Alfa Romeo Giulietta Workshop Manual

• Alfa Romeo Giulietta Wiring Diagram>>

Gas Engine

• 1.4 TB (120 hp) 
• 1.4 MultiAir (140, 170 hp)
• 1.75 TBi (235 hp)
• 1750 TBi (240 hp)

Diesel Engine

• 1.6 JTDm (105, 120 hp)
• 2.0 JTDm (140, 150, 170 hp)

🔧 Electrics and electronics

Wiring faults (especially in the doors) → window lift or central lock fails.

Control unit (ECU) errors → unstable engine operation, "Check Engine".

Problems with Uconnect multimedia → freezing, loss of Bluetooth connection.

⚙️ Engine and transmission

1.4 MultiAir

• MultiAir hydraulic unit wear → loss of power, uneven idle.
• possible oil leaks.

1.6 and 2.0 JTDm (diesel)

• Diesel particulate filter (DPF) clogging → switching to emergency mode.
• EGR valve wear.

TCT (robotized dual-clutch transmission)

• jerks when shifting.
• overheating and rapid wear of the clutch.

🚗 Chassis

Fast wear of the front suspension silent blocks → knocking, play.

Worn steering rack → knocking sounds when turning the steering wheel.

Shock absorbers and springs require replacement more often than average.

🛡️ Body and interior

Corrosion of thresholds and arches (especially on early versions, when used in regions with reagents).

Worn chrome elements (peeling off the coating).

Squeaks and creaks in the interior (panels, door trim).