Alfa Romeo 1.3 JTDm
Fiat's 1.3-litre Multijet diesel in the MiTo — 90 hp, extremely frugal (4–5 l/100 km), designed for city use. Torque is adequate for the light MiTo, but motorway driving is a stretch. Common engine across the Fiat group, parts cheap and available.
Alfa flair meets frugal box
90 diesel hp in the sporty MiTo — not a natural fit. Frugal yes, but this engine belongs in a Punto, not an Alfa.
Engine Weaknesses 6
1.3 Multijet with timing chain — chain stretches if oil changes are neglected. Hydraulic chain tensioner fails first. Chain snap causes engine damage.
Symptoms: Metallic rattling on cold start (1–2 min), persistent noise at 130,000+ km, camshaft timing error codes.
Diesel versions also use the M32 gearbox with its known bearing problem. Humming noise in 5th/6th gear and risk of total failure if repair is delayed.
Symptoms: Humming noise in 5th/6th gear, gear selection becomes stiffer, gear lever wanders under load.
The 2.0 MultiJet shares the known O-ring problem on the oil pump suction pipe with other Fiat/Alfa diesel engines of this generation. The rubber ring loses its sealing effect from 70,000–80,000 km.
Symptoms: Brief oil pressure warning on cold start, ticking immediately after start, disappears after warm-up
Common-rail injection is sensitive to fuel quality. From 70 vehicle reports (fiches-auto.fr): 8 documented cases of injector failure.
Symptoms: Hesitation on acceleration, rough running, knocking noise, increased consumption, lack of power.
EGR valve gets clogged by soot deposits especially during city driving. Short-trip use promotes heavy carbon build-up. Cleaning or replacement regularly required.
Symptoms: Power loss at part throttle, rough running at low rpm, black smoke, engine warning light.
Leaking or poorly atomising injectors cause incomplete combustion and excessive soot production, clogging the DPF prematurely. Cleaning the DPF without diagnosing the injectors is usually only a short-term fix.
Symptoms: Engine warning light DPF full, power drop, frequent DPF regeneration cycles, increased fuel consumption
Vehicle Weaknesses 14
Fault in the airbag propellant system: the second stage may fail to fire or not deploy in a crash. Affects vehicles from September 2010 to December 2015. Have a dealer check the vehicle.
Rear brake callipers seize from corrosion, especially on vehicles that are rarely braked hard. Brake pistons rust from salt ingress; brake discs rust up extremely quickly due to high iron content.
Front axle joints wear prematurely, especially on higher-powered variants. MOT inspectors frequently flag failed joints. Steering play and oil loss are also recurring MOT defects.
Air conditioning loses refrigerant or the compressor fails. The condenser is damaged by stone impacts. Refrigerant top-up is a common procedure on vehicles over 100,000 km. Repair is labour-intensive.
Moisture enters the cabin through leaking windscreen seals or blocked air conditioning drain hoses. Passenger footwell is particularly affected. Risk of mould if water ingress goes undetected.
The air conditioning compressor loses performance early or fails completely. The condenser is damaged by stone impacts and loses refrigerant. Repair is expensive, especially compressor replacement.
Water enters through a leaking windscreen seal or blocked air conditioning drain hoses into the passenger footwell. Moisture can damage control units under the carpet.
Strut top mounts, drop links and rear wheel bearings are known but inexpensive weaknesses on the MiTo. Front axle joints also show early wear. Parts are readily available — repairs are cost-effective.
Weld seams on the bonnet, tailgate and doors were poorly pre-treated — paint peels and rust sets in. Typical around the tailgate badge area. A cosmetic issue that requires extensive paint repair.
Tail lights take on moisture, causing bulb failures and contact corrosion. A known issue on older examples. Seal checks and optionally a desiccant pack as preventive measures.
Dashboard and interior trims develop pronounced creaking and rattling at higher mileage. Seat backrest adjustment fails occasionally. A typical long-term problem that reduces value.
Central locking, windows and small control units can fail through faulty relays, blown fuses or cable breaks in the tailgate hinge area. Earth points are a known weakness on older examples.
The front anti-roll bar drop links and axle joints wear prematurely. Regularly flagged at MOT inspections. Inexpensive repair but frequently recurring.
Central locking, electric windows and small control units fail through faulty relays or broken cables in the tailgate hinge area. Cable breaks occur from bending during opening.