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
149 Mercedes Benz Slk cars under £20,000 - 47 reductions
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Recently reduced (47)
£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
Comes with bluetooth system, centre console, auto climate control, sports suspension, alloys, speakers, service history, audio, bluetooth, passenger, mp3 compatible, wind deflector, full service history, climate control, audio 20, bluetooth interface, alloy whe...eee
£18,950
Was £19,950 Save £1,000
Mercedes Benz SLK 5.4 SLK55 AMG Convertible 2dr Petrol Automatic (288 g/km, 360 bhp)
2005 | 48,432 miles | Convertible | 5439 | petrol | automatic | 2 doors
Description includes central door locking, speakers, black, spare wheel, electric windows (front), passenger, adjustable steering column/wheel, immobiliser, anti lock brakes, leather, electronic stability programme, computer, electric windows, alarm, power assisted steer...eee
£18,490
Was £19,490 Save £1,000
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 headlamp wash, anti lock brakes, full service history, alarm, adjustable steering column/wheel, computer, climate control, parktronic, heated seats, alloy wheels, service history, bluetooth, central door locking, leather, black, steering wheel mounte...eee
£18,489
Was £18,749 Save £260
Mercedes Benz SLK 5.5 SLK55 V8 AMG Convertible 2dr Petrol SpdS MCT Euro 5 (s/s) (421 ps)
2012 | 56,000 miles | Convertible | 5461 | petrol | automatic | 2 doors
Featuring cruise control, anti lock braking system, sat nav, rear parking sensors, heated front seats, rear parking sensor, headlight wash, leather, airbags, electric windows, pas, airbag, alarm, immobiliser, air conditioning, 18in alloy wheels, usb, abs, auto...eee
£15,899
Was £17,999 Save £2,100
Mercedes Benz SLK 3.5 SLK350 AMG Sport Convertible 2dr Petrol G Tronic+ Euro 5 (s/s) (306 ps)
2014 | 27,425 miles | Convertible | 3498 | petrol | automatic | 2 doors
Comes with heated front seat, convertible, radio, automatic, bluetooth, parktronic, bluetooth connectivity, abs, cruise control, black, leather, navigation system, leather interior, automatic gearbox, 18in alloy wheels, leather steering wheel, coupe, wind defle...eee
£13,295
Was £13,449 Save £154
Mercedes Benz SLK 2.1 SLK 250 D AMG SPORT 2d 201 BHP
2015 | 34,500 miles | Convertible | 2143 | diesel | automatic | 2 doors
This model has abs, radio, leather, leather interior, mot, 18in alloy wheels, dab radio, audio, bluetooth, rear parking sensor, alarm, brake assist, alloy wheels, bluetooth interface, convertible, rear parking sensors, audio 20, black, parking sensors, multi functi...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 | 51,704 miles | Convertible | 2143 | diesel | automatic | 2 doors
Includes airbag, airbags, finance available, 18in alloy wheels, leather, alloy wheels, part exchange welcome, anti lock braking system, black, automatic, navigation system, abs, service history, bluetooth, mot, air conditioning, air con, heated seats, driver...eee
£11,599
Was £12,299 Save £700
Mercedes Benz SLK 2.1 SLK250 CDI AMG Sport Convertible 2dr Diesel G Tronic+ Euro 5 (s/s) (204 ps)
2015 | 30,899 miles | Convertible | 2143 | diesel | automatic | 2 doors
Features include audio, abs, pas, alloys, convertible, alloy wheels, brake assist, diesel, leather interior, airbag, multi function steering wheel, driver, air con, speed limiter, alarm, leather, led daytime running lights, air conditioning, cd, sports suspension, ra...eee
£10,750
Was £10,850 Save £100
Mercedes Benz SLK 2.1 SLK250 CDI BlueEfficiency AMG Sport Convertible 2dr Diesel G Tronic+ Euro 5 (s/s) (204 ps)
2013 | 40,500 miles | Convertible | 2143 | diesel | automatic | 2 doors
Options include hpi clear, leather interior, 18in alloy wheels, wind deflector, alloy wheels, audio 20, heated front seat, air conditioning, dab digital radio, automatic climate control, radio, bluetooth, daytime running lights, cd, heated seats, part exchange welco...eee
£10,699
Was £10,799 Save £100
Mercedes Benz SLK 1.8 SLK200 AMG Sport Convertible 2dr Petrol G Tronic+ Euro 5 (s/s) (184 ps)
2014 | 58,955 miles | Convertible | 1796 | petrol | automatic | 2 doors
This model has We have much more to tell you about this car so please feel free to call us for more details...eee
149 cars under £20,000
£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 full service history, centre console storage, centre console, speakers, cd, sports suspension, service history, audio 20, wind deflector, bluetooth interface, auto climate control, climate control, radio, passenger, audio, bluetooth, pas, alloy wheel...eee
£18,950
Was £19,950 Save £1,000
Mercedes Benz SLK 5.4 SLK55 AMG Convertible 2dr Petrol Automatic (288 g/km, 360 bhp)
2005 | 48,432 miles | Convertible | 5439 | petrol | automatic | 2 doors
This model has adjustable steering column/wheel, steering wheel mounted controls, speakers, alarm, passenger, central door locking, electronic stability programme, pas, electric windows (front), black, computer, alloy wheels, leather, air bag driver, electric windo...eee
£18,490
Was £19,490 Save £1,000
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 heated seats, steering wheel mounted controls, bluetooth, full service history, climate control, electronic stability programme, alarm, parktronic, leather, service history, adjustable steering column/wheel, driver, central door locking, exterior lig...eee
£18,489
Was £18,749 Save £260
Mercedes Benz SLK 5.5 SLK55 V8 AMG Convertible 2dr Petrol SpdS MCT Euro 5 (s/s) (421 ps)
2012 | 56,000 miles | Convertible | 5461 | petrol | automatic | 2 doors
This model has passenger, sports suspension, parking sensors, sat nav, leather, usb, brake assist, automatic, power assisted steering, immobiliser, headlight wash, rear parking sensors, radio, air con, 18in alloy wheels, satellite navigation, manual, heated front s...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
This model has alloy wheels, service history, leather interior, airbags, pas, driver, air con, air conditioning, anti lock braking system, abs, black, 18in alloy wheels, immobiliser, airbag, automatic, leather, automatic transmission, passenger, alarm...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
Featuring We have much more to tell you about this car so please feel free to call us for more details...eee
£15,899
Was £17,999 Save £2,100
Mercedes Benz SLK 3.5 SLK350 AMG Sport Convertible 2dr Petrol G Tronic+ Euro 5 (s/s) (306 ps)
2014 | 27,425 miles | Convertible | 3498 | petrol | automatic | 2 doors
Description includes alloy wheels, coupe, black, wind deflector, anti lock braking system, bluetooth connectivity, navigation system, automatic, automatic gearbox, cruise control, convertible, heated front seats, heated front seat, 18in alloy wheels, dab radio, bluetooth...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, adjustable steering column, electric windows (front), alloy wheels, leather, adjustable steering column/wheel, speakers, electric windows, spare wheel, climate control, air bag, driver, central door locking...eee
£14,495
Mercedes Benz SLK 2.0 SLK200 AMG Sport Convertible 2dr Petrol G Tronic Euro 6 (s/s) (184 ps)
2015 | 31,000 miles | Convertible | 1991 | 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
£14,000
Mercedes Benz SLK 5.4 SLK55 AMG 2d AUTO 356 BHP
2007 | 40,000 miles | Convertible | 5439 | petrol | automatic | 2 doors
Features on this model include third brake light, air bag, alarm, passenger, cruise control, electronic stability programme, air bag passenger, pas, electric windows, climate control, spare wheel, driver, steering wheel leather, tinted glass, adjustable steering column, air bag dr...eee
We currently have 149 Mercedes Benz Slk cars available across the UK priced under £20000.
