Vehicles using AR 37203 engine list:

Engine AR 37203 in the Alfa Romeo 147 1.6 TS commonly faces issues like timing belt wear, ignition coil failure, and throttle body carbon buildup. Diagnose timing belt problems by checking for unusual noises or engine misfires; replace the belt every 60,000-80,000 km to prevent catastrophic failure. Ignition coil faults cause rough idling and misfires; test coils with a multimeter and replace faulty units promptly. Carbon buildup in the throttle body leads to poor throttle response; clean it regularly using appropriate throttle body cleaner. Regular oil changes and using quality fuel help maintain engine health and prevent premature wear.