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

185 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)

Description includes heated seats, adjustable steering column, leather, electronic stability programme, service history, full service history, black, driver, anti lock brakes, central door locking, steering wheel leather, headlamp wash, parktronic, bluetooth, computer, s...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)

This model has alarm, electronic stability programme, speakers, alloy wheels, anti lock brakes, central door locking, air bag, driver, passenger, air bag passenger, leather, computer, pas, power assisted steering, steering wheel mounted controls, electric windows, ...eee

Vertu Volkswagen Mansfield, 206 Chesterfield Road North, Mansfield

£14,500
Was £15,860 Save £1,360

Mercedes Benz SLK SLK 300 AMG Sport 2dr Tip Auto

Features on this model include leather, automatic headlamp activation, abs, heated door mirrors, active head restraints, alarm system/interior protection/immobiliser, driver, airbag, bluetooth, brake assist, pas, cruise control, body colour bumpers, leather steering wheel, trip co...eee

Troon Cars LTD, 33 Wenlock Way, Leicester

£14,000
Was £15,500 Save £1,500

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

Features on this model include anti lock braking system, parking sensors, air con, leather, sat nav, air conditioning, heated front seats, airbag, 18in alloy wheels, rear parking sensors, leather interior, radio, navigation system, climate control, abs, rear parking sensor, 2 keys...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)

Options include leather interior, sat nav, 1 owner, full service history, 18in alloy wheels, driver, audio 20, pas, air conditioning, leather, parking sensors, dab radio, service history, cruise control, heated seats, alarm, airbags, bluetooth, abs, airbag, audio, p...eee

GRS Cars, 45 Lancaster Road, Melksham

£11,695
Was £12,395 Save £700

Mercedes Benz SLK SLK 250 D AMG SPORT AUTO

Features include driver, automatic, black, warranty, heated front seat, alloy wheels, 18in alloy wheels, radio, leather interior, low mileage, air conditioning, audio 20, convertible, airbags, audio, pas, anti lock braking system, navigation system, brake assist, lea...eee

Anchor Cars Tadley, 28 Mulfords Hill, Tadley

£11,694
Was £11,695 Save £1

Mercedes Benz SLK SLK 250d AMG Sport 2dr Tip Auto

Description includes diesel, head restraints, tyre pressure monitoring system, chrome exhaust tailpipe, airbag, daytime running lights, outside temperature gauge, esp, tinted glass, abs with brake assist, airbags, service indicator, alarm, dual stage driver/passenger air...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)

Features include heated front seat, leather, automatic, driver, abs, audio, alarm, folding mirrors, alarm/immobiliser, immobiliser, brake assist, heated front seats, anti lock braking system, cd, pas, cruise control, alloy wheels, service history, remote alarm, elect...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 include electric mirrors, black, passenger, leather, hpi clear, daytime running lights, usb, bluetooth, 2 keys, anti lock braking system, auto lights, radio, electric windows, alloy wheels, pas, mot, driver, climate control, cd, warranty, led daytime running...eee

Prestige and Performance Cars Wakefield Ltd, Unit 5, Ossett

£11,090
Was £11,100 Save £10

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

Description includes heated front seats, reversing camera, abs, convertible, cruise control, automatic transmission, heated front seat, leather, parking sensors, parktronic, black, 18in alloy wheels, automatic, anti lock braking system, cd, alloy wheels, diesel...eee