01-07-2016:
Complaint of noisy roof on BMW 4 Series Convertible: Intermittent noise from rear. Seal where roof meets the body was cleaned and noise ceased. But during long driving trips, every time the car got wet the noise returned. Stopping and cleaning the roof and body stopped the noise. Dealership replaced seal under the rear window and stripped the bodywork of all LifeShine paint protection, then replaced the LifeShine and polished it with BMW product. The car was washed with BMW product and polished twice in 15 months with Auto Glym. Theory was rain washed wax residue into the seal. During recent rain the noise has returned.
21-06-2018:
Report of side windows of 2016 BMW 420i Convertible dropping intermittently while the top is up. BMW dealers have been unable to fix the problem.
02-02-2019:
Report of steering problem with BMW 440i convertible since used purchase in July 2018: "There has been an ongoing issue with the steering and what I think is a loud rumbling noise from the front nearside of the car. The steering is vague and the noise is much worse on turning to the right. Driving on the motorway is really odd, the car tends to wander. BMW Stratstone have had 2 goes to fix this, in July then in November (a loose steering joint was identified). The roof also rattles really loudly." (The car might have been crash damaged or run off the road before purchase.)
October 2013
BMW unveils 4 Series Convertible
The BMW 4 Series Convertible has a folding metal roof which can be raised or lowered in just 20 seconds and at speeds of up to 8mph. The optional wind deflector can now be stored behind the seats when not in use, and a new Air Collar system blows warm air around the necks of front seat occupants for open-air driving on cooler days.
At launch the 4 Series Convertible range consisted of two petrol engines and one diesel engine choice, available across five different trim levels. The range is characterised by a marked increase in the standard equipment level offered, despite the minimal increase in price.
The BMW 4 Series Convertible went on sale 8 March 2014, starting at £36,675 OTR for a 420d SE Convertible.
Model |
Power
hp
|
Torque
Nm
|
0 – 62mph Seconds |
Top Speed mph |
Combined mpg |
CO 2 Emissions g/km |
Price OTR |
BMW 435i Luxury Convertible |
306 |
400 |
5.6 (5.5) |
155* |
34.9 (37.7) |
190 (176) |
£44,970 |
BMW 428i SE Convertible |
245 |
350 |
6.4 (6.4) |
155* |
41.5 (42.8) |
159 (154) |
£39,515 |
BMW 420d SE Convertible |
184 |
380 |
8.2 (8.2) |
146 |
55.4 (58.9) |
133 (127) |
£36,675 |
The three-piece metal roof of the new BMW 4 Series Convertible means that occupants can enjoy a warm, quiet, snug cockpit whatever the weather outside. A simple push of a button transforms the dynamic coupé into an elegant convertible in just 20 seconds and can now be lowered when the vehicle is travelling at speeds of up 8mph.
The hard-top of the BMW 4 Series Convertible features a number of design improvements to reduce noise levels for a much quieter interior ambience. In addition, the sound-absorbing headliner also reduces wind noise by up to 2dB.
The redesigned optional wind deflector is now wider at the sides, and the optional three-temperature Air Collar allows for comfortable open-air driving at low temperatures. The 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.
The BMW 4 Series Convertible also has plenty of space in the boot, even when the retractable hard-top is lowered. The new Convertible offers wider access to the luggage compartment, and an electro-hydraulic loading assistance system pivots and positions the folded hard top to ensure maximum utilisation of the 220litres of storage space. When the top is up the luggage compartment has a volume of 370 litres, 20 litres more than in the BMW 3 Series Convertible. Moreover, with the optional Through-loading system a flat and level storage area can be utilised when the backrest of the rear bench seat is folded down.
The new BMW 4 Series Convertible will offer a significantly higher standard specification that the model it replaces. As standard the 4 Series is fitted with front and rear parking sensors, heated electric front seats, Servotronic steering, a Sport-multi-function leather steering wheel and Xenon headlights. DAB radio, Dakota leather upholstery with SunReflective technology, Two-zone air conditioning, Cruise control, Bluetooth, USB, Comfort Go, Drive Performance Control, iDrive Controller and 6.5-inch colour screen complete the standard specification of all models across the range.
The new BMW 435i Convertible can sprint from zero to 62mph in just 5.6 seconds, on the way to an electronically limited top speed of 155mph. Even so, the average fuel consumption is from 34.9mpg and CO2emissions from 190g/km. The car is even more economical when fitted with the optional eight-speed Sport automatic gearbox, achieving a combined fuel consumption of just 37.7mpg, whileemissions are down to 176g/km.
The new BMW 428i Convertible is defined by the spirited power delivery, impressive torque, high maximum revs and low weight of its 2.0-litre four-cylinder turbocharged engine. As much as 245PS is produced from 5,000–6,500rpm, and peak torque of 350Nm is available between 1,250-4,800rpm. This equates to a zero to 62mph dash in 6.4 seconds and an electronically limited top speed of 155mph, while the average fuel consumption stands at just 41.5mpg, and CO2 emissions are only 159g/km.
The diesel engine choice at launch is the new BMW 420d Convertible With a maximum output of 184PS at 4,000rpm and peak torque reaching 380Nm between 1,750-2,750rpm, it’s no surprise the car can sprint from zero to 62mph in just 8.2 seconds and accelerate up to 146mph if required. Average fuel consumption stands at 55.4mpg and CO2 emissions of 133g/km. With the optional eight-speed Sport automatic gearbox combined fuel comsumption falls to 58.9mpg and CO2 emissions to 127g/km.
A six-speed manual gearbox is standard in the new BMW 4 Series Convertible. Alternatively, customers can specify an eight-speed automatic gearbox that adjusts to a wide range of driving styles and offers manual gear changes via paddles on the steering wheel.
May 2014
New engines launched in 4 Series Convertible
The new BMW 420i Convertible is the entry-level model, with a 2.0-litre petrol engine featuring BMW TwinPower Turbo technology that produces 184PS and a peak torque of 270Nm. This provides acceleration from zero to 62mph in an admirable 8.2 seconds, with an average fuel consumption of 42.8mpg and CO2 emissions of 154g/km. It costs from £34,210 OTR.
Three additional diesel engines with BMW TwinPower Turbo technology are available. The BMW 425d Convertible's 2.0-litre four-cylinder engine features multi-stage turbocharging and common-rail direct injection, a technology that helps achieve a maximum output of 218hp and a maximum torque of 450Nm. This mix of sporting character and efficiency is borne out by zero to 62mph in 7.3 seconds and an average fuel consumption of 54.3mpg and CO2 emissions of 138g/km.
From the summer of 2014, the 425d is joined by two new straight six-cylinder diesel engines featuring BMW TwinPower Turbo technology. The BMW 430d Convertible features a turbocharger with variable turbine geometry and common-rail direct injection with solenoid valve injectors. A maximum output of 258PS and a maximum torque of 560Nm mean the car, which is equipped as standard with an eight-speed Sport automatic transmission, accelerates from a standstill to 62mph in just 5.9 seconds. The average fuel consumption is 53.3mpg with CO2 emissions rated at 139g/km.
At the pinnacle of the 4 Series Convertible range, the new BMW 435d xDrive Convertible provides even higher performance and is only available with four-wheel-drive. Multi-stage turbocharging and common-rail direct injection with piezo injectors give it a maximum output of 313PS and a peak torque output of 630Nm. The eight-speed Sport automatic transmission is also a standard feature on the BMW 435d xDrive Convertible, which takes a mere 5.2 seconds to accelerate from zero to 62mph. Average fuel consumption is 49.6mpg with CO2 emissions of 151g/km.
The new BMW 4 Series Convertible diesel models cost from £38,540 OTR for the 425d SE Convertible, £44,485 OTR for the 430d Luxury Convertible and from £48,400 for the 435d xDrive Luxury Convertible.
From the summer of 2014, the new eight-speed automatic transmission featuring Proactive Drive is available for models in the BMW 1 Series, 2 Series, 3 Series, 4 Series and 5 Series ranges. On vehicles equipped with satellite navigation, the Proactive Drive system ensures that the moment to shift gears is precisely adapted to the current driving situation. The system works even if the navigation system is not active at that given moment.
May 2016
New engine range for BMW 4 Series
The BMW 440i Convertible gets from 0 to 62 mph in 5.4 seconds.
Fuel economy 38.2 mpg (automatic: 42.8 mpg) and 159 – 154 g/km for the BMW 440i Coupe; 7.2 – 6.8 41.5 mpg and 167 –159 g/km for the BMW 440i Convertible and 42.8 mpg and 159 – 154 g/km for the BMW 440i Gran Coupe all with standard wheels and tyres.
The new four-cylinder petrol engines offer 252hp and 350 Nm; 0 to 100 km/h (62 mph) in 5.9 seconds (auto: 5.8 seconds) for the BMW 430i Coupe; 6.4 seconds (auto 6.3 seconds) for the new BMW 430i Convertible and 5.9 seconds (auto 5.9 seconds) for the BMW 430i Gran Coupe. The BMW 430i Coupe and BMW 430i Gran Coupe NEDC combined is 46.3 mpg (automatic: 51.4 mpg imp) and 136 – 129 g/km CO2. The BMW 430i Convertible does 42.8 mpg (auto 47.9 mpg imp) and 146 – 138 g/km.
The BMW 420i Coupe, BMW 420i Convertible and BMW 420i Gran Coupe also get 2.0 litre versions of the new modular engine. This gives 184hp. All get a six-speed manual gearbox as standard with 8 speed Steptronic option. The BMW 420i Coupe gets to 62 in 7.3 seconds (auto: 7.5 seconds), while the BMW 420i Convertible does it in 8.2 and 8.4 and the BMW 420i Gran Coupe in 7.5 and 7.7. Combined fuel consumption and CO2 emissions are 48.7 mpg (automatic: 51.4 mpg imp) and 134 – 127 g/km for both the BMW 420i Coupe and the BMW 420i Gran Coupe, while the BMW 420i Convertible does 45.6 mpg as a manual or 48.7 mpg as an auto (144 – 136 g/km).
The BMW 425d Coupe, BMW 425d Convertible and BMW 425d Gran Coupe with BMW TwinPower Turbo technology fdevelop 165 kW/224 hp and peak torque of 450 Nm. 0-62 for the coupe is 6.5 (auto 6.1); convertible 7.1 (auto 6.7); Gran Coupe 6.7 (auto 6.3). The BMW 425d Coupe and Gran Coupe do 61.4 mpg (auto 64.2 mpg) and 124 – 116 g/km; the BMW 425d Convertible does 55.4 mpg (auto 58.9) and 135 – 127 g/km CO2; the BMW 425d Gran Coupe does 60.1 mpg (auto 61.4 mpg) and 127 – 120 g/km.
January 2017
BMW 4 Series refreshed for 2017
Distinguished by larger air intake and LED headlights and rear lights. Unbroken central air intake with an aperture that increases in size towards the outer edges. On the Sport version, the air intake is almost entirely bordered by an eye-catching, high-gloss black bar.
The BMW 4 Series is now equipped with new twin LED headlights as standard. The headlights are composed of flat-bottomed headlight tubes encircled by DRL rings, along with a dynamic cropped look, produced by the characteristic ‘eyebrow’ design. LED front fog lamps also form part of the standard specification.
Inside the 2017 BMW 4 Series range an array of upgraded details include the surrounds for the air vents and the control panels in the doors now including electroplated inserts, while the switch for the hardtop roof in the BMW 4 Series Convertible and the integral belt guides for its front seats also have an electroplated finish.
Options include Night Blue Dakota, Cognac Dakota and Ivory White Dakota leather with coordinated contrast stitching and piping. Further choices for the interior trim, meanwhile, include Aluminium Carbon with Pearl Chrome highlight and Black High-Gloss with Pearl Chrome highlight.
The BMW 4 Series Coupe models now start with the Sport model, with the M Sport model available for all engines or as standard with the 430i, 430d/430d xDrive, 435d xDrive and 440i.
A wider choice of 18 and 19-inch light-alloy wheels exclusive to the new 4 Series is also now available. Snapper Rocks Blue, a new shade of turquoise and Sunset Orange are new paint options.
The 2017 BMW 4 Series Coupe now comes with stiffer suspension, featuring more advanced damping technology and an upgraded steering set-up. These 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 precise steering. This applies to the standard suspension, as well as the M Sport suspension and Adaptive suspension.
Model
|
Power (PS)
|
Torque (Nm)
|
0 – 62mph (Seconds)
|
Combined (mpg)
|
CO2 (g/km)
|
OTR prices
|
420i
Coupé
Convertible
Gran Coupé
|
184
184
184
|
290 (270)
290 (270)
290 (270)
|
7.3 (7.5)
8.2 (8.4)
7.5 (7.7)
|
46.3 (48.7)
42.8 (45.6)
46.3 (48.7)
|
141 (134)
153 (144)
141 (134)
|
£32,525
£37,315
£32,525
|
430i
Coupé
Convertible
Gran Coupé
|
252
252
252
|
350
350
350
|
5.9 (5.8)
6.4 (6.3)
5.9
|
43.5 (48.7)
40.4 (44.8)
43.5 (47.8)
|
151 (136)
162 (146)
151 (136)
|
£37,275
£41,475
£37,275
|
440i
Coupé
Convertible
Gran Coupé
|
326
326
(326)
|
450
450
(450)
|
5.2 (5.0)
(5.4)
(5.1)
|
36.7 (41.5)
(39.2)
(41.5)
|
179 (159)
(167)
(159)
|
£42,985
£48,435
£44,505
|
420d
Coupé
Convertible
Gran Coupé
|
190
190
190
|
400
400
400
|
7.3 (7.1)
8.1 (8.0)
7.5 (7.3)
|
62.8 (65.7)
55.4 (60.1)
67.3 (70.6)
|
119 (114)
134 (124)
111 (106)
|
£34,895
£39,780
£33,395
|
430d
Coupé
Convertible
Gran Coupé
|
(258)
(258)
(258)
|
(560)
(560)
(560)
|
(5.5)
(5.9)
(5.6)
|
(55.4)
(51.4)
(53.3)
|
(134)
(144)
(139)
|
£41,695
£46,450
£41,695
|
435d xDrive
Coupé
Convertible
Gran Coupé
|
(313)
(313)
(313)
|
(630)
(630)
(630)
|
(4.7)
(5.2)
(4.8)
|
(50.4)
(47.9)
(49.6)
|
(147)
(155)
(150)
|
£46,495
£50,355
£46,495
|
All new BMW 4 Series models are available with three petrol engines offering the following power ratings: the 420i with 184hp, the 430i with 252hp and the top-of-the-range 440i with 326hp. Combined fuel consumption is 35.8-51.4mpg, while CO2 emissions range from 127g/km to 185g/km.
There is also a choice of three diesel engines: the 420d with 190hp, 430d with 258hp and 435d xDrive with 313hp. Combined fuel consumption ranges from 47.9-70.6mpg with CO2 emissions of 106-155g/km.
Depending on the model, the BMW 4 Series Coupé, BMW 4 Series Convertible and BMW 4 Series Gran Coupé can be specified with either a six-speed manual gearbox or eight-speed Steptronic transmission, which is already fitted as standard on the BMW 430d/BMW 430d xDrive, BMW 435d xDrive, BMW 440i Convertible and BMW 440i Gran Coupé.
July 2018
Eight-speed automatic added to more models
The BMW 420i Convertible and 430i Convertible get the Steptronic as standard fit.