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

449 Mercedes Benz Slk cars under £20,000 - 50 reductions

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Recently reduced (50)

The Lanmere Motor Company, Viewings by appointment only 8a Whitehall Road C, Colchester

£13,450
Was £13,695 Save £245

Mercedes Benz SLK SLK 250 CDI AMG Sport Roadster 7G Automatic * TWO TONE QUILTED LEATHER + AIR SCARF + PAN ROOF *

This model has auto lights, alloy wheels, cruise control, usb, automatic gearbox, led daytime running lights, leather steering wheel, bluetooth, radio, panoramic glass roof, cd, audio 20, leather, stereo, computer, sports suspension, multi function display, heated ...eee

Troon Cars LTD, 33 Wenlock Way, Leicester

£12,450
Was £12,500 Save £50

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

With parktronic, part exchange welcome, locking wheel bolts, automatic gearbox, audio 20, heated front seats, parking sensors, satellite navigation, finance available, rear parking sensors, leather interior, dab radio, rear parking sensor, hpi clear, 2 ke...eee

Prestige Car Supermarket, A19 Crockey Hill, York

£11,999
Was £12,719 Save £720

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

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

Alpino Cars, 568 Wilmslow Road, Manchester

£11,500
Was £12,000 Save £500

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

Includes immobiliser, central locking, voice control, sports suspension, airbag, leather, multi function steering wheel, climate control, alarm system/interior protection/immobiliser, rain sensing wipers, black, pas, abs with brake assist, driver, outside tem...eee

Troon Cars LTD, 33 Wenlock Way, Leicester

£11,450
Was £11,800 Save £350

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

With 18in alloy wheels, dab radio, cd, bluetooth interface, alloy wheels, locking wheel bolts, leather interior, 2 keys, automatic, climate control, automatic headlamp activation, bluetooth, air conditioning, hpi clear, daytime running lights, electric wi...eee

Warrington Jag Centre, Platt Street, Wigan

£10,750
Was £11,750 Save £1,000

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

Features include 12 months mot, service history, black, alloy wheels, warranty, 3 months warranty, automatic, mot, cd...eee

Tower Hill Garage Limited, Cove Road Farnborough, Farnborough

£10,500
Was £11,000 Save £500

Mercedes Benz SLK 1.8 SLK200 AMG Sport

Description includes leather trim, rear parking sensors, black, alloy wheels, parking sensors, sports suspension, bluetooth, air conditioning, leather, sports seats, panoramic glass roof, central locking, heated front seats, multiple airbags, speed limiter, traction cont...eee

Cars of Chichester, A27 Chichester Bypass, Chichester

£10,495
Was £10,995 Save £500

Mercedes Benz SLK SLK250 BLUEEFFICIENCY petrol automatic ULEZ just 49,000m FSH

This car has leather, convertible, automatic, electric windows, black, automatic gearbox, remote central locking, speed limiter, air con, cruise control, cd player, folding mirrors, cd, 2 keys, radio, front fog lamps, power folding mirrors, air conditioning, fron...eee

Vehicle Trade Centre Kilmarnock, 113 Campbell Street, East Ayrshire

£9,999
Was £10,998 Save £999

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

Options include parking sensors, climate control, automatic, sat nav, radio, bluetooth connection, privacy glass, cd, cd player, air con, alloy wheels, front sports seats, remote locking, sports seats, audio, bluetooth, usb connection, electric windows, rear privacy...eee

Mark Hopkins Car Sales, 451 Fair Oak Road, Eastleigh

£9,995
Was £10,995 Save £1,000

Mercedes Benz SLK 1.8 SLK200 KOMPRESSOR 2d 184 BHP

With leather steering wheel, bluetooth system, paddle shift, low mileage, centre console, climate control, air conditioning, esp, fsh, air con, automatic, alloy wheels, folding mirrors, speakers, power steering, multi function steering wheel, passenger, d...eee

449 cars under £20,000

Oakwood (North East) Ltd, , North East

£19,995

Mercedes Benz SLK SLK 280 2dr Tip Auto

Features include electrically adjustable and heated door mirrors, immobiliser, abs with brake assist, front head restraints, tinted glass, brake assist, passenger, cruise control + speed limiter, airbags, automatic, speed limiter, abs, electric windows, green tinted ...eee

DT Performance Cars, Unit 1A, Atherstone

£19,950

Mercedes Benz SLK 5.4 SLK55 AMG 2d 356 BHP

Includes central door locking, pas, adjustable steering column/wheel, computer, electric windows, air bag driver, climate control, electronic stability programme, anti lock brakes, power assisted steering, air bag passenger, leather, speakers, alloy wheels, s...eee

Chelmsford, , South East

£19,948

Mercedes Benz SLK SLK 55 2dr Tip Auto

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

Cavendish UK Car Sales ltd, , East Midlands

£17,995

Mercedes Benz SLK

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

Redgate Lodge, , North East

£17,000

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

Features on this model include cruise control, air conditioning, passenger, audio, driver, radio, bluetooth, abs, alloy wheels, speed limiter, air con, alarm, audio 20, automatic, pas, airbag, brake assist, airbags, dab digital radio, navigation system, anti lock braking system, b...eee

Mark Hopkins Car Sales, , South East

£16,995

Mercedes Benz SLK SLK 250 AMG Sport 2dr Tip Auto

Featuring alarm, audio 20, black, alloys, multi function steering wheel, bluetooth interface, 18in alloy wheels, cd, air conditioning, leather upholstery, parktronic, paddle shift, low mileage, radio cd, immobiliser, airbags, radio, alloy wheels, automatic, da...eee

Northover Cars, , South East

£16,990

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

This model has cruise control, centre console, front side airbags, power assisted steering, immobiliser, automatic, alarm, floor mats, adjustable drivers seat, locking wheel nuts, bluetooth, front electric windows, passenger airbag, radio/cd, central locking, sport...eee

Leslie Cars, , South East

£15,999

Mercedes Benz SLK

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

Appleyard Cars Ltd, , North East

£15,995

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

Description includes satellite navigation, part exchange welcome, paddle shift, immobiliser, rear parking sensors, black, leather, traction control, cup holder, fuel computer, air con, electric door mirrors, air conditioning, computer, parking sensors, wind deflector, he...eee

Craignairn Cars, , Scotland

£15,995

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

Comes with abs, daytime running lights, electronic parking brake, service history, dual stage driver/passenger airbags, full service history, leather, led daytime running lights, immobiliser, leather gear knob, auxiliary input socket, radio, active head restrai...eee

We currently have 449 Mercedes Benz Slk cars available across the UK priced under £20000.

Mercedes Benz Slk budget

Mercedes Benz reduced

170 (1 reductions)
180 (4 reductions)
190 (20 reductions)
200 (13 reductions)
220 (17 reductions)
230 (4 reductions)
250 (7 reductions)
260 (2 reductions)
280 (10 reductions)
300 (4 reductions)
320 (3 reductions)
350 (2 reductions)
450 (1 reductions)
500 (3 reductions)
A Class (2401 reductions)
A Class Saloon (33 reductions)
Amg (52 reductions)
Amg Gt (1 reductions)
Atego (5 reductions)
B Class (383 reductions)
Bmct 690 (1 reductions)
C Class (2615 reductions)
C Class Cabriolet (8 reductions)
C Class Coupe (19 reductions)
C Class Estate (14 reductions)
Ce Class (2 reductions)
Citan (121 reductions)
Cl (42 reductions)
Cla (78 reductions)
Cla Class (611 reductions)
Cla Shooting Brake (15 reductions)
Clc (33 reductions)
Clk (95 reductions)
Cls (218 reductions)
Cls Shooting Brake (1 reductions)
E Class (1683 reductions)
E Class Cabriolet (1 reductions)
E Class Coupe (11 reductions)
E Class Estate (9 reductions)
E Sprinter (1 reductions)
E Vito (3 reductions)
Eqa (14 reductions)
Eqb (7 reductions)
Eqc (76 reductions)
Eqe (5 reductions)
Eqs (5 reductions)
Eqv (1 reductions)
G Class (104 reductions)
G Series (1 reductions)
Gl Class (152 reductions)
Gla (96 reductions)
Gla Class (492 reductions)
Glb (27 reductions)
Glc (547 reductions)
Glc Coupe (18 reductions)
Gle (290 reductions)
Gle Coupe (3 reductions)
Glk Class (3 reductions)
Gls (3 reductions)
Gls Class (3 reductions)
Gt (49 reductions)
M Class (172 reductions)
Ml Class (6 reductions)
Other (1 reductions)
R Class (17 reductions)
S Class (303 reductions)
Sec Class (3 reductions)
Sl Class (300 reductions)
Slc (73 reductions)
Slk (456 reductions)
Slr Mclaren (1 reductions)
Sls (7 reductions)
Sprinter (835 reductions)
Unassigned (1 reductions)
V Class (127 reductions)
V Class Marco Polo (3 reductions)
Vaneo (4 reductions)
Viano (21 reductions)
Vito (236 reductions)
X Class (56 reductions)

Cheap Mercedes Benz Slk cars under £20,000

449 Mercedes Benz Slk cars under £20,000 - 50 reductions

Recently reduced (50)

£13,450 Was £13,695 Save £245

Mercedes Benz SLK SLK 250 CDI AMG Sport Roadster 7G Automatic * TWO TONE QUILTED LEATHER + AIR SCARF + PAN ROOF *

£12,450 Was £12,500 Save £50

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

£11,999 Was £12,719 Save £720

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

£11,500 Was £12,000 Save £500

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

£11,450 Was £11,800 Save £350

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

£10,750 Was £11,750 Save £1,000

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

£10,500 Was £11,000 Save £500

Mercedes Benz SLK 1.8 SLK200 AMG Sport

£10,495 Was £10,995 Save £500

Mercedes Benz SLK SLK250 BLUEEFFICIENCY petrol automatic ULEZ just 49,000m FSH

£9,999 Was £10,998 Save £999

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

£9,995 Was £10,995 Save £1,000

Mercedes Benz SLK 1.8 SLK200 KOMPRESSOR 2d 184 BHP

449 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

£15,995

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

We currently have 449 Mercedes Benz Slk cars available across the UK priced under £20000.

£13,450
Was £13,695 Save £245

£12,450
Was £12,500 Save £50

£11,999
Was £12,719 Save £720

£11,500
Was £12,000 Save £500

£11,450
Was £11,800 Save £350

£10,750
Was £11,750 Save £1,000

£10,500
Was £11,000 Save £500

£10,495
Was £10,995 Save £500

£9,999
Was £10,998 Save £999

£9,995
Was £10,995 Save £1,000