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Cheap Mercedes Benz Slk cars under £20,000

With a budget of £20,000 you can grab a great bargain. Most of the cars advertised on our site are heavily reduced in price and come with a free history check

119 Mercedes Benz Slk cars under £20,000 - 40 reductions


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Recently reduced (40)

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 Daniel Alexander Motor Group Limited, Melton Lane Signal Box, North Ferriby

£18,991
Was £19,991 Save £1,000

Mercedes Benz SLK 5.4 SLK55 V8 AMG Convertible 2dr Petrol G Tronic Euro 4 (360 ps)

2009  |   56,555 miles  |   Convertible  |   5439  |   petrol  |   automatic  |   2 doors

Featuring bluetooth interface, alloy wheels, service history, centre console, cd, centre console storage, wind deflector, speakers, bluetooth, climate control, sports suspension, audio, radio, full service history, pas, mp3 compatible, passenger, bluetooth sys...eee

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 St James Motor Company William Street, 4 Muira Estate, Hampshire

£17,490
Was £19,490 Save £2,000

Mercedes Benz SLK 5.4 SLK55 AMG Convertible 2dr Petrol 7G Tronic (288 g/km, 360 bhp)

2007  |   61,000 miles  |   Convertible  |   5439  |   petrol  |   automatic  |   2 doors

With exterior lighting, alarm, adjustable steering column, anti lock brakes, steering wheel leather, adjustable steering column/wheel, black, bluetooth, air bag, immobiliser, leather, driver, cruise control, parktronic, electronic stability programme, ser...eee

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 M&W Automotive LTD, Unit 6 Fleet Marston Farm, Aylesbury

£12,750
Was £12,995 Save £245

Mercedes Benz SLK 2.1 SLK250d AMG Sport Convertible 2dr Diesel G Tronic Euro 6 (s/s) (204 ps)

2016  |   52,704 miles  |   Convertible  |   2143  |   diesel  |   automatic  |   2 doors

Comes with airbag, airbags, black, automatic, air con, alloy wheels, service history, 18in alloy wheels, navigation system, abs, anti lock braking system, finance available, part exchange welcome, driver, heated seats, leather, mot, air conditioning...eee

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 Egerton Cars Ltd, Blackburn Road , Bolton

£11,890
Was £11,995 Save £105

Mercedes Benz SLK 2.1 SLK250d AMG Sport Convertible 2dr Diesel G Tronic Euro 6 (s/s) (204 ps)

2016  |   62,597 miles  |   Convertible  |   2143  |   diesel  |   automatic  |   2 doors

Features on this model include audio, automatic, alloy wheels, radio, warranty, alarm, air conditioning, air con, heated front seat, 18in alloy wheels, sat nav, cd, brake assist, passenger, heated seats, abs, black, diesel, airbag, airbags, driver, leather, parktronic, pas, anti l...eee

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 Troon Cars LTD, 33 Wenlock Way, Leicester

£10,990
Was £11,990 Save £1,000

Mercedes Benz SLK 2.1 SLK250 CDI AMG Sport Convertible 2dr Diesel G Tronic+ Euro 5 (s/s) (204 ps)

2013  |   25,200 miles  |   Convertible  |   2143  |   diesel  |   automatic  |   2 doors

Comes with heated front seats, black, dab digital radio, part exchange welcome, audio 20, audio, low mileage, hpi clear, bluetooth, climate control, bluetooth interface, cd, leather interior, air conditioning, dab radio, navigation system, automatic, satellite ...eee

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 Troon Cars LTD, 33 Wenlock Way, Leicester

£10,500
Was £11,500 Save £1,000

Mercedes Benz SLK 2.1 SLK250 CDI AMG Sport Convertible 2dr Diesel G Tronic+ Euro 5 (s/s) (204 ps)

2015  |   47,200 miles  |   Convertible  |   2143  |   diesel  |   automatic  |   2 doors

Options include heated front seats, hpi clear, heated seats, audio, wind deflector, alloy wheels, part exchange welcome, 18in alloy wheels, brake assist, dab digital radio, bluetooth, air conditioning, automatic, air con, daytime running lights, electric windows, le...eee

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 Andrews of Otterbourne, Norlands Drive, Winchester

£10,495
Was £10,995 Save £500

Mercedes Benz SLK 3.0 SLK280 7G Tronic 2dr

2007  |   24,700 miles  |   Convertible  |   2996  |   petrol  |   automatic  |   0 doors

Features include front fog lights, trip computer, air conditioning, leather upholstery, steering wheel leather, cruise control, immobiliser, air bag driver, traction control, side protection mouldings, fog lights, electric windows (front), fsh, air con, black, air ba...eee

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 Harveys Car Centre Scaynes Hill, Lewes Road, West Sussex

£9,995
Was £10,495 Save £500

Mercedes Benz SLK 2.1 SLK250d AMG Sport Convertible 2dr Diesel G Tronic Euro 6 (s/s) (204 ps)

2015  |   66,000 miles  |   Convertible  |   2143  |   diesel  |   automatic  |   2 doors

Options include full leather, air conditioning, air con, passenger, low mileage, alloy wheels, radio, driver, brake assist, 18in alloy wheels, airbags, audio 20, audio, anti lock braking system, alarm, leather, bluetooth, abs, automatic, alloys, warranty, pas, black...eee

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 Manor Garage, Crossroads Farm, Kingsdown, Box

£9,750
Was £9,950 Save £200

Mercedes Benz SLK SLK 200 BlueEFFICIENCY AMG Sport 2dr Tip Auto

2012  |   54,000 miles  |   Convertible  |   1796  |   petrol  |   automatic  |   2 doors

Features on this model include 18in alloy wheels, cd, alarm, head restraints, speakers, tinted glass, automatic, automatic headlamp activation, alloy wheels, tyre pressure loss warning system, sports suspension, air con, wind deflector, radio, cruise control, dab digital radio, re...eee

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 Prestige Car Supermarket, A19 Crockey Hill, York

£9,699
Was £10,799 Save £1,100

Mercedes Benz SLK 2.1 SLK250 CDI Convertible 2dr Diesel G Tronic+ Euro 5 (s/s) (204 ps)

2014  |   36,624 miles  |   Convertible  |   2143  |   diesel  |   automatic  |   2 doors

This car has esp, bluetooth, dab digital radio, abs, cd, sports seats, radio, air con, speed limiter, pas, passenger, cruise control, led daytime running lights, black, abs with brake assist, diesel, leather, driver, aluminium trim, bluetooth interface, anti lock...eee





119 cars under £20,000

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 Derby Trade Cars Limited Derby, Ascot Drive, Derbyshire

£19,990

Mercedes Benz SLK 5.5 SLK55 V8 AMG Convertible 2dr Petrol SpdS+7GT Euro 5 (s/s) (421 ps)

2013  |   56,000 miles  |   Convertible  |   5461  |   petrol  |   automatic  |   2 doors

This car has dab digital radio, bluetooth audio streaming, bluetooth, sat nav, leather seats, front and rear parking sensors, audio, heated seats, cruise control, full service history, led daytime running lights, parking sensors, climate control, leather, alloys,...eee

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 Daniel Alexander Motor Group Limited, Melton Lane Signal Box, North Ferriby

£18,991
Was £19,991 Save £1,000

Mercedes Benz SLK 5.4 SLK55 V8 AMG Convertible 2dr Petrol G Tronic Euro 4 (360 ps)

2009  |   56,555 miles  |   Convertible  |   5439  |   petrol  |   automatic  |   2 doors

Includes audio 20, bluetooth, full service history, sports suspension, alloy wheels, alloys, centre console, wind deflector, centre console storage, climate control, speakers, cd, passenger, audio, pas, service history, bluetooth system, radio, mp3 compatible...eee

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 St James Motor Company William Street, 4 Muira Estate, Hampshire

£17,490
Was £19,490 Save £2,000

Mercedes Benz SLK 5.4 SLK55 AMG Convertible 2dr Petrol 7G Tronic (288 g/km, 360 bhp)

2007  |   61,000 miles  |   Convertible  |   5439  |   petrol  |   automatic  |   2 doors

This car has heated seats, driver, computer, parktronic, electronic stability programme, bluetooth, alarm, central door locking, steering wheel mounted controls, exterior lighting, cruise control, immobiliser, climate control, adjustable steering column/wheel, ad...eee

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 Integrity Automotive Limited, West End Road, Ipswich

£17,350

Mercedes Benz SLK 5.5 SLK55 V8 AMG Convertible 2dr Petrol SpdS MCT Euro 5 (s/s) (421 ps)

2012  |   79,431 miles  |   Convertible  |   5461  |   petrol  |   automatic  |   2 doors

With immobiliser, driver, airbags, leather interior, automatic transmission, anti lock braking system, automatic, pas, abs, air conditioning, leather, service history, air con, passenger, alarm, alloy wheels, black, 18in alloy wheels, airbag...eee

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 SKS Cars Ltd, 1-9 Barton Road, Milton Keynes

£16,995

Mercedes Benz SLK 3.5 SLK350 AMG Sport Convertible 2dr Petrol G Tronic+ Euro 5 (s/s) (306 ps)

2015  |   30,000 miles  |   Convertible  |   3498  |   petrol  |   automatic  |   2 doors

Description includes We have much more to tell you about this car so please feel free to call us for more details...eee

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 Snippersgate, Easington Lane, Houghton-Le-Spring

£15,000

Mercedes Benz SLK 5.4 SLK55 AMG Convertible 2d 5439cc 7G Tronic

2007  |   63,000 miles  |   Convertible  |   5439  |   petrol  |   automatic  |   2 doors

Features include adjustable steering column/wheel, steering wheel mounted controls, air bag, leather, electric windows, climate control, spare wheel, central door locking, driver, adjustable steering column, alloy wheels, electric windows (front), speakers...eee

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 RJ Cars Horley Ltd, The Old Forge, Horley

£14,995

Mercedes Benz SLK SLK 300 AMG Sport 2dr Tip Auto

2015  |   39,000 miles  |   Convertible  |   1991  |   petrol  |   automatic  |   0 doors

Features on this model include alloys, sports seats, full service history, petrol, leather, leather interior, mot, black, service history, convertible, led daytime running lights, computer, registered keeper, daytime running lights, trip computer...eee

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 Snippersgate, Easington Lane, Houghton-Le-Spring

£14,000

Mercedes Benz SLK 5.4 SLK55 AMG 2d AUTO 356 BHP

2007  |   40,000 miles  |   Convertible  |   5439  |   petrol  |   automatic  |   2 doors

Options include immobiliser, passenger, adjustable steering column, alloy wheels, power assisted steering, third brake light, alarm, spare wheel, leather, steering wheel mounted controls, electric windows (front), exterior lighting, central door locking, air bag dri...eee

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 Troon Cars LTD, 33 Wenlock Way, Leicester

£12,990

Mercedes Benz SLK 2.1 SLK250d AMG Sport Convertible 2dr Diesel G Tronic Euro 6 (s/s) (204 ps)

2016  |   56,500 miles  |   Convertible  |   2143  |   diesel  |   automatic  |   2 doors

Features on this model include cruise control, wind deflector, 18in alloy wheels, heated seats, hpi clear, brake assist, part exchange welcome, climate control, automatic, parktronic, rear parking sensors, speed limiter, heated front seats, parking sensors, heated front seat, auto...eee

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 M&W Automotive LTD, Unit 6 Fleet Marston Farm, Aylesbury

£12,750
Was £12,995 Save £245

Mercedes Benz SLK 2.1 SLK250d AMG Sport Convertible 2dr Diesel G Tronic Euro 6 (s/s) (204 ps)

2016  |   52,704 miles  |   Convertible  |   2143  |   diesel  |   automatic  |   2 doors

With navigation system, leather, driver, abs, anti lock braking system, service history, mot, air conditioning, automatic, black, airbag, alloy wheels, heated seats, finance available, part exchange welcome, air con, airbags, 18in alloy wheels...eee






We currently have 119 Mercedes Benz Slk cars available across the UK priced under £20000.

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