North America mainly 1.5L petrol with VVT-i.
• Diesel 1ND-TV engine primarily available in European markets.
• Model sold globally but with regional adjustments in equipment and emission standards.