BMW 840 (diesel) • 34 cars with Valuation

Market overview: Diesel BMW 840 (May-2026): There are currently 34 used diesel BMW 840 cars for sale. Prices range from £24,990 to £36,990, with a median price of £29,973. AutoUncle has identified 6 cars as being offered below market price. The typical selling time for a diesel BMW 840 is approximately 46 days, and 70.6% of the listings have recently been reduced in price (Source: AutoUncle market data, May-2026).

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Used BMW 840 Comfort Edition 320 HP (235 kW) 2019 Black Coupe

(2019) BMW 840 Comfort Edition 320 HP

Good price

You save £2,105

LE10 3DJ Leicestershire, Leicestershire

184 g CO2/km comb. - 320 HP (235 kW) - 6.9 Mpg

Carwow

Used BMW 840 Comfort Edition 320 HP (235 kW) 2020 Blue Coupe

(2020) BMW 840 Comfort Edition 320 HP

Good price

You save £2,100

CM1 3BH Essex, Essex

183 g CO2/km comb. - 320 HP (235 kW) - 6.9 Mpg

Carwow

Used Mercedes CLS400 AMG line 330 HP (242 kW) 2021 Grey Coupe

(2021) Mercedes CLS400 AMG line 330 HP

Super price

You save £3,801

CW7 Cheshire West And Chester, Cheshire

191 g CO2/km comb. - 330 HP (242 kW) - 7.3 Mpg

Carwow

Used BMW M340 Comfort Edition 340 HP (250 kW) 2021 Blue Sedan

(2021) BMW M340 Comfort Edition 340 HP

Fair price

You save £1,150

M44 5AH Irlam, Manchester

160 g CO2/km comb. - 340 HP (250 kW) - 6.1 Mpg

Price checked by AutoUncle

Super price

Good price

Fair price

A bit pricey

Expensive

-9%

1 / 4

Used (2020) BMW 840 Comfort Edition 320 HP | Good price

8 Series 3.0 d Coupe 2dr Diesel

2020
44,163 miles
Trim level: Comfort Edition
3.0L Diesel
Coupe
Automatic
320 HP (235 kW)
CO2 emissions: 183 g CO2/km comb.
6.9 mpg
Details

Good price

£31,200

£34,350

CM1 3BH Essex, Essex

Availability verified

-15%

1 / 2

Used (2019) BMW 840 Comfort Edition 320 HP | Good price

8 Series d xDrive 2dr Auto

2019
42,850 miles
Trim level: Comfort Edition
3.0L Diesel
Coupe
Automatic
320 HP (235 kW)
CO2 emissions: 184 g CO2/km comb.
6.9 mpg
Details

Good price

£29,695

£34,995

LE10 3DJ Leicestershire, Leicestershire

Availability verified

-4%

1 / 3

Used (2020) BMW 840 Basis | Good price

840D XDRIVE AUTO d

2020
73,837 miles
Trim level: Basis
3.0L Diesel
Coupe
Automatic
Details

Good price

£26,850

£28,250

Motors.co.uk

RH12 3SH West Sussex, West Sussex

-3%

1 / 4

Used (2019) BMW 840 Comfort Edition | Super price

8 Series 3.0 d xDrive Auto 4WD 2dr

2019
67,977 miles
Trim level: Comfort Edition
3.0L Diesel
Coupe
Automatic
Details

Super price

£25,990

£26,990

Exchange and Mart

Lancashire, Lancashire

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Used BMW M340 Shadowline 340 HP (250 kW) 2022 Sedan

(2022) BMW M340 Shadowline 340 HP

Good price

You save £2,301

160 g CO2/km comb. - 340 HP (250 kW) - 6.1 Mpg

Carwow

Used BMW M340 Shadowline 340 HP (250 kW) 2021 Grey Sedan

(2021) BMW M340 Shadowline 340 HP

Good price

You save £1,519

YO304WR, North Yorkshire

160 g CO2/km comb. - 340 HP (250 kW) - 46.3 Mpg

Carwow

Used Mercedes GLE400 AMG line 330 HP (242 kW) 2022 Estate

(2022) Mercedes GLE400 AMG line 330 HP

Fair price

DE73 7HL Stenson, Derbyshire

220 g CO2/km comb. - 330 HP (242 kW) - 8.4 Mpg

Carwow

Used Mercedes GLE400 AMG line 330 HP (242 kW) 2022 Grey Estate

(2022) Mercedes GLE400 AMG line 330 HP

Good price

You save £1,701

RG2 0HS Berkshire, Berkshire

219 g CO2/km comb. - 330 HP (242 kW) - 8.0 Mpg

-21%

1 / 4

Used (2019) BMW 840 Comfort Edition 320 HP | Good price

8 Series d xDrive 2dr Auto

2019
56,953 miles
Trim level: Comfort Edition
3.0L Diesel
Coupe
Automatic
320 HP (235 kW)
CO2 emissions: 160 g CO2/km comb.
40.4 mpg
Details

Good price

£28,095

£35,990

Dealer

WC1E 7DP Greater London, London

-8%

1 / 4

Used (2019) BMW 840 M Performance | Super price

8 Series d xDrive 2dr Auto

2019
49,379 miles
Trim level: M Performance
3.0L Diesel
Coupe
Automatic
Details

Super price

£25,489

£27,989

Motors.co.uk

CM20 2BU Essex, Essex

-2%

1 / 4

Used (2019) BMW 840 Comfort Edition 320 HP | Fair price

8 Series d xDrive 2dr Auto

2019
71,324 miles
Trim level: Comfort Edition
3.0L Diesel
Coupe
Automatic
320 HP (235 kW)
CO2 emissions: 160 g CO2/km comb.
46.3 mpg
Details

Fair price

£26,898

£27,498

Dealer

WA15 8EX Greater Manchester, Manchester

-4%

1 / 4

Used (2021) BMW 840 M Sport | Fair price

8 Series 3.0 d xDrive M Sport Gran

2021
93,136 miles
Trim level: M Sport
3.0L Diesel
Coupe
Automatic
Details

Fair price

£28,490

£29,790

Motors.co.uk

WF2 0BG Alverthorpe, West Yorkshire

-5%

1 / 4

Used (2018) BMW 840 Comfort Edition 320 HP | Fair price

8 Series 3.0 d Coupe 2dr Diesel

2018
58,000 miles
Trim level: Comfort Edition
3.0L Diesel
Coupe
Automatic
320 HP (235 kW)
Details

Fair price

£28,450

£29,950

Motors.co.uk

SS14 3AU Essex, Essex

-3%

1 / 4

Used (2019) BMW 840 M Sport | Fair price

8 Series d xDrive 2dr Auto

2019
72,242 miles
Trim level: M Sport
3.0L Diesel
Coupe
Automatic
Details

Fair price

£27,995

£28,995

Exchange and Mart

NG7 2GA Lenton, Nottinghamshire

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Used BMW M340 Advantage 340 HP (250 kW) 2021 Black Sedan

(2021) BMW M340 Advantage 340 HP

Good price

You save £2,805

KT14 6EW Surrey, Surrey

160 g CO2/km comb. - 340 HP (250 kW) - 6.1 Mpg

Carwow

Used BMW M340 Comfort Edition 340 HP (250 kW) 2021 White Sedan

(2021) BMW M340 Comfort Edition 340 HP

Fair price

FY4 5PQ Lancashire, Lancashire

160 g CO2/km comb. - 340 HP (250 kW) - 6.1 Mpg

Carwow

Used BMW M340 340 HP (250 kW) 2024 Sedan

(2024) BMW M340 340 HP

Good price

You save £2,350

CM1 3BH Essex, Essex

163 g CO2/km comb. - 340 HP (250 kW) - 6.1 Mpg

Carwow

Used BMW M340 Comfort Edition 340 HP (250 kW) 2024 Blue Sedan

(2024) BMW M340 Comfort Edition 340 HP

Fair price

Estimated price £46,313

CT2 7PX Kent, Kent

163 g CO2/km comb. - 340 HP (250 kW) - 45.6 Mpg

-1%

1 / 4

Used (2018) BMW 840 Comfort Edition 316 HP | Fair price

8 Series d xDrive Coupe 3.0

2018
48,819 miles
Trim level: Comfort Edition
3.0L Diesel
Coupe
Automatic
316 HP (232 kW)
CO2 emissions: 160 g CO2/km comb.
40.4 mpg
Details

Fair price

£31,000

£31,500

Bmw.co.uk

HP23 Hertfordshire, Hertfordshire

-11%

1 / 4

Used (2019) BMW 840 Comfort Edition | Fair price

8 Series 3.0 d Steptronic xDrive

2019
48,460 miles
Trim level: Comfort Edition
3.0L Diesel
Coupe
Automatic
Details

Fair price

£30,950

£34,950

Exchange and Mart

B11 2NR West Midlands, West Midlands

-6%

1 / 4

Used (2020) BMW 840 Comfort Edition | Fair price

8 Series d xDrive 2dr Auto

2020
58,852 miles
Trim level: Comfort Edition
3.0L Diesel
Coupe
Automatic
Details

Fair price

£29,995

£31,990

Motors.co.uk

PE2 9PB Peterborough, Cambridgeshire

-2%

1 / 4

Used (2020) BMW 840 Comfort Edition 316 HP | Fair price

8 Series d xDrive Gran Coupe 3.0

2020
43,900 miles
Trim level: Comfort Edition
3.0L Diesel
Coupe
Automatic
316 HP (232 kW)
CO2 emissions: 190 g CO2/km comb.
38.7 mpg
Details

Fair price

£35,000

£36,000

Bmw.co.uk

HP11 1EZ Buckinghamshire, Buckinghamshire

-5%

1 / 4

Used (2020) BMW 840 Comfort Edition 316 HP | Fair price

8 Series d xDrive Coupe 3.0

2020
54,011 miles
Trim level: Comfort Edition
3.0L Diesel
Coupe
Automatic
316 HP (232 kW)
CO2 emissions: 183 g CO2/km comb.
40.4 mpg
Details

Fair price

£32,995

£34,995

Bmw.co.uk

BT12 6QU Belfast

1 / 2

Used (2019) BMW 840 Luxury Line 320 HP | Fair price

8 Series d xDrive 2dr Auto

2019
37,140 miles
Trim level: Luxury Line
3.0L Diesel
Coupe
Automatic
320 HP (235 kW)
Details

Fair price

£32,495

Motors.co.uk

LE10 1HQ Leicestershire, Leicestershire

-28%

1 / 4

Used (2019) BMW 840 Comfort Edition 320 HP | Fair price

d xDrive Coupe

2019
39,891 miles
Trim level: Comfort Edition
3.0L Diesel
Coupe
Automatic
320 HP (235 kW)
CO2 emissions: 160 g CO2/km comb.
46.3 mpg
Details

Fair price

£32,898

£45,898

Bmw.co.uk

G52 4FA Renfrewshire, Renfrewshire

-20%

1 / 4

Used (2020) BMW 840 Comfort Edition 316 HP | Fair price

d xDrive Coupe

2020
55,000 miles
Trim level: Comfort Edition
3.0L Diesel
Coupe
Automatic
316 HP (232 kW)
CO2 emissions: 164 g CO2/km comb.
40.4 mpg
Details

Fair price

£34,000

£43,000

Bmw.co.uk

SG1 2BE Hertfordshire, Hertfordshire

-12%

1 / 4

Used (2019) BMW 840 Comfort Edition 320 HP | Fair price

8 Series 3.0 d Coupe 2dr Diesel

2019
85,587 miles
Trim level: Comfort Edition
3.0L Diesel
Coupe
Automatic
320 HP (235 kW)
CO2 emissions: 160 g CO2/km comb.
40.4 mpg
Details

Fair price

£24,795

£28,295

Motors.co.uk

LU3 3AN Luton, Bedfordshire

-3%

1 / 4

Used (2019) BMW 840 Comfort Edition | Fair price

8 Series d xDrive 2dr Auto

2019
73,000 miles
Trim level: Comfort Edition
3.0L Diesel
Coupe
Automatic
Details

Fair price

£27,989

£28,989

Motors.co.uk

HG3 1DE Follifoot, North Yorkshire

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Used Mercedes GLE400 AMG line 330 HP (242 kW) 2022 Estate

(2022) Mercedes GLE400 AMG line 330 HP

Good price

You save £2,650

CM1 3BH Essex, Essex

220 g CO2/km comb. - 330 HP (242 kW) - 8.4 Mpg

Carwow

Used Mercedes GLE400 AMG line 330 HP (242 kW) 2022 Estate

(2022) Mercedes GLE400 AMG line 330 HP

Good price

You save £3,250

CM1 3BH Essex, Essex

220 g CO2/km comb. - 330 HP (242 kW) - 8.4 Mpg

Carwow

Used Mercedes GLE400 AMG line 330 HP (242 kW) 2022 Estate

(2022) Mercedes GLE400 AMG line 330 HP

Fair price

Estimated price £40,119

220 g CO2/km comb. - 330 HP (242 kW) - 8.4 Mpg

Carwow

Used Mercedes GLE400 AMG line 330 HP (242 kW) 2022 Estate

(2022) Mercedes GLE400 AMG line 330 HP

Super price

You save £3,549

LE12 7AT Mountsorrel, Leicestershire

220 g CO2/km comb. - 330 HP (242 kW) - 8.4 Mpg

1 / 4

Used (2019) BMW 840 Comfort Edition | Fair price

8 Series d xDrive 2dr Auto

2019
68,251 miles
Trim level: Comfort Edition
3.0L Diesel
Coupe
Automatic
Details

Fair price

£27,990

Motors.co.uk

IP13 6HJ Hasketon, Suffolk

-1%

1 / 4

Used (2019) BMW 840 | Fair price

8 Series d xDrive 2dr Auto

2019
40,793 miles
3.0L Diesel
Coupe
Automatic
Details

Fair price

£32,995

£33,490

Motors.co.uk

PE2 9PB Peterborough, Cambridgeshire

-8%

1 / 4

Used (2018) BMW 840 Comfort Edition | Fair price

8 Series d xDrive 2dr Auto

2018
53,630 miles
Trim level: Comfort Edition
3.0L Diesel
Coupe
Automatic
Details

Fair price

£28,660

£31,180

Motors.co.uk

RM7 0AZ Greater London, London

1 / 4

Used (2018) BMW 840 Comfort Edition | Fair price

8 Series d xDrive 2dr Auto

2018
53,650 miles
Trim level: Comfort Edition
3.0L Diesel
Coupe
Automatic
Details

Fair price

£29,995

Motors.co.uk

S9 4WN South Yorkshire, South Yorkshire

1 / 4

Used (2019) BMW 840 Comfort Edition 320 HP | Fair price

8 Series d xDrive 2dr Auto

2019
41,451 miles
Trim level: Comfort Edition
3.0L Diesel
Coupe
Automatic
320 HP (235 kW)
40.4 mpg
Details

Fair price

£31,690

Motors.co.uk

NW10 6PJ Greater London, London

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Used BMW M340 Shadowline 340 HP (250 kW) 2024 Black Sedan

(2024) BMW M340 Shadowline 340 HP

Good price

You save £2,310

CT2 7PX Kent, Kent

163 g CO2/km comb. - 340 HP (250 kW) - 45.6 Mpg

Carwow

Used BMW M340 340 HP (250 kW) 2024 Sedan

(2024) BMW M340 340 HP

Fair price

Estimated price £38,415

163 g CO2/km comb. - 340 HP (250 kW) - 6.1 Mpg

Sandicliffe.co.uk

Used Ford Transit Custom Limited 136 HP (100 kW) 2024 Black Van

(2024) Ford Transit Custom Limited 136 HP

Fair price

NG7 2SZ Nottingham, Nottinghamshire

136 HP (100 kW)

Sandicliffe.co.uk

Used Ford Ranger Raptor 213 HP (156 kW) 2022 Blue Pickup

(2022) Ford Ranger Raptor 213 HP

Fair price

Estimated price £31,130

LE2 6BW Leicester, Leicestershire

233 g CO2/km comb. - 213 HP (156 kW) - 10.5 Mpg

Showing 1 - 25 of 35 results

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