Audi A5 Cabriolet (2009 – 2017) Review

Audi A5 Cabriolet (2009 – 2017) At A Glance


+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.

Insurance Groups are between 26–43
On average it achieves 75% of the official MPG figure

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

Car seat chooser

Child seats that fit a Audi A5 Cabriolet (2009 – 2017)

Our unique Car Seat Chooser shows you which child car seats will fit this car and which seat positions that they will fit, so that you don't have to check every car seat manufacturer's website for compatibility.

Which car seat will suit you?

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

18–54 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.

Satisfaction Index

Satisfaction Index What is your car like to live with?

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Ask Honest John

What should I look for when buying an Audi A5 with a CVT gearbox?
"I have found an 2012 Audi A5 that's covered 100,000 miles, but it does have a Continuously Variable Transmission (CVT). Not everyones cup of tea, but are they reliable enough to consider buying? I have read that Audi have stopped using them, but only because their fuel efficiency has been superseded. During a test drive is there anything I could do to highlight any weakness in this particular car's transmission? "
Someone on an Audi forum will be able to give you specific advice, but it makes sense to ensure the car accelerates smoothly, picks up from part throttle without jerking, makes no peculiar noises and shifts gear without hesitating. Check there are no leaks from the transmission housing and it would be good to have proof of a fluid change.
Answered by Russell Campbell
Is the old Audi A5 problematic?
"I'm interested in a 2011 Audi A5 convertible. It's diesel with 67,000 miles. Is there anything that I should be aware of, or that should put me off buying this? Someone has mentioned problems with the diesel engine. Is there anything I should look into further? Any help would be greatly received."
Lots of expensive problems with the old Audi A5 convertible. You can see them all here: Important to note that the costs to service and maintain this car will always be relative to the A5's price when new (£40k) and not one that's now worth between £8000 and £10,000. Personally, this is not a car I'd recommend. But if you buy one, make sure you have lots of money in reserve for the issues that will inevitably arise.
Answered by Dan Powell
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
Audi A5 Cabrio – buy now or wait for the new version?
"As part of my mid-life crisis, I've been looking at Audi A5 Cabrio deals. However, with the new model imminent, would it be better to wait for the new car? And when will you get the chance to road test it? "
We're testing the new A5 on the 28th November, so expect a full road test shortly after that date. Don't know when the new cabrio will arrive, but guess at 6 - 9 months time. We also don't know how the current VED bands will be affected in the chancellor's autumn statement, so worth waiting for that.
Answered by Honest John
More Questions

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