2020 Alfa Romeo Giulietta 940A4T003/940A4T004 (940)

Engine identity

Oils and fluids

Service and parts data

Common and chronic problems

• Timing chain tensioner wear (older models)
• Turbocharger issues rarer but possible in high-mileage units

First checks

• Inspect timing chain and tensioner if high mileage
• Check turbocharger condition on diesel variants

Antes de cambiar piezas

• 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

• 2020 Giulietta production ended late that year; availability varies by market.
• Diesel engines primarily sold in Europe; petrol variants more common worldwide.