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

RX L

2022 Lexus

RX L

16,710 milesAutomaticPetrol3.5L

Cash £40,390
View RX L
UX

2023 Lexus

UX

11,058 milesAutomaticPetrol2.0L

Cash £22,998
View UX
Combo Life

2021 Vauxhall

Combo Life

13,605 milesAutomaticPetrol1.2L

Cash £17,535
View Combo Life
4 Series

2020 BMW

4 Series

100,883 milesManualDiesel2.0L

Cash £8,995
View 4 Series

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

Omoda 5

Omoda 5

RRP £23,990Avg. savings £1,429 off RRP*Used from £19,899
Nissan Qashqai

Nissan Qashqai

RRP £27,415Avg. savings £6,054 off RRP*Used from £12,499
Volkswagen Tiguan

Volkswagen Tiguan

RRP £38,030Avg. savings £3,285 off RRP*Used from £25,726
Vauxhall Corsa

Vauxhall Corsa

RRP £19,690Avg. savings £5,737 off RRP*Used from £11,499
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

New Nissan Juke to get wild design as it goes all-electric
Nissan Juke - front (exclusive image)

New Nissan Juke to get wild design as it goes all-electric

The new Nissan Juke is set to arrive in the UK in 2026, and our exclusive images preview how it could look
News
24 Nov 2025
New Dacia C-Neo preps for its big family car fight in 2026
Dacia C-Neo - front cornering

New Dacia C-Neo preps for its big family car fight in 2026

Romanian firm looks ready to take on a new sector with all-new petrol-powered family car
News
24 Nov 2025
Tesla Model 3 vs Mercedes CLA: which EV is the elite executive car?
Mercedes CLA and Tesla Model 3 - front tracking

Tesla Model 3 vs Mercedes CLA: which EV is the elite executive car?

On paper, Mercedes’ CLA Mk2 looks set to deliver the goods in the electric company-car sector. Has the big-selling Tesla Model 3 finally met its match…
Car group tests
22 Nov 2025