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 on this model include radio, sports suspension, auto climate control, mp3 compatible, pas, speakers, centre console, service history, cd, climate control, bluetooth interface, bluetooth system, full service history, alloy wheels, audio 20, audio, bluetooth, wind deflector...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
Features include headlamp wash, cruise control, adjustable steering column, adjustable steering column/wheel, heated seats, computer, alloy wheels, immobiliser, exterior lighting, full service history, steering wheel leather, service history, driver, black, electroni...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
Options include 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
Features include abs, service history, automatic, part exchange welcome, airbag, heated seats, air conditioning, driver, mot, leather, finance available, air con, alloy wheels, black, airbags, 18in alloy wheels, navigation system, 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
With alarm, brake assist, convertible, automatic, abs, air conditioning, diesel, airbags, warranty, airbag, parktronic, audio, audio 20, radio, heated seats, driver, air con, leather, heated front seats, anti lock braking system, passenger, heated front s...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
This car has cruise control, brake assist, heated front seat, navigation system, black, 2 keys, 18in alloy wheels, part exchange welcome, heated front seats, hpi clear, low mileage, audio 20, bluetooth, leather, air conditioning, wind deflector, finance available...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
Featuring tinted glass, air conditioning, traction control system, adjustable steering column/wheel, leather upholstery, steering wheel leather, power assisted steering, trip computer, speakers, air bag, steering wheel mounted controls, cruise control, electri...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 service history, audio 20, 18in alloy wheels, passenger, alloys, full leather, driver, air con, brake assist, air conditioning, airbags, bluetooth interface, warranty, low mileage, audio, alloy wheels, automatic, leather, pas, alarm, abs, black, anti...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
This car has sports suspension, tyre pressure loss warning system, radio, cruise control, speakers, head restraints, cd, automatic headlamp activation, air con, wind deflector, usb, remote boot release, bluetooth interface, air conditioning, esp, immobiliser, nav...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
Featuring automatic, alloy wheels, airbags, leather, audio, bluetooth, leather steering wheel, brake assist, cruise control, passenger, automatic transmission, esp, convertible, daytime running lights, 17in alloy wheels, bluetooth interface, driver, cd, black,...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
Description includes led daytime running lights, paddle shift, sunroof, leather, automatic, rear parking sensors, sat nav, parking sensors, climate control, bluetooth, dab digital radio, automatic headlights, black, rear parking sensor, audio, bluetooth audio streaming, ...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
Features include full service history, audio, auto climate control, audio 20, centre console, mp3 compatible, wind deflector, passenger, alloy wheels, pas, climate control, sports suspension, radio, bluetooth, bluetooth interface, centre console storage, alloys, blue...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
Featuring headlamp wash, alarm, adjustable steering column, exterior lighting, alloy wheels, bluetooth, steering wheel leather, black, climate control, parktronic, adjustable steering column/wheel, cruise control, service history, immobiliser, air bag, anti lo...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
Comes with air conditioning, abs, immobiliser, leather interior, driver, alloy wheels, leather, 18in alloy wheels, passenger, automatic, black, airbag, pas, air con, alarm, automatic transmission, airbags, anti lock braking system, service history...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
This car has 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
With air bag, climate control, steering wheel mounted controls, alloy wheels, speakers, electric windows, adjustable steering column, central door locking, driver, electric windows (front), adjustable steering column/wheel, spare wheel, leather...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 computer, led daytime running lights, black, petrol, alloys, sports seats, registered keeper, daytime running lights, leather, convertible, leather interior, full service history, service history, trip computer, mot...eee
£14,000
Mercedes Benz SLK 5.4 SLK55 AMG 2d AUTO 356 BHP
2007 | 40,000 miles | Convertible | 5439 | petrol | automatic | 2 doors
Description includes air bag passenger, exterior lighting, speakers, adjustable steering column/wheel, central door locking, air bag driver, immobiliser, alarm, leather, spare wheel, electronic stability programme, adjustable steering column, steering wheel mounted contr...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 include rear parking sensor, rear parking sensors, automatic gearbox, hpi clear, daytime running lights, 2 owners, air con, dab radio, 2 keys, bluetooth, audio 20, 18in alloy wheels, wind deflector, air conditioning, bluetooth interface, audio, part exchange...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
This car has 18in alloy wheels, automatic, driver, airbag, airbags, service history, abs, black, heated seats, leather, anti lock braking system, air con, alloy wheels, air conditioning, part exchange welcome, mot, navigation system, finance available...eee
We currently have 120 Mercedes Benz Slk cars available across the UK priced under £20000.
