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Mercedes S400 (diesel) • 4 cars with Valuation

Market overview: Diesel Mercedes S400 (August-2026): There are currently 4 used diesel Mercedes S400 cars for sale. Prices range from £28,646 to £55,794, with a median price of £30,745. AutoUncle has identified 2 cars as being offered below market price. The typical selling time for a diesel Mercedes S400 is approximately 19 days, and 50.0% of the listings have recently been reduced in price (Source: AutoUncle market data, August-2026).

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Used Mercedes E400 AMG line 340 HP (250 kW) 2023 Black Sedan

(2023) Mercedes E400 AMG line 340 HP

Fair price

Estimated price £38,205

G46 6AA Giffnock, Renfrewshire

157 g CO2/km comb. - 340 HP (250 kW) - 6.6 Mpg

Carwow

Used Mercedes E400 AMG line 340 HP (250 kW) 2021 Black Cabriolet

(2021) Mercedes E400 AMG line 340 HP

Fair price

Estimated price £31,658

DA13 0AG Kent, Kent

193 g CO2/km comb. - 340 HP (250 kW) - 6.9 Mpg

Carwow

Used Mercedes E400 AMG line 340 HP (250 kW) 2020 Blue Sedan

(2020) Mercedes E400 AMG line 340 HP

Fair price

Estimated price £26,206

OL11 Greater Manchester, Manchester

190 g CO2/km comb. - 340 HP (250 kW) - 7.2 Mpg

Carwow

Used Mercedes E400 AMG line 340 HP (250 kW) 2020 Blue Sedan

(2020) Mercedes E400 AMG line 340 HP

Fair price

OL11 2NQ Greater Manchester, Manchester

190 g CO2/km comb. - 340 HP (250 kW) - 39.2 Mpg

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Used (2018) Mercedes S400 AMG Line Premium 340 HP | Super price

S Class L AMG Line Premium 4dr

2018
33,700 miles
Trim level: AMG Line Premium
2.9L Diesel
Sedan
Automatic
340 HP (250 kW)
Details

Super price

£29,500

Motors.co.uk

RM7 8BU Greater London, London

-5%

1 / 4

Used (2019) Mercedes S400 AMG Line Premium Plus 340 HP | Good price

S Class L AMG Line Premium Plus

2019
70,954 miles
Trim level: AMG Line Premium Plus
2.9L Diesel
Sedan
Automatic
340 HP (250 kW)
38.7 mpg
Details

Good price

£28,495

£30,000

Parkers.co.uk

G81 1LW West Dunbartonshire Council, Dunbartonshire

-3%

1 / 4

Used (2019) Mercedes S400 Executive

S Class L AMG Line Executive/Prem

2019
83,400 miles
Trim level: Executive
2.9L Diesel
Sedan
Automatic
38.7 mpg
Details

£31,990

£32,990

Not evaluated

Parkers.co.uk

UB6 7LA Perivale, London

1 / 3

Used (2022) Mercedes S400 AMG line

S Class 3.0 S Class AMG Line

2022
10,100 miles
Trim level: AMG line
2.9L Diesel
Sedan
Automatic
Details

£59,995

Not evaluated

Motors.co.uk

CF3 2EH Rumney, South Glamorgan

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Used BMW 740L M Sport 320 HP (235 kW) 2019 Sedan

(2019) BMW 740L M Sport 320 HP

Fair price

197 g CO2/km comb. - 320 HP (235 kW) - 7.2 Mpg

Carwow

Used BMW 740L M Sport 320 HP (235 kW) 2018 Black Sedan

(2018) BMW 740L M Sport 320 HP

Good price

You save £2,110

ME17 1ET Ulcombe, Kent

197 g CO2/km comb. - 320 HP (235 kW) - 7.2 Mpg

Carwow

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

(2021) BMW M340 Comfort Edition 340 HP

Good price

You save £1,480

BB1 3NU Lancashire, Lancashire

165 g CO2/km comb. - 340 HP (250 kW) - 6.3 Mpg

Carwow

Used BMW M340 Comfort Edition 340 HP (250 kW) 2023 Grey Sedan

(2023) BMW M340 Comfort Edition 340 HP

Good price

You save £2,110

BD21 4DH West Yorkshire, West Yorkshire

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

Showing 1 - 4 of 4 results

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