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  • Auto start-stop
  • BMW emergency call
  • BMW Online services
  • BMW remote services
  • BMW Teleservices
  • Boot lid lock with soft close function
  • Brake pad wear indicator in front and rear
  • Check Control warning system for monitoring of lights and door/luggage compartment open warning
  • Control display - 6.5" colour display screen
  • Front/rear park distance control (PDC)
  • iDrive Controller with 8 favourite buttons
  • Instrument cluster with speedometer with mph readout, tachometer, fuel gauge and oil temperature gauge
  • Lights on warning by audio warning signal when ignition is switched off
  • 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
  • Personal Profile - automatic lock when driving away selectable
  • Run flat indicator
  • Auto dimming rear view mirror
  • Body colour door handles
  • Body colour front bumper
  • Body colour mirror caps
  • Body colour rear bumper
  • Body colour roof mouldings
  • Chrome kidney grille with extra wide black, high gloss black vertical slats
  • Direction indicator, side repeaters, integrated in exterior mirrors
  • Dual, round and left exhaust tailpipes with dark chrome finisher
  • Dynamic brake lights
  • Electric front windows with fingertip open/close + anti-trap facility
  • Follow me home headlights
  • Front air inlet with high gloss black finish
  • Front and rear bumper system
  • Green tinted heat protection glazing
  • Heated windscreen washer jets
  • Heated, electrically adjustable exterior mirror aspheric on driver side, convex on passenger side
  • High gloss black rear bumper insert
  • High level third brake light
  • LED daytime running lights
  • LED direction indicator lenses
  • LED eyebrow light
  • LED front fog lights
  • LED tail lights with 3D L-shaped LED light design
  • Matt aluminium air breather
  • Metal front door sill finishers with neutral BMW designation
  • Model designation
  • Rain sensor including auto headlights activation
  • Retractable hard top
  • Shark fin antenna
  • Trim designation deletion on front side panels of sport trim badge
  • Two speed adjustable intervals windscreen wipers
  • Visible VIN plate
  • Windscreen with grey shadeband
  • 12V sockets in front centre console and passenger footwell
  • 2 Rear seat headrests
  • Air conditioning and radio control panel in high gloss black
  • Ambient lighting - switchable BMW classic orange/ cold white LED
  • Automatic air conditioning with two zone control
  • Bottle holders integrated into front door trim storage compartments
  • Chrome centre console panel highlight
  • Dakota leather upholstery
  • Driver and front passenger seat heating
  • Electric front seat adjustment with driver memory
  • Front and rear side armrests integrated into door trim
  • Front folding sliding armrest with storage compartment
  • Front head restraints
  • Front sports seats
  • Glove compartment
  • Interior lighting, front centre over interior mirror and rear centre automatic interior light activation when door is opened
  • Load lashing eyes in luggage compartment
  • Loading aid luggage compartment when hard top is retracted
  • Reach + rake manual adjustable steering column
  • Rear centre armrest
  • Rear child seat isofix attachment with passenger airbag deactivation
  • Rear coded belt buckles
  • Storage compartment behind rear seat backrest
  • Storage compartment in centre rear seat base
  • Sunvisors with vanity mirrors and ticket pocket
  • Toolkit located in luggage compartment
  • Two front cup holders with a sliding lid
  • Velour floor mats
  • Welcome lighting
  • Extended lighting package - 4 Series
  • Non Smokers pack
  • Technology package - 4 Series Sport
  • 3 point seatbelts on all seats
  • Airbag - Front driver and passenger, front and rear head, front side, curtain head protection, manual deactivation of front passenger airbag possible
  • Anti lock braking system (ABS) with brake assist
  • Automatic Stability Control (ASC)
  • Battery safety cut-off
  • Brake drying
  • Brake energy regeneration
  • Brake pretensioning
  • CBC - (Cornering brake control)
  • Crash sensor activating central locking release, hazard warning lights
  • Dynamic brake control
  • Dynamic stability control + (DSC+)
  • Dynamic Traction Control - DTC
  • Front and rear ventilated brake disc
  • Front seatbelt force limiters
  • Hill start assistant
  • Pyrotechnically pre-tensioned front seatbelts
  • Roll over protection
  • Seat belt security check for driver
  • Side impact protection
  • Twin horns
  • Tyre pressure monitoring with three level warning strategy
  • Variable torque distribution
  • Warning triangle and first aid kit
  • Alarm system (Thatcham 1) with electronic engine immobiliser
  • Central locking switch for all doors, fuel filler cap and luggage compartment
  • Remote control integrated key with red inset
  • Start/stop button with Comfort Go keyless engine start and auto Start/stop deactivation button
  • 6 speed manual transmission
  • Aluminium front suspension
  • Diesel particulate filter
  • Drive performance control with ECO PRO comfort + sport mode
  • Electronic differential lock
  • Five link rear suspension
  • Lightweight engineering
  • Sport instrument cluster with red highlight and chrono scale
  • Reduced rolling resistance tyres
  • Run flat tyres
ManufacturerBMW
Range4 SERIES
Model4 SERIES DIESEL CONVERTIBLE
Derivative420d [190] Sport 2dr [Professional Media]
Body StyleSports
Fuel TypeDiesel
TransmissionManual
Doors2
MPG56.5 MPG
BHP190 BHP
Luggage Capacity (Seats Down)370 KG
Seats4
EmissionsEURO 6
Top Speed146 MPH

bmw 4 series
420d [190] Sport 2dr [Professional Media]

Fuel Type
Fuel Type
Diesel
Transmission
Transmission
Manual
0 - 62
0 - 62
8.2 Sec
Top Speed
Top Speed
146MPH
Efficiency
Efficiency
56.5MPG
Emissions
Emissions
142g/km
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  • Auto start-stop
  • BMW emergency call
  • BMW Online services
  • BMW remote services
  • BMW Teleservices
  • Boot lid lock with soft close function
  • Brake pad wear indicator in front and rear
  • Check Control warning system for monitoring of lights and door/luggage compartment open warning
  • Control display - 6.5" colour display screen
  • Front/rear park distance control (PDC)
  • iDrive Controller with 8 favourite buttons
  • Instrument cluster with speedometer with mph readout, tachometer, fuel gauge and oil temperature gauge
  • Lights on warning by audio warning signal when ignition is switched off
  • 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
  • Personal Profile - automatic lock when driving away selectable
  • Run flat indicator
  • Auto dimming rear view mirror
  • Body colour door handles
  • Body colour front bumper
  • Body colour mirror caps
  • Body colour rear bumper
  • Body colour roof mouldings
  • Chrome kidney grille with extra wide black, high gloss black vertical slats
  • Direction indicator, side repeaters, integrated in exterior mirrors
  • Dual, round and left exhaust tailpipes with dark chrome finisher
  • Dynamic brake lights
  • Electric front windows with fingertip open/close + anti-trap facility
  • Follow me home headlights
  • Front air inlet with high gloss black finish
  • Front and rear bumper system
  • Green tinted heat protection glazing
  • Heated windscreen washer jets
  • Heated, electrically adjustable exterior mirror aspheric on driver side, convex on passenger side
  • High gloss black rear bumper insert
  • High level third brake light
  • LED daytime running lights
  • LED direction indicator lenses
  • LED eyebrow light
  • LED front fog lights
  • LED tail lights with 3D L-shaped LED light design
  • Matt aluminium air breather
  • Metal front door sill finishers with neutral BMW designation
  • Model designation
  • Rain sensor including auto headlights activation
  • Retractable hard top
  • Shark fin antenna
  • Trim designation deletion on front side panels of sport trim badge
  • Two speed adjustable intervals windscreen wipers
  • Visible VIN plate
  • Windscreen with grey shadeband
  • 12V sockets in front centre console and passenger footwell
  • 2 Rear seat headrests
  • Air conditioning and radio control panel in high gloss black
  • Ambient lighting - switchable BMW classic orange/ cold white LED
  • Automatic air conditioning with two zone control
  • Bottle holders integrated into front door trim storage compartments
  • Chrome centre console panel highlight
  • Dakota leather upholstery
  • Driver and front passenger seat heating
  • Electric front seat adjustment with driver memory
  • Front and rear side armrests integrated into door trim
  • Front folding sliding armrest with storage compartment
  • Front head restraints
  • Front sports seats
  • Glove compartment
  • Interior lighting, front centre over interior mirror and rear centre automatic interior light activation when door is opened
  • Load lashing eyes in luggage compartment
  • Loading aid luggage compartment when hard top is retracted
  • Reach + rake manual adjustable steering column
  • Rear centre armrest
  • Rear child seat isofix attachment with passenger airbag deactivation
  • Rear coded belt buckles
  • Storage compartment behind rear seat backrest
  • Storage compartment in centre rear seat base
  • Sunvisors with vanity mirrors and ticket pocket
  • Toolkit located in luggage compartment
  • Two front cup holders with a sliding lid
  • Velour floor mats
  • Welcome lighting
  • Extended lighting package - 4 Series
  • Non Smokers pack
  • Technology package - 4 Series Sport
  • 3 point seatbelts on all seats
  • Airbag - Front driver and passenger, front and rear head, front side, curtain head protection, manual deactivation of front passenger airbag possible
  • Anti lock braking system (ABS) with brake assist
  • Automatic Stability Control (ASC)
  • Battery safety cut-off
  • Brake drying
  • Brake energy regeneration
  • Brake pretensioning
  • CBC - (Cornering brake control)
  • Crash sensor activating central locking release, hazard warning lights
  • Dynamic brake control
  • Dynamic stability control + (DSC+)
  • Dynamic Traction Control - DTC
  • Front and rear ventilated brake disc
  • Front seatbelt force limiters
  • Hill start assistant
  • Pyrotechnically pre-tensioned front seatbelts
  • Roll over protection
  • Seat belt security check for driver
  • Side impact protection
  • Twin horns
  • Tyre pressure monitoring with three level warning strategy
  • Variable torque distribution
  • Warning triangle and first aid kit
  • Alarm system (Thatcham 1) with electronic engine immobiliser
  • Central locking switch for all doors, fuel filler cap and luggage compartment
  • Remote control integrated key with red inset
  • Start/stop button with Comfort Go keyless engine start and auto Start/stop deactivation button
  • 6 speed manual transmission
  • Aluminium front suspension
  • Diesel particulate filter
  • Drive performance control with ECO PRO comfort + sport mode
  • Electronic differential lock
  • Five link rear suspension
  • Lightweight engineering
  • Sport instrument cluster with red highlight and chrono scale
  • Reduced rolling resistance tyres
  • Run flat tyres
Technical Specification
Manufacturerbmw
Range4 series
Model4 series diesel convertible
Derivative420d [190] Sport 2dr [Professional Media]
Body StyleSports
Fuel TypeDiesel
TransmissionManual
Doors2
MPG56.5 MPG
BHP190 BHP
Luggage Capacity (Seats Down)370 KG
Seats4
EmissionsEURO 6
Top Speed146 MPH

Vehicle Review

The BMW 4 Series Convertible offers an efficiently desirable package in 420d guise. Jonathan Crouch reports.

The best-selling 4 BMW 4 Series Convertible model will be a diesel: this one in fact - the 420d. The engine under the bonnet may only have four cylinders but it develops a healthy 190bhp - and much more pulling power than the equivalent petrol version. It's even refined enough for owners to properly enjoy the roof-down vibes.

If you want a BMW 4 Series Convertible, it's likely to be because you like the idea of the kind of metal folding roof that rivals in this segment can't offer. This car has a smarter look in this improved form and most buyers like the 420d diesel version. Let's find out why.

The chassis of the 4 Series Convertible is based on that of the coupe but the springs, damping and axle characteristics have all been tailored for the open car. By modifying and fine-tuning variables such as the camber angle, the track and the roll centre, BMW has optimised agility and steering accuracy. Dynamic changes made to this improved model mean stiffer suspension and an upgraded steering set-up. These measures have resulted in a tangible improvement in both lateral and longitudinal handling properties, regardless of the load on board. The upshot is reduced roll, more neutral responses when driving at the limit, even greater straight-line stability and the wonderfully precise steering for which BMW is renowned. This applies to the standard suspension, as well as the M Sport suspension and Adaptive suspension. As before, Servotronic power steering is standard, with Variable Sports Steering offered as an option. A six-speed manual gearbox is fitted as standard with an eight-speed automatic available if you pay a little extra. With over 60% of buyers likely to favour a black pump BMW, we chose the 420d variant to try, a car with nearly the same output (190bhp) as its petrol-fuelled 420i counterpart but offering nearly 30% more torque, 380Nm making itself keenly felt from low revs. The most obvious stats don't immediately bear this out - both cars make 62mph from rest in just over 8s (only fractionally slower than their Coupe counterparts) on the way to a top speed of just under 150mph - but you really feel the diesel's extra torque out on the road.

BMW alone persists with the metal-folding roof concept in this segment, so if you prefer this 4 Series Convertible to either of its two direct rivals, Cabriolet versions of the Audi A5 and Mercedes C-Class, that's likely to be the major reason why. The changes made to this revised model are really quite subtle. If you know the car well, you'll spot the new twin LED headlights that now come as standard. Another frontal change is found in the central air intake which has an aperture that increases in size towards the outer edges, adding a more imposing presence and greater sense of width to the entire nose section. Otherwise, the recipe is as it was before. Having to create a pretty shape that effortlessly swallowed all the roof-work's sliding metal panels must be quite a design challenge but here, that's been expertly carried off, helped by the fact that like all the most modern folding hardtops, the BMW system - which takes 20 seconds to operate and can function at speeds of up to 8mph - uses three rather than two-pieces. The advantage of this is that you don't need a distended rear end on the car to accommodate the larger sections of a two-piece roof. The downside of stacking three rather than two pieces on top of each other in the boot is that when they're all folded and sandwiched together here, there's not a great deal of luggage space left. With the roof up, you'll get 370-litres of cargo capacity. But fold it down and that figure falls to just 220-litres. And the rear seats? Well, getting to them isn't the easiest task in the world and once you're seated, there's just about enough room for two adults on shorter trips. At the wheel, there's a low-set driving position and a grippy three-spoke sports steering wheel. Optional on this car is the Air Collar, a concept first pioneered by Mercedes, with vents below the head restraints that can massage your neck with comforting warm air on cold mornings. Otherwise, everything is as it would be in a 4 Series Coupe.

You'll need a budget of around £40,000 for the 420d diesel, so you'll need to allow for a premium of around £2,500 over the equivalent 420i petrol version - with a further £1,500 needed if you want the 8-speed automatic paddleshift gearbox rather than the standard 6-speed manual. Equipment runs to leather heated seats, xenon headlamps, LED rear lights, a parking radar, as well as climate control. Satellite navigation is standard on most versions, but the adaptive dampers are a box you might want to tick on the options list as well as the sport steering. And options? Well, we could take or leave the sports seats, but the stereo upgrade is worth giving a listening to. BMW will also tempt you with a range of connected services, a head-up display, and some neat driver aids but you'll need to keep an eye on the asking price. Buyers also get the option of a wider wind deflector, while there's also the three-temperature Air Collar, which is a blatant crib of Mercedes' Air Scarf system but a welcome addition nevertheless. The optional wind deflector is now smaller, lighter, more effective and easier to use. When it is not needed, it can be stored behind the rear seats to save space.

Can this really be seen as an efficient car? After all, it carries around a very inefficiently heavy roof mechanism. A BMW 320d saloon weighs 1,495kg: this 420d Convertible weighs 1,755kgs. Those are the facts - and they go much of the way towards explaining why metal folding roofs have fallen from favour the in current, efficiency-obsessed automotive design. Having said all of that, the Munich maker is keen to point out just how much effort has gone into minimising the downsides of this approach with this car. A whole range of weight-saving measures, including use of aluminium in areas like the suspension, has meant that most 4 Series Convertible variants are up to 20kgs lighter than their predecessors. All of which explains why this 4 Series manages to be so class-competitive when it comes to WLTP running costs. The manual gearbox 420d Convertible we tried manages 46.3mpg on the combined cycle and 160g/km of CO2 in manual form, improving to 47.1mpg and 156g/km if you go for the automatic version.

The BMW 4 Series seems to be a carefully managed piece of product development, especially in 420d guise. You have to like the idea of a metal folding roof in order to want one but if you do, you'll find plenty to like here. Make no mistake, this is no half measure design. BMW can congratulate themselves on a job well done.

All vehicle images, descriptions and data on this site are provided by a 3rd party and are for illustration and reference purposes only and are not necessarily an accurate representation of the vehicle on offer, therefore we encourage you to check all equipment on configurator of manufacturer's website prior to order.

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All offers are subject to change at any time, you must be 18 or over and finance is subject to status, vehicle availability and terms and conditions apply. We can introduce you to a limited number of finance companies, a commission may be received. Failure to maintain payments may result in termination of your agreement and the vehicle being returned, this could affect your credit rating and make it more difficult to obtain credit in the future. All prices correct at time of publication.

We purchase a wide variety of vehicles from all over the country to ensure the best quality and value for our customers, all of our cars go through a thorough inspection process and if they do not meet our standards we do not sell them. We endeavour to inform our customers (where possible) the provenance of the vehicle they are buying and as such we will always inform you if the vehicle has previously been either an ex fleet or hire car. Should your vehicle be an ex hire/fleet car please do not be concerned as we would never value this vehicle differently when you come to part exchange it and there is no difference to the CAP valuation either.

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