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 £36,215Used from £20,500
Volkswagen Polo

Volkswagen Polo

RRP £15,255Avg. savings £1,944 off RRP*Used from £7,299
Volkswagen Tiguan

Volkswagen Tiguan

RRP £38,030Avg. savings £3,552 off RRP*Used from £14,799
Volkswagen Golf

Volkswagen Golf

RRP £25,235Avg. savings £2,713 off RRP*Used from £11,562
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

Inside Ford’s big comeback plan: Fiesta, small SUV, hybrid and VW relationship all explained
Ford Bronco Sport 2025

Inside Ford’s big comeback plan: Fiesta, small SUV, hybrid and VW relationship all explained

Exclusive analysis reveals Ford’s comeback plan: new Fiesta EV, hybrid crossover and working with Renault and VW
Features
11 Dec 2025
Car Deal of the Day: Jaecoo 5 offers Range Rover looks for just £214 per month
Jaecoo 5 - front cornering

Car Deal of the Day: Jaecoo 5 offers Range Rover looks for just £214 per month

It’s easy to see why Jaecoo has become a popular brand with deals like this. The Jaecoo 5 is our Deal of the Day for December 10.
News
10 Dec 2025
EU 2035 petrol and diesel car ban to be scrapped – will the UK follow?
Electric car charging mega test - charging overhead

EU 2035 petrol and diesel car ban to be scrapped – will the UK follow?

The head of the biggest EU party has told the press that from 2035, car manufacturers must reduce CO2 emissions by 90 per cent
News
12 Dec 2025