Used Seat diesel • 1,178 listings compared on price

Market overview: Market overview for used Seat diesel (April-2026): AutoUncle has price-compared 1,178 used Seat diesel vehicles from 42 dealer sites. The three most popular models are currently Seat Leon, Seat Ateca, Seat Alhambra, with prices ranging from £2,295 to £20,995 and a median price of £8,990. The most common body type is SUV. AutoUncle has identified 164 cars currently listed below expected market value, and 33.6% of listings have had a price reduction in the last 30 days (largest saving: £2,595). The average selling time for a used Seat diesel is 24 days. (Source: AutoUncle market data, April-2026)

Featured deals

Verified Dealers

Become a verified dealer

Become a verified dealer

Carwow

Used Seat Ateca SE Technology 116 HP (85 kW) 2019 Blue SUV

(2019) Seat Ateca SE Technology 116 HP

Fair price

PE134AX, Cambridgeshire

156 g CO2/km comb. - 116 HP (85 kW) - 5.6 Mpg

Carwow

Used Seat Ateca SE Technology 116 HP (85 kW) 2019 Orange SUV

(2019) Seat Ateca SE Technology 116 HP

Good price

You save £1,005

LE10 3DJ Leicestershire, Leicestershire

128 g CO2/km comb. - 116 HP (85 kW) - 5.6 Mpg

Carwow

Used Seat Leon FR 184 HP (135 kW) 2016 Hatchback

(2016) Seat Leon FR 184 HP

Fair price

CW7 Cheshire West And Chester, Cheshire

118 g CO2/km comb. - 184 HP (135 kW) - 4.5 Mpg

Carwow

Used Seat Leon SE Dynamic 110 HP (80 kW) 2016 Hatchback

(2016) Seat Leon SE Dynamic 110 HP

Fair price

Estimated price £10,132

CM167NY Essex, Essex

103 g CO2/km comb. - 110 HP (80 kW) - 4.1 Mpg

Price checked by AutoUncle

Super price

Good price

Fair price

A bit pricey

Expensive

-3%

1 / 4

Used (2023) Seat Ateca 4Drive 150 HP | Good price

- 2.0 TDI 150 FR 5dr DSG 4Driv

2023
26,000 miles
Trim level: 4Drive
2.0L Diesel
SUV
Automatic
150 HP (110 kW)
CO2 emissions: 155 g CO2/km comb.
mpg: 5.9
Details

Good price

£18,599

£19,199

M417TB Urmston, Manchester

Availability verified

-3%

1 / 3

Used (2022) Seat Tarraco XCELLENCE Lux 200 HP | Good price

DIESEL ESTATE 2.0 TDI Xcellence

2022
22,620 miles
Trim level: XCELLENCE Lux
2.0L Diesel
SUV
Automatic
200 HP (147 kW)
CO2 emissions: 148 g CO2/km comb.
mpg: 5.7
Details

Good price

£23,499

£24,299

CW7 Cheshire West And Chester, Cheshire

Availability verified

-1%

1 / 4

Used (2020) Seat Ateca FR 150 HP | Good price

- 2.0 TDI FR [EZ] 5dr

2020
39,240 miles
Trim level: FR
2.0L Diesel
SUV
Manual
150 HP (110 kW)
CO2 emissions: 148 g CO2/km comb.
mpg: 5.6
Details

Good price

£13,699

£13,899

CW7 Cheshire West And Chester, Cheshire

Availability verified

-3%

1 / 4

Used (2016) Seat Leon FR 184 HP | Good price

- Estate 2.0 TDI 184 FR 5dr

2016
113,000 miles
Trim level: FR
2.0L Diesel
Estate
Manual
184 HP (135 kW)
CO2 emissions: 121 g CO2/km comb.
mpg: 4.6
Details

Good price

£5,800

£6,000

CM94LL

Availability verified

Featured deals

Verified Dealers

Carwow

Used Seat Leon SE Dynamic 150 HP (110 kW) 2022 White Hatchback

(2022) Seat Leon SE Dynamic 150 HP

Fair price

WS11 1SL Staffordshire, Staffordshire

129 g CO2/km comb. - 150 HP (110 kW) - 4.4 Mpg

Carwow

Used Seat Leon SE Dynamic 116 HP (85 kW) 2018 Estate

(2018) Seat Leon SE Dynamic 116 HP

Good price

You save £1,105

112 g CO2/km comb. - 116 HP (85 kW) - 4.2 Mpg

Carwow

Used Seat Arona SE Technology 116 HP (85 kW) 2018 Silver SUV

(2018) Seat Arona SE Technology 116 HP

Fair price

LS27 0TS Morley, West Yorkshire

114 g CO2/km comb. - 116 HP (85 kW) - 4.3 Mpg

Carwow

Used Seat Leon FR 150 HP (110 kW) 2018 Blue Estate

(2018) Seat Leon FR 150 HP

Fair price

CV5 6RN West Midlands, West Midlands

112 g CO2/km comb. - 150 HP (110 kW) - 4.2 Mpg

-5%

1 / 3

Used (2023) Seat Ateca 4Drive 150 HP | Good price

- 2.0 TDI 150 Xperience Lux 5dr

2023
76,189 miles
Trim level: 4Drive
2.0L Diesel
SUV
Automatic
150 HP (110 kW)
CO2 emissions: 157 g CO2/km comb.
mpg: 6
Details

Good price

£14,798

£15,663

E6 5LU Greater London, London

Availability verified

-6%

1 / 3

Used (2023) Seat Ateca Xperience 150 HP | Good price

- 2.0 TDI 150 Xperience 5dr

2023
40,613 miles
Trim level: Xperience
2.0L Diesel
SUV
Automatic
150 HP (110 kW)
CO2 emissions: 140 g CO2/km comb.
mpg: 5.2
Details

Good price

£17,249

£18,507

NN12 West Northamptonshire, Northamptonshire

Availability verified

-2%

1 / 4

Used (2019) Seat Leon SE Dynamic 116 HP | Good price

- Estate 1.6 TDI SE Dynamic [EZ]

2019
99,438 miles
Trim level: SE Dynamic
1.6L Diesel
Estate
Manual
116 HP (85 kW)
CO2 emissions: 111 g CO2/km comb.
mpg: 5.1
Details

Good price

£6,995

£7,195

LN12JW

Availability verified

1 / 4

Used (2020) Seat Tarraco 4Drive 200 HP | Super price

DIESEL ESTATE 2.0 TDI SE Techn

2020
49,640 miles
Trim level: 4Drive
2.0L Diesel
SUV
Automatic
200 HP (147 kW)
CO2 emissions: 187 g CO2/km comb.
mpg: 50.4
Details

Super price

£18,199

£17,999

CW7 3AL Cheshire West And Chester, Cheshire

Availability verified

-9%

1 / 4

Used (2023) Seat Ateca FR 150 HP | Good price

- 2.0 TDI 150 FR 5dr DSG

2023
82,082 miles
Trim level: FR
2.0L Diesel
SUV
Automatic
150 HP (110 kW)
CO2 emissions: 140 g CO2/km comb.
mpg: 5.2
Details

Good price

£13,476

£14,876

LN5 8NU Lincolnshire, Lincolnshire

Availability verified

-1%

1 / 3

Used (2023) Seat Ateca FR Sport 150 HP | Good price

- 2.0 TDI 150 FR Sport 5dr DSG

2023
50,870 miles
Trim level: FR Sport
2.0L Diesel
SUV
Automatic
150 HP (110 kW)
CO2 emissions: 142 g CO2/km comb.
mpg: 5.2
Details

Good price

£16,799

£16,999

CW7 Cheshire West And Chester, Cheshire

Availability verified

Featured deals

Verified Dealers

Carwow

Used Seat Arona SE Technology 116 HP (85 kW) 2019 Black SUV

(2019) Seat Arona SE Technology 116 HP

Fair price

GL10 2BJ Gloucestershire, Gloucestershire

114 g CO2/km comb. - 116 HP (85 kW) - 4.1 Mpg

Carwow

Used Seat Leon FR 184 HP (135 kW) 2016 Estate

(2016) Seat Leon FR 184 HP

Fair price

Estimated price £8,862

NE12 9SW Longbenton, Tyne And Wear

125 g CO2/km comb. - 184 HP (135 kW) - 4.8 Mpg

Carwow

Used Seat Leon SE Dynamic 116 HP (85 kW) 2019 Hatchback

(2019) Seat Leon SE Dynamic 116 HP

Fair price

06082 Enfield, Hertfordshire

150 g CO2/km comb. - 116 HP (85 kW) - 5.1 Mpg

Carwow

Used Seat Leon SE Dynamic 116 HP (85 kW) 2019 Estate

(2019) Seat Leon SE Dynamic 116 HP

Good price

You save £1,005

107 g CO2/km comb. - 116 HP (85 kW) - 5.1 Mpg

-3%

1 / 4

Used (2023) Seat Ateca 4Drive 150 HP | Super price

- 2.0 TDI 150 FR 5dr DSG 4Driv

2023
20,607 miles
Trim level: 4Drive
2.0L Diesel
SUV
Automatic
150 HP (110 kW)
CO2 emissions: 155 g CO2/km comb.
mpg: 5.9
Details

Super price

£18,365

£19,000

GU153DT

Availability verified

-3%

1 / 4

Used (2022) Seat Leon SE Dynamic 150 HP | Good price

2022 | 2.0 TDI SE Dynamic Euro 6

2022
26,214 miles
Trim level: SE Dynamic
2.0L Diesel
Hatchback
Manual
150 HP (110 kW)
CO2 emissions: 129 g CO2/km comb.
mpg: 4.4
Details

Good price

£14,707

£15,200

PE1 5XL Peterborough, Cambridgeshire

Availability verified

-9%

1 / 4

Used (2022) Seat Ateca Xperience Lux 116 HP | Super price

2022 | 2.0 TDI XPERIENCE Lux Euro

2022
21,838 miles
Trim level: Xperience Lux
2.0L Diesel
SUV
Manual
116 HP (85 kW)
CO2 emissions: 137 g CO2/km comb.
mpg: 5.2
Details

Super price

£17,800

£19,600

EN8 8DY Waltham Cross, Hertfordshire

Availability verified

-8%

1 / 4

Used (2022) Seat Ateca 4Drive 150 HP | Good price

2.0 TDI 150 Xperience 5dr DSG

2022
21,547 miles
Trim level: 4Drive
2.0L Diesel
SUV
Automatic
150 HP (110 kW)
CO2 emissions: 161 g CO2/km comb.
mpg: 5.9
Details

Good price

£19,449

£21,349

WF10 5HX West Yorkshire, West Yorkshire

Availability verified

1 / 4

Used (2019) Seat Tarraco 4Drive 150 HP | Good price

2.0 TDI Xcellence 5dr DSG

2019
20,700 miles
Trim level: 4Drive
2.0L Diesel
SUV
Automatic
150 HP (110 kW)
CO2 emissions: 181 g CO2/km comb.
mpg: 6.8
Details

Good price

£19,999

WF2 9RY West Yorkshire, West Yorkshire

Availability verified

1 / 2

Used (2019) Seat Ateca SE Technology 116 HP | Good price

- 1.6 TDI SE Technology [EZ] 5dr

2019
96,580 miles
Trim level: SE Technology
1.6L Diesel
SUV
Automatic
116 HP (85 kW)
CO2 emissions: 128 g CO2/km comb.
mpg: 5.6
Details

Good price

£8,895

LE10 3DJ Leicestershire, Leicestershire

Availability verified

1 / 1

Used (2020) Seat Arona XCELLENCE Lux 95 HP | Good price

1.6 TDI Xcellence Lux 5dr DSG

2020
45,800 miles
Trim level: XCELLENCE Lux
1.6L Diesel
SUV
Automatic
95 HP (69 kW)
CO2 emissions: 138 g CO2/km comb.
mpg: 5.3
Details

Good price

£11,990

WC1E 7DP Greater London, London

Availability verified

Used (2020) Seat Tarraco 4Drive 150 HP | Good price

- 2.0 TDI Xcellence 5dr DSG

2020
44,645 miles
Trim level: 4Drive
2.0L Diesel
SUV
Automatic
150 HP (110 kW)
CO2 emissions: 178 g CO2/km comb.
mpg: 6.9
Details

Good price

£18,480

WC1E 7DP Greater London, London

Availability verified

1 / 1

Used (2018) Seat Leon SE Dynamic 116 HP | Good price

- Estate 1.6 TDI SE Dynamic

2018
60,101 miles
Trim level: SE Dynamic
1.6L Diesel
Estate
Automatic
116 HP (85 kW)
CO2 emissions: 112 g CO2/km comb.
mpg: 4.2
Details

Good price

£8,995

S601TU

Availability verified

1 / 4

Used (2019) Seat Leon SE Dynamic 116 HP | Good price

- Estate 1.6 TDI SE Dynamic [EZ]

2019
107,500 miles
Trim level: SE Dynamic
1.6L Diesel
Estate
Automatic
116 HP (85 kW)
CO2 emissions: 107 g CO2/km comb.
mpg: 5.1
Details

Good price

£6,995

HP189BW

Availability verified

Featured deals

Verified Dealers

Carwow

Used Seat Ateca FR 150 HP (110 kW) 2023 SUV

(2023) Seat Ateca FR 150 HP

Good price

You save £2,024

LN5 8NU Lincolnshire, Lincolnshire

140 g CO2/km comb. - 150 HP (110 kW) - 5.2 Mpg

Carwow

Used Seat Alhambra XCELLENCE 150 HP (110 kW) 2018 MPV

(2018) Seat Alhambra XCELLENCE 150 HP

Fair price

Estimated price £12,893

Ayrshire, Ayrshire And Arran

136 g CO2/km comb. - 150 HP (110 kW) - 5.2 Mpg

Carwow

Used Seat Ateca 4Drive 150 HP (110 kW) 2023 SUV

(2023) Seat Ateca 4Drive 150 HP

Good price

You save £2,202

E6 5LU Greater London, London

157 g CO2/km comb. - 150 HP (110 kW) - 6.0 Mpg

Carwow

Used Seat Leon FR 184 HP (135 kW) 2017 Black Hatchback

(2017) Seat Leon FR 184 HP

Fair price

Estimated price £11,295

CW7 3AL Cheshire West And Chester, Cheshire

120 g CO2/km comb. - 184 HP (135 kW) - 61.4 Mpg

-3%

1 / 2

Used (2023) Seat Ateca SE 116 HP | Good price

- 2.0 TDI SE 5dr

2023
76,800 miles
Trim level: SE
2.0L Diesel
SUV
Manual
116 HP (85 kW)
CO2 emissions: 128 g CO2/km comb.
mpg: 4.9
Details

Good price

£11,795

£12,195

ST3 7PG Rough Close, Staffordshire

Availability verified

1 / 2

Used (2014) Seat Leon SE 105 HP | Good price

1.6 TDI CR SE Hatchback 5dr Diesel

2014
78,000 miles
Trim level: SE
1.6L Diesel
Hatchback
Manual
105 HP (77 kW)
CO2 emissions: 99 g CO2/km comb.
mpg: 3.8
Details

Good price

£5,990

BL2 2BD Greater Manchester, Manchester

Availability verified

-3%

1 / 2

Used (2023) Seat Leon SE Dynamic 116 HP | Good price

-2.0 TDI SE Dynamic 5dr

2023
22,060 miles
Trim level: SE Dynamic
2.0L Diesel
Hatchback
Manual
116 HP (85 kW)
CO2 emissions: 116 g CO2/km comb.
mpg: 4.4
Details

Good price

£14,495

£14,995

LE10 3DJ Leicestershire, Leicestershire

Availability verified

1 / 4

Used (2023) Seat Ateca Xperience Lux 150 HP | Super price

- 2.0 TDI 150 Xperience Lux 5dr

2023
50,417 miles
Trim level: Xperience Lux
2.0L Diesel
SUV
Automatic
150 HP (110 kW)
CO2 emissions: 142 g CO2/km comb.
mpg: 5.3
Details

Super price

£17,000

WS111SL

Availability verified

-6%

1 / 4

Used (2019) Seat Tarraco 4Drive 190 HP | Good price

2.0 TDI XCELLENCE First Edition

2019
42,837 miles
Trim level: 4Drive
2.0L Diesel
SUV
Automatic
190 HP (139 kW)
CO2 emissions: 183 g CO2/km comb.
mpg: 7
Details

Good price

£18,275

£19,599

Motors.co.uk

MK1 1BU Bletchley, Buckinghamshire

Featured deals

Verified Dealers

Carwow

Used Seat Ateca 4Drive 190 HP (139 kW) 2018 SUV

(2018) Seat Ateca 4Drive 190 HP

Fair price

Estimated price £14,320

DE248PU, Derbyshire

142 g CO2/km comb. - 190 HP (139 kW) - 5.5 Mpg

Carwow

Used Seat Ateca FR 150 HP (110 kW) 2020 SUV

(2020) Seat Ateca FR 150 HP

Good price

You save £1,601

CW7 Cheshire West And Chester, Cheshire

148 g CO2/km comb. - 150 HP (110 kW) - 5.6 Mpg

Carwow

Used Seat Ateca SE 116 HP (85 kW) 2023 SUV

(2023) Seat Ateca SE 116 HP

Good price

You save £1,705

ST3 7PG Rough Close, Staffordshire

128 g CO2/km comb. - 116 HP (85 kW) - 4.9 Mpg

Carwow

Used Seat Ateca 4Drive 150 HP (110 kW) 2018 Black SUV

(2018) Seat Ateca 4Drive 150 HP

Fair price

Estimated price £12,262

G3 6ED Glasgow City, Glasgow

134 g CO2/km comb. - 150 HP (110 kW) - 55.0 Mpg

Showing 1 - 25 of 1,178 results

Price checked by AutoUncle

Super price

Good price

Fair price

A bit pricey

Expensive

See Seat

Seat (1000+)