Skip advert
Advertisement

Used Buyer's Guide: Audi A3 Cabriolet

With a new car on the way, this classy convertible looks better than ever used

How much?

Diesel A3 Cabriolets outnumber their petrol equivalents by nearly two to one – £10,000 will buy pretty much any version, as long as you don’t mind something that’s done around 100,000 miles. For a car with 60,000 miles or fewer, you need to increase your budget to £11,500 – that brings mainly the 1.8 TFSI and 2.0 TDI within reach.

Advertisement - Article continues below

Only one in five A3 Cabriolets is an automatic; if you want one of these, you’ll typically pay another £600, with the cheapest automatics costing around £12,000.

Running costs

ModelInsurance GroupFuel economyCO2 emissionsAnnual road tax
1.2 TFSI1849mpg132g/km£125
1.61738mpg174g/km£200
1.8 TFSI26-2838mpg174g/km£200
2.0 TFSI30-3137mpg172g/km£200
1.6 TDI20-2165mpg114g/km£30
1.9 TDI19-2055mpg134g/km£125
2.0 TDI25-2653mpg139g/km£125

All A3 Cabriolets have variable servicing, so schedules vary from 9,000 miles or 12 months up to 20,000 miles or two years. To keep cars within its dealer network, Audi slashes maintenance costs significantly once a model reaches its third birthday. Up to this point, prices vary between £280 and £350, then they drop to £160-£310.

All engines need new cambelts every five years/75,000 miles; this is £439 on older cars, but up to £800 on those up to three years old. Every two years, the air-con needs recharging (£100) and the brake fluid replenishing (£59 for models over three years old; £82 up to that age).

Skip advert
Advertisement

New & used car deals

Toyota Yaris Cross
Renault Clio

Renault Clio

RRP £16,175Avg. savings £4,168 off RRP*Used from £7,490
Volkswagen Tiguan

Volkswagen Tiguan

RRP £38,050Avg. savings £3,940 off RRP*Used from £23,990
Kia Sportage

Kia Sportage

RRP £28,085Avg. savings £3,442 off RRP*Used from £13,200
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

New Volvo XC40 facelift: popular SUV gets Range Rover-esque makeover
Volvo XC40 - Ellis Hyde front

New Volvo XC40 facelift: popular SUV gets Range Rover-esque makeover

The pure-electric Volvo EX40 and EC40 coupe-SUV have also been updated again, now delivering up to 359 miles of range
News
10 Sep 2026
New Volkswagen ID. Polo 2026 review: a seriously impressive small EV
Volkswagen ID. Polo - front

New Volkswagen ID. Polo 2026 review: a seriously impressive small EV

The new all-electric Volkswagen ID. Polo is stylish, has plenty of space and is great to drive
Road tests
9 Sep 2026
Long-term test: BMW iX3 50 xDrive M Sport Pro
BMW iX3 50 xDrive - front charging

Long-term test: BMW iX3 50 xDrive M Sport Pro

Second report: Our Vice President of Content and Publishing does a lot of miles but has no home charger. Will an EV suit her?
Long-term tests
9 Sep 2026