Skip advert
Advertisement

Smart ForFour

Down tools, the Smart is back on the road! Our ForFour has endured a turbulent couple of months... and only now is it up to full strength

Find your Smart ForFour
Compare deals from trusted partners on this car and previous models.
Or are you looking to sell your car?
Value my car
Fast, no-nonsense car selling
Value my car

Down tools, the Smart is back on the road! Our ForFour has endured a turbulent couple of months... and only now is it up to full strength again. As we first reported in May, the ForFour had an undiagnosed fault. At 30mph and above, a low-pitched humming sound was audible over the usual engine, tyre and wind noise.

Advertisement - Article continues below

We took the hatch into Smart's aftersales centre in Brentford, west London, where technicians spent the day trying - and failing - to find the problem. Even though they claimed the car had a clean bill of health, the noise was still heard by several different drivers and passengers. The only answer was to get a second opinion from another workshop.

So a few weeks later, when visiting family in the Midlands, I called into the firm's Wolverhampton site, which shares facilities with a Mercedes dealer. Initial impressions were good, and a polite technician drove our Smart, with me as a passenger.

Within minutes, he heard the mystery sound, and said he recognised it. The diagnosis was confirmed on a ramp in the workshop, when he delivered the alarming verdict that KP54 VEB needed a new gearbox! The good news was that a fresh transmission was fitted within three days - just in time for me to return the following weekend to pick up the car.

Skip advert
Advertisement
Skip advert
Advertisement - Article continues below

Used - available now

Tiguan

2020 Volkswagen

Tiguan

70,710 milesAutomaticDiesel2.0L

Cash £15,976
View Tiguan
Taycan

2024 Porsche

Taycan

27,000 milesAutomaticElectric

Cash £44,950
View Taycan
Range Rover Sport

2020 Land Rover

Range Rover Sport

77,500 milesAutomaticDiesel3.0L

Cash £27,995
View Range Rover Sport
Picanto

2020 Kia

Picanto

16,478 milesManualPetrol1.2L

Cash £11,150
View Picanto

But even with a replacement box, the ForFour was as noisy as ever. Only after further investigation did the mechanics discover the fault was a rear wheel bearing - which was what we'd suggested two months earlier! One needless new gearbox and several man hours later, we had a quiet Smart once again, thankfully paid for under warranty. The garage even stumped up for my train fare from London to collect the five-door.

So has the car made its last trip to the garage for now? Unfortunately not. During its time in Wolverhampton, the on-board computer decided a service was due earlier than expected.But why didn't the dealer take the initiative and do the check-up then? We now have to wait for a free slot at Brentford.

All this has taken the shine off Smart ownership. The ForFour is still a stylish and economical supermini, yet niggles include the lack of a parcel shelf and a gearbox which is a pain in traffic. Once it's serviced, maybe we'll learn to love the car again - but for now it's definitely in the doghouse.

Second Opinion

While I couldn't help being drawn to the ForFour's cute looks, the gearbox soon became frustrating. Its laboured, jerky changes made it hard work in town, which is unacceptable in a small hatchback. The interior will appeal to the style conscious, but I think the dash materials already look a little dated. It's really frugal, though.
Marc Mustard, staff writer

Skip advert
Advertisement

New & used car deals

Dacia Spring

Dacia Spring

RRP £14,995Avg. savings £3,158 off RRP*
Volkswagen Polo

Volkswagen Polo

RRP £15,255Avg. savings £1,912 off RRP*Used from £8,450
Omoda 5

Omoda 5

RRP £23,990Avg. savings £1,429 off RRP*
Audi A3

Audi A3

RRP £26,295Avg. savings £2,713 off RRP*Used from £8,995
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

400bhp family SUVs have become common in the EV era, but they're completely pointless
Opinion - Volvo XC40 Recharge

400bhp family SUVs have become common in the EV era, but they're completely pointless

Editor Paul Barker thinks new car firms don't have heritage behind them, so power figures and straight line speed are an easy way to grab headlines
Opinion
15 Oct 2025
New Volkswagen T-Roc ride review: small SUV shows plenty of promise
Volkswagen T-Roc prototype - front

New Volkswagen T-Roc ride review: small SUV shows plenty of promise

We ride shotgun in the latest Volkswagen T-Roc, giving us a taste of what’s shaping up to be next year’s hottest small SUV
Road tests
16 Oct 2025
New Toyota C-HR+ 2025 review: electric SUV struggles for space
Toyota C-HR+ - front

New Toyota C-HR+ 2025 review: electric SUV struggles for space

The new Toyota CH-R+ has plenty of plus points, but ultimately fails to stand out from the crowded family EV class
Road tests
15 Oct 2025