In-depth reviews

BMW Z4 roadster - Reliability & safety

Five-star safety rating but BMW Z4 owner satisfaction remains to be proven

Carbuyer Rating

3.9 out of 5

BMW is one of the respected German 'Big Three' premium brands. All three have a desirable, high-quality reputation, yet neither BMW or its Audi or Mercedes rivals are exactly top-ranking where it comes to owner satisfaction. The Z4 scored the full five stars when it was tested by Euro NCAP, thanks in part to a healthy list of crash-avoidance technology available as standard or at extra cost.

BMW Z4 reliability

BMW is currently 27th out of 30 manufacturers in our annual Driver Power owner satisfaction survey – behind Audi in 21st and just ahead of Mercedes in 28th.

It's difficult to tell whether BMW's alliance with Toyota for the Z4's development will have any effect on its reliability – the Japanese brand is well thought-of for the dependability of its cars, and only 9.6% of drivers reported a fault in the first year of ownership, compared to 20.4% for BMW.

Safety

The BMW Z4 achieved a five-star safety rating from Euro NCAP, including an impressive 97% score in the adult occupant category.

The Z4 has all the safety equipment you'd expect of a new car these days, from mandatory kit such as anti-lock brakes (ABS), stability control and tyre pressure monitoring, through to today's must-haves such as autonomous emergency braking. However, it's on the options list that you'll find the most impressive technology, with driver-assist systems like adaptive cruise control, lane keeping assist and reversing assistance only available at extra cost.

The same is true of the clever adaptive LED headlamps, whose main beam will adjust in shape to avoid dazzling oncoming traffic at speeds of 44mph and above.

Recommended

Top 10 best convertibles 2021
2021 MINI Convertible driving with roof down
Best cars
8 Sep 2021

Top 10 best convertibles 2021

BMW Z4 roadster review
BMW Z4 Roadster
BMW Z4
6 Apr 2021

BMW Z4 roadster review

Most Popular

New 2022 Toyota RAV4 Adventure revealed
Toyota RAV4 Adventure
Toyota RAV4
14 Sep 2021

New 2022 Toyota RAV4 Adventure revealed

New Volkswagen Passat set to launch in 2023
2023 Volkswagen Passat
Volkswagen Passat
9 Sep 2021

New Volkswagen Passat set to launch in 2023

Top 10 best small estates 2021
Skoda Octavia Estate
Skoda Octavia Estate
22 Sep 2021

Top 10 best small estates 2021

Tips & advice

View All
Car dashboard warning lights: the complete guide
Car dashboard symbols and meanings
Tips and advice
10 Aug 2021

Car dashboard warning lights: the complete guide

Electric car charging stations: a complete guide
Electric car charging station
Tips and advice
3 Jun 2021

Electric car charging stations: a complete guide

PCP vs HP – which type of car finance is right for you?
PCP vs HP
Tips and advice
15 Jun 2021

PCP vs HP – which type of car finance is right for you?

Average speed cameras: how do they work?
Average speed cameras: how do they work?
Tips and advice
23 Jul 2021

Average speed cameras: how do they work?

Best cars

View All
Top 10 best car interiors 2021
Peugeot 208 hatchback
Best cars
25 Jun 2021

Top 10 best car interiors 2021

Top 10 best electric cars 2021
Volkswagen ID.3
Best cars
12 Aug 2021

Top 10 best electric cars 2021

Top 10 best cheap-to-run cars 2021
Toyota Prius front 3/4 cornering
Best cars
10 Jun 2021

Top 10 best cheap-to-run cars 2021

The UK's top 10 fastest hot hatchbacks
Mercedes AMG A45 - rear
Hot hatches
25 Jun 2021

The UK's top 10 fastest hot hatchbacks