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
This car has wind deflector, speakers, radio, full service history, bluetooth, audio 20, audio, alloy wheels, bluetooth system, bluetooth interface, sports suspension, alloys, cd, pas, centre console storage, auto climate control, centre console, mp3 compatible, ...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 driver, heated seats, bluetooth, climate control, immobiliser, air bag, anti lock brakes, steering wheel leather, computer, central door locking, full service history, steering wheel mounted controls, exterior lighting, parktronic, adjustable steerin...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
Comes with leather, black, mot, alloy wheels, part exchange welcome, anti lock braking system, abs, airbags, airbag, air con, driver, finance available, service history, heated seats, air conditioning, navigation system, automatic, 18in alloy wheels...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
Features include brake assist, air conditioning, heated front seat, air con, convertible, sat nav, cd, heated front seats, diesel, parktronic, audio 20, abs, pas, airbag, radio, alloy wheels, audio, black, driver, warranty, automatic, airbags, leather, passenger, hea...eee
£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
Description includes leather interior, cruise control, heated front seats, cd, wind deflector, air con, alloy wheels, 18in alloy wheels, black, dab radio, heated seats, part exchange welcome, low mileage, satellite navigation, navigation system, automatic, leather, hpi c...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
Options include hpi clear, electric windows, climate control, part exchange welcome, daytime running lights, finance available, 2 keys, wind deflector, dab digital radio, brake assist, cruise control, air conditioning, air con, black, leather, speed limiter, low mil...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
Features include spare wheel, leather upholstery, air bag, driver, traction control system, cloth, passenger, electric windows, alarm, alloy wheels, leather, front fog lights, black, fog lights, pas, fsh, anti lock brakes, immobiliser, cruise control, electronic stab...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
Options include airbag, driver, leather, black, low mileage, full leather, airbags, air con, alarm, audio, audio 20, automatic, air conditioning, brake assist, service history, bluetooth interface, anti lock braking system, bluetooth, pas, alloy wheels, warranty, ab...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
Features on this model include esp, automatic, navigation system, wind deflector, remote boot release, automatic headlamp activation, air conditioning, dab digital radio, tinted glass, alloy wheels, bluetooth, speakers, alarm, 18in alloy wheels, cd, cruise control, electronic stab...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
This model has cloth, abs with brake assist, led daytime running lights, cd, black, convertible, daytime running lights, sports seats, cloth interior, abs, audio, black cloth interior, air con, 17in alloy wheels, cruise control, audio 20, leather steering wheel, si...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
Features include full service history, heated seats, front and rear parking sensors, audio, radio, service history, led daytime running lights, bluetooth, climate control, automatic, rear parking sensors, daytime running lights, black, paddle shift, parking sensors, ...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
Options include bluetooth system, bluetooth interface, wind deflector, cd, full service history, auto climate control, bluetooth, radio, climate control, alloy wheels, service history, pas, audio 20, speakers, centre console storage, audio, sports suspension, mp3 co...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 bluetooth, air bag, driver, steering wheel leather, adjustable steering column, alloy wheels, immobiliser, black, electronic stability programme, service history, computer, anti lock brakes, alarm, exterior lighting, central door locking, headlamp wa...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 immobiliser, pas, 18in alloy wheels, alarm, leather, driver, abs, automatic transmission, alloy wheels, airbags, air con, passenger, air conditioning, airbag, leather interior, service history, black, anti lock braking system, automatic...eee
£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
£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 on this model include driver, adjustable steering column/wheel, electric windows, spare wheel, climate control, electric windows (front), central door locking, steering wheel mounted controls, leather, air bag, speakers, adjustable steering column, alloy wheels...eee
£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 led daytime running lights, service history, daytime running lights, black, registered keeper, leather, petrol, computer, sports seats, trip computer, convertible, mot, alloys, full service history, leather interior...eee
£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 air bag passenger, air bag, exterior lighting, electric windows, leather, electric windows (front), pas, power assisted steering, tinted glass, speakers, electronic stability programme, third brake light, steering wheel mounted controls, computer, ad...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
Features on this model include automatic, heated front seat, bluetooth, climate control, dab digital radio, wind deflector, audio, hpi clear, 18in alloy wheels, parktronic, heated seats, 2 keys, brake assist, dab radio, parking sensors, alloy wheels, audio 20, daytime running ligh...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 mot, airbags, navigation system, 18in alloy wheels, air conditioning, service history, anti lock braking system, abs, part exchange welcome, black, finance available, leather, heated seats, driver, alloy wheels, air con, automatic, airbag...eee
We currently have 120 Mercedes Benz Slk cars available across the UK priced under £20000.
