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

145 Mercedes Benz Slk cars under £20,000 - 43 reductions

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Recently reduced (43)

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 air bag, anti lock brakes, cruise control, steering wheel mounted controls, immobiliser, driver, leather, adjustable steering column, heated seats, alarm, bluetooth, full service history, electronic stability programme, exterior lighting, central doo...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 electric windows, central door locking, driver, adjustable steering column, electric windows (front), immobiliser, alarm, black, air bag passenger, pas, power assisted steering, speakers, electronic stability programme, leather, alloy wheels, adjusta...eee

Prime Motors, Rear of Unit 12,, Hoddesdon

£18,489
Was £18,749 Save £260

Mercedes Benz SLK 5.5 SLK55 V8 AMG Convertible 2dr Petrol SpdS MCT Euro 5 (s/s) (421 ps)

Features on this model include manual, parking sensors, voice control, usb, rear parking sensors, heated front seat, pas, cruise control, driver, air con, immobiliser, navigation system, cd radio, tinted glass, headlight wash, alarm, alloy wheels, leather, remote boot release, pow...eee

Eclipse Car Sales Limited, 89 Main Road, Winchester

£13,295
Was £13,449 Save £154

Mercedes Benz SLK 2.1 SLK 250 D AMG SPORT 2d 201 BHP

With dab radio, airbag, daytime running lights, bluetooth interface, air con, abs, audio, climate control, multi function steering wheel, leather interior, black, alarm, leather, parking sensors, convertible, anti lock braking system, bluetooth, driver, p...eee

Prestige Car Supermarket, A19 Crockey Hill, York

£12,999
Was £13,499 Save £500

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

Comes with sports suspension, air conditioning, air con, alloys, anti lock braking system, leather, black, audio, pas, cruise control, radio, airbag, cd, automatic, alloy wheels, abs, sports seats, 18in alloy wheels, diesel, dab radio, mot, alarm, passenger, au...eee

Troon Cars LTD, 33 Wenlock Way, Leicester

£11,500
Was £11,990 Save £490

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

With part exchange welcome, heated front seat, alarm, third brake light, alloy wheels, navigation system, air conditioning, dab radio, speed limiter, heated front seats, head restraints, audio, 18in alloy wheels, bluetooth interface, air con, dab digital ...eee

Andrews of Otterbourne, Norlands Drive, Winchester

£10,495
Was £10,995 Save £500

Mercedes Benz SLK 3.0 SLK280 7G Tronic 2dr

Options include speakers, anti lock brakes, steering wheel mounted controls, air bag, fog lights, pas, traction control system, upholstery cloth, air con, black, leather, side protection mouldings, alloy wheels, fsh, tinted glass, cruise control, computer, central d...eee

Manor Garage, Crossroads Farm, Kingsdown, Box

£9,750
Was £9,950 Save £200

Mercedes Benz SLK SLK 200 BlueEFFICIENCY AMG Sport 2dr Tip Auto

Features on this model include speakers, electronic stability programme, alarm, remote boot release, cd, bluetooth, sports suspension, 18in alloy wheels, usb, wind deflector, automatic headlamp activation, automatic, air conditioning, navigation system, radio, air con, dab digital...eee

Garage on the Green, The Green, St. Leonards-On-Sea

£9,495
Was £11,495 Save £2,000

Mercedes Benz SLK 2.1 SLK250 CDI BlueEfficiency AMG Sport G Tronic+ Euro 5 (s/s) 2dr Only 39000 Miles

With automatic, wind deflector, tinted glass, esp, locking wheel bolts, radio, passenger, speakers, alarm, navigation system, bluetooth, immobiliser, pas, spare wheel, audio 20, anti lock braking system, abs, cd, electronic stability programme, airbags, a...eee

Bespoke Car Sales Ltd, Revers Street, Bury

£9,495
Was £9,995 Save £500

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

Options include brake assist, radio, mot, full service history, driver, leather, audio, convertible, alloy wheels, hpi clear, alloys, pas, passenger, 18in alloy wheels, automatic, air conditioning, warranty, alarm, diesel, satellite navigation, airbag, abs, air con,...eee

145 cars under £20,000

Daniel Alexander Motor Group Limited, Melton Lane Signal Box, North Ferriby

£19,991

Mercedes Benz SLK 5.4 SLK55 V8 AMG Convertible 2dr Petrol G Tronic Euro 4 (360 ps)

Featuring auto climate control, full service history, audio 20, passenger, radio, centre console storage, audio, bluetooth, climate control, centre console, speakers, service history, pas, bluetooth interface, alloys, mp3 compatible, bluetooth system, wind def...eee

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