bmw

BMW 4 Series Convertible

420i M Sport 2dr Step Auto [Tech Pack]

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BMW 4 SERIES CONVERTIBLE M Sport
Model Shown is for illustration purposes only.
Free UK mainland delivery
Easy and Convenient
100's of makes and models
Trading since 1969

Key Information

Fuel Type

Petrol

Transmission

Automatic

CO2

155g/km

0 to 62

Secs

DRIVER CONVENIENCE
£600.00
No cost
ENGINE/DRIVETRAIN/SUSPENSION
£450.00
No cost
ENTERTAINMENT
£850.00
£375.00
No cost
EXTERIOR FEATURES
£1525.00
£4385.00
£1725.00
£4385.00
No cost
No cost
No cost
No cost
£275.00
No cost
£1000.00
INTERIOR FEATURES
£500.00
£1025.00
£425.00
£250.00
No cost
No cost
£325.00
PACKS
£900.00
No cost
£1250.00
PAINTWORK
£4385.00
£1725.00
£1725.00
£4385.00
£875.00
£875.00
£875.00
£875.00
£875.00
£875.00
No cost
TRIM
No cost
£175.00
£1025.00
£1025.00
£1025.00
£550.00
£100.00
£175.00
No cost
No cost
No cost
No cost
No cost
No cost
No cost
£325.00
WHEELS
No cost
£1750.00
£1750.00
DRIVER CONVENIENCE
  • Active guard plus
  • Attentiveness assist
  • Auto start-stop
  • Bluetooth hands free facility with USB audio interface with audio streaming
  • BMW ConnectedDrive online services
  • BMW service history
  • BMW Teleservices
  • Brake pad wear indicator in front and rear
  • Check Control warning system for monitoring of lights and door/luggage compartment open warning
  • Condition based service
  • Electric power steering with Servotronic steering optimised at all speed ranges
  • Gearshift time display in manual mode
  • iDrive controller on centre console
  • Instrument cluster with speedometer with mph readout, tachometer, fuel gauge and oil temperature gauge
  • Integrated owners handbook
  • Oil sensor for level and grade, warning by check control system
  • On board computer - average speed, fuel consumption, outside temp display with acoustic warning, clock/date, service interval, odometer/trip meter
  • Optimum shift indicator
  • Run flat indicator
  • Shifting point display
  • Smartphone integration compatible with Apple CarPlay and Android Auto
  • Variable sport steering
  • Cruise control with speed limit function (Available as no-cost option)
ENGINE/DRIVETRAIN/SUSPENSION
  • 8 speed automatic steptronic transmission with gearshift paddles
  • Balanced 50/50 weight distribution
  • Double joint spring strut front axle
  • Double VANOS
  • Drive performance control - ECO PRO, comfort and sport modes
  • High precision injection
  • Low centre of gravity
  • Petrol Particulate Filter
  • Stroke dependent dampers
  • VALVETRONIC engine management
  • M sport suspension (Available as no-cost option)
ENTERTAINMENT
  • 1x USB type A for data transfer and 1.5 Amp charging function in the centre console
  • 1x USB type C for 3 Amp charging function in the front centre console
  • DAB tuner
  • Electronic service booklet
  • Stereo 6 speaker system with 2 mid range speakers in the front and rear door trims + 2 central bass speakers underneath the front seats (Available as no-cost option)
EXTERIOR FEATURES
  • Acoustic glazing
  • Automatic headlight beam throw control with load dependent regulating reaction, dynamic compensation of braking dive and acceleration squat
  • Automatic windscreen wipers and automatic headlight
  • Automatically dimming electrochromatic rear view mirror
  • BMW emblem on engine compartment lid and tailgate
  • BMW kidney grille with mesh grille front side of the nuggets in matt aluminium and frame in chrome high gloss
  • Body colour fuel filler flap
  • Body colour roof fin
  • Brushed aluminium inserts in the front door sill finishers with BMW designation
  • Door sill strips
  • Dynamic brake lights
  • Electric windows - front and rear, with open/close fingertip control, anti trap facility and comfort closing function all round
  • Exterior mirrors - electrically folding with anti-dazzle
  • Fading support
  • Follow me home headlights
  • Front and rear bumper system
  • Front apron plastic in body colour
  • Green tinted heat protection glazing
  • High gloss shadow line exterior trim
  • Illuminated bow type door handles in body colour drivers side with door lock
  • Interior rear view electrochromatic mirror with automatic anti dazzle function
  • LED daytime running lights
  • LED front fog lights
  • LED front indicators
  • Licence plate panel integrated into front bumper and tailgate
  • Lightweight engineering
  • M designation on front side panels, left and right
  • One piece front bumper cover including towing eye cover in body colour
  • Preparation for high beam assistant
  • Rear boot
  • Reversing light
  • Side frame decorative moulding black matt
  • Third brake light
  • Two part LED tailights in L-shape with components in smoked glass, brake light, LED turn indicator and rear fog light
  • Visible exhaust tailpipe finisher
  • Visible VIN plate
  • Welcome lights in interior and door handle area
  • Widened track and increased camber values for max transverse dynamics, agility and steering precision
  • Wind deflector
  • Window recess finisher strip in matt black
  • Windscreen wipers with integrated heated washing jets
  • Low and high beam headlights in Bi-LED (Available as no-cost option)
  • Model designation on right side of tailgate (Available as no-cost option)
  • Soft top - Black (Available as no-cost option)
INTERIOR FEATURES
  • 12V power socket in front centre console
  • 2 2nd row folding seats
  • 2 front cupholder in centre console with clamping elements and matt black inlay
  • 2 Rear seat headrests
  • 2nd row centre armrest with built-in cupholders
  • 3 spoke flat bottom M sport leather multifunction steering wheel
  • 3 zone automatic air conditioning
  • 4 pieces lashing eyelets in luggage compartment
  • Anthracite headlining
  • Armrest integrated in front and rear door trim + front centre console armrest
  • Battery in luggage compartment
  • BMW ID
  • Driver seat backrest width adjustment
  • Electric seat adjustment with memory
  • Extended storage, Luggage compartment seprating net on side trim left and right, Bag hook on both side
  • Front and rear door pockets
  • Front and rear reading lights
  • Front sport seats
  • Heated driver and front passenger seats
  • Height adjustable front headrests
  • Height adjustable mechanically and infinitely variable steering column
  • Illuminated armrest storage compartment
  • Illuminated glove compartment with separate small compartment
  • Luggage compartment light
  • Make-up mirror lights
  • Single front passenger seat
  • Storage compartment in rear centre console
  • Sunvisors with illuminated vanity mirrors and ticket pocket
  • Toolkit located in luggage compartment
  • Velour front floor mats
  • Vernasca leather upholstery (Available as no-cost option)
PACKS
  • Ambient lighting pack - 4 Series
  • Connected professional package - 4 Series
  • M sport exterior styling pack - 4 Series
  • Technology pack I - 4 Series (Available as no-cost option)
    Front collision warning with brake intervention
    Lane change warning
    Lane departure warning with lane return
    Lateral parking aid
    Parking assistant with active park distance control
    Rear collision prevention
    Rear crossing traffic warning
    Remote view 3D
    Reversing assistant
    Speed limit info display
    Surround view camera system">Pack contents
PASSIVE SAFETY
  • 2 x 3-point rear seat belts
  • Battery safety cut-off
  • BMW emergency call
  • Brake energy regeneration
  • Braking pre-tensioning
  • Child seat ISOFIX attachment for the two outer rear seats
  • Coasting in idle in ECO PRO mode
  • Cornering brake control (CBC)
  • Crash sensor activating of airbags,Unlocking doors,hazard warning lights,fuel cut off,interior lighting+activation of safety battery terminal clamp
  • Driver and front passenger side airbags, integrated in the door side seat backrest bolsters for all seat variants
  • Driver/Front Passenger airbags
  • Dry braking
  • Dynamic brake control
  • Dynamic stability control + (DSC+) - Anti-lock Braking System (ABS) with brake assist and cornering brake control + Automatic Stability Control (ASC)
  • Dynamic Traction Control - DTC
  • Electromechanical parking brake including automatic hold function and automatic release of the parking brake when pulling away
  • Electronic differential lock control (EDLC)
  • Front and rear ventilated brake disc
  • Front passenger manual airbag deactivation
  • Head airbags for all 4 outer seats
  • Hill start assistant
  • Seat belt security check for driver and front passenger
  • Seat belt with belt stopper, pyrotechnic belt tensioners and belt force limiters
  • Seat occupancy detection for driver and passenger side
  • Side impact protection
  • Tyre pressure monitoring with three level warning strategy
  • Warning triangle and first aid kit
SECURITY
  • Alarm system (Thatcham 1) with remote control and electronic engine immobiliser
  • Central locking switch for all doors, fuel filler cap and luggage compartment
  • Locking wheel bolts
  • Remote control with integrated key one button open/close vehicle and windows, sole opening of the luggage compartment lid and panic mode
  • Start/stop button with Comfort Go keyless engine start and auto Start/stop deactivation button
  • Vehicle key with M specific designation
TRIM
  • Sensatec instrument panel
  • Aluminium rhombicle interior trim (Available as no-cost option)
WHEELS
  • Tyre repair kit
  • 18" Double spoke bicolour jet black light alloy wheels - Style 848M (Available as no-cost option)
EMISSIONS - ICE
  • CO:0.237

  • HC:0.018

  • HC+NOx:Not Available

  • NOx:0.018

  • Particles:0.0002

  • Standard Euro Emissions:EURO 6

  • WLTP - CO2 (g/km) - Comb:155

  • WLTP - CO2 (g/km) - Comb - TEH:170

  • WLTP - CO2 (g/km) - Comb - TEL:154

  • WLTP - CO2 (g/km) - Extra High:150

  • WLTP - CO2 (g/km) - Extra High - TEH:158

  • WLTP - CO2 (g/km) - Extra High - TEL:150

  • WLTP - CO2 (g/km) - High:133

  • WLTP - CO2 (g/km) - High - TEH:139

  • WLTP - CO2 (g/km) - High - TEL:133

  • WLTP - CO2 (g/km) - Low:213

  • WLTP - CO2 (g/km) - Low - TEH:219

  • WLTP - CO2 (g/km) - Low - TEL:212

  • WLTP - CO2 (g/km) - Medium:157

  • WLTP - CO2 (g/km) - Medium - TEH:164

  • WLTP - CO2 (g/km) - Medium - TEL:156

ENGINE AND DRIVE TRAIN
  • Camshaft:DOHC

  • Catalytic Convertor:Yes

  • CC:1998

  • Compression Ratio:11.0:1

  • Cylinder Layout:IN-LINE

  • Cylinders:4

  • Cylinders - Bore (mm):82

  • Cylinders - Stroke (mm):94.6

  • Engine Code:B48B20M1

  • Engine Layout:NORTH SOUTH

  • Fuel Delivery:TURBO INJECTION

  • Gears:8 SPEED

  • Number of Valves:16

  • Transmission:SEMI-AUTO

FUEL CONSUMPTION - ICE
  • EC Directive 1999/100/EC Applies:No

  • WLTP - FC (l/100km) - Comb:6.8

  • WLTP - FC (l/100km) - Comb - TEH:7.1

  • WLTP - FC (l/100km) - Comb - TEL:6.8

  • WLTP - FC (l/100km) - Extra High:6.6

  • WLTP - FC (l/100km) - Extra High - TEH:6.9

  • WLTP - FC (l/100km) - Extra High - TEL:6.6

  • WLTP - FC (l/100km) - High:5.8

  • WLTP - FC (l/100km) - High - TEH:6.1

  • WLTP - FC (l/100km) - High - TEL:5.8

  • WLTP - FC (l/100km) - Low:9.3

  • WLTP - FC (l/100km) - Low - TEH:9.6

  • WLTP - FC (l/100km) - Low - TEL:9.3

  • WLTP - FC (l/100km) - Medium:6.9

  • WLTP - FC (l/100km) - Medium - TEH:7.2

  • WLTP - FC (l/100km) - Medium - TEL:6.9

  • WLTP - MPG - Comb:41.5

  • WLTP - MPG - Comb - TEH:39.8

  • WLTP - MPG - Comb - TEL:41.5

  • WLTP - MPG - Extra High:42.8

  • WLTP - MPG - Extra High - TEH:40.9

  • WLTP - MPG - Extra High - TEL:42.8

  • WLTP - MPG - High:48.7

  • WLTP - MPG - High - TEH:46.3

  • WLTP - MPG - High - TEL:48.7

  • WLTP - MPG - Low:30.4

  • WLTP - MPG - Low - TEH:29.4

  • WLTP - MPG - Low - TEL:30.4

  • WLTP - MPG - Medium:40.9

  • WLTP - MPG - Medium - TEH:39.2

  • WLTP - MPG - Medium - TEL:40.9

GENERAL
  • Alternative Fuel Qualifying:No

  • Badge Engine CC:2.0

  • Badge Power:184

  • Based On ID:Not Available

  • Coin Description:i

  • Coin Series:M Sport [Tech pk]

  • Generation Mark:2

  • Insurance Group 1 - 50 Effective January 07:32E

  • NCAP Adult Occupant Protection %:97

  • NCAP Child Occupant Protection %:83

  • NCAP Overall Rating - Effective February 09:5

  • NCAP Pedestrian Protection %:93

  • NCAP Safety Assist %:72

  • Did at least one aspect of this vehicle's safety give cause for concern?:No

  • Service Interval Frequency - Months:24

  • Service Interval Mileage:18000

  • Special Edition:No

  • Special Order:No

  • Standard manufacturers warranty - Mileage:Unlimited

  • Standard manufacturers warranty - Years:3

  • Timing Belt Interval Frequency - Months:Not Available

  • Timing Belt Interval Mileage:Not Available

  • Vehicle Homologation Class:M1

PERFORMANCE
  • 0 to 62 mph (secs):8.2

  • Engine Power - BHP:184

  • Engine Power - KW:135

  • Engine Power - RPM:5000

  • Engine Torque - LBS.FT:221

  • Engine Torque - MKG:30.6

  • Engine Torque - NM:300

  • Engine Torque - RPM:1350

  • Top Speed:147

TEST CYCLES
  • Emissions Test Cycle:WLTP

  • RDE Certification Level:RDE 2

TYRES
  • Alloys?:Yes

  • Space Saver?:No

  • Tyre Size Front:225/45 R18

  • Tyre Size Rear:255/40 R18

  • Tyre Size Spare:TYRE REPAIR KIT

  • Wheel Style:DOUBLE SPOKE STYLE 848M

  • Wheel Type:18" ALLOY

VEHICLE DIMENSIONS
  • Height:1384

  • Height (including roof rails):Not Available

  • Length:4768

  • Wheelbase:2851

  • Width:1852

  • Width (including mirrors):2081

WEIGHT AND CAPACITIES
  • Fuel Tank Capacity (Litres):59

  • Gross Vehicle Weight:2185

  • Luggage Capacity (Seats Down):Not Available

  • Luggage Capacity (Seats Up):385

  • Max. Loading Weight:495

  • Max. Roof Load:Not Available

  • Max. Towing Weight - Braked:1600

  • Max. Towing Weight - Unbraked:750

  • Minimum Kerbweight:1690

  • No. of Seats:4

  • Turning Circle - Kerb to Kerb:11.4

By Line

BMW's 4 Series Convertible has more individual appeal in second generation form. Jonathan Crouch takes a look.

Ten Second Review

BMW's second generation 4 Series Convertible switches to a fabric-folding roof and so can now offer a more credible alternative option to executive segment mid-sized cabriolet buyers not already swayed by the competing charms of rival open-topped versions of the Audi A5 and Mercedes C-Class. You won't get the large boot and cutting-edge driving dynamics of the 4 Series Coupe, but compensations come in the form of refinement, security and drop-top desirability. You'd like one.

Background

Sharper than its predecessor and echoing the bold style of its 4 Series Coupe showroom stablemate, BMW's second generation 4 Series Convertible aims to blend sporting driving pleasure and open-air thrills to continue the 35-year legacy in this model class that began with the Munich maker's first 3 Series Convertible. As before, it sizes up to the same two segment arch-rivals, Audi's A5 Convertible and the Mercedes C-Class Cabriolet - and does so now more directly thanks to the adoption of a fabric roof. And plenty of changes under the skin aim to make it a bit more of a driver's car than before.

Driving Experience

BMW has worked hard to ensure that this 4 Series Convertible's handling is as close to that of the equivalent Coupe as possible, using extra bracing and special panels to improve body rigidity, which the company says is 4% better than the previous generation metal-topped model. As usual with this model range, there's rear wheel drive and xDrive 4WD for the fastest models (though this AWD system isn't available with lesser engines as it is on the Coupe). Plus there's a freshly developed double-jointed spring-strut front suspension and a 5-link rear axle. Engine-wise, the key news is introduction of 48V mild hybrid tech for the 2.0-litre 184hp diesel engine in the volume 420d. The same mild hybrid tech also features with the six cylinder diesels, the 430d (286hp) and the M440d (340hp). And it's on the quickest mainstream conventional petrol variant too, the six cylinder 374hp M440i xDrive, which features BMW's Sport differential, with electronically-controlled, fully-variable locking function in the rear differential, all of this helping to get the power down through the turns, should you want to drive this car in the kind of enthusiastic manner a likely owner hardly ever would. If you do want the ultimate fast version of this car, you'll be directed to the top M4 Competition M xDrive Convertible model, which has 510hp and gets to 62mph in just 3.7s. Toupees will need to be very firmly tied down. Back in the real world, two conventional 2.0-litre petrol turbo 4 Series Convertible models also feature, the 420i (184hp) and the 430i (258hp). All the engines link up as standard with eight-speed Steptronic auto transmission, which can now be specified with a new optional Sprint function.

Design and Build

No doubt about the main talking point here. The rather inevitable switch from the previous model's metal hard top roof to the same kind of folding fabric top that rivals Audi and Mercedes offer. That means a 40% reduction in roof weight from a soft top that uses panel bow elements and a glass rear window for optimum acoustic and thermal comfort. The electric folding roof takes 18 seconds to open or close and can be used at speeds of up to 31mph. Otherwise, as with the Coupe version of this model, the key change is the adoption of a more vertical upright kidney grille, intended to reference classic BMWs like the pre-war 328 sports car. It's a move that's evoked a mixed reaction from brand loyalists, but as Design chief Domagoj Dukec points out, until the 1980s, the grille is on BMWs were always more vertical than horizontal. Inside, the cabin follows some of the latest BMW design trends, with a revised dash layout including a smarter drive selector and a start button in the centre console. The 'BMW Live Cockpit Professional' dash set-up is standard, offering a fully digital screen layout that gives you a high-resolution 12.3-inch instrument cluster behind the steering wheel and a 10.25-inch iDrive infotainment Central Control Display. There are also re-designed sports seats and the option of a re-designed head-up display. As before, this is billed as a 'proper four-seater', though the rear seat isn't as comfortable as in the Coupe. Predictably, there's not as much boot space either, the Coupe variant's 440-litre capacity figure falling to 385-litres with the roof closed and 300-litres with the top down.

Market and Model

Sporty 'M Sport' trim is standardised this time round and prices start from around £46,000 for the entry-level 420i, which means a big price premium of almost £6,000 over the equivalent Coupe model. There's a further premium of around £2,200 if you want the 420d diesel version. You're looking at around £50,000 for a 430i. And think in terms of around £60,000 if you want the M440i xDrive model. The top M4 Competition Convertible M xDrive model is around £82,000. Across the range as an option, there's an 'M Sport Pro' package which includes a special 'Sprint' function for additional bursts of speed and a sporty engine soundtrack in the cabin when the 'SPORT' driving mode is activated. Plus you get M sport brakes, 19-inch 'M light' alloy wheels, a rear spoiler in a high-gloss black, BMW individual high-gloss 'Shadowline' trim with extended features and BMW individual lights and M seat belts. You might also be interested in a browse through the M Performance Parts portfolio, from which you can order things like 20-inch M Performance forged light alloy wheels in a Y-spoke design with a Jet Black matt finish. Or maybe a carbon fibre finish for the front grille, front splitter and side skirts, as well as aero flicks for the front apron in high-gloss black.

Cost of Ownership

Mild hybrid technology has been included with all diesel engines and with the straight-six petrol unit of the flagship BMW M440i xDrive Convertible. Fitting a 48V starter-generator and second battery greatly increases the scope for utilising Brake Energy Regeneration and the electrical power it produces. The recuperated energy collected by the 48V battery can be supplied to the 12V electrical system or used for generating additional drive power when fed back to the 48V starter-generator. When the car is accelerating, the generator is also able to offer the driver an electric boost effect that instantly makes an extra 11hp available. All of which should promise a very competitive set of efficiency stats. Let's see. We'll start with the petrol models. The 420i manages up to 49.6mpg on the combined cycle and up to 131g/km of CO2. For the 430i version, the figures are up to 47.1mpg and up to 138g/km. For the M440i xDrive, the figures are up to 40.9mpg and up to 159g/km. What about the diesels? For the 420d, the official figures are up 67.3mpg and up to 111g/km. For the 430d, it's up to 50.4mpg and up to 147g/km. For the M440d xDrive, it's up to 44.8mpg and 165g/km. Finally for the M4 version, it's 27.7mpg and 231g/km.

Summary

Like many of its owners will be, BMW is quietly satisfied with this 4 Series Convertible. Would this car be a more engaging driving machine without the extra weight of its roof mechanicals? The extra sharpness of its 4 Series Coupe stablemate certainly suggests that. I sense though, that most buyers of this open-topped version will be quite happy with a more relaxed, comfortable demeanour. That is, after all, as much as competitors from Audi and Mercedes offer - and those brands can't deliver the engine choice BMW provides here. In fact, a lot of boxes are ticked by this car if you can afford its asking price. You get impressive safety systems, high residual values, above average rear seat legroom and a sheer depth of engineering that rarely fails to impress. As a result, in many ways, it's probably the most complete contender in this segment and, best of all, it looks as striking and expensive as a convertible of this kind should when the sun's out and all is right with the world. True, there are probably all kinds of ways of more sensibly spending the budget required for one of these. You know what though? Right here, right now, I can't really think of any....

Terms & Conditions

  • Initial rental due 7 days after delivery
  • First monthly rental due 30 days after delivery
  • Documentation Fee: £0.00
  • Excess mileage charges available on request
  • Road Fund Licence Included
  • Offer is subject to credit acceptance and proof of ID
  • Terms and Conditions Apply
BMW 4 SERIES CONVERTIBLE M Sport
Model Shown is for illustration purposes only.

Key Information

Fuel Type

Petrol

Transmission

Automatic

CO2

155g/km

0 to 62

Secs

Personal Lease
Initial Rental £7,210.30 inc VAT
£801.14
(inc VAT per month)
Business Lease
Initial Rental £6,008.58 ex VAT
£667.62
(ex VAT per month)

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