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Audi A5 Cabriolet (2009-2017) running costs and reliability

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Running costs rating: 2 out of 52.0

Written by Richard Kilpatrick Updated: 16 August 2022

Miles per pound (mpp)

Reliable fuel consumption data for comparison purposes is not available for this model.

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Fuel economy

A more stringent standard for fuel economy (WLTP) was introduced from September 2017, and this model was not required to undergo that test. Its fuel economy measured under the previous test system was 29 - 60 mpg. However these figures are less likely to be achievable in real world driving and so should never be compared to another car's mpg which was measured under the newer, more realistic WLTP system.

View mpg & specs for any version

Although the initial outlay is quite high, depreciation should be modest, and four-cylinder petrol and diesel versions offer surprisingly low costs. Servicing at Audi dealers won’t be cheap though while insurance starts at group 17 for the 2.0-litre and 3.2-litre models, going up to 18 for the 3.0 TDI.

Four-cylinder versions have relatively low emissions and a stop-start system joining the range after the launch offers access to even greener versions. The 3.2-litre is thirsty, with an average of 33mpg but the 2.0T FSI and 3.0-litre TDI models are better with fuel economy of more than 40mpg. The 2.0 TDI is clean thanks to the start-stop system and emits 148g/km of CO2 while averaging an impressive 50mpg.

The A5 shares many of its components with the A4 and in recent years that range has shown very good levels of reliability.