2003 SUZUKI Aerio J18A/J20A (RS415)

Engine identity

Oils and fluids

Service and parts data

Common and chronic problems

• Rust in certain climates
• Suspension wear
• Ignition coil failures on higher mileage

First checks

• Check timing chain tension
• Inspect cooling system for leaks
• Verify condition of spark plugs and ignition coils

Avant de remplacer des pièces

• 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 offerings and power outputs vary by market; Japan had smaller displacement engines.
• Model sold mainly in North America, Japan, Australia, and selected European markets.