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Mercedes SLK250 (petrol) • 14 cars with Valuation

Market overview: Petrol Mercedes SLK250 (July-2026): There are currently 14 used petrol Mercedes SLK250 cars for sale. Prices range from £6,910 to £11,165, with a median price of £8,891. AutoUncle has identified 1 cars as being offered below market price. The typical selling time for a petrol Mercedes SLK250 is approximately 57 days, and 21.4% of the listings have recently been reduced in price (Source: AutoUncle market data, July-2026).

Average sales data

Avg. price

£8,836

Cars found

Depreciation

Avg. sale time

62 days

Price checked by AutoUncle

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Carwow

Used Mercedes C180 Sport Edition 156 HP (114 kW) 2014 White Coupe

Petrol

(2014) Mercedes C180 Sport Edition 156 HP

£6,495

Fair price

Estimated price £6,085

MK17 0PP Little Horwood, Buckinghamshire

147 g CO2/km comb. - 156 HP (114 kW) - 6.3 Mpg

Price checked by AutoUncle

Super price

Good price

Fair price

A bit pricey

Expensive

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-10%

1 / 4

Used (2011) Mercedes SLK250 AMG Edition 1 | Super price

SLK BlueEFFICIENCY Edition 125 2dr

2011
53,000 miles
Trim level: AMG Edition 1
1.8L Petrol
Cabriolet
Automatic
42 mpg
Details

Super price

£6,999

£7,799

Parkers.co.uk

UB9 4DA Denham, Buckinghamshire

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-2%

1 / 4

Used (2012) Mercedes SLK250 Sport Edition | Fair price

SLK 1.8 AMG Sport Edition 125

2012
49,619 miles
Trim level: Sport Edition
1.8L Petrol
Cabriolet
Automatic
Details

Fair price

£9,850

£10,150

Motors.co.uk

SN2 8ER Swindon, Wiltshire

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1 / 4

Used (2012) Mercedes SLK250 AMG | Fair price

SLK 1.8 BlueEfficiency AMG Sport

2012
32,000 miles
Trim level: AMG
1.8L Petrol
Cabriolet
Automatic
Details

Fair price

£11,490

Motors.co.uk

HP5 3PF Buckinghamshire, Buckinghamshire

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1 / 4

Used (2012) Mercedes SLK250 AMG | Fair price

SLK BlueEFFICIENCY AMG Sport 2dr

2012
63,000 miles
Trim level: AMG
1.8L Petrol
Cabriolet
Automatic
Details

Fair price

£9,449

Motors.co.uk

RH7 6LG Blindley Heath, Surrey

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Petrol

(2014) Mercedes C180 Sport Edition 156 HP

£6,495

Fair price

Estimated price £6,085

MK17 0PP Little Horwood, Buckinghamshire

147 g CO2/km comb. - 156 HP (114 kW) - 6.3 Mpg

1 / 4

Used (2011) Mercedes SLK250 | Fair price

SLK BlueEFFICIENCY 2dr Tip

2011
77,950 miles
1.8L Petrol
Cabriolet
Automatic
Details

Fair price

£7,450

Motors.co.uk

TN26 3SA Woodchurch, Kent

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-5%

1 / 4

Used (2011) Mercedes SLK250 AMG | Fair price

SLK 1.8 BlueEfficiency AMG

2011
73,000 miles
Trim level: AMG
1.8L Petrol
Cabriolet
Automatic
Details

Fair price

£7,995

£8,495

Motors.co.uk

WD7 7HU Hertfordshire, Hertfordshire

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1 / 4

Used (2011) Mercedes SLK250 AMG | Fair price

SLKBlueEFF AMG Sport Ed 125 2dr

2011
97,800 miles
Trim level: AMG
1.8L Petrol
Cabriolet
Automatic
42 mpg
Details

Fair price

£6,745

£6,495

Parkers.co.uk

BB1 7SB Blackburn With Darwen, Lancashire

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1 / 4

Used (2012) Mercedes SLK250 Sport Edition | Fair price

SLK 1.8 BlueEfficiency AMG Sport

2012
51,000 miles
Trim level: Sport Edition
1.8L Petrol
Cabriolet
Automatic
Details

Fair price

£10,495

£9,995

Motors.co.uk

MK17 0PP Little Horwood, Buckinghamshire

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1 / 4

Used (2012) Mercedes SLK250 | Fair price

SLK BlueEFFICIENCY 2dr Tip

2012
54,000 miles
1.8L Petrol
Cabriolet
Automatic
Details

Fair price

£8,987

Motors.co.uk

WS7 0HQ Burntwood Green, Staffordshire

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1 / 4

Used (2011) Mercedes SLK250 Sport Edition | Fair price

SLK 1.8 BlueEfficiency AMG Sport

2011
76,000 miles
Trim level: Sport Edition
1.8L Petrol
Cabriolet
Automatic
Details

Fair price

£7,495

Motors.co.uk

GL4 3BS Gloucestershire, Gloucestershire

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Petrol

(2014) Mercedes C180 Sport Edition 156 HP

£6,495

Fair price

Estimated price £6,085

MK17 0PP Little Horwood, Buckinghamshire

147 g CO2/km comb. - 156 HP (114 kW) - 6.3 Mpg

1 / 4

Used (2012) Mercedes SLK250 Sport Edition | Fair price

SLK 1.8 BlueEfficiency AMG Sport

2012
68,275 miles
Trim level: Sport Edition
1.8L Petrol
Cabriolet
Automatic
42 mpg
Details

Fair price

£8,795

Motors.co.uk

WA1 3RS Warrington, Cheshire

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1 / 4

Used (2012) Mercedes SLK250 AMG | Fair price

SLK BlueEFF AMG Sport Ed 125 2dr

2012
53,163 miles
Trim level: AMG
1.8L Petrol
Cabriolet
Automatic
Details

Fair price

£10,495

Motors.co.uk

NP13 2LN Aberbeeg, Gwent

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1 / 4

Used (2012) Mercedes SLK250 AMG 204 HP | Rare vehicle

SLK BlueEFFICIENCY AMG Sport 2dr

2012
67,332 miles
Trim level: AMG
1.8L Petrol
Cabriolet
Automatic
204 HP (150 kW)
CO2 emissions: 153 g CO2/km comb.
42.8 mpg
Details

£8,998

Rare vehicle

Dealer

CH43 0SE Birkenhead, Merseyside

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1 / 4

Used (2012) Mercedes SLK250 AMG 204 HP | Rare vehicle

SLK BlueEFFICIENCY AMG Sport Tip

2012
65,000 miles
Trim level: AMG
1.8L Petrol
Cabriolet
Automatic
204 HP (150 kW)
Details

£8,470

Rare vehicle

Motors.co.uk

DN4 6QT South Yorkshire, South Yorkshire

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Used Mini Cooper S Cabriolet Sport 192 HP (141 kW) 2019 Black Cabriolet

Petrol

(2019) Mini Cooper S Cabriolet Sport 192 HP

£16,027

Fair price

Estimated price £15,896

RH15EP

131 g CO2/km comb. - 192 HP (141 kW) - 6.4 Mpg

Carwow

Used BMW 318 M Sport 136 HP (100 kW) 2019 Estate

Petrol

(2019) BMW 318 M Sport 136 HP

£8,250

Super price

You save £2,850

EH259RS

182 g CO2/km comb. - 136 HP (100 kW) - 7.7 Mpg

Carwow

Used Mini Cooper S Coupé 184 HP (135 kW) 2013 Coupe

Petrol

(2013) Mini Cooper S Coupé 184 HP

£5,374

Fair price

Estimated price £4,856

BD164JH

143 g CO2/km comb. - 184 HP (135 kW) - 6.1 Mpg

Carwow

Used BMW 318 Performance 143 HP (105 kW) 2011 Sedan

Petrol

(2011) BMW 318 Performance 143 HP

£3,493

Fair price

You save £307

MK443LH

146 g CO2/km comb. - 143 HP (105 kW) - 6.3 Mpg

Showing 1 - 14 of 14 results

How much does a used Mercedes SLK250 cost? Prices, ratings and depreciation by model year

How much does a used Mercedes SLK250 cost? Prices, ratings and depreciation by model year
Model year	Price range*	Avg. Price	Median Mileage	Depreciation (12 mth.)	Cars for sale
2016 Mercedes SLK250	£8,571 - £13,932	£10,735	71,900 miles	-	< 10
2015 Mercedes SLK250	£7,270 - £13,790	£9,909	69,700 miles	-£240	23
2014 Mercedes SLK250	£6,800 - £13,966	£9,465	70,900 miles	-£600	28
2013 Mercedes SLK250	£6,297 - £9,975	£7,869	80,900 miles	-£360	30
2012 Mercedes SLK250	£5,366 - £10,891	£7,743	66,600 miles	-£220	25
2011 Mercedes SLK250	£6,796 - £7,895	£7,337	76,000 miles	-	< 10

*The 'Price range' column shows the prices at the 5th and 95th percentiles of cars in the current market

The data is based on the cars currently listed on AutoUncle

Last updated: 16 July 2026

Comparison of Mercedes SLK250 variants and prices

Below you can compare prices and depreciation for the 2 most popular Mercedes SLK250 variants. The table is updated daily with data from the market in United Kingdom.

Comparison of Mercedes SLK250 variants and prices
Variant	Price range*	Avg. Price	Median Mileage	Depreciation (12 mth.)	Cars for sale
Mercedes SLK250 Sport Edition	£7,690 - £10,398	£9,159	59,600 miles	-	< 10
💰 The budget choice Mercedes SLK250 AMG	£6,190 - £13,018	£8,910	73,800 miles	-£340	93

*The 'Price range' column shows the prices at the 5th and 95th percentiles of cars in the current market

The data is based on the cars currently listed on AutoUncle

Last updated: 16 July 2026

Which variant should you choose?

💰 The budget choice

The AMG is the cheapest entry point with an average price of £8,910.

🏆 The most popular

There are the most AMG for sale right now (93), which gives you the most options to choose from.

📈 The best value

The AMG has held its price stable with minimal loss in value over the past year (-£340).

Price checked by AutoUncle

Super price

Good price

Fair price

A bit pricey

Expensive

See Mercedes SLK250

Mercedes SLK250 (115)

Price Information

Mercedes SLK250

Price rating	Average price
Super	£6,999
Fair	£9,022

Price valuation FAQs

The price valuation for each vehicle is calculated by statistically comparing the car and its price to similar cars currently for sale. AutoUncle updates valuations regularly to make sure that the comparisons shown are as accurate and up-to-date as possible, and take into account market trends as well.

Our price comparisons takes more than 100 potential factors into consideration, for example:

Make

Model

Year

Transmission

Equipment

This allows us to determine its market value and evaluate the fairness of the price and rate it in one of AutoUncle’s five price rating categories.

You can find the result on all car listings. (visual)

Mercedes SLK250 (petrol) • 14 cars with Valuation

Used (2011) Mercedes SLK250 AMG Edition 1 | Super price

Used (2012) Mercedes SLK250 Sport Edition | Fair price

Used (2012) Mercedes SLK250 AMG | Fair price

Used (2012) Mercedes SLK250 AMG | Fair price

Used (2011) Mercedes SLK250 | Fair price

Used (2011) Mercedes SLK250 AMG | Fair price

Used (2011) Mercedes SLK250 AMG | Fair price

Used (2012) Mercedes SLK250 Sport Edition | Fair price

Used (2012) Mercedes SLK250 | Fair price

Used (2011) Mercedes SLK250 Sport Edition | Fair price

Used (2012) Mercedes SLK250 Sport Edition | Fair price

Used (2012) Mercedes SLK250 AMG | Fair price

Used (2012) Mercedes SLK250 AMG 204 HP | Rare vehicle

Used (2012) Mercedes SLK250 AMG 204 HP | Rare vehicle

How much does a used Mercedes SLK250 cost? Prices, ratings and depreciation by model year

Model year

Price range*

Avg. Price

Median Mileage

Depreciation(12 mth.)

Cars for sale

Comparison of Mercedes SLK250 variants and prices

Below you can compare prices and depreciation for the 2 most popular Mercedes SLK250 variants. The table is updated daily with data from the market in United Kingdom.

Variant

Price range*

Avg. Price

Median Mileage

Depreciation(12 mth.)

Cars for sale

Which variant should you choose?

💰 The budget choice

🏆 The most popular

📈 The best value

See Mercedes SLK250

Depreciation
(12 mth.)

Depreciation
(12 mth.)