Skip advert
Advertisement

BMW 520d Touring review

Cleaner, more powerful diesel helps BMW 520d Touring take fight to Audi rival

Find your BMW 5 Series
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

For private and fleet buyers alike, the new BMW 520d Touring is a logical and desirable choice. It’s the most popular 5 Series model worldwide and it’s plain to see why, with strong performance, effortless refinement and striking economy. However, the Touring faces a stern test in the Audi A6 Avant. For every punch the BMW delivers, the Audi counters with a fractionally more polished blow – and for almost £1,500 less.

Advertisement - Article continues below

For years, the BMW 520d was all-conquering, but with Audi’s A6 recently getting the efficient Ultra treatment, the 5 Series now faces convincing opposition. So, BMW has hit back with a new engine for its executive saloon, hoping to be top dog once again.

The new 188bhp 2.0-litre diesel debuted in the updated X3, and gives the 520d a 10 per cent improvement in efficiency and an extra 7bhp and 20Nm of torque over the previous 2.0-litre. Improved cooling and less friction have allowed BMW to eke out the extra grunt, bringing the 5 Series in line with the Audi in the power stakes.

The 520d is fractionally better on fuel, returning 62.8mpg to the A6’s 61.4mpg – although this provides mere bragging rights. CO2 emissions also fall in favour of the BMW, with 118g/km versus 119g/km – yet both cars still reside within the same tax band, so there’s no real benefit for company buyers.

Skip advert
Advertisement
Skip advert
Advertisement - Article continues below

Used - available now

5 Series

2020 BMW

5 Series

76,233 milesAutomaticPetrol2.0L

Cash £14,118
View 5 Series
5 Series

2023 BMW

5 Series

48,785 milesAutomaticDiesel3.0L

Cash £25,969
View 5 Series
5 Series

2019 BMW

5 Series

38,860 milesAutomaticDiesel2.0L

Cash £18,295
View 5 Series
5 Series

2023 BMW

5 Series

48,240 milesAutomaticPetrol2.0L

Cash £24,195
View 5 Series

Power delivery is smooth, but it’s still a quick car, with 0-62mph taking 8.0 seconds – five-tenths faster than the A6.

Once up to speed, the engine is well isolated and remarkably hushed for a four-cylinder motor. But full-throttle acceleration above 3,500rpm does make it sound a little coarse, where the Audi remains smooth. Still, most of the oomph sits between 2,000 and 3,000rpm, so you rarely have to venture above that to access the reserves of power.

The eight-speed ZF auto fitted to our test car is a £1,685 option. Slick and precise, it executes changes with little fuss, but the gearbox does have a tendency to upshift early at times, causing the engine to struggle a little.

Selecting Sport on the Variable Damper Control (£985) sharpens changes and gives a crisper throttle response. It also bathes the digital instrument cluster in an attractive red.

What hasn’t changed is the BMW’s poise and precision behind the wheel. The handling is delicately balanced, while body control is neat for a car of this size. The cabin is generously equipped with SE-trimmed models boasting dual-zone air-conditioning, Bluetooth, DAB radio, leather upholstery, sat-nav and auto lights and wipers as standard.

As ever, there’s acres of space inside, too, but the 560-litre boot falls short of what’s on offer in the Audi.

The margins between the 5 Series and the A6 are slim. But spec-for-spec, the BMW demands a £1,460 premium, leaning us towards the Audi.

Skip advert
Advertisement

New & used car deals

BMW 5 Series

BMW 5 Series

RRP £53,110Avg. savings £10,582 off RRP*Used from £36,250
Audi A6

Audi A6

RRP £52,110Avg. savings £5,946 off RRP*Used from £13,994
BMW 3 Series

BMW 3 Series

RRP £35,060Avg. savings £8,993 off RRP*Used from £10,795
Mercedes C Class
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

New BMW iX3 gets cheaper with ‘40’ trim added, and it’ll still go 395 miles
BMW iX3 40 - front tracking

New BMW iX3 gets cheaper with ‘40’ trim added, and it’ll still go 395 miles

The new entry-level iX3 has been revealed, and it’ll still do 395 miles of range
News
31 Mar 2026
New Renault Twingo 2026 review: a brilliant electric city car
Jordan Katsianis with the Renault Twingo

New Renault Twingo 2026 review: a brilliant electric city car

The new Renault Twingo EV is clever, good-looking and a delight to drive
Road tests
31 Mar 2026
New Jaguar GT prototype review: big promise, but not the finished article… yet
Richard Ingram with the Jaguar GT prototype

New Jaguar GT prototype review: big promise, but not the finished article… yet

We hit the tarmac to try out the new Jaguar GT and although the early signs are good, there's still some fine tuning to be done
Road tests
31 Mar 2026