2024 (24) BMW 4 Series 420i M Sport 2dr Step Auto
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Vehicle summary
Mileage | 13 miles |
---|---|
Year | 2024 |
Fuel | Petrol |
Gears | Automatic |
Engine | 1998 cc |
WLTP CO2 emissions | 155 g/km* |
Road tax | £600** |
Doors | 2 |
Seats | 4 |
Body type | Convertible |
Colour | Green |
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Featured specification
- Save over £10500 on cost new
- Ex-demonstrator
- 24 Plate for Immediate Delivery
- 19" Alloy Wheels
- Harman/Kardon Speaker System
- Comfort Pack
- Ambient lighting pack - 4 Series
- Electric folding mirrors
- Heated front seats
- Front and rear parking sensors
- BMW Live Cockpit Plus Nav/12.3" instrument display/14.9" display/Intelligent Voice Assist/iDrive touch/access 3rd party app/2USB/4G//bluetooth//Wi-Fi
- DAB tuner
Standard specification
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 Live Cockpit Plus Nav/12.3" instrument display/14.9" display/Intelligent Voice Assist/iDrive touch/access 3rd party app/2USB/4G//bluetooth//Wi-Fi |
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 |
Language version English | 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 |
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 |
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 |
Personal eSim |
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 |
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 |
2 zone automatic air conditioning | 2nd row centre armrest with built-in cupholders |
3 spoke flat bottom M sport leather multifunction steering wheel | 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 |
Packs
Ambient lighting pack - 4 Series | Connected professional package - 4 Series |
M sport exterior styling pack - 4 Series |
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 |
Wheels
Tyre repair kit |
Technical specification
Emissions - ICE
CO | 0.237 | HC | 0.018 |
---|---|---|---|
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 | True |
---|---|---|---|
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
WLTP - FC (l/100km) - Comb | 6.8 | WLTP - FC (l/100km) - Comb - TEH | 7.4 |
---|---|---|---|
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 | 38.2 | 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
Badge Engine CC | 2.0 | Badge Power | 184 |
---|---|---|---|
Coin Description | i | Coin Series | M Sport |
Generation Mark | 2 | Insurance Group 1 - 50 Effective January 07 | 32E |
NCAP Adult Occupant Protection % | 96 | NCAP Child Occupant Protection % | 80 |
NCAP Overall Rating - Effective February 09 | 5 | NCAP Pedestrian Protection % | 93 |
NCAP Safety Assist % | 72 | Service Interval Frequency - Months | 24 |
Service Interval Mileage | 18000 | Standard manufacturers warranty - Mileage | 999999 |
Standard manufacturers warranty - Years | 3 | Vehicle Homologation Class | M1 |
Performance
0 to 62 mph (secs) | 8.2 | Engine Power - BHP | 184 |
---|---|---|---|
Engine Power - KW | 135 | Engine Power - PS | True |
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? | True | 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 | 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 Up) | 385 | Max. Loading Weight | 495 |
Max. Towing Weight - Braked | 1600 | Max. Towing Weight - Unbraked | 750 |
Minimum Kerbweight | 1690 | No. of Seats | 4 |
Turning Circle - Kerb to Kerb | 11.4 |
Independent review
Review courtesy of Car and Driving
BMW 4 Series Convertible
BMW's second generation 4 Series Convertible has more appeal in this improved form. Jonathan Crouch takes a look.
Ten Second Review
The improved version of BMW's second generation 4 Series Convertible now has an even more distinctive look and a sporting dynamic feel. Inside, there's now more media tech and an even plusher cabin. The range has been severely slimmed down in this updated form, but for brand enthusiasts, there's still plenty to like. 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
Echoing the bold style of its 4 Series Coupe showroom stablemate, the improved version of BMW's second generation 4 Series Convertible aims to blend sporting driving pleasure and open-air thrills to continue the 40-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 what's now called the Mercedes CLE Cabriolet - and like those competitors uses a fabric roof. With this smarter revised model, 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. As usual with this model range, there's rear wheel drive and xDrive 4WD for the fastest models. There are no dynamic or engineering changes for this updated model, but BMW has slimmed down the powerplant range considerably, discontinuing diesel power and dropping the previous mid-level 430i petrol variant. That leaves only two mainstream models; the base rear-driven 184hp 420i; and the six cylinder 374hp M440i, which only comes in xDrive 4WD form. That six cylinder engine also features in 530hp form in the flagship M4 Competition variant, also only offered in xDrive guise. As before, there are firm springs and anti-roll bars, plus this Coupe gets a double-jointed spring-strut front suspension and a 5-link rear axle. All the engines link up as standard with eight-speed Steptronic auto transmission, which incorporates Launch Control for Grand Prix-style getaways. As previously, the M440i gets a Sprint function that gives you a steering wheel paddle that when activated, gives you an extra burst of acceleration. Toupees will need to be very firmly tied down. Arguably, less is more here - it's the rear-driven 420i that gets closest to BMW's traditional mid-sized coupe driver's formula. Rivals have long tried to copy this variant's front engine, rear wheel drive BMW layout with its near perfect 50:50 weight distribution - but never quite managed to deliver a package with the same kind of involving finesse. Super-effective traction and stability systems keep those back wheels in check so that if you're not a driving enthusiast, it'll all feel quite normal. But if you are, then the feeling of being propelled up the road by the back wheels as you exit a bend rarely fails to offer up a great feeling of pleasure.
Design and Build
When this MK2 4 Series Convertible first arrived, we were all talking about its 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 meant 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. With the revised version of this MK2 model, BMW wants us to talk about the car's redesigned LED headlights, with their smarter illumiating signature. That once-controversial grille is now surrounded by matte chrome and there are restyled front and rear bumpers too. Customers can add in the 'laser' rear lighting units first seen on the rare M4 CSL, plus there are restyled 19-inch wheel designs. And the top M440i gets black exterior design elements and horizontal bars within the kidney grilles. The CLAR mixed steel-and-alloy platform that underpinned the previous version of this car is retained, but BMW has tried to reduce its weight through greater use of aluminium panels. Inside, the air vents have been redesigned, as has been the steering wheel, which is now flat-bottomed and has standard shift paddles for the auto gearbox. As before, 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, which now runs the brand's latest OS 8.5 software system, which gives you more customisation options. There's also enhanced voice control for the climate functions. 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 and prices start from around £50,000 for the entry-level 420i, which means a big price premium of almost £7,000 over the equivalent Coupe model. Think in terms of around £65,000 if you want the M440i xDrive model. The top M4 Competition Convertible M xDrive model is around £88,000. Equipment levels have been subtly upgraded. Ambvient lighting's now standard and upholstery comes in a new velour the brand calls 'M Performtex'. Optional is Sensatec perforated manmade leather - or real quilted Vernasca leather. Interior trim strips in Aluminium Rhombicle Anthracite are standard, whilst Fineline Light Brown open-pored and Grey Blue Ash open-pored fine-wood trim, and M interior trim carbon fibre are available as options. Customers can also now have the gear selector lever, iDrive Controller and Start/Stop button in a 'CraftedClarity cut-glass finish. A Personal eSIM comes as standard with the car, in addition to its built-in mobile SIM. This enables the vehicle to use the 5G mobile communications standard. The Personal eSIM allows the customer to use the communications and connectivity functions covered by their mobile contract from their car with ease - even in situations where they don't have their smartphone with them. This also includes data streaming via the WiFi hotspot. Wheel sizes vary between 18 and 20-inches and among the options are an M Performance front ornamental grille and M Performance side sill attachments, both in carbon fibre. Interior equipment highlights include the M Performance seat back pans in Alcantara/carbon fibre, the M Performance interior trim strips in carbon fibre and the M Performance door sill trims, also in carbon fibre.
Cost of Ownership
As before, mild hybrid technology is included with both the mainstream engines. 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. The 420i is rated at between 46.3 and 49.6mpg on the combined cycle and 140-131g/km of CO2; for the six cylinder M440i xDrive, it's 38.2-40.9mpg and 169-159g/km. For the M4 Competition xDrive Convertible, it's 27.7mpg and 231g/km. Residual values? Well we expect the depreciation on this facelifted second generation 4 Series Convertible to be pretty similar to that of its direct predecessor, which would mean a very competitive retained worth of about 45% after three years and 60,000 miles. On to the warranty package. BMW's warranty only lasts for three years but it includes an Emergency breakdown service and at least it isn't mileage limited - unlike the comparable package you'd get as standard with a rival Audi. You can of course extent the warranty with either monthly or annual payments. There's a three year paintwork warranty and the usual 12 year anti-corrosion warranty.
Summary
Like many of its owners will be, BMW is quietly satisfied with this 4 Series Convertible, especially in this revised form. 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....
![](https://ssl.caranddriving.com/f6/images/CD169std/new_bmw4seriesconvertible_2023_cd169 (2).jpg)
![](https://ssl.caranddriving.com/f6/images/CD169std/new_bmw4seriesconvertible_2023_cd169 (3).jpg)
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- Performance
- 80%
- Handling
- 70%
- Comfort
- 70%
- Space
- 60%
- Styling
- 70%
- Build
- 80%
- Value
- 50%
- Equipment
- 80%
- Economy
- 70%
- Depreciation
- 80%
- Insurance
- 60%
This vehicle has previously been registered to a business or a vehicle rental company, or been used by a business, so it may have been driven by more than one driver.
This vehicle is fitted with a Particulate Filter. Vehicles with a Particulate Filter driven at low speeds in urban traffic can require periodic trips at higher speeds to clear out the filter.
* Depending on the age of the vehicle, MPG and CO2 may be quoted using either NEDC or WLTP testing standards. Find out more
Figures are provided for comparison purposes. Fuel consumption under real world driving conditions and the CO2 produced will depend upon a number of factors, including any accessories fitted after registration, variations in driving styles, weather conditions and vehicle load.
Choose your finance
These are estimates and could change if you decide to apply for finance. Car finance explained.
Personal contract purchase (PCP)
This is an example, we’ll always discuss your options in detail before you choose.
48 monthly payments of | £659 |
---|---|
Deposit | £3999 |
Total amount payable | £56,344 |
Fixed interest rate | 4.5% |
Representative APR | 8.9% |
Cash price | £44,898 |
Credit amount | £40,899 |
Contract mileage | 32,000 |
Excess mileage charge | 8.0p per mile |
Optional final payment | £20,054 |
Term (months) | 49 |
Next steps
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- BMW 4 SERIES - 420i M Sport 2dr Step Auto
- SF24YLH
- GBP
- 44898
- 13 miles, Kirkcaldy BMW