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Audi TT Roadster (1999-2006) running costs and reliability

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Running costs rating: 3.5 out of 53.5

Written by David Ross Published: 6 June 2019

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 26 - 34 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

Fuel economy isn’t too bad – all versions can manage close to 30mpg if taken easy and its residuals have proven to be excellent. Insurance won’t be cheap and Audi servicing is renowned for being expensive, especially at main dealers.

The TT performs fairly badly on the eco front. With an average of 226g/km CO2 across the range, its emissions are a little high for a sports roadster. It’s worth noting that the line-up does not feature any diesel models, which typically produce less carbon dioxide than petrol engines with similar power outputs. The range is not very frugal, averaging 30mpg.

Materials are of the highest quality and the TT has been well engineered to be used every day. If properly serviced even high mileages aren’t a problem. However this is a car that owners expect to be faultless, and niggles are often reported