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

188 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)

Comes with black, climate control, heated seats, adjustable steering column/wheel, electronic stability programme, immobiliser, alloy wheels, computer, exterior lighting, service history, headlamp wash, alarm, full service history, cruise control, leather, anti...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 black, alloy wheels, spare wheel, electric windows (front), anti lock brakes, electric windows, steering wheel mounted controls, alarm, climate control, electronic stability programme, passenger, adjustable steering column, leather, central door lock...eee

Vertu Volkswagen Mansfield, 206 Chesterfield Road North, Mansfield

£15,223
Was £15,860 Save £637

Mercedes Benz SLK SLK 300 AMG Sport 2dr Tip Auto

Includes multi function steering wheel, tyre pressure monitoring system, alarm, immobiliser, dab digital radio, locking wheel bolts, outside temperature gauge, green tinted glass, electrically adjustable and heated door mirrors, tinted glass, usb, passenger, ...eee

Troon Cars LTD, 33 Wenlock Way, Leicester

£14,900
Was £15,500 Save £600

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

This model has bluetooth, parking sensors, heated front seat, radio, leather, rear parking sensor, part exchange welcome, rear parking sensors, mot, hpi clear, heated seats, climate control, 18in alloy wheels, abs, 2 keys, automatic, anti lock braking system, alloy...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)

With heated front seat, navigation system, alarm, leather interior, rear parking sensors, bluetooth, heated front seats, mot, parking sensors, part exchange welcome, parktronic, cruise control, finance available, alloy wheels, low mileage, rear parking se...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)

This car has heated front seat, passenger, pas, airbag, heated front seats, bluetooth, alloy wheels, service history, sat nav, leather, leather interior, radio, cruise control, black, air conditioning, driver, full service history, 18in alloy wheels, heated seats...eee

Xclusive Xports, Ashendene Farm, Bayford

£12,950
Was £13,750 Save £800

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

This car has audio 20, radio, driver, airbag, dab radio, audio, air con, leather interior, black, anti lock braking system, full service history, leather, service history, passenger, sat nav, airbags, parking sensors, bluetooth, 18in alloy wheels, pas, heated sea...eee

GRS Cars, 45 Lancaster Road, Melksham

£11,695
Was £12,395 Save £700

Mercedes Benz SLK SLK 250 D AMG SPORT AUTO

Comes with air conditioning, radio, alloy wheels, passenger, mot, bluetooth, automatic, leather interior, anti lock braking system, warranty, audio 20, driver, air con, 18in alloy wheels, audio, leather, navigation system, convertible, heated front seats, bluet...eee

Aspi Specialist Cars, Warwick Road, Stratford upon Avon

£11,500
Was £12,000 Save £500

Mercedes Benz SLK 1.8 SLK200 AMG Sport Convertible 2dr Petrol G Tronic+ Euro 5 (s/s) (184 ps)

Featuring automatic, passenger, central locking, alarm/immobiliser, folding mirrors, navigation system, alloy wheels, electric folding mirrors, remote alarm, audio, speed limiter, bluetooth interface, driver, immobiliser, service history, leather, pas, dab dig...eee

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

£11,490
Was £12,990 Save £1,500

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

Features on this model include warranty, cd, 18in alloy wheels, hpi clear, radio, alloy wheels, passenger, pas, mot, led daytime running lights, anti lock braking system, leather seats, cruise control, usb, bluetooth, leather, service history, black, 2 keys, climate control, elect...eee