Alfa Romeo Giulietta: common faults & what to check

Which Alfa Romeo Giulietta are you looking at?

2 generation variants documented. Pick the shape you recognise: the faults, the servicing and the timeline below all narrow to it. Free, no account needed.

Petrol

1 variant documented

2011–20209402011–20209401.4 turbo petrolPetrolDocumented issues9 knownSee faults & what to checkPhoto: Vauxford via Wikimedia Commons, CC BY-SA 4.0.

Fuel not stated

1 variant documented

2011–20209402011–20209401.75 turbo (QV)Fuel not statedDocumented issues6 knownSee faults & what to checkPhoto: Vauxford via Wikimedia Commons, CC BY-SA 4.0.

Now narrow it to the engine

A 1.8 and a 2.4 of the same car do not fail the same way, so the faults below narrow to the engine as well as the year. Free, no account needed.

Start your free check on this Alfa Romeo Giulietta

No plate needed. You get the risk score, the buyer's checklist and the guided inspection for the exact car you picked above — not the whole nameplate.

The checks worth doing on a Alfa Romeo Giulietta before you hand over any money. Every documented fault is listed below, each with its own page.

• Serious issue

  Test drive in heavy-traffic conditions: repeated slow take-offs, a slow uphill reverse, and crawling in first gear.

  See why

  TCT dry dual-clutch judder, overheating and actuator/pump failure

  The 6-speed Alfa TCT is a dry dual-clutch gearbox and it is the Giulietta's weakest point. The dry clutches overheat in stop-start traffic and during slow reversing or hill creeping, wearing prematurely and eventually burning out one clutch pack. The hydraulic power unit, clutch position sensors and shift actuators also fail, throwing 'gearbox unavailable' warnings and leaving the car in limp mode or refusing to move. A clutch pack or mechatronic repair at an independent gearbox specialist is a four-figure job; a full replacement gearbox far more. Manual cars avoid the issue entirely.

  What you would notice

  • Shudder or judder pulling away from rest
  • Jerky low-speed creeping in traffic
  • 'Gearbox unavailable' or transmission warning messages
  • Burning smell after slow manoeuvring or reversing uphill
  • Hesitation or flaring between gear changes

  Typically $2,500–$6,500 to put right.

• Serious issue

  Check oil level on dipstick and note colour and consistency.

  See why

  1.4 MultiAir Oil Pump Wear and Oil Starvation

  The 1.4 MultiAir engine suffers from excessive oil consumption caused by degraded piston oil control rings that allow oil to be burned through the combustion chamber. This leads to low oil levels going undetected between services, causing oil pump cavitation and consequential bearing wear. The MultiAir system's electrohydraulic actuators also rely on a pressurised oil supply, so low oil pressure accelerates solenoid and actuator degradation throughout the valvetrain. Engines operated with consistently low oil are prone to crankshaft bearing failure and turbocharger centre bearing seizure.

  What you would notice

  • Oil consumption exceeding 1 litre per 3000 km
  • Low oil pressure warning light illuminating
  • Blue smoke from exhaust on startup or during overrun
  • Oil level dropping rapidly between service intervals
  • Noisy valvetrain at idle indicating low oil pressure

  Typically $800–$3,500 to put right.

• Serious issue

  Note any hot-start complaints from the owner.

  See why

  1.75 TBi High-Pressure Fuel Pump Failure

  Early production 1.75 TBi Giuliettas suffered documented high-pressure fuel pump (HPFP) failures, causing hard starting, hesitation under load, and in some cases complete loss of fuelling. The HPFP in this engine is driven off the camshaft lobe and sensitive to oil contamination and pressure loss. Alfa issued a field service action for some markets. HPFP failure can also introduce metal debris into the fuel system, requiring injector cleaning or replacement as secondary damage.

  What you would notice

  • Hard starting, particularly when hot
  • Hesitation or stumbling under hard acceleration
  • Engine warning light with fuel pressure fault codes
  • Long cranking time before the engine fires

  Typically $2,000–$3,800 to put right.

• Costly issue

  Test drive in slow car-park traffic with multiple pull-aways from rest.

  See why

  TCT Dual-Clutch Transmission Low-Speed Shudder and Clutch Wear

  The optional TCT (Twin Clutch Transmission), an Aisin-sourced 6-speed dry dual-clutch unit, is notorious for jerky and shuddering behaviour at low speeds and during parking manoeuvres. The dry-clutch design wears prematurely in urban traffic and the transmission control software struggles with smooth engagement below 20 km/h. Alfa Romeo issued a software service campaign in multiple markets to update TCT control logic and replace clutch actuator components. On high-mileage examples both clutch packs require full replacement — a significant cost that materially affects resale pricing.

  What you would notice

  • Shudder and lurch during low-speed manoeuvring and parking
  • Hesitation pulling away from rest
  • Clunking or jolt when engaging Drive from Park or Reverse
  • Gearshift hunting or refusal to engage below 20 km/h

  Typically $1,500–$3,500 to put right.

• Costly issue

  Rev the cold engine and observe the exhaust for black smoke.

  See why

  2.0 JTDm EGR Valve Carbon Buildup and Sticking

  The 2.0 JTDm diesel's exhaust gas recirculation valve accumulates heavy carbon deposits in urban-cycle use, typically requiring attention every 80,000–120,000km and sooner on city-only vehicles. A stuck-open EGR allows excessive hot exhaust gases into the intake manifold, causing rough idle, black smoke, and reduced low-RPM power. A stuck-closed valve triggers fault codes and reduces fuel economy. The problem is compounded by the diesel's inherently high soot output and is one of the most frequently cited faults on JTDm Giuliettas in Australian owner reviews.

  What you would notice

  • Rough idle and hunting at low revs
  • Black smoke from exhaust under acceleration
  • Loss of power especially below 2000 RPM
  • Check engine light with EGR position sensor or flow fault codes

  Typically $450–$1,100 to put right.

• Costly issue

  Cold-start the engine yourself and listen for rough running or excessive top-end noise in the first minute.

  See why

  MultiAir actuator ('brick') failure (1.4 TB MultiAir)

  The 1.4 turbo petrol uses Fiat's MultiAir electro-hydraulic intake valve unit (the 'brick') instead of a conventional intake cam. The unit is very sensitive to oil quality and level - overfilling, wrong-spec oil or stretched service intervals kill it. When it fails the engine runs rough, misfires and loses power, and the fix is usually a complete replacement unit. Earlier MultiAir engines are more prone, but neglected later cars fail too, so the service history matters more than the year.

  What you would notice

  • Rough idle and misfires, especially when cold
  • Loss of power / limp mode
  • Engine warning light with intake-valve or MultiAir fault codes
  • Ticking from the top of the engine louder than normal

  Typically $1,500–$3,500 to put right.

Alfa Romeo Giulietta service schedule

What falls due, and at what distance, for each generation of the Alfa Romeo Giulietta. These are the model’s intervals — the car’s own service book is the only thing that can tell you what has actually been done to it.

What these repairs cost on other cars

Some of the Alfa Romeo Giulietta’s documented faults are repairs other models share. Each page lists the documented NZ cost for every model it affects.

• DSG and Dual-Clutch Gearbox Repair Cost
• DPF Repair and Replacement Cost
• Turbo Repair and Replacement Cost
• EGR Valve and Cooler Repair Cost

Other Alfa Romeo models