Review: Audi A5 Cabriolet (2009 – 2017)


Good looking convertible that effectively replaced the popular A4 Cabriolet. High quality and stylish cabin.

Number of faults and problems with early production. 2.0 TSI can have high oil consumption. Significant problem of leaking roofs swamping electrics, including ECUs.

Audi A5 Cabriolet (2009 – 2017): At A Glance

In 2009 Audi extended its A5 range to include a Cabriolet and a 5-door Sportback.

Audi's reputation for for seater convertibles developed from its 80-based Cabriolet kept in production long after the car on which it was based had been replaced. An enduringly handsome European car, it was favoured by the Princess of Wales, and liked for its quality build and style.

Chopping the roof off made it a bit of a jelly to drive, but that hardly got in the way of sales.

Things changed when the A4 cabrio was launched in 2002. Audi did a thorough job in making it bodily solid and introduced the innovation of diesel versions, something which now hardly raises an eyebrow.

That process has continued with open versions of its handsome A5 coupe, which are now reaching UK showrooms, and in engineering terms are hardly poor relations, being as up to date as anything Audi produces.

Audi A5 Cabriolet 2009 Road Test

Audi A5 Coupe, Cabriolet and Sporback 2011 Facelift Road Test

What does a Audi A5 Cabriolet (2009 – 2017) cost?

List Price from £34,790
Buy new from £26,289
Contract hire from £253.04 per month
Get a finance quote with CarMoney

What's the Audi A5 Cabriolet (2009 – 2017) like to drive?

The open body is commendably stiff, with only really poor surfaces inducing mild shake, and the cars ride comfortably and pliantly on some plusher versions the suspension is adjustable.

All the controls are light. This is something that applies to the steering which is accurate, precise but not especially engaging. Likewise the handling, although smaller engined, two wheel drive versions felt slightly lighter on their feet. Either way, the A5 cabriolet has been engineered for relaxed touring, rather than mad screeching about.

There will be a variety of drive trains (two and quattro four-wheel-drive), with a mix of four and six-cylinder petrol and diesel variants.

We were given two-litre petrols and 3.0 litre, six-cylinder diesels, and tried the first in two-wheel-drive, six-speed manual guise (theres also a CVT automatic) and the diesel with all-wheel-drive and a two pedal, 7-speed twin-clutch transmission. This was very smooth but sometimes needed time to make its mind up.

The little petrol engine is more than up to the task of propelling this heavy vehicle. It never feels strained, is responsive to the throttle and doesnt become course, even when revved hard, and is well suited to the car.

The diesel has the easy torque, or pulling power, youd expect. It feels a bit like hauling a mixing spoon out of a bowl of treacle, and the car accelerates like a small locomotive. Its said to reach 62 in 6.4 seconds and run out of puff at 153mph, in the process chucking out 179g of CO2 and consuming on average a gallon of diesel very 33 miles.

Engine MPG 0-62 CO2
1.8 TFSI 38–46 mpg 8.7–9.9 s 143–172 g/km
1.8 TFSI 177 42–48 mpg 8.7–8.8 s 127–154 g/km
1.8 TFSI 177 multitronic 42–47 mpg 8.3–8.9 s 132–154 g/km
1.8 TFSI multitronic 38–46 mpg 8.9–9.5 s 143–174 g/km
2.0 TDI 51–58 mpg 8.8–9.3 s 127–144 g/km
2.0 TDI 143 59 mpg 10.2 s 124–126 g/km
2.0 TDI 150 57–60 mpg 10.2 s 124 g/km
2.0 TDI 177 58 mpg 8.8 s 127 g/km
2.0 TDI 177 multitronic 57 mpg 8.3 s 132 g/km
2.0 TDI 190 53–59 mpg 8.2 s 125 g/km
2.0 TDI 190 multitronic 54–60 mpg 8.3 s 124 g/km
2.0 TDI multitronic 57 mpg 8.3 s 132 g/km
2.0 TDI quattro 52 mpg 8.5 s 142 g/km
2.0 TFSI 42–43 mpg 7.5 s 148–159 g/km
2.0 TFSI 225 41–45 mpg 7.4 s 148 g/km
2.0 TFSI 225 multitronic 43–46 mpg 7.6 s 145 g/km
2.0 TFSI 225 quattro S tronic 41 mpg 7.2 s 164 g/km
2.0 TFSI 230 41–43 mpg - 152–157 g/km
2.0 TFSI 230 multitronic 43 mpg - 153 g/km
2.0 TFSI 230 quattro multitronic 42 mpg - 156 g/km
2.0 TFSI 230 quattro S tronic 39 mpg - 167 g/km
2.0 TFSI multitronic 38–44 mpg 7.6–7.9 s 145–174 g/km
2.0 TFSI quattro 37–39 mpg 7.2–7.3 s 159–179 g/km
2.0 TFSI quattro S tronic 37 mpg 7.2 s 164–175 g/km
2.7 TDI 44 mpg 8.6 s 169 g/km
3.0 TDI 204 multitronic 54 mpg 7.6 s 138 g/km
3.0 TDI 245 quattro 44 mpg 5.9 s 154 g/km
3.0 TDI multitronic 54 mpg 7.6 s 138 g/km
3.0 TDI quattro 42–48 mpg 6.3–6.4 s 154–179 g/km
3.0 TDI quattro S tronic 43 mpg 6.3 s 154 g/km
3.0 TFSI quattro 33 mpg 6.3 s 199 g/km
3.2 FSI 33 mpg 6.9 s 199 g/km
3.2 FSI quattro 30 mpg 6.9 s 219 g/km
S5 3.0 TFSI 333 quattro S tronic 35 mpg - 189 g/km
S5 3.0 TFSI quattro 29–35 mpg 5.4–5.6 s 189–224 g/km
S5 3.0 TFSI quattro S tronic 33 mpg 5.1 s 199 g/km

Real MPG average for a Audi A5 Cabriolet (2009 – 2017)

Real MPG was created following thousands of readers telling us that their cars could not match the official figures.

Real MPG gives real world data from drivers like you to show how much fuel a vehicle really uses.

Average performance


Real MPG

18–58 mpg

MPGs submitted


Diesel or petrol? If you're unsure whether to go for a petrol or diesel (or even an electric model if it's available), then you need our Petrol or Diesel? calculator. It does the maths on petrols, diesels and electric cars to show which is best suited to you.

What have we been asked about the Audi A5 Cabriolet (2009 – 2017)?

Every day we're asked hundreds of questions from car buyers and owners through Ask Honest John. Our team of experts, including the nation's favourite motoring agony uncle - Honest John himself - answer queries and conudrums ranging from what car to buy to how to care for it as an owner. If you could do with a spot of friendly advice before buying you're next car, get in touch and we'll do what we can to help.

Ask HJ

Is there a problem with water leaks in the Audi A5 Cabriolet?

I have a 2012 Audi A5 Convertible and recently the Bluetooth connection for the hands free telephone has stopped working. I have taken it to my local Audi dealer and they have indicated that the problem is water ingress under the drivers footwell causing the Bluetooth ECU to fail. In order to sort out the fault they will have to strip out the carpet and take out the drivers seat to see where the water is coming from. They have quoted £1326.53 to carry out this work but I am not sure if this cost includes a replacement ECU. From my experience water ingress problems usually stem from blocked drain holes and I am fairly certain that I am not the first Audi owner to have this problem. The question is do you think an Audi dealer is justified in charging such an exorbitant amount to cure a problem that is probably a design fault.
There is a known fault with the A5 Convertible of the capillary tubes that drain condensation moisture from the soft top get blocked and the moisture simply drains into the car. This is a fundamental design fault with the car, but it's a 2012, so not a lot you can do apart from take it to an independent specialist who will work on it for a lot lower labour charge.
Answered by Honest John
More Questions

What do owners think?

Our view gives your our opinion, based on driving hundreds of cars every year, but you can't beat the views of someone who lives with a car day-in, day out.

  • 5 star
  • 4 star 33%
  • 3 star 33%
  • 2 star 33%
  • 1 star

See all owners' reviews