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

70,786 milesAutomaticDiesel2.0L

Cash £17,584
View 5 Series
5 Series

2020 BMW

5 Series

59,607 milesAutomaticPetrol2.0L

Cash £15,141
View 5 Series
5 Series

2023 BMW

5 Series

20,196 milesAutomaticDiesel2.0L

Cash £27,446
View 5 Series
5 Series

2020 BMW

5 Series

50,481 milesAutomaticPetrol2.0L

Cash £16,378
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 £53,090Avg. savings £11,807 off RRP*Used from £16,195
Audi A6

Audi A6

RRP £52,010Avg. savings £6,069 off RRP*Used from £15,950
BMW 3 Series

BMW 3 Series

RRP £31,915Avg. savings £7,720 off RRP*Used from £12,795
Hyundai Tucson

Hyundai Tucson

RRP £29,820Avg. savings £6,189 off RRP*Used from £12,195
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

Meet Renault’s new SUV: a Dacia Duster but not as we know it…
Renault Duster - front

Meet Renault’s new SUV: a Dacia Duster but not as we know it…

Posher inside and out and with more headroom, welcome to the upside down world of the Indian Duster
News
26 Jan 2026
Used Volvo C40 (Mk1, 2021-date) buyer’s guide: a second-hand bargain that's cheap for a reason
Used Volvo C40 - front

Used Volvo C40 (Mk1, 2021-date) buyer’s guide: a second-hand bargain that's cheap for a reason

A full used buyer’s guide on the Volvo C40 that’s been on sale in the UK since 2021
Used car tests
25 Jan 2026
BYD’s new car blitz is just getting started: Dolphin G, Sealion 8, Shark 6 due soon
BYD Sealion 8

BYD’s new car blitz is just getting started: Dolphin G, Sealion 8, Shark 6 due soon

Thought BYD was done? Brand’s range to “cover 85 per cent” of the market by the end of 2026
News
26 Jan 2026