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

196 Mercedes Benz Slk cars under £20,000 - 84 reductions

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Recently reduced (84)

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)

Comes with anti lock brakes, adjustable steering column/wheel, headlamp wash, electronic stability programme, exterior lighting, steering wheel leather, computer, climate control, immobiliser, alloy wheels, adjustable steering column, bluetooth, full service hi...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)

Description includes computer, adjustable steering column, power assisted steering, electric windows (front), central door locking, anti lock brakes, pas, driver, adjustable steering column/wheel, steering wheel mounted controls, air bag driver, alarm, alloy wheels, air ...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

Featuring passenger, computer, bluetooth system, alloy wheels, multi function steering wheel, head restraints, alarm, speed limiter, radio, electric windows, brake assist, abs, immobiliser, active head restraints, leather gear knob, pas, remote boot release, l...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 speed limiter, finance available, alloy wheels, automatic gearbox, navigation system, automatic, cruise control, sat nav, parking sensors, 2 keys, air conditioning, radio, hpi clear, heated front seat, audio 20, mot, rear parking sensors, leather int...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 sat nav, parktronic, airbag, heated seats, alloy wheels, radio, rear parking sensors, mot, rear parking sensor, air conditioning, petrol, air con, navigation system, anti lock braking system, abs, driver, dab radio, heated front seats, hpi clear, blu...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)

With abs, full service history, alloy wheels, petrol, air con, bluetooth, heated front seat, airbag, heated front seats, anti lock braking system, radio, leather, 18in alloy wheels, sat nav, airbags, pas, cruise control, air conditioning, leather interior...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 18in alloy wheels, bluetooth, airbags, anti lock braking system, full service history, driver, audio, black, radio, parking sensors, sat nav, 1 owner, air conditioning, leather, passenger, audio 20, pas, air con, abs, paddle shift, leather interior, ...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 usb, abs, electric windows, sports seats, daytime running lights, body coloured bumpers, driver, locking wheel bolts, abs with brake assist, tyre pressure monitoring system, front centre armrest, central locking, pas, airbag, passenger, trip computer...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 driver, bluetooth interface, airbag, mot, automatic, airbags, heated front seat, abs, service history, pas, radio, heated front seats, air conditioning, bluetooth, leather interior, audio 20, black, convertible, low mileage, 18in alloy wheels, alarm,...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 leather seats, warranty, alloy wheels, radio, hpi clear, climate control, passenger, bluetooth, cd, led daytime running lights, black, daytime running lights, leather, cruise control, alloys, 18in alloy wheels, 2 keys, auto lights, service history, a...eee