2018 Audi TT 1.8 TFSI S Line
Price: £14,500. Fair price: £531 (3%) over the AskCar estimate of £13,969, our expected asking price for this car from its model, age, mileage and specification, drawing on 1,082 priced Audi TT adverts on AskCar as of 7 November 2026.
AskCar lists 1,164 used Audi TT from 843 UK dealerships, as of 7 November 2026.
Overview
- Make: Audi
- Model: TT
- Trim: S Line
- Version: 1.8 S Line Manual FWD Euro 6 2dr (177 bhp)
- Year: 2018
- Mileage: 50,200 miles
- Fuel: Petrol
- Body: Coupe, 2 doors, 4 seats
- Engine: 1.8 litres, 177 bhp
- Gearbox: Manual
- Drive: Front-wheel drive
- Colour: Grey
- CO2: 138 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
With 50,200 miles on the clock, this 2018 Audi TT S Line has done roughly 2,800 fewer miles than a typical 2018 Audi TT. Priced at £14,500, it is advertised £531 above the AskCar estimate of £13,969. To work out the AskCar estimate, we analyse UK dealer adverts for 1,082 Audi TT cars across different ages and specifications. The dealer may accept less: this car has been on sale for at least 112 days. You can find this car at RS Cars in Penarth. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 7 November 2026.
Price
Fair price: £531 (3%) over the AskCar estimate of £13,969.
The AskCar estimate is our expected asking price for this car. It uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It is an advertised price, not a confirmed sale price.
It draws on 1,082 priced Audi TT adverts across different ages and specifications, as of 7 November 2026.
A 2018 Audi TT with the 1.8 petrol engine is typically advertised at £13,500: the median of the 21 for sale on AskCar, as of 7 November 2026.
Time on sale
The dealer may accept less. This 2018 Audi TT has been on sale for at least 112 days. About 6 in 10 of 2018 Audi TT cars are gone from sale within a month of being advertised: 50 of the 85 first advertised between 11 July 2026 and 4 October 2026.
Price history
AskCar first saw this advert on 18 July 2026 at £14,500. Its asking price has not changed.
Mileage and MOT
Advertised mileage is about 2,800 miles lower than the median mileage of a 2018 Audi TT on AskCar.
Similar cars
2 other 2018 Audi TT S Line 1.8 petrol manual coupes are for sale at UK dealers, from £12,341 to £15,990, as of 7 November 2026.
The 2 closest to this car in mileage:
- 2018 Audi TT S Line, 1.8 petrol coupe, black. Mileage: 33,923 miles. Price: £15,990, £1,490 more than this car. Dealer: Group 1 Automotive Lowestoft Audi in Lowestoft. AskCar page: https://askcar.co.uk/car/audi-tt-2018-69a099578e2b
- 2018 Audi TT S Line, 1.8 petrol coupe, blue. Mileage: 75,000 miles. Price: £12,341, £2,159 less than this car. Dealer: Vindis Group Cambridge Audi in Cambridge. AskCar page: https://askcar.co.uk/car/audi-tt-2018-b300541ef526
Browse all Audi TT cars for sale · 2018 Audi TT price guide
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Photos
31 photos of this car are on its AskCar page.
As of 7 November 2026, AskCar lists 601,018 cars and vans from 12,892 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.