Used BMW X6 for sale near Milton Keynes
There are 28 used BMW X6 for sale from UK dealers within 20 miles of Milton Keynes on AskCar, as of 11 November 2026. Typical asking price £35,500 (the median: half cost less, half cost more). The cheapest is £6,595. AskCar lists 551 used BMW X6 across the UK, from 388 dealerships.
The middle half of the 28 cars are priced between £21,000 and £46,000.
As of 11 November 2026, AskCar lists 593,449 cars and vans from 12,847 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.
Price reductions near Milton Keynes
12 of the 28 BMW X6 within 20 miles of Milton Keynes had their price reduced in the last 14 days to 11 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 540 priced BMW X6 adverts on AskCar as of 11 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.
- 2013 BMW X6 3.0 30d, 242 bhp, automatic, diesel, SUV, 5 doors, 4 seats, blue. Mileage: 111,000 miles. Price: £6,990, reduced by £1,000 from £7,990 since AskCar first saw it on 8 September 2026, 64 days ago. Good value: £1,518 (17%) under the AskCar estimate of £8,508. Euro 5 emissions standard. MOT: valid until 29 May 2027. Dealer: Auto Globe in Milton Keynes, 3 miles from Milton Keynes. AskCar page: https://askcar.co.uk/car/bmw-x6-2013-8f69d6656b99
- 2018 BMW X6 3.0 40d M Sport Edition, 309 bhp, automatic, diesel, SUV, 5 doors, blue. Mileage: 84,000 miles. Price: £17,450, reduced by £2,500 from £19,950 since AskCar first saw it on 30 August 2026, 73 days ago. Good value: £2,939 (14%) under the AskCar estimate of £20,389. Euro 6 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 13 July 2026; ask the dealer for the current MOT. Dealer: The Car Shop Bedford in Bedford, 13 miles from Milton Keynes. AskCar page: https://askcar.co.uk/car/bmw-x6-2018-1b342094e454
- 2020 BMW X6 3.0 M50d, 395 bhp, automatic, diesel, SUV, 5 doors, green. Mileage: 45,482 miles. Price: £37,500, reduced by £2,130 from £39,630 since AskCar first saw it on 3 August 2026, 100 days ago. Fair price: £3,192 (7%) under the AskCar estimate of £40,692. Euro 6 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 23 October 2026; ask the dealer for the current MOT. Dealer: Evans Halshaw Vauxhall Bedford in Bedford, 15 miles from Milton Keynes. AskCar page: https://askcar.co.uk/car/bmw-x6-2020-3791e251b049
- 2022 BMW X6 4.4 M50i V8, 523 bhp, automatic, petrol, SUV, 5 doors, black. Mileage: 35,652 miles. Price: £42,995, reduced by £4,005 from £47,000 since AskCar first saw it on 2 September 2026, 70 days ago. Fair price: £2,948 (6%) under the AskCar estimate of £45,943. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 26 August 2027. Dealer: Sytner Tring BMW in Tring, 19 miles from Milton Keynes. AskCar page: https://askcar.co.uk/car/bmw-x6-2022-d275f9394493
- 2022 BMW X6 3.0 40i MHT M Sport, 328 bhp, automatic, petrol, SUV, 5 doors, grey. Mileage: 27,947 miles. Price: £43,580, reduced by £10 from £43,590 since AskCar first saw it on 24 October 2026, 18 days ago. Fair price: £2,902 (6%) under the AskCar estimate of £46,482. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 10 April 2027. Dealer: Stratstone BMW Milton Keynes in Milton Keynes, 2 miles from Milton Keynes. AskCar page: https://askcar.co.uk/car/bmw-x6-2022-f9a090f53441
- 2023 BMW X6 3.0 40i MHT M Sport, 328 bhp, automatic, petrol, SUV, 5 doors, blue. Mileage: 18,073 miles. Price: £50,490, reduced by £7,510 from £58,000 since AskCar first saw it on 19 June 2026, 145 days ago. Fair price: £2,604 (4%) under the AskCar estimate of £53,094. Euro 6 emissions standard. ULEZ compliant. Dealer: Sytner Luton BMW in Luton, 16 miles from Milton Keynes. AskCar page: https://askcar.co.uk/car/bmw-x6-2023-8c8cd6c6a67a
- 2018 BMW X6 3.0 M50d, 375 bhp, automatic, diesel, SUV, 5 doors, white. Mileage: 53,285 miles. Price: £23,989, unchanged since AskCar first saw it on 1 November 2026, 10 days ago. Fair price: £1,132 (4%) under the AskCar estimate of £25,121. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 22 June 2027. Dealer: A6 Motors in Luton, 15 miles from Milton Keynes. AskCar page: https://askcar.co.uk/car/bmw-x6-2018-1fd942cdd615
- 2018 BMW X6 3.0 40d M Sport, 309 bhp, automatic, diesel, SUV, 5 doors, grey. Mileage: 72,567 miles. Price: £19,995, reduced by £2,000 from £21,995 since AskCar first saw it on 13 August 2026, 90 days ago. Fair price: £704 (3%) under the AskCar estimate of £20,699. Euro 6 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 19 July 2026; ask the dealer for the current MOT. Dealer: Hampton Car Sales in Northampton, 13 miles from Milton Keynes. AskCar page: https://askcar.co.uk/car/bmw-x6-2018-11090ea037aa
- 2026 BMW X6 3.0 M Sport, automatic, diesel, SUV, 5 doors, black. Mileage: 11,960 miles. Price: £62,250, raised by £400 from £61,850 since AskCar first saw it on 22 October 2026, 20 days ago. Fair price: £2,085 (3%) under the AskCar estimate of £64,335. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Wollaston BMW in Wollaston, 14 miles from Milton Keynes. AskCar page: https://askcar.co.uk/car/bmw-x6-2026-1d817e4fc8f4
- 2017 BMW X6 3.0, automatic, diesel, SUV, 5 doors, white. Mileage: 63,220 miles. Price: £22,000, reduced by £1,670 from £23,670 since AskCar first saw it on 1 July 2026, 133 days ago. Fair price: £396 (1%) under the AskCar estimate of £22,396. Euro 6 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 12 August 2026; ask the dealer for the current MOT. Dealer: Argon Automotive in Kempston, 12 miles from Milton Keynes. AskCar page: https://askcar.co.uk/car/bmw-x6-2017-155c64579ac8
- 2024 BMW X6 3.0 M Sport, automatic, diesel, SUV, 5 doors, black. Mileage: 14,288 miles. Price: £57,190, reduced by £800 from £57,990 since AskCar first saw it on 21 October 2026, 21 days ago. Fair price: £839 (1%) under the AskCar estimate of £58,029. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: MINI UK at Stratstone Milton Keynes in Milton Keynes, 2 miles from Milton Keynes. AskCar page: https://askcar.co.uk/car/bmw-x6-2024-64d6a503f912
- 2017 BMW X6 3.0 M50d, 375 bhp, automatic, diesel, SUV, 5 doors, white. Mileage: 72,347 miles. Price: £21,490, unchanged since AskCar first saw it on 31 October 2026, 11 days ago. Fair price: £200 (under 1%) under the AskCar estimate of £21,690. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 29 January 2027. Dealer: Kennington Car Sales in Bletchley, 4 miles from Milton Keynes. AskCar page: https://askcar.co.uk/car/bmw-x6-2017-8e176beda51e
- 2021 BMW X6 3.0 40i MHT M Sport, 328 bhp, automatic, petrol, SUV, 5 doors, green. Mileage: 32,286 miles. Price: £44,000, unchanged since AskCar first saw it on 24 October 2026, 18 days ago. Fair price: £333 (under 1%) under the AskCar estimate of £44,333. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 15 November 2026. Dealer: Sytner Tring BMW in Tring, 19 miles from Milton Keynes. AskCar page: https://askcar.co.uk/car/bmw-x6-2021-cc56957820a8
- 2021 BMW X6 3.0 30d MHT M Sport, 282 bhp, automatic, diesel, SUV, 5 doors, blue. Mileage: 47,400 miles. Price: £37,989, reduced by £3,000 from £40,989 since AskCar first saw it on 25 August 2026, 78 days ago. Fair price: £87 (under 1%) under the AskCar estimate of £38,076. Euro 6 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 3 October 2026; ask the dealer for the current MOT. Dealer: A6 Motors in Luton, 15 miles from Milton Keynes. AskCar page: https://askcar.co.uk/car/bmw-x6-2021-7b6747230280
- 2021 BMW X6 3.0 40d MHT M Sport, 335 bhp, automatic, diesel, SUV, 5 doors, black. Mileage: 83,250 miles. Price: £33,989, reduced by £1,000 from £34,989 since AskCar first saw it on 9 October 2026, 33 days ago. Fair price: £32 (under 1%) over the AskCar estimate of £33,957. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 22 January 2027. Dealer: FTR Performance in Tring, 15 miles from Milton Keynes. AskCar page: https://askcar.co.uk/car/bmw-x6-2021-514765d1bd8b
- 2024 BMW X6 3.0 40d MHT M Sport, 347 bhp, automatic, diesel, SUV, 5 doors, white. Mileage: 20,073 miles. Price: £57,495, reduced by £5,500 from £62,995 since AskCar first saw it on 11 July 2026, 123 days ago. Fair price: £144 (under 1%) over the AskCar estimate of £57,351. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Crystal Motor Company in Northampton, 14 miles from Milton Keynes. AskCar page: https://askcar.co.uk/car/bmw-x6-2024-9e8251657942
- 2022 BMW X6 3.0 M Sport, automatic, diesel, SUV, 5 doors, grey. Mileage: 69,750 miles. Price: £36,750, unchanged since AskCar first saw it on 23 October 2026, 19 days ago. Fair price: £186 (under 1%) over the AskCar estimate of £36,564. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 8 February 2027. Dealer: Torque Point in Leighton Buzzard, 10 miles from Milton Keynes. AskCar page: https://askcar.co.uk/car/bmw-x6-2022-4c8e24d20bc5
- 2015 BMW X6 3.0 M50d, 376 bhp, automatic, diesel, SUV, 5 doors, black. Mileage: 47,000 miles. Price: £22,950, reduced by £550 from £23,500 since AskCar first saw it on 13 July 2026, 121 days ago. Fair price: £302 (1%) over the AskCar estimate of £22,648. Euro 6 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 8 July 2026; ask the dealer for the current MOT. Dealer: Priory Cars in Bedford, 14 miles from Milton Keynes. AskCar page: https://askcar.co.uk/car/bmw-x6-2015-85aab61dfaad
- 2025 BMW X6 3.0 30d MHT M Sport, 294 bhp, automatic, diesel, SUV, 5 doors, grey. Mileage: 18,384 miles. Price: £58,450, unchanged since AskCar first saw it on 5 November 2026, 6 days ago. Fair price: £922 (1%) over the AskCar estimate of £57,528. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Sytner Luton BMW in Luton, 16 miles from Milton Keynes. AskCar page: https://askcar.co.uk/car/bmw-x6-2025-db15b068d25d
- 2023 BMW X6 3.0 40i MHT M Sport, 328 bhp, automatic, petrol, SUV, 5 doors, blue. Mileage: 18,571 miles. Price: £53,995, reduced by £505 from £54,500 since AskCar first saw it on 11 October 2026, 31 days ago. Fair price: £1,001 (1%) over the AskCar estimate of £52,994. Euro 6 emissions standard. ULEZ compliant. Dealer: Sytner Tring BMW in Tring, 19 miles from Milton Keynes. AskCar page: https://askcar.co.uk/car/bmw-x6-2023-27c2f4872a86
- 2016 BMW X6 3.0 40d M Sport, 309 bhp, automatic, diesel, SUV, 5 doors, black. Mileage: 113,000 miles. Price: £14,499, reduced by £1,216 from £15,715 since AskCar first saw it on 15 July 2026, 119 days ago. Fair price: £294 (2%) over the AskCar estimate of £14,205. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 7 February 2027. Dealer: Dynamic Cars in Dunstable, 14 miles from Milton Keynes. AskCar page: https://askcar.co.uk/car/bmw-x6-2016-4aa92c23c85d
- 2016 BMW X6 3.0 30d M Sport, 254 bhp, automatic, diesel, SUV, 5 doors, grey. Mileage: 83,133 miles. Price: £17,295, reduced by £500 from £17,795 since AskCar first saw it on 5 September 2026, 67 days ago. Fair price: £445 (2%) over the AskCar estimate of £16,850. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 14 February 2027. Dealer: Tenby Car Supermarket in Luton, 14 miles from Milton Keynes. AskCar page: https://askcar.co.uk/car/bmw-x6-2016-06f53ad49272
- 2010 BMW X6 3.0 40d, 302 bhp, automatic, diesel, SUV, 5 doors, 4 seats, black. Mileage: 119,000 miles. Price: £6,595, reduced by £900 from £7,495 since AskCar first saw it on 1 June 2026, 163 days ago. Fair price: £205 (3%) over the AskCar estimate of £6,390. Euro 5 emissions standard. MOT: the latest record we hold ran out on 5 October 2026; ask the dealer for the current MOT. Dealer: M&A Car Shop in Wellingborough, 19 miles from Milton Keynes. AskCar page: https://askcar.co.uk/car/bmw-x6-2010-0891b1b1f070
- 2023 BMW X6 3.0 40i MHT M Sport, automatic, petrol, SUV, 5 doors, blue. Mileage: 37,776 miles. Price: £49,850, reduced by £3,100 from £52,950 since AskCar first saw it on 3 October 2026, 39 days ago. Fair price: £2,478 (5%) over the AskCar estimate of £47,372. Euro 6 emissions standard. ULEZ compliant. Dealer: Wollaston BMW in Wollaston, 14 miles from Milton Keynes. AskCar page: https://askcar.co.uk/car/bmw-x6-2023-f53ca525bd85
- 2020 BMW X6 3.0 M50d, 395 bhp, automatic, diesel, SUV, 5 doors, black. Mileage: 36,209 miles. Price: £44,950, unchanged since AskCar first saw it on 4 October 2026, 38 days ago. Fair price: £2,358 (5%) over the AskCar estimate of £42,592. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 22 April 2027. Dealer: J S Exclusive Motors in Milton Keynes, 3 miles from Milton Keynes. AskCar page: https://askcar.co.uk/car/bmw-x6-2020-17ac36ab68cb
- 2018 BMW X6 3.0 30d M Sport, 254 bhp, automatic, diesel, SUV, 5 doors, black. Mileage: 76,900 miles. Price: £21,389, reduced by £600 from £21,989 since AskCar first saw it on 30 September 2026, 42 days ago. Above the going rate: £1,726 (8%) over the AskCar estimate of £19,663. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 7 January 2027. Dealer: A6 Motors in Luton, 15 miles from Milton Keynes. AskCar page: https://askcar.co.uk/car/bmw-x6-2018-c174b72c4856
- 2012 BMW X6 3.0 M50d, 376 bhp, automatic, diesel, SUV, 5 doors, 4 seats, black. Mileage: 105,000 miles. Price: £11,000, reduced by £495 from £11,495 since AskCar first saw it on 20 October 2026, 22 days ago. Above the going rate: £1,140 (11%) over the AskCar estimate of £9,860. Euro 5 emissions standard. MOT: valid until 13 November 2026. Dealer: T W Automotive in Milton Keynes, 2 miles from Milton Keynes. AskCar page: https://askcar.co.uk/car/bmw-x6-2012-8cd112c1c7c9
- 2008 BMW X6 4.4, 402 bhp, automatic, petrol, estate, 5 doors, 4 seats, white. Mileage: 40,600 miles. Price: £25,000, unchanged since AskCar first saw it on 28 May 2026, 167 days ago. Above the going rate: £12,469 (99%) over the AskCar estimate of £12,531. Euro 5 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 16 July 2026; ask the dealer for the current MOT. Dealer: Praters in Leighton Buzzard, 9 miles from Milton Keynes. AskCar page: https://askcar.co.uk/car/bmw-x6-2008-edb4cc2cef25
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