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
120 Mercedes Benz Slk cars under £20,000 - 41 reductions
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Recently reduced (41)
£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
Features include sports suspension, audio 20, audio, bluetooth interface, bluetooth system, speakers, climate control, radio, bluetooth, full service history, passenger, centre console storage, alloy wheels, wind deflector, centre console, pas, cd, service history, m...eee
£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 exterior lighting, headlamp wash, black, air bag, full service history, adjustable steering column, climate control, central door locking, electronic stability programme, steering wheel leather, leather, steering wheel mounted controls, immobiliser, ...eee
£16,695
Was £16,995 Save £300
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
Includes We have much more to tell you about this car so please feel free to call us for more details...eee
£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
Includes black, heated seats, navigation system, 18in alloy wheels, air conditioning, mot, leather, automatic, abs, airbags, airbag, alloy wheels, part exchange welcome, air con, driver, service history, finance available, anti lock braking system...eee
£11,799
Was £11,995 Save £196
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
This model has diesel, air conditioning, airbag, cd, audio, brake assist, airbags, pas, leather, warranty, 18in alloy wheels, automatic, convertible, parktronic, anti lock braking system, audio 20, black, alloy wheels, radio, air con, passenger, driver, sat nav, ab...eee
£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
Featuring wind deflector, navigation system, leather, daytime running lights, air con, leather interior, low mileage, audio, bluetooth interface, automatic, cd, radio, finance available, alarm, part exchange welcome, black, heated front seats, alloy wheels, cr...eee
£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
This model has air bag driver, leather, leather upholstery, computer, spare wheel, immobiliser, anti lock brakes, power assisted steering, cruise control, air con, trip computer, air conditioning, fsh, alarm, electric windows, black, tinted glass, front fog lights,...eee
£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
Featuring radio, bluetooth, alloy wheels, passenger, 18in alloy wheels, bluetooth interface, pas, anti lock braking system, alarm, audio, airbags, brake assist, leather, warranty, automatic, audio 20, service history, abs, low mileage, air con, airbag, alloys,...eee
£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
Options include sports suspension, remote boot release, bluetooth interface, alarm, radio, air con, usb, electronic stability programme, head restraints, tinted glass, esp, cruise control, tyre pressure loss warning system, cd, speakers, automatic headlamp activatio...eee
£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
Comes with diesel, anti lock braking system, cloth, leather steering wheel, dab digital radio, abs with brake assist, black, passenger, side airbags, speed limiter, alloy wheels, audio, bluetooth interface, daytime running lights, black cloth interior, bluetoot...eee
120 cars under £20,000
£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 parking sensors, daytime running lights, bluetooth audio streaming, full service history, alloys, climate control, black, rear parking sensors, paddle shift, bluetooth, automatic, leather, sunroof, radio, cruise control, front and rear parking sensor...eee
£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
This model has alloy wheels, audio 20, radio, centre console storage, mp3 compatible, speakers, centre console, sports suspension, audio, pas, cd, bluetooth interface, auto climate control, service history, bluetooth, climate control, bluetooth system, alloys, full...eee
£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
Options include air bag, computer, electronic stability programme, exterior lighting, central door locking, parktronic, alloy wheels, full service history, bluetooth, adjustable steering column/wheel, immobiliser, alarm, heated seats, black, leather, steering wheel ...eee
£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
Featuring black, passenger, 18in alloy wheels, automatic, leather interior, airbag, pas, driver, abs, service history, alloy wheels, alarm, immobiliser, airbags, anti lock braking system, air con, air conditioning, leather, automatic transmission...eee
£16,695
Was £16,995 Save £300
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
Features on this model include We have much more to tell you about this car so please feel free to call us for more details...eee
£15,000
Mercedes Benz SLK 5.4 SLK55 AMG Convertible 2d 5439cc 7G Tronic
2007 | 63,000 miles | Convertible | 5439 | petrol | automatic | 2 doors
Includes steering wheel mounted controls, driver, electric windows (front), leather, adjustable steering column/wheel, alloy wheels, electric windows, air bag, speakers, adjustable steering column, spare wheel, central door locking, climate control...eee
£14,995
Mercedes Benz SLK SLK 300 AMG Sport 2dr Tip Auto
2015 | 39,000 miles | Convertible | 1991 | petrol | automatic | 0 doors
Description includes alloys, daytime running lights, sports seats, registered keeper, leather, leather interior, full service history, petrol, mot, black, service history, led daytime running lights, trip computer, convertible, computer...eee
£14,000
Mercedes Benz SLK 5.4 SLK55 AMG 2d AUTO 356 BHP
2007 | 40,000 miles | Convertible | 5439 | petrol | automatic | 2 doors
This car has pas, air bag passenger, driver, climate control, steering wheel mounted controls, alloy wheels, steering wheel leather, cruise control, air bag, alarm, anti lock brakes, electric windows (front), leather, immobiliser, central door locking, exterior l...eee
£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
Featuring parking sensors, climate control, radio, bluetooth, bluetooth interface, dab radio, part exchange welcome, speed limiter, air conditioning, heated front seats, cruise control, air con, hpi clear, audio 20, heated seats, brake assist, 2 owners, alloy ...eee
£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
Featuring abs, navigation system, leather, driver, anti lock braking system, airbag, air conditioning, air con, automatic, airbags, service history, heated seats, black, part exchange welcome, alloy wheels, 18in alloy wheels, finance available, mot...eee
We currently have 120 Mercedes Benz Slk cars available across the UK priced under £20000.
