2018 Peugeot 308 1.5 BlueHDi GT Line

Price: £6,990. Fair price: £218 (3%) over the AskCar estimate of £6,772, our expected asking price for this car from its model, age, mileage and specification, drawing on 1,086 priced Peugeot 308 adverts on AskCar as of 6 November 2026.

AskCar lists 1,131 used Peugeot 308 from 793 UK dealerships, as of 6 November 2026.

Overview

  • Make: Peugeot
  • Model: 308
  • Trim: GT Line
  • Version: 1.5 BlueHDi GT Line Manual FWD Euro 6 (s/s) 5dr
  • Year: 2018
  • Mileage: 66,032 miles
  • Fuel: Diesel
  • Body: Hatchback, 5 doors, 5 seats
  • Engine: 1.5 litres
  • Gearbox: Manual
  • Drive: Front-wheel drive
  • Colour: Black
  • CO2: 96 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

The advertised mileage for this 2018 Peugeot 308 GT Line is 66,032 miles. Its asking price of £6,990 is £218 above the AskCar estimate of £6,772. To work out the AskCar estimate, we analyse UK dealer adverts for 1,086 Peugeot 308 cars across different ages and specifications. Since we first spotted the advert 162 days ago, the asking price has dropped by £935. According to the government's MOT record, its advertised mileage is consistent with the latest test. You can find this car at One 2 One Autos in Windsor. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 6 November 2026.

How we estimate prices and check cars

Price

Fair price: £218 (3%) over the AskCar estimate of £6,772.

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 1,086 priced Peugeot 308 adverts across different ages and specifications, as of 6 November 2026.

A 2018 Peugeot 308 with the 1.5 diesel engine is typically advertised at £7,500: the median of the 25 for sale on AskCar, as of 6 November 2026.

Time on sale

This 2018 Peugeot 308 has been on sale for at least 162 days.

Price history

AskCar first saw this advert on 28 May 2026 at £7,925. Its asking price is now £6,990, £935 less. The latest price cut was seen on 20 October 2026.

Price changes recorded:

  • 28 May 2026: £7,925
  • 15 July 2026: £7,750
  • 30 July 2026: £7,450
  • 20 September 2026: £7,290
  • 20 October 2026: £6,990

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: valid until 16 June 2027.

It has had 7 MOTs. The latest, on 17 June 2026, passed.

Advisories at the latest test: front tyre worn close to legal limit/worn on edge both tyres.

Mileage at that test: 66,028 miles, which matches the advertised 66,032 miles.

Advertised mileage is about 1,000 miles higher than the median mileage of a 2018 Peugeot 308 on AskCar.

Similar cars

17 other 2018 Peugeot 308 GT Line 1.5 diesel manual hatchbacks are for sale at UK dealers, from £4,495 to £8,695, as of 6 November 2026.

The 3 closest to this car in mileage:

  • 2018 Peugeot 308 GT Line, 1.5 diesel hatchback, red. Mileage: 65,408 miles. Price: £7,800, £810 more than this car. Dealer: Balmoral Motor Company in Dalkeith. AskCar page: https://askcar.co.uk/car/peugeot-308-2018-9f60d066bc92
  • 2018 Peugeot 308 GT Line, 1.5 diesel hatchback, grey. Mileage: 67,000 miles. Price: £7,995, £1,005 more than this car. Dealer: Bank Motors in Glasgow. AskCar page: https://askcar.co.uk/car/peugeot-308-2018-9dc0e9e5aaab
  • 2018 Peugeot 308 GT Line, 1.5 diesel hatchback, grey. Mileage: 63,211 miles. Price: £7,595, £605 more than this car. Dealer: Simon Bailes Northallerton in Northallerton. AskCar page: https://askcar.co.uk/car/peugeot-308-2018-3185a9d2f07d
  • The nearest: 2018 Peugeot 308 GT Line, 1.5 diesel hatchback, black, 23 miles from this car. Mileage: 47,000 miles. Price: £5,725, £1,265 less than this car. Dealer: Simply Motors in Norbury. AskCar page: https://askcar.co.uk/car/peugeot-308-2018-5b0989984978

Browse all Peugeot 308 cars for sale · 2018 Peugeot 308 price guide

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Photos

57 photos of this car are on its AskCar page.

As of 6 November 2026, AskCar lists 598,752 cars and vans from 12,905 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.