Skip advert
Advertisement

Mercedes B-Class (2011-2018) review - Reliability and Safety

Mercedes’ quality has really picked up since the firm’s early-2000s slump, but the model didn't do well in recent Driver Power scores

Find your Mercedes B-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

Mercedes has massively improved its quality and reliability since the dreadful days of the early 2000s, when models like the E-Class and C-Class threatened to undo a quality reputation stretching back more than a century. Thankfully, things have picked up a lot since then, but the B-Class hasn’t done well in our Driver Power survey, finishing in 118th place – into the bottom half of the table. Perhaps lingering issues with Mercedes’ dealer network is holding it back?

Advertisement - Article continues below

At least on the safety front, you’re definitely OK. Merc’s reputation for safety is really only matched by Volvo, and the B-Class comes with a battery of life-saving tech. As well as lots of airbags, stability control and ABS, all B-Classes come with Attention Assist (which warns you if you’re getting drowsy) and Collision Prevention Assist Plus which warns you if you’re getting too close to the car in front, and which can activate emergency braking if you don’t take action to avoid a collision. There are also brake lights that flash under heavy braking and an emergency call system. EuroNCAP gave it a full five-stars for crash safety with a whopping 97 per cent score for adult occupant protection.

You can spec safety up further with items like active cruise control, blind spot monitor, lane-keeping assist and Pre-Safe, which pressurises the brakes and tightens the seatbelts if it detects an unavoidable collision. 

Warranty

You get a three-year, unlimited mileage warranty, with a 30-year anti-perforation guarantee with the B-Class. There’s no option to increase the length of the warranty, but you do get complimentary roadside rescue, which renews every year as long as you keep the car serviced at a Mercedes main dealer.

Servicing

Mercedes doesn’t issue a set mileage limit for services – that’s taken care of by the on-board diagnostics, but it does recommend at least one visit back to the dealer every year. There’s a fixed-price service plan available, which costs from around £24 a month on a subscription basis, which covers all your normal regular serving costs.

Skip advert
Advertisement

Which Is Best

Cheapest

  • Name
    B200 Sport Executive 5dr Auto
  • Gearbox type
    Semi-auto
  • RRP
    £35,945
Select car

Most Economical

  • Name
    B200d Sport Executive 5dr Auto
  • Gearbox type
    Semi-auto
  • RRP
    £37,045
Select car

Fastest

  • Name
    B200 Sport Executive 5dr Auto
  • Gearbox type
    Semi-auto
  • RRP
    £35,945
Select car

New & used car deals

Mercedes B Class

Mercedes B Class

RRP £22,345Used from £18,803
Kia Sportage

Kia Sportage

RRP £28,085Avg. savings £3,188 off RRP*Used from £12,990
Nissan Juke

Nissan Juke

RRP £19,805Avg. savings £5,180 off RRP*Used from £7,595
Toyota Yaris Cross
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

Can you park over a dropped kerb? Blocked driveways, rights and the law explained
Dropped kerb - header image

Can you park over a dropped kerb? Blocked driveways, rights and the law explained

A dropped kerb allows vehicles to legally cross the pavement between the road and a private driveway or parking space, here’s everything you need to k…
Tips & advice
22 Jun 2026
Car Deal of the Day: Family-favourite Nissan X-Trail for a tiny £187 a month
Nissan X-Trail - front corner left

Car Deal of the Day: Family-favourite Nissan X-Trail for a tiny £187 a month

Practical and easy to drive, the Nissan X-Trail is popular with families. It’s our Deal of the Day for 25 June.
News
25 Jun 2026
Hidden cost of EVs: Electric car repairs cost 20% more than on petrol and diesel cars
Electric car servicing car on ramp

Hidden cost of EVs: Electric car repairs cost 20% more than on petrol and diesel cars

The average cost to fix an EV following a crash is £6,363, according to AX – hundreds more than the average repair cost for an ICE car
News
25 Jun 2026