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 heated seats, adjustable steering column, cruise control, anti lock brakes, driver, climate control, steering wheel mounted controls, immobiliser, steering wheel leather, full service history, alarm, computer, leather, adjustable steering column/whee...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)

Featuring driver, alloy wheels, pas, adjustable steering column/wheel, adjustable steering column, alarm, steering wheel mounted controls, passenger, electric windows (front), speakers, computer, air bag, anti lock brakes, electric windows, power assisted stee...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

Features include usb, bluetooth, head restraints, pas, electric windows, automatic, computer, leather gear knob, speed limiter, bluetooth system, automatic headlamp activation, sports seats, dual stage driver/passenger airbags, chrome exhaust tailpipe, alloy wheels, ...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 audio, speed limiter, rear parking sensor, finance available, climate control, leather interior, radio, 18in alloy wheels, air con, diesel, cruise control, bluetooth interface, low mileage, part exchange welcome, sat nav, navigation system, automatic...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 heated seats, hpi clear, black, alloy wheels, anti lock braking system, leather interior, automatic gearbox, automatic, rear parking sensors, leather, 18in alloy wheels, sat nav, radio, parking sensors, airbag, navigation system, petrol, climate cont...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)

Features on this model include anti lock braking system, full service history, airbags, leather interior, passenger, parking sensors, air con, dab radio, airbag, heated front seat, black, bluetooth, cruise control, driver, 18in alloy wheels, sat nav, radio, heated seats, leather, ...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)

Features include alloy wheels, service history, bluetooth, heated seats, parking sensors, 1 owner, airbag, alarm, audio 20, black, audio, radio, pas, passenger, air conditioning, dab radio, sat nav, abs, driver, leather, cruise control, 18in alloy wheels, air con, le...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

Includes green tinted glass, service indicator, automatic headlamp activation, locking wheel bolts, multi function steering wheel, radio, heated door mirrors, leather gear knob, dual stage driver/passenger airbags, active head restraints, electronic parking b...eee

GRS Cars, 45 Lancaster Road, Melksham

£11,995
Was £12,395 Save £400

Mercedes Benz SLK SLK 250 D AMG SPORT AUTO

Description includes leather interior, warranty, automatic, low mileage, radio, pas, passenger, navigation system, driver, bluetooth, air conditioning, leather, alloy wheels, anti lock braking system, audio, air con, abs, brake assist, bluetooth interface, mot, airbags, ...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)

Featuring driver, daytime running lights, climate control, alloy wheels, radio, cruise control, leather seats, hpi clear, usb, 18in alloy wheels, bluetooth, leather, electric windows, black, electric mirrors, led daytime running lights, alloys, cd, mot, servic...eee