Skip advert
Advertisement

Mercedes A170

Mercedes freshens up the A-Class and adds eco-friendly stop-start technology.

Find your Mercedes A-Class
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

There has always been a great deal of potential in the A-Class. It’s flexible, spacious and very well built – and it looks different to mainstream family models, too. The highlight of this latest round of changes to the range is the stop-start system, which brings about some useful fuel savings. But performance isn’t particularly impressive and the baby Mercedes is still wooden to drive, with an uncomfortable ride and only average handling. Plus, even in basic Classic trim, it’s quite an expensive choice, at nearly £16,000.

Advertisement - Article continues below

Don’t worry, your eyes aren’t deceiving you. This really is Mercedes’ new A-Class. With subtly tweaked headlamps, bumpers and a restyled front grille, it doesn’t look a lot different to the model it replaces – but there are revisions underneath the skin that are much more significant.

These include the new fuel-saving stop-start system, called Blue Effici­ency, which is available on the petrol A170 we drive. There’s also a fresh cabin and more safety kit. Do the changes finally put the A-Class on terms with the BMW 1-Series?

Well, the stop-start kit alone allows Mercedes to match its rival. Fitted to the four-cylinder petrol 1.7-litre, it operates smoothly, switching off the en-gine when you shift into neutral below 5mph while braking. As soon as the clutch is pressed or the middle pedal released, the engine frees up again.

Skip advert
Advertisement
Skip advert
Advertisement - Article continues below

Used - available now

A Class

2021 Mercedes

A Class

71,952 milesAutomaticPetrol1.3L

Cash £14,490
View A Class
A Class

2021 Mercedes

A Class

65,500 milesAutomaticDiesel1.5L

Cash £15,255
View A Class
A Class

2020 Mercedes

A Class

50,797 milesAutomaticPetrol1.3L

Cash £14,663
View A Class
A Class

2021 Mercedes

A Class

38,795 milesAutomaticPetrol1.3L

Cash £16,471
View A Class

This helps reduce fuel consumption from 42.8mpg to 46.3mpg, although CO2 output is unchanged at 157g/km. An ‘eco’ light on the dash tells you the system is active – it’s possible to turn off the stop-start function – plus there is a shift alert signalling the optimum point at which to change gear.

The engine is mated to a five-speed manual transmission, and offers reasonable performance in town. But on motorways, it becomes a little noisy.

As for the rest of the car, it’s business as usual. The suspension remains unchanged, the ride rather stiff, the steering is still imprecise and the seating position awkward, with not enough thigh support.

All-round visibility is great, though, and access to the high-mounted seats is easy. The dashboard is clean and functional, too. Other than revised fabrics, the interior is carried over, and it remains a quality affair.

Top-spec cars now have the option of a new ‘infotainment’ system, with hard disc sat-nav, Bluetooth and iPod connectivity.

Safety equipment is improved, too. The brake lights flash if you have to do an emergency stop to warn following vehicles, while a new hill-hold system prevents the car rolling back when pulling away on slopes. What’s more, thanks to its twin-height boot, simple folding rear seats and big load area, the A-Class is as practical as ever.

Do these changes go far enough? Well, the 1-Series is still a better car, but the entry Mercedes is now more frugal – and thus more appealing.

Skip advert
Advertisement

New & used car deals

Mercedes A Class

Mercedes A Class

RRP £31,850Used from £18,895
BMW 1 Series
Mercedes GLA

Mercedes GLA

RRP £34,850Used from £17,500
Mercedes C Class
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

Some Chinese car brands are doomed to disappear, warns Skoda boss
Skoda Kodiaq - front cornering

Some Chinese car brands are doomed to disappear, warns Skoda boss

Skoda’s sales and marketing boss warns “there will be a consolidation” of the number of Chinese car brands around
News
3 Feb 2026
New Kia EV1 electric city car on the way to rival the Renault Twingo
Kia EV1 - front (watermarked)

New Kia EV1 electric city car on the way to rival the Renault Twingo

Kia's design boss lifts the lid on plans for a Renault Twingo and Volkswagen ID. Lupo rival, and our exclusive images preview how the EV1 could look
News
2 Feb 2026
Meet Renault’s new SUV: a Dacia Duster but not as we know it…
Renault Duster - front

Meet Renault’s new SUV: a Dacia Duster but not as we know it…

Posher inside and out and with more headroom, welcome to the upside down world of the Indian Duster
News
26 Jan 2026