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

195 Mercedes Benz Slk cars under £20,000 - 83 reductions

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Recently reduced (83)

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

£18,990
Was £19,490 Save £500

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

This model has heated seats, steering wheel mounted controls, headlamp wash, exterior lighting, alloy wheels, air bag, steering wheel leather, driver, computer, climate control, adjustable steering column, immobiliser, leather, service history, adjustable steering ...eee

DT Performance Cars, Unit 1A, Atherstone

£18,950
Was £19,950 Save £1,000

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

Features on this model include alloy wheels, driver, central door locking, immobiliser, electric windows, speakers, air bag, steering wheel mounted controls, adjustable steering column, air bag driver, black, adjustable steering column/wheel, leather, passenger, electric windows (...eee

Vertu Volkswagen Mansfield, 206 Chesterfield Road North, Mansfield

£15,368
Was £15,860 Save £492

Mercedes Benz SLK SLK 300 AMG Sport 2dr Tip Auto

With computer, passenger, outside temperature gauge, electric windows, dab digital radio, electronic parking brake, tyre pressure monitoring system, bluetooth, locking wheel bolts, sports seats, dual stage driver/passenger airbags, chrome exhaust tailpipe...eee

Troon Cars LTD, 33 Wenlock Way, Leicester

£14,500
Was £14,990 Save £490

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

Features include alarm, 18in alloy wheels, diesel, cruise control, low mileage, bluetooth interface, part exchange welcome, audio 20, rear parking sensor, 2 keys, hpi clear, automatic gearbox, leather interior, air con, alloy wheels, parktronic, leather, radio, heate...eee

Troon Cars LTD, 33 Wenlock Way, Leicester

£14,300
Was £15,500 Save £1,200

Mercedes Benz SLK 1.8 SLK250 AMG Sport Convertible 2dr Petrol G Tronic+ Euro 5 (s/s) (204 ps)

This car has anti lock braking system, part exchange welcome, heated front seat, radio, airbag, automatic gearbox, parking sensors, leather, automatic, alloy wheels, heated seats, bluetooth, abs, petrol, rear parking sensors, parktronic, black, hpi clear, heated ...eee

Xclusive Xports, Ashendene Farm, Bayford

£13,450
Was £13,950 Save £500

Mercedes Benz SLK 2.0 SLK300 AMG Sport Convertible 2dr Petrol G Tronic Euro 6 (s/s) (245 ps)

Comes with sat nav, full service history, petrol, cruise control, anti lock braking system, heated front seat, service history, air conditioning, airbag, radio, leather interior, dab radio, passenger, alloy wheels, airbags, black, pas, heated seats, paddle shif...eee

Xclusive Xports, Ashendene Farm, Bayford

£13,450
Was £13,750 Save £300

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

Comes with 1 owner, passenger, 18in alloy wheels, heated seats, radio, pas, alloy wheels, airbag, leather, service history, dab radio, anti lock braking system, air con, audio 20, full service history, abs, driver, sat nav, bluetooth, air conditioning, black, a...eee

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

£12,495
Was £12,995 Save £500

Mercedes Benz SLK 1.8 SLK200 AMG SPORT EDITION 2d 184 BHP

Features on this model include heated door mirrors, driver, central locking, usb, airbags, daytime running lights, pas, multi function steering wheel, electrically adjustable and heated door mirrors, service indicator, front centre armrest, immobiliser, led daytime running lights,...eee

GRS Cars, 45 Lancaster Road, Melksham

£11,995
Was £12,395 Save £400

Mercedes Benz SLK SLK 250 D AMG SPORT AUTO

Options include audio 20, audio, airbags, radio, black, mot, heated front seats, leather interior, navigation system, driver, convertible, service history, brake assist, air conditioning, low mileage, pas, bluetooth interface, leather, airbag, anti lock braking syst...eee

Alpha Motors (Wigan) Limited, Park Lane Garage, Wigan

£11,990
Was £12,990 Save £1,000

Mercedes Benz SLK 2.0 SLK200 AMG Sport Convertible 2dr Petrol Manual Euro 6 (s/s) (184 ps)

This model has climate control, daytime running lights, service history, passenger, bluetooth, cd, dab radio, driver, 18in alloy wheels, black, auto lights, alloy wheels, electric windows, pas, alloys, warranty, hpi clear, radio, leather seats, led daytime running ...eee