Skip advert
Advertisement

SEAT Leon ST estate - MPG, running costs & CO2 (2014-2020)

The SEAT Leon ST should prove cheaper to run than the equivalent VW Golf over a three-year period

Carbuyer Rating

4.3 out of 5

Owners Rating
Be the first to review
MPG, running costs & CO2 Rating

4.5 out of 5

Because it shares parts with models from across the Volkswagen Group range, the SEAT Leon gives buyers a wide range of very economical range of engines to choose from.

SEAT Leon ST MPG & CO2

Cheapest to run (and our pick of the engine range) is the 113bhp 1.6-litre diesel. In the automatic Leon it sips diesel at just 57.6mpg with 109g/km CO2 emissions that mean a Benefit-in-Kind (BiK) company-car tax rating of 29%. There’s also a more powerful 2.0-litre diesel engine producing 148bhp, returning up to 55.4mpg.

Advertisement - Article continues below

Like the diesel models, all petrol-engined Leon STs come with a fuel-saving stop-start system, which pauses the engine when the car is at a standstill before restarting it seamlessly when you engage the clutch. In combination with hi-tech turbocharging technology, petrol Leon STs are economical enough to appeal to private buyers who cover fewer than 12,000 miles a year.

The small-capacity 1.0-litre, 113bhp petrol engine is modern, zesty and can return fuel economy of up to 58.9mpg – many will find it as cheap to run as the diesel and a CO2 emissions figure of 102g/km means a 22% BiK rating.

If you're after a punchier Leon ST, there's a 1.5-litre engine available with 128 or 148bhp, and a 2.0-litre with 187bhp. Any of these are powerful enough to entertain, but it’s worth noting that the smooth and punchy 2.0-litre engine will struggle to manage 40mpg – and will use even more fuel if you drive it hard.

All SEAT Leon STs are liable for road tax of £140 a year.

Insurance group

The Leon ST with the cheapest insurance premiums is the 113bhp 1.0-litre petrol model, which sits in group 12. The 2.0-litre diesel has the highest premiums in the standard range, in insurance group 24.

Servicing

SEAT offers fixed-price servicing plans for two years or 20,000 miles for around £20 per month, or an upfront payment of just over £400.

Warranty

The Leon’s warranty is pretty standard fare – SEAT will cover you for three years or 60,000 miles, whichever comes sooner. Paintwork is covered for three years and there’s a 12-year guarantee against rust. However, SEAT differs from the norm in that it offers a full two years’ breakdown cover as standard. You can pay an extra £250 to upgrade your cover to four years/75,000 miles, or an extra £450 to cover the car for five years/90,000 miles.

Skip advert
Advertisement

Richard is a former editor of Carbuyer, as well as sister site DrivingElectric.com, and he's now Deputy Editor at Auto Express. Having spent a decade working in the automotive industry, he understands exactly what makes new car buyers tick.

Skip advert
Advertisement

Most Popular

Best new car deals 2024: this week’s best PCP finance offers
Carbuyer best new car deals hero
Deals
21 Jun 2024

Best new car deals 2024: this week’s best PCP finance offers

New Audi e-tron GT now has 912bhp in RS Performance guise
Audi RS e-tron GT front quarter
News
17 Jun 2024

New Audi e-tron GT now has 912bhp in RS Performance guise

Engine management light: what to do if it comes on
Engine warning light
Tips and advice
12 Jun 2024

Engine management light: what to do if it comes on

Tips & advice

View All
Car dashboard warning lights: the complete guide
Car dashboard symbols and meanings
Tips and advice
26 Mar 2024

Car dashboard warning lights: the complete guide

Electric car charging stations: a complete guide
Public EV charge point
Tips and advice
11 Jan 2023

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
17 May 2022

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
21 Mar 2024

Average speed cameras: how do they work?

Best cars

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

Top 10 best car interiors

Top 10 best electric cars 2024
Best electric cars
Best cars
16 May 2024

Top 10 best electric cars 2024

Top 10 best cheap-to-run cars 2024
The best cheap-to-run cars 2023
Best cars
2 Jan 2024

Top 10 best cheap-to-run cars 2024

The UK's top 10 fastest hot hatchbacks 2024
Fastest hot hatchbacks hero
Best cars
2 Jan 2024

The UK's top 10 fastest hot hatchbacks 2024