Front steering knuckle weakness on some cars
May have no obvious symptoms before failure, so recall history matters.
How to check
Run the VIN through the UK recall checker.
Estimated Repair Cost
£0
Explore common problems, estimated repair costs and practical checks for the 2016 Smart Forfour 1.0 Petrol Manual. Use this guide to help assess a used car, then unlock a personalised report for the exact vehicle you're considering.
May have no obvious symptoms before failure, so recall history matters.
Run the VIN through the UK recall checker.
£0
Notchy selection, baulking into gear, or occasional refusal to engage a gear when stationary.
Drive until warm, then work through all gears in slow traffic and during a few normal stops.
£450
Coolant loss, sweet smell, overheating warning, or heater performance changing unexpectedly.
Let the engine warm fully during the drive and then sit briefly at idle after stopping.
£450

It can be, but only if the individual car backs it up. For the 2016 Smart Forfour 1.0 Petrol Manual, treat model-level patterns as viewing priorities and let condition, history and inspection evidence decide.
The problem cards above list the model-level checks for this guide. Read them as priorities for inspection and paperwork review, not proof that every example will have those faults.
Look for evidence, not just assurances: MOT advisories, service history, repair invoices, warning lights, fluid leaks, tyre and brake condition, and how the car behaves on a proper test drive. And of course, look at your personalised Should I Buy This Car? report, outlining a full list of common issues in detail, a personalised road test, a plain-English explanation and a MotorIQ score.
The guide above gives you the model-level pattern. A personalised MotorIQ report checks the registration-specific record and turns it into an ownership view before you commit.
Or enter the vehicle manually