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

30,346 milesAutomaticDiesel2.0L

Cash £17,125
View A Class
A Class

2022 Mercedes

A Class

14,021 milesManualPetrol1.3L

Cash £16,035
View A Class
A Class

2021 Mercedes

A Class

52,159 milesAutomaticDiesel1.5L

Cash £14,678
View A Class
A Class

2021 Mercedes

A Class

72,249 milesAutomaticDiesel2.0L

Cash £17,989
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 £31,870Used from £18,473
BMW 1 Series

BMW 1 Series

RRP £39,025Used from £10,895
Mercedes GLA

Mercedes GLA

RRP £33,370Used from £16,495
Audi A3

Audi A3

RRP £26,310Avg. savings £2,713 off RRP*Used from £9,650
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

New Cupra Raval 2026 review: a true pocket rocket for the EV era
Cupra Raval - front tracking

New Cupra Raval 2026 review: a true pocket rocket for the EV era

The hot little Raval marks the beginning of a very promising new era
Road tests
8 May 2026
New Jaguar GT: Groundbreaking 1,000bhp, four-door EV to be named in days
Jaguar GT - front (exclusive image)

New Jaguar GT: Groundbreaking 1,000bhp, four-door EV to be named in days

Jaguar’s electric GT has been called many things during development, but it’s rumoured its official nameplate is set to be confirmed next week, alongs…
News
7 May 2026
Renault 5 gets one-pedal driving for its first birthday
Renault 5 E-Tech Iconic Five - front action

Renault 5 gets one-pedal driving for its first birthday

The funky French EV was the UK’s most popular electric car in April and has upped its game with one-pedal driving
News
7 May 2026