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 £12,497
Omoda 5

Omoda 5

RRP £23,990Avg. savings £1,535 off RRP*
Nissan Qashqai

Nissan Qashqai

RRP £27,415Avg. savings £6,037 off RRP*Used from £9,970
Dacia Spring

Dacia Spring

RRP £14,995Avg. savings £4,588 off RRP*
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

All-new Dacia Striker is a cut-price Golf rival with an estate shape
Dacia C-Neo - exclusive image front

All-new Dacia Striker is a cut-price Golf rival with an estate shape

The Dacia Striker, formerly known as C-Neo, will be revealed in full on March 10th with a more conventional hatch version to follow
News
5 Mar 2026
Why EVs are so expensive to insure, and how to make them cheaper
Ford Puma Gen-E - front action

Why EVs are so expensive to insure, and how to make them cheaper

Research shows that EVs are usually 15 to 25 per cent more expensive to insure than petrol cars – the experts at Thatcham say they have the solution
News
3 Mar 2026
Most efficient electric cars 2026
Most efficient electric cars - header image

Most efficient electric cars 2026

These are the top electric cars if efficiency rather than range is key to you...
Best cars & vans
1 Mar 2026