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

193 Mercedes Benz Slk cars under £20,000 - 86 reductions

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Recently reduced (86)

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)

Options include immobiliser, computer, driver, exterior lighting, anti lock brakes, heated seats, bluetooth, full service history, alarm, adjustable steering column, black, central door locking, headlamp wash, leather, parktronic, steering wheel leather, electronic ...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)

Options include driver, air bag, steering wheel mounted controls, alloy wheels, electronic stability programme, computer, anti lock brakes, air bag passenger, adjustable steering column, pas, air bag driver, passenger, electric windows, electric windows (front), ala...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

This model has leather steering wheel, alarm system/interior protection/immobiliser, service indicator, body colour bumpers, passenger, bluetooth, tinted glass, electric windows, dual stage driver/passenger airbags, driver, trip computer, outside temperature gauge,...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)

Comes with automatic gearbox, part exchange welcome, hpi clear, automatic, sat nav, air con, alloy wheels, finance available, rear parking sensor, climate control, cruise control, leather, radio, speed limiter, heated seats, diesel, 2 keys, parking sensors, blu...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)

Description includes air conditioning, rear parking sensors, abs, 18in alloy wheels, sat nav, bluetooth, 2 keys, radio, petrol, leather, heated front seat, rear parking sensor, mot, black, parking sensors, automatic gearbox, climate control, dab radio, finance available,...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)

Options include abs, heated front seat, cruise control, paddle shift, black, passenger, leather interior, anti lock braking system, airbag, air con, air conditioning, leather, petrol, heated front seats, parking sensors, 18in alloy wheels, heated seats, full service...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)

Includes 1 owner, leather, air con, radio, driver, bluetooth, heated seats, anti lock braking system, pas, dab radio, passenger, black, cruise control, paddle shift, leather interior, 18in alloy wheels, full service history, alarm, abs, audio 20, air conditio...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

Options include remote boot release, brake assist, alloy wheels, head restraints, active head restraints, remote central locking, dab digital radio, airbag, alarm, daytime running lights, locking wheel bolts, leather, alarm system/interior protection/immobiliser, du...eee

GRS Cars, 45 Lancaster Road, Melksham

£11,995
Was £12,395 Save £400

Mercedes Benz SLK SLK 250 D AMG SPORT AUTO

Comes with audio, navigation system, heated front seat, air conditioning, airbags, air con, leather interior, pas, bluetooth, leather, audio 20, alloy wheels, service history, mot, low mileage, warranty, alarm, automatic, passenger, airbag, 18in alloy wheels, b...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)

Options include hpi clear, black, cd, driver, led daytime running lights, 2 keys, warranty, dab radio, climate control, radio, passenger, alloy wheels, electric windows, anti lock braking system, service history, mot, electric mirrors, usb, leather seats, bluetooth,...eee