Used Seat diesel • 1,234 listings compared on price

Market overview: Market overview for used Seat diesel (June-2026): AutoUncle has price-compared 1,234 used Seat diesel vehicles from 42 dealer sites. The three most popular models are currently Seat Leon, Seat Ateca, Seat Tarraco, with prices ranging from £2,495 to £20,995 and a median price of £8,999. The most common body type is SUV. AutoUncle has identified 224 cars currently listed below expected market value, and 40.9% of listings have had a price reduction in the last 30 days (largest saving: £3,500). The average selling time for a used Seat diesel is 27 days. (Source: AutoUncle market data, June-2026)

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Used Seat Arona XCELLENCE Lux 95 HP (69 kW) 2020 Blue SUV

(2020) Seat Arona XCELLENCE Lux 95 HP

Good price

You save £1,210

WC1E 7DP Greater London, London

138 g CO2/km comb. - 95 HP (69 kW) - 5.3 Mpg

Carwow

Used Seat Arona FR 116 HP (85 kW) 2018 SUV

(2018) Seat Arona FR 116 HP

Fair price

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

Carwow

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

(2019) Seat Ateca SE Technology 116 HP

Fair price

Estimated price £10,704

PE134AX, Cambridgeshire

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

Carwow

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

(2019) Seat Arona SE Technology 116 HP

Fair price

CB22 6SE Foxton, Cambridgeshire

114 g CO2/km comb. - 116 HP (85 kW) - 50.4 Mpg

Price checked by AutoUncle

Super price

Good price

Fair price

A bit pricey

Expensive

-1%

1 / 4

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

- 1.6 TDI SE Dynamic Technology

2018
62,292 miles
Trim level: SE Dynamic
1.6L Diesel
Hatchback
Manual
116 HP (85 kW)
CO2 emissions: 106 g CO2/km comb.
4 mpg
Details

Good price

£8,060

£8,173

CB22 6SE Foxton, Cambridgeshire

Availability verified

1 / 4

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

- Estate 1.6 TDI SE Dynamic

2018
78,885 miles
Trim level: SE Dynamic
1.6L Diesel
Estate
Manual
116 HP (85 kW)
CO2 emissions: 109 g CO2/km comb.
4.1 mpg
Details

Good price

£7,425

£7,195

PR25PD

Availability verified

-8%

1 / 3

Used (2019) Seat Ateca SE Technology 150 HP | Good price

2.0 TDI SE Technology [EZ] 5dr

2019
32,520 miles
Trim level: SE Technology
2.0L Diesel
SUV
Automatic
150 HP (110 kW)
CO2 emissions: 116 g CO2/km comb.
4.5 mpg
Details

Good price

£12,753

£13,929

BL2 2BL Greater Manchester, Manchester

Availability verified

-10%

1 / 4

Used (2020) Seat Ateca XCELLENCE Lux 150 HP | Super price

- 2.0 TDI Xcellence Lux [EZ] 5dr

2020
41,368 miles
Trim level: XCELLENCE Lux
2.0L Diesel
SUV
Automatic
150 HP (110 kW)
CO2 emissions: 156 g CO2/km comb.
6 mpg
Details

Super price

£15,299

£16,999

RG30 1JG Berkshire, Berkshire

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Used Seat Ateca XCELLENCE 116 HP (85 kW) 2020 Red SUV

(2020) Seat Ateca XCELLENCE 116 HP

Super price

You save £2,101

CW7 3AL Cheshire West And Chester, Cheshire

146 g CO2/km comb. - 116 HP (85 kW) - 61.4 Mpg

Carwow

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

(2018) Seat Ateca 4Drive 150 HP

Fair price

134 g CO2/km comb. - 150 HP (110 kW) - 5.1 Mpg

Carwow

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

(2018) Seat Ateca 4Drive 150 HP

Fair price

EX11 1RE Devon, Devon

134 g CO2/km comb. - 150 HP (110 kW) - 5.1 Mpg

Carwow

Used Seat Ateca SE Technology 150 HP (110 kW) 2020 SUV

(2020) Seat Ateca SE Technology 150 HP

Fair price

KA8 8DP Ayrshire, Ayrshire And Arran

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

-10%

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Used (2020) Seat Ateca XCELLENCE 116 HP | Super price

DIESEL ESTATE 1.6 TDI Xcellence

2020
49,281 miles
Trim level: XCELLENCE
1.6L Diesel
SUV
Manual
116 HP (85 kW)
CO2 emissions: 146 g CO2/km comb.
61.4 mpg
Details

Super price

£11,599

£12,899

CW7 3AL Cheshire West And Chester, Cheshire

Availability verified

-3%

1 / 4

Used (2022) Seat Tarraco SE Technology 150 HP | Good price

DIESEL ESTATE 2.0 TDI SE Techn

2022
33,774 miles
Trim level: SE Technology
2.0L Diesel
SUV
Manual
150 HP (110 kW)
CO2 emissions: 144 g CO2/km comb.
57.6 mpg
Details

Good price

£18,799

£19,399

CW7 Cheshire West And Chester, Cheshire

Availability verified

-9%

1 / 4

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

- 2.0 TDI Xcellence 5dr DSG

2020
32,633 miles
Trim level: 4Drive
2.0L Diesel
SUV
Automatic
150 HP (110 kW)
CO2 emissions: 181 g CO2/km comb.
6.9 mpg
Details

Good price

£17,960

£19,799

S817AE

Availability verified

-7%

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.
5.1 mpg
Details

Good price

£6,450

£6,995

HP189BW

Availability verified

New

1 / 2

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

2.0 TDI SE Technology [EZ] 5dr DSG

2019
55,820 miles
Trim level: 4Drive
2.0L Diesel
SUV
Automatic
150 HP (110 kW)
CO2 emissions: 170 g CO2/km comb.
6.4 mpg
Details

Good price

£12,395

LE10 3DJ Leicestershire, Leicestershire

Availability verified

-10%

1 / 4

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

2.0 TDI 150 Xperience Lux 5dr

Mar 2023
29,153 miles
Trim level: Xperience Lux
2.0L Diesel
SUV
Automatic
150 HP (110 kW)
CO2 emissions: 142 g CO2/km comb.
6.1 mpg
Details

Good price

£19,127

£21,395

WC1E 7DP Greater London, London

Availability verified

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

(2018) Seat Leon SE Dynamic 116 HP

Good price

You save £1,240

CB22 6SE Foxton, Cambridgeshire

106 g CO2/km comb. - 116 HP (85 kW) - 4.0 Mpg

Carwow

Used Seat Leon XCELLENCE 150 HP (110 kW) 2016 Black Hatchback

(2016) Seat Leon XCELLENCE 150 HP

Fair price

Estimated price £9,863

CW7 3AL Cheshire West And Chester, Cheshire

112 g CO2/km comb. - 150 HP (110 kW) - 64.2 Mpg

Carwow

Used Seat Leon FR 150 HP (110 kW) 2017 Black Hatchback

(2017) Seat Leon FR 150 HP

Fair price

Estimated price £8,493

LE16 7TB East Langton, Leicestershire

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

Carwow

Used Seat Arona XCELLENCE 95 HP (69 kW) 2018 Grey SUV

(2018) Seat Arona XCELLENCE 95 HP

Fair price

CW7 Cheshire West And Chester, Cheshire

115 g CO2/km comb. - 95 HP (69 kW) - 67.3 Mpg

-14%

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

2.0 TDI 150 Xperience 5dr DSG

2022
21,560 miles
Trim level: 4Drive
2.0L Diesel
SUV
Automatic
150 HP (110 kW)
CO2 emissions: 155 g CO2/km comb.
6.1 mpg
Details

Super price

£16,399

£19,249

CV4 9DU West Midlands, West Midlands

Availability verified

-2%

1 / 4

Used (2018) Seat Ateca 4Drive 150 HP | Good price

2.0 TDI SE 5dr 4Drive

2018
109,850 miles
Trim level: 4Drive
2.0L Diesel
SUV
Manual
150 HP (110 kW)
CO2 emissions: 133 g CO2/km comb.
4.9 mpg
Details

Good price

£7,595

£7,795

WA3 1AB Lowton, Manchester

Availability verified

-7%

1 / 3

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

- Estate 1.6 TDI SE Dynamic

2018
91,489 miles
Trim level: SE Dynamic
1.6L Diesel
Estate
Manual
116 HP (85 kW)
CO2 emissions: 109 g CO2/km comb.
4.1 mpg
Details

Good price

£6,490

£6,990

PE216QX

Availability verified

-13%

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.
5.2 mpg
Details

Good price

£16,012

£18,507

PO2 9QZ Hilsea, Hampshire

Availability verified

-11%

1 / 3

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

- Estate 2.0 TDI SE Dynamic

2023
63,748 miles
Trim level: SE Dynamic
2.0L Diesel
Estate
Manual
116 HP (85 kW)
CO2 emissions: 117 g CO2/km comb.
4.5 mpg
Details

Good price

£11,250

£12,700

WD3 3RT Croxley Green, Hertfordshire

Availability verified

-12%

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.
6 mpg
Details

Good price

£13,744

£15,663

E6 5LU Greater London, London

Availability verified

1 / 4

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

- 2.0 TDI SE Technology 5dr DSG

2020
17,863 miles
Trim level: 4Drive
2.0L Diesel
SUV
Automatic
150 HP (110 kW)
CO2 emissions: 172 g CO2/km comb.
6.6 mpg
Details

Good price

£19,400

WD3 3RT Croxley Green, Hertfordshire

Availability verified

1 / 4

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

- 2.0 TDI FR [EZ] 5dr DSG

2020
56,122 miles
Trim level: FR
2.0L Diesel
SUV
Automatic
150 HP (110 kW)
CO2 emissions: 153 g CO2/km comb.
5.8 mpg
Details

Good price

£13,490

RG75JF

Availability verified

1 / 4

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

- 2.0 TDI 150 FR 5dr

2023
29,470 miles
Trim level: FR
2.0L Diesel
SUV
Manual
150 HP (110 kW)
CO2 emissions: 136 g CO2/km comb.
5 mpg
Details

Super price

£16,000

CV346UL

Availability verified

-2%

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.
5.3 mpg
Details

Good price

£11,690

£11,990

WC1E 7DP Greater London, London

Availability verified

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

(2019) Seat Arona SE Technology 116 HP

Good price

You save £1,205

GL10 2BJ Gloucestershire, Gloucestershire

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

Carwow

Used Seat Ateca SE Technology 150 HP (110 kW) 2020 SUV

(2020) Seat Ateca SE Technology 150 HP

Fair price

Estimated price £10,482

LE10 3DJ Leicestershire, Leicestershire

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

Carwow

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

(2016) Seat Leon FR 184 HP

Fair price

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

Carwow

Used Seat Arona XCELLENCE Lux 115 HP (84 kW) 2020 White SUV

(2020) Seat Arona XCELLENCE Lux 115 HP

Fair price

WD3 3RT Croxley Green, Hertfordshire

129 g CO2/km comb. - 115 HP (84 kW) - 4.9 Mpg

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1 / 4

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

1.6 TDI SE Technology Lux

2019
28,625 miles
Trim level: SE Technology
1.6L Diesel
SUV
Manual
116 HP (85 kW)
CO2 emissions: 106 g CO2/km comb.
4.1 mpg
Details

Good price

£10,495

£10,995

GL10 2BJ Gloucestershire, Gloucestershire

Availability verified

New

1 / 3

Used (2020) Seat Ateca FR Sport 150 HP | Super price

- 2.0 TDI FR Sport [EZ] 5dr

2020
33,380 miles
Trim level: FR Sport
2.0L Diesel
SUV
Automatic
150 HP (110 kW)
CO2 emissions: 156 g CO2/km comb.
5.9 mpg
Details

Super price

£15,199

M417TB Urmston, Manchester

Availability verified

-5%

1 / 3

Used (2018) Seat Leon SE Technology | Good price

1.6 TDI SE Technology 5dr DSG

2018
69,000 miles
Trim level: SE Technology
1.6L Diesel
Hatchback
Automatic
Details

Good price

£8,495

£8,995

Motors.co.uk

B25 8LT Yardley, West Midlands

-13%

1 / 2

Used (2016) Seat Ateca 4Drive 190 HP | Good price

2.0 TDI Xcellence 5dr DSG

2016
83,700 miles
Trim level: 4Drive
2.0L Diesel
SUV
Automatic
190 HP (139 kW)
CO2 emissions: 131 g CO2/km comb.
5 mpg
Details

Good price

£9,494

£10,994

Motors.co.uk

OL8 4PQ Greater Manchester, Manchester

-14%

1 / 4

Used (2016) Seat Alhambra 150 HP | Super price

(2016/65)2.0 TDI CR S (150bhp) 5d

2016
117,000 miles
2.0L Diesel
MPV
Automatic
150 HP (110 kW)
CO2 emissions: 138 g CO2/km comb.
54 mpg
Details

Super price

£5,995

£6,995

Motors.co.uk

S64 5TH Rawmarsh, South Yorkshire

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

(2016) Seat Leon FR 184 HP

Fair price

120 g CO2/km comb. - 184 HP (135 kW) - 4.7 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 Arona SE Technology 116 HP (85 kW) 2018 Silver SUV

(2018) Seat Arona SE Technology 116 HP

Fair price

CW7 Cheshire West And Chester, Cheshire

114 g CO2/km comb. - 116 HP (85 kW) - 68.9 Mpg

Carwow

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

(2018) Seat Arona SE Technology 116 HP

Fair price

WC1E 7DP Greater London, London

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

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All models for Seat with diesel

Altea (18)
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Ibiza (54)
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Tarraco (123)
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