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

477 Mercedes Benz Slk cars under £20,000 - 15 reductions

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Recently reduced (15)

Troon Cars LTD, 33 Wenlock Way, Leicester

£12,300
Was £12,500 Save £200

Mercedes Benz SLK 2.1 SLK250 CDI BLUEEFFICIENCY AMG SPORT 2d 204 BHP

Features on this model include rear parking sensors, audio 20, bluetooth interface, navigation system, heated front seats, locking wheel bolts, rear parking sensor, hpi clear, heated front seat, alloy wheels, bluetooth, automatic gearbox, black, audio, automatic, parktronic, mot, ...eee

Prestige Car Supermarket, A19 Crockey Hill, York

£12,239
Was £12,479 Save £240

Mercedes Benz SLK 2.1 SLK250 CDI BLUEEFFICIENCY AMG SPORT 2d 204 BHP

Options include 18in alloy wheels, diesel, leather, electric windows, tinted glass, heated windscreen, bluetooth connectivity, locking wheel bolts, cup holder, alloy wheels, cup holders, bluetooth, leather upholstery, convertible...eee

Prestige Car Supermarket, A19 Crockey Hill, York

£10,699
Was £11,199 Save £500

Mercedes Benz SLK 2.1 SLK 250 D 2d 201 BHP

Description includes bluetooth interface, wind deflector, automatic gearbox, audio 20, automatic headlamp activation, paddle shift, esp, black, automatic, radio, 17in alloy wheels, heated front seats, electric windows, leather upholstery, bluetooth connectivity, bluetoot...eee

Tower Hill Garage Limited, Cove Road Farnborough, Farnborough

£10,500
Was £11,000 Save £500

Mercedes Benz SLK 1.8 SLK200 AMG Sport

With front fog lights, cruise control with speed limiter, speed limiter, rear parking sensors, daytime running lights, auto lights, service history, alloy wheels, parking sensors, air con, finance available, leather trim, leather, air conditioning, climat...eee

Troon Cars LTD, 33 Wenlock Way, Leicester

£9,950
Was £10,250 Save £300

Mercedes Benz SLK 2.1 SLK 250 D 2d 201 BHP

Featuring usb port, mot, cruise control, alloy wheels, heated seats, usb, dab radio, dab digital radio, automatic, audio 20, bluetooth interface, air con, speakers, multi function display, 17in alloy wheels, part exchange welcome, automatic gearbox, 2 keys, hp...eee

Fir Cottage Cars, 892b Fir Cottage, Mirfield

£9,895
Was £9,995 Save £100

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

With alloys, mot...eee

Shirlton Car Sales, Wolverhampton Road, Cannock

£9,770
Was £9,990 Save £220

Mercedes Benz SLK 1.8 SLK200 BLUEEFFICIENCY AMG SPORT ED125 2d 184 BHP

Features include electric windows, alloy wheels, bluetooth, dab digital radio, tyre pressure loss warning system, leather trim, wind deflector, daytime running lights, alarm, airbags, hill start assist, immobiliser, cd, brake assist, black, usb, driver, spare wheel, ...eee

Troon Cars LTD, 33 Wenlock Way, Leicester

£9,750
Was £9,990 Save £240

Mercedes Benz SLK 1.8 SLK200 AMG SPORT EDITION 2d 184 BHP

Features include automatic headlamp activation, air conditioning, rear parking sensor, wind deflector, bluetooth, 2 keys, part exchange welcome, audio 20, daytime running lights, rear parking sensors, alloy wheels, locking wheel bolts, hpi clear, heated front seat, e...eee

Prestige Car Supermarket, A19 Crockey Hill, York

£9,099
Was £9,199 Save £100

Mercedes Benz SLK 2.1 SLK250 CDI BLUEEFFICIENCY AMG SPORT 2d 204 BHP

With bluetooth interface, electric windows, daytime running lights, wind deflector, spare wheel, automatic gearbox, dab digital radio, bluetooth, audio 20, leather, bluetooth connectivity, tinted glass, automatic, leather upholstery, black, dab radio, met...eee

Woodcote Carriage Company, Ockley Service Station, Near Dorking

£8,995
Was £9,495 Save £500

Mercedes Benz SLK SLK 250 CDI BlueEFFICIENCY AMG Sport 2dr Tip Auto

Features on this model include chrome exhaust tailpipe, electric windows, diesel, electrically adjustable and heated door mirrors, abs, leather gear knob, usb, tinted glass, driver, locking wheel bolts, trip computer, remote boot release, head restraints, speed limiter, airbag, le...eee

477 cars under £20,000

Oakwood (North East) Ltd, , North East

£19,995

Mercedes Benz SLK SLK 280 2dr Tip Auto

Featuring green tinted glass, abs with brake assist, speed limiter, electric windows, esp, immobiliser, automatic, dual stage driver/passenger airbags, front head restraints, alarm system/interior protection/immobiliser, cruise control + speed limiter, driver,...eee

DT Performance Cars, Unit 1A, Atherstone

£19,950

Mercedes Benz SLK 5.4 SLK55 AMG 2d 356 BHP

This car has climate control, passenger, electric windows (front), central door locking, electric windows, air bag, adjustable steering column, electronic stability programme, leather, driver, power assisted steering, steering wheel mounted controls, immobiliser,...eee

Chelmsford, , South East

£19,948

Mercedes Benz SLK SLK 55 2dr Tip Auto

This model has park distance control, climate control, 2 owners, dab radio, esp, radio, sat nav, full service history, folding mirrors, bluetooth, aluminium trim, 4x4, black, service history, alloys...eee

Cavendish UK Car Sales ltd, , East Midlands

£17,995

Mercedes Benz SLK

Comes with auto climate control, full service history, excellent bodywork, black, climate control, mot, sports suspension, low mileage, warranty, bluetooth, speakers, alloy wheels, service history, hpi clear, wind deflector, parktronic, 12 months mot, bluetooth...eee

Redgate Lodge, , North East

£17,000

Mercedes Benz SLK SLK 200 [2.0] AMG Sport 2dr Tip Auto

This model has automatic, bluetooth interface, pas, brake assist, air con, bluetooth, radio, airbag, air conditioning, driver, speed limiter, daytime running lights, alarm, abs, cruise control, audio 20, navigation system, alloy wheels, anti lock braking system, pa...eee

Mark Hopkins Car Sales, , South East

£16,995

Mercedes Benz SLK SLK 250 AMG Sport 2dr Tip Auto

Comes with leather upholstery, parktronic, leather, usb, folding mirrors, multi function steering wheel, fsh, immobiliser, audio 20, paddle shift, bluetooth, brake assist, daytime running lights, air con, driver, radio cd, alloy wheels, alarm, led daytime runni...eee

Northover Cars, , South East

£16,990

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

This model has passenger airbag, remote central locking, immobiliser, radio, airbags, passenger, sports seats, air conditioning, solid paint, tyre repair kit, leather, radio/cd, audio remote control, speed limiter, service interval indicator, alarm, drivers airbag,...eee

Leslie Cars, , South East

£15,999

Mercedes Benz SLK

Description includes space saver spare wheel, radio, sat nav, automatic, cruise control, alloy wheels, panoramic roof, leather, spare wheel, dab radio, leather seats, 2 keys, service history, warranty, convertible, mot, part exchange welcome...eee

Appleyard Cars Ltd, , North East

£15,995

Mercedes Benz SLK SLK 250 CDI BlueEFFICIENCY AMG Sport 2dr Tip Auto

Includes fuel computer, daytime running lights, spare wheel, air conditioning, air bag, leather, sunroof, part exchange welcome, cup holders, black, cup holder, heated front seats, wind deflector, satellite navigation, rear parking sensor, leather steering wh...eee

Northover Cars, , South East

£15,990

Mercedes Benz SLK SLK 250 CDI BlueEFFICIENCY AMG Sport 2dr Tip Auto

Description includes heated door mirrors, bluetooth, air con, electronic stability programme (esp), driver airbag, brake assist, adjustable drivers seat, pas, front electric windows, cd radio, dab radio, cruise control, airbag, cd, leather steering wheel, passenger, powe...eee

We currently have 477 Mercedes Benz Slk cars available across the UK priced under £20000.

Mercedes Benz Slk budget

Mercedes Benz reduced

180 (4 reductions)
190 (21 reductions)
200 (12 reductions)
220 (20 reductions)
230 (4 reductions)
250 (5 reductions)
260 (2 reductions)
280 (10 reductions)
300 (6 reductions)
320 (3 reductions)
350 (2 reductions)
450 (1 reductions)
500 (3 reductions)
A Class (2919 reductions)
A Class Saloon (87 reductions)
Amg (51 reductions)
Amg Gt (1 reductions)
Atego (8 reductions)
B Class (438 reductions)
C Class (2987 reductions)
C Class Cabriolet (14 reductions)
C Class Coupe (27 reductions)
C Class Estate (38 reductions)
Ce Class (2 reductions)
Citan (124 reductions)
Cl (43 reductions)
Cla (194 reductions)
Cla Class (695 reductions)
Cla Shooting Brake (35 reductions)
Clc (31 reductions)
Cle (3 reductions)
Clk (97 reductions)
Cls (227 reductions)
Cls Shooting Brake (1 reductions)
E Class (1865 reductions)
E Class Cabriolet (12 reductions)
E Class Coupe (17 reductions)
E Class Estate (12 reductions)
E Sprinter (1 reductions)
E Vito (4 reductions)
Eqa (14 reductions)
Eqb (10 reductions)
Eqc (73 reductions)
Eqe (10 reductions)
Eqs (5 reductions)
Eqv (2 reductions)
G Class (116 reductions)
G Series (1 reductions)
Gl Class (150 reductions)
Gla (129 reductions)
Gla Class (562 reductions)
Glb (42 reductions)
Glc (681 reductions)
Glc Coupe (44 reductions)
Gle (402 reductions)
Gle Coupe (22 reductions)
Glk Class (3 reductions)
Gls (12 reductions)
Gls Class (5 reductions)
Gt (43 reductions)
M Class (183 reductions)
Ml Class (6 reductions)
Other (1 reductions)
R Class (15 reductions)
S Class (333 reductions)
S Class Coupe (1 reductions)
Sec Class (3 reductions)
Sl Class (326 reductions)
Slc (76 reductions)
Slk (485 reductions)
Slr Mclaren (1 reductions)
Sls (7 reductions)
Sprinter (875 reductions)
Unassigned (2 reductions)
V Class (146 reductions)
V Class Marco Polo (4 reductions)
Vaneo (4 reductions)
Viano (23 reductions)
Vito (262 reductions)
X Class (66 reductions)

Cheap Mercedes Benz Slk cars under £20,000

477 Mercedes Benz Slk cars under £20,000 - 15 reductions

Recently reduced (15)

£12,300 Was £12,500 Save £200

Mercedes Benz SLK 2.1 SLK250 CDI BLUEEFFICIENCY AMG SPORT 2d 204 BHP

£12,239 Was £12,479 Save £240

Mercedes Benz SLK 2.1 SLK250 CDI BLUEEFFICIENCY AMG SPORT 2d 204 BHP

£10,699 Was £11,199 Save £500

Mercedes Benz SLK 2.1 SLK 250 D 2d 201 BHP

£10,500 Was £11,000 Save £500

Mercedes Benz SLK 1.8 SLK200 AMG Sport

£9,950 Was £10,250 Save £300

Mercedes Benz SLK 2.1 SLK 250 D 2d 201 BHP

£9,895 Was £9,995 Save £100

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

£9,770 Was £9,990 Save £220

Mercedes Benz SLK 1.8 SLK200 BLUEEFFICIENCY AMG SPORT ED125 2d 184 BHP

£9,750 Was £9,990 Save £240

Mercedes Benz SLK 1.8 SLK200 AMG SPORT EDITION 2d 184 BHP

£9,099 Was £9,199 Save £100

Mercedes Benz SLK 2.1 SLK250 CDI BLUEEFFICIENCY AMG SPORT 2d 204 BHP

£8,995 Was £9,495 Save £500

Mercedes Benz SLK SLK 250 CDI BlueEFFICIENCY AMG Sport 2dr Tip Auto

477 cars under £20,000

£19,995

Mercedes Benz SLK SLK 280 2dr Tip Auto

£19,950

Mercedes Benz SLK 5.4 SLK55 AMG 2d 356 BHP

£19,948

Mercedes Benz SLK SLK 55 2dr Tip Auto

£17,995

Mercedes Benz SLK

£17,000

Mercedes Benz SLK SLK 200 [2.0] AMG Sport 2dr Tip Auto

£16,995

Mercedes Benz SLK SLK 250 AMG Sport 2dr Tip Auto

£16,990

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

£15,999

Mercedes Benz SLK

£15,995

Mercedes Benz SLK SLK 250 CDI BlueEFFICIENCY AMG Sport 2dr Tip Auto

£15,990

Mercedes Benz SLK SLK 250 CDI BlueEFFICIENCY AMG Sport 2dr Tip Auto

We currently have 477 Mercedes Benz Slk cars available across the UK priced under £20000.

£12,300
Was £12,500 Save £200

£12,239
Was £12,479 Save £240

£10,699
Was £11,199 Save £500

£10,500
Was £11,000 Save £500

£9,950
Was £10,250 Save £300

£9,895
Was £9,995 Save £100

£9,770
Was £9,990 Save £220

£9,750
Was £9,990 Save £240

£9,099
Was £9,199 Save £100

£8,995
Was £9,495 Save £500