Used Smart ForTwo

What to know before buying: Smart ForTwo

From 2 forum threads and 3 press tests · updated 12/10/2026

What the reviews say

• The Fortwo’s short body and manoeuvrability make urban driving and parking easy.[3][1][5]
• The short wheelbase produces a firm, unsettled ride over cobbles and bumps; drivers also report limited stability.[1][4][5]
• The automated manual shifts slowly and may jerk or hesitate; smooth progress can require careful accelerator use.[3][2][5]
• The cabin can be surprisingly roomy for two, but luggage space is limited and best suited to everyday shopping.[1][4][5]

Typical faults

• The automated-manual clutch or actuator can require costly repair; one owner discussion places a major overhaul at around 100,000 km.[3][5]

  100 000–100 000 km

• Reported electrical faults involve the central locking, window mechanisms, dashboard warnings and the 12V battery.[3]one source
• Higher-mileage cars may suffer overheating or coolant loss.[3]one source
• Worn engine mounts can amplify the three-cylinder engine’s vibration, especially at idle.[3]one source

  three-cylinder engines

• Recorded faults include turbo oil leakage and water entering the SAM electrical module.[3]one source

  turbo engines

• The 451 MHD belt system is listed by the source as a high-risk fault.[3]one source

  451 MHD

Which engine and version to take

• If economy is the priority, the diesel has the clearest support: two forum owners specifically praise its low consumption.[1]one source

What to avoid

• Choose a 451 MHD only after a thorough belt-system check, as the source identifies it as a high-risk component.[3]one source

What to check at the inspection

• During the test drive, try every gear in both modes and watch for excessive delay, jerking, or clutch and actuator faults.[3][2][5]
• Test the central locking, both windows and dashboard warnings, and assess the 12V battery’s condition and charge.[3]one source
• With the engine cold, check coolant level and look for leakage or evidence of previous overheating.[3]one source
• At idle, check for excessive vibration that may indicate worn mounts; on turbo engines, inspect for oil leakage.[3]one source
• Inspect the SAM module and its surroundings for moisture or past water ingress; on a 451 MHD, also examine the belt system.[3]one source

Verdict

Sources

1. [1]bmwslo.com — Smart fortwo - Stran 2 - Avtomobilizem · forum
2. [2]m.bug.hr — Smart fortwo kakva su vaša iskustva · forum
3. [3]kroniktamir.com — Smart Fortwo Kronik Sorunları · press
4. [4]garaz.autorevue.cz — Smart - totálně zbytečné "auto" · press
5. [5]garaz.autorevue.cz — Smart ForTwo - vaše zkušenosti · press

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