Used BYD Seal U for sale near Dartford
There are 11 used BYD Seal U for sale from UK dealers within 20 miles of Dartford on AskCar, as of 9 November 2026. Typical asking price £25,000 (the median: half cost less, half cost more). The cheapest is £22,300. AskCar lists 835 used BYD Seal U across the UK, from 156 dealerships.
The middle half of the 11 cars are priced between £24,500 and £26,000.
As of 9 November 2026, AskCar lists 584,619 cars and vans from 12,676 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.
Price reductions near Dartford
4 of the 11 BYD Seal U within 20 miles of Dartford had their price reduced in the last 14 days to 9 November 2026. Each one's line in the list below says by how much.
Cars for sale now
Best value first: the cars priced furthest below their AskCar estimate come first, and those without one come after. The AskCar estimate is our expected asking price for that one car, from its model, age, mileage and specification, using the 814 priced BYD Seal U adverts on AskCar as of 9 November 2026.
Each car: year, make, model, engine and trim, power, gearbox, fuel, body, doors, colour; mileage; price and its changes; how the price compares with the AskCar estimate; emissions standard and ULEZ compliance where it holds; MOT; dealer, town and distance; AskCar page.
Cheaper cars like each one, with its price history, are on its AskCar page.
- 2025 BYD Seal U 1.5 Boost, 214 bhp, automatic, plug-in hybrid (petrol), SUV, 5 doors, grey. Mileage: 8,064 miles. Price: £23,399, reduced by £2,100 from £25,499 since AskCar first saw it on 4 September 2026, 66 days ago. Fair price: £599 (2%) under the AskCar estimate of £23,998. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Hendy Peugeot & Vauxhall Tonbridge in Tonbridge, 18 miles from Dartford. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-c2b8935ee28c
- 2026 BYD Seal U 1.5 Boost, 214 bhp, automatic, plug-in hybrid (petrol), SUV, 5 doors, grey. Mileage: 5,103 miles. Price: £25,045, reduced by £1,205 from £26,250 since AskCar first saw it on 24 September 2026, 46 days ago. Fair price: £501 (1%) under the AskCar estimate of £25,546. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Glyn Hopkin BYD Waltham Abbey in Waltham Abbey, 19 miles from Dartford. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-4ca4bc786dce
- 2025 BYD Seal U 1.5 Comfort, 214 bhp, automatic, plug-in hybrid (petrol), SUV, 5 doors, black. Mileage: 22,335 miles. Price: £22,300, unchanged since AskCar first saw it on 4 November 2026, 5 days ago. Fair price: £439 (1%) under the AskCar estimate of £22,739. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Lmc Cars in Upminster, 8 miles from Dartford. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-5331a446beaf
- 2025 BYD Seal U 1.5 Design, 319 bhp, automatic, plug-in hybrid (petrol), SUV, 5 doors, white. Mileage: 8,200 miles. Price: £24,995, reduced by £1,000 from £25,995 since AskCar first saw it on 16 September 2026, 54 days ago. Fair price: £251 (under 1%) under the AskCar estimate of £25,246. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Auto 2000 in Havering, 17 miles from Dartford. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-b636dae7b9e5
- 2025 BYD Seal U 1.5 Comfort, 214 bhp, automatic, plug-in hybrid (petrol), SUV, 5 doors, white. Mileage: 9,000 miles. Price: £24,595, reduced by £2,000 from £26,595 since AskCar first saw it on 30 July 2026, 102 days ago. Fair price: £98 (under 1%) under the AskCar estimate of £24,693. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 14 June 2027. Dealer: WJ King Vauxhall & BYD Gravesend in Gravesend, 6 miles from Dartford. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-489c761e59fe
- 2025 BYD Seal U 1.5 Boost, 214 bhp, automatic, plug-in hybrid (petrol), SUV, 5 doors, blue. Mileage: 6,421 miles. Price: £24,495, reduced by £2,670 from £27,165 since AskCar first saw it on 13 June 2026, 149 days ago. Fair price: £81 (under 1%) over the AskCar estimate of £24,414. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: WJ King Vauxhall & BYD Bromley in Bromley, 9 miles from Dartford. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-5b59d9f6a127
- 2026 BYD Seal U 1.5 Design, 319 bhp, automatic, plug-in hybrid (petrol), SUV, 5 doors, black. Mileage: 4,417 miles. Price: £28,999, reduced by £1,700 from £30,699 since AskCar first saw it on 2 July 2026, 130 days ago. Fair price: £126 (under 1%) over the AskCar estimate of £28,873. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Hendy Peugeot & Vauxhall Tonbridge in Tonbridge, 18 miles from Dartford. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-ee4eef6184f2
- 2026 BYD Seal U 1.5 Boost, 214 bhp, automatic, plug-in hybrid (petrol), SUV, 5 doors, black. Mileage: 9,209 miles. Price: £25,899, reduced by £81 from £25,980 since AskCar first saw it on 10 October 2026, 30 days ago. Fair price: £1,426 (5%) over the AskCar estimate of £24,473. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Hendy Peugeot & Vauxhall Tonbridge in Tonbridge, 18 miles from Dartford. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-a4999381ad3d
- 2025 BYD Seal U 1.5 Design, 319 bhp, automatic, plug-in hybrid (petrol), SUV, 5 doors, white. Mileage: 15,538 miles. Price: £26,397, raised by £898 from £25,499 since AskCar first saw it on 4 September 2026, 66 days ago. Fair price: £1,883 (7%) over the AskCar estimate of £24,514. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Hendy Peugeot & Vauxhall Tonbridge in Tonbridge, 18 miles from Dartford. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-430e57062918
- 2025 BYD Seal U 1.5 Design, 319 bhp, automatic, plug-in hybrid (petrol), SUV, 5 doors, grey. Mileage: 4,103 miles. Price: £32,240, unchanged since AskCar first saw it on 22 October 2026, 18 days ago. Above the going rate: £5,421 (20%) over the AskCar estimate of £26,819. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Hendy Peugeot & Vauxhall Tonbridge in Tonbridge, 18 miles from Dartford. AskCar page: https://askcar.co.uk/car/byd-seal-u-2025-36b08a5debd0
- 2026 BYD Seal U 1.5 Boost, 214 bhp, automatic, plug-in hybrid (petrol), SUV, 5 doors, grey. Mileage: 10,851 miles. Price: £24,083, reduced by £1,842 from £25,925 since AskCar first saw it on 16 October 2026, 24 days ago. Fair price: £69 (under 1%) under the AskCar estimate of £24,152. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Glyn Hopkin BYD East London in London, 10 miles from Dartford. AskCar page: https://askcar.co.uk/car/byd-seal-u-2026-ad8397fdecfe
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