(2025) Mercedes 300 used • 18 cars for sale

Featured deals

Carwow

New 2025 Mercedes 300 AMG line Estate | £51,420 (Super price)

Mercedes 300 - GLC4Matic AMG Line Prem [Pan] 5dr 9G-Tronic

Super price

You save £5,880

168 g CO2/km comb. - 258 HP (189 kW) - 7.3 Mpg

Carwow

New 2025 Mercedes 300 AMG line Estate | £50,495 (Super price)

Mercedes 300 - GLC4Matic AMG Line Prem [Pan] 5dr 9G-Tronic

Super price

You save £6,805

PR84PH, Merseyside

168 g CO2/km comb. - 258 HP (189 kW) - 7.3 Mpg

Carwow

Used 2024 Mercedes 300 AMG Line Premium Estate | £47,467 (Super price)

Mercedes 300 GLC4Matic AMG Line Premium 5dr 9G-Tronic Petrol Estate

Super price

You save £4,433

SL15PR, Berkshire

171 g CO2/km comb. - 258 HP (189 kW) - 38.0 Mpg

Carwow

Used 2023 Mercedes 300 AMG line Coupe | £34,650 (Super price)

Mercedes 300 - GLC Coupe4Matic AMG Line 5dr 9G-Tronic

Super price

You save £4,250

CM13BH Westway, Essex

193 g CO2/km comb. - 258 HP (189 kW) - 8.5 Mpg

Price checked by AutoUncle

Super price

Good price

Fair price

A bit pricey

Expensive

A trusted partner of AutoUncle with agreed terms and a signed contract, ensuring you're dealing with a legitimate business.

New (2025) Mercedes 300 AMG line 258 HP | Super price

- GLC4Matic AMG Line Prem [Pan]

258 HP (189 kW)

168 g CO2/km comb.

PR84PH, Merseyside

Super price

You save £6,805

PR84PH, Merseyside

A trusted partner of AutoUncle with agreed terms and a signed contract, ensuring you're dealing with a legitimate business.

New (2025) Mercedes 300 AMG line 258 HP | Super price

- GLC4Matic AMG Line Prem [Pan]

258 HP (189 kW)

168 g CO2/km comb.

Super price

You save £5,880

Used (2025) Mercedes 300 AMG Line Premium Plus 258 HP | Good price

GLC GLC4Matic AMG Line Premium

258 HP (189 kW)

BB1 3HT Blackburn, Lancashire

Good price

You save £2,820

BB1 3HT Blackburn, Lancashire

Visit Motors.co.uk

Used (2025) Mercedes 300 AMG Line Premium 258 HP | Good price

GLC GLC4Matic AMG Line Premium

258 HP (189 kW)

PO3 5FH Portsmouth, Hampshire

Good price

You save £2,205

PO3 5FH Portsmouth, Hampshire

Visit Motors.co.uk

Used (2025) Mercedes 300 AMG Line Premium 258 HP | Super price

GLC4Matic AMG Line Premium 5dr

258 HP (189 kW)

171 g CO2/km comb.

Stratford-Upon-Avon, Warwickshire

Super price

You save £4,310

Stratford-Upon-Avon, Warwickshire

Visit Group1auto.co.uk

Used (2025) Mercedes 300 AMG Line Premium 258 HP | Super price

GLC4Matic AMG Line Premium 5dr

258 HP (189 kW)

171 g CO2/km comb.

Leicester, Leicestershire

Super price

You save £3,810

Leicester, Leicestershire

Visit Group1auto.co.uk

Used (2025) Mercedes 300 AMG Line Premium Plus 258 HP | Fair price

GLC GLC4Matic AMG Line Premium

258 HP (189 kW)

TN9 1TB Tonbridge, Kent

Fair price

Estimated price £54,745

TN9 1TB Tonbridge, Kent

Visit Motors.co.uk

Used (2025) Mercedes 300 AMG Line Premium Plus 258 HP | Fair price

GLC GLC4Matic AMG Line Premium

258 HP (189 kW)

DY8 1ET Stourbridge, West Midlands

Fair price

Estimated price £53,970

DY8 1ET Stourbridge, West Midlands

Visit Motors.co.uk

Used (2025) Mercedes 300 AMG Line Premium Plus 258 HP | Fair price

GLC GLC4Matic AMG Line Premium

258 HP (189 kW)

RH10 9AW Crawley, West Sussex

Fair price

Estimated price £54,193

RH10 9AW Crawley, West Sussex

Visit Motors.co.uk

Used (2025) Mercedes 300 AMG Line Premium Plus 258 HP | Fair price

GLC GLC4Matic AMG Line Premium

258 HP (189 kW)

BN41 1DY Brighton, East Sussex

Fair price

BN41 1DY Brighton, East Sussex

Visit Motors.co.uk

Featured deals

Carwow

Used 2023 Mercedes 300 AMG Line Premium Coupe | £35,240 (Fair price)

Mercedes 300 - GLC Coupe4Matic AMG Line Premium 5dr 9G-Tronic

Fair price

Estimated price £34,698

BR67QR Kent, London

199 g CO2/km comb. - 258 HP (189 kW) - 8.5 Mpg

Carwow

Used 2023 Mercedes 300 AMG Line Premium Coupe | £37,666 (Fair price)

Mercedes 300 GLC Coupe GLC4Matic AMG Line Premium 5dr 9G-Tronic Petrol Estate

Fair price

Estimated price £37,524

SL15PR, Berkshire

199 g CO2/km comb. - 258 HP (189 kW) - 32.0 Mpg

Carwow

Used 2023 Mercedes 300 AMG line Coupe | £37,950 (Fair price)

Mercedes 300 - GLC Coupe4Matic AMG Line Prem Plus 5dr 9G-Tronic

Fair price

Estimated price £37,892

HA36AG, Hertfordshire

200 g CO2/km comb. - 258 HP (189 kW) - 8.5 Mpg

Carwow

Used 2023 Mercedes 300 AMG line Coupe | £26,900 (Super price)

Mercedes 300 - GLC Coupe4Matic AMG Line 5dr 9G-Tronic

Super price

You save £5,200

WS111SL, Staffordshire

193 g CO2/km comb. - 258 HP (189 kW) - 8.5 Mpg

Used (2025) Mercedes 300 AMG Line Premium 258 HP | Expensive

GLC Coupe GLC4Matic AMG Line

258 HP (189 kW)

170 g CO2/km comb.

Nottingham, Nottinghamshire

Expensive

Estimated price £49,009

Nottingham, Nottinghamshire

Visit Group1auto.co.uk

Used (2025) Mercedes 300 AMG line 258 HP | Not evaluated

GLC4Matic AMG Line 5dr 9G-Tronic -

258 HP (189 kW)

167 g CO2/km comb.

Cambridge, Cambridgeshire

Cambridge, Cambridgeshire

Visit Group1auto.co.uk

Featured deals

Carwow

Used 2023 Mercedes 300 AMG Line Premium Coupe | £31,995 (Fair price)

Mercedes 300 - GLC Coupe4Matic AMG Line Premium 5dr 9G-Tronic

Fair price

BR35JS Bromley, London

199 g CO2/km comb. - 258 HP (189 kW) - 8.5 Mpg

Carwow

Used 2025 Porsche 718 Boxster Cabriolet | £58,990 (Super price)

Porsche 718 Boxster - 2.5 S 2dr PDK

Super price

You save £3,910

218 g CO2/km comb. - 349 HP (256 kW) - 9.6 Mpg

Carwow

Photos coming soon

Photos coming soon

BMW 230 - 2 Series Coupe i M Sport 2dr Step Auto [Pro Pack]

Fair price

Estimated price £45,539

PE217PQ Boston, Lincolnshire

153 g CO2/km comb. - 245 HP (180 kW) - 6.6 Mpg

Carwow

Photos coming soon

Photos coming soon

BMW 230 - 2 Series Coupe i M Sport 2dr Step Auto

Fair price

PO35FF Portsmouth, Hampshire

151 g CO2/km comb. - 245 HP (180 kW) - 6.6 Mpg

Price checked by AutoUncle

Super price

Good price

Fair price

A bit pricey

Expensive

Other years for Mercedes 300