BMW 1 Series  

Overview  
Manufacturer  BMW 
Production  2004 – 2011 (E87)^{[1]} 2007–2012 (E81) 2007 – August 2013 (E82) 2007 – June 2013 (E88) 
Assembly  Leipzig, Germany Regensburg, Germany 
Designer  Christopher Chapman (E87: 2001)^{[2]} 
Body and chassis  
Body style  2door coupe (E82) 2door convertible (E88) 3door hatchback (E81) 5door hatchback (E87) 
Layout  FR layout 
Dimensions  
Wheelbase  2,660 mm (104.7 in) 
Chronology  
Predecessor  BMW Compact 
Successor  F20, F21 F22 and F23 
The firstgeneration BMW 1 Series is a compact executive car produced by the German automaker BMW since 2004, when it replaced the BMW 3 Series Compact as the smallest and least expensive vehicle in the BMW range. The 3door and 5door hatchbacks were replaced by the F20 and F21 models in 2012, while the E82 coupé and E88 convertible variants were replaced by the 2 Series F22 and F23 in 2013.
Available in 3door hatchback (model code E81), 5door hatchback (E87), coupe (E82) and 2door convertible (E88) body styles, the 1 Series features a rearwheel drive chassis, 50:50^{[3]} weight balance, longitudinallymounted engine and aluminum multilink suspension as well as a range of petrol and diesel engines. The 1 Series accounted for nearly onefifth of the total BMW sales in 2008.^{[4]}
The 1 Series was developed alongside the E90 3 Series.^{[5]} Design work was done by Christopher Chapman in 2001, which was frozen for series production at the end of 2001. The 2002 CS1 Concept previewed the 1Series design elements at the 2002 Geneva Motor Show.^{[6]}
The 1 Series was launched globally in Autumn 2004 and shares many structural, chassis, powertrain, hardware and electronic elements with the larger E90 3Series. The model was started to provide a lower point of entry into the BMW range as the 3 Series moved gradually upmarket. Initially launched as a fivedoor hatchback, a threedoor version was also launched in July 2007.
The 1 Series Coupé (E82) was unveiled in Internationale AutomobilAusstellung (IAA) 2007, which went on sale on 24 November 2007.
The 1 Series coupe (E82) and convertible (E88) went on sale in the United States and Canada for the 2008 model year^{[7]} as the 128i and the 135i in June 2007. Other countries received the 120i and 125i in both platforms. The convertible, unlike the 3 Series convertible, uses a softtop instead of a folding hardtop.
The North American introduction of the coupe and cabriolet was during the second quarter of 2008, which was credited for helping BMW overtake Lexus as the top luxury brand.^{[8]}^{[9]}
The firstgeneration 1 series shares over 60% of components with the E90 3Series.,^{[10]} including front and rear suspension.

In 2007 the 1 Series lineup expanded considerably with the introduction of a threedoor hatchback, coupe and convertible body styles. There was also a midgenerational refresh as engines were upgraded and more fuel efficient, along with new bumpers and other exterior and interior updates.^{[11]}
In 2011, the coupé and cabriolet bodies gained a facelift. Exterior changes to the model were minor headlight and taillight revisions, new front/rear bumpers and minor revisions to the interior. The only new engine was the N55 which replaced the N54 twinturbo, with power and torque output remaining the same. Even though many engines are same, the facelifted 1 Series fuel consumption is slightly higher in some models such as the 123d, and slightly lower in some models such as the 120i.^{[12]}
The 1 Series Coupé was marketed in the US as a successor to the BMW 2002, a twodoor from the 1970s known for its light weight and relative high performance at the time and its long bonnet, slim cabin and short rear.^{[13]}^{[14]}
In the 1series hatchback commercial, Kermit the Frog was shown driving a BMW 1 Series around in a desert making figure eights, showcasing the car's agility.^{[15]}
Jeremy Clarkson and other journalists raised aesthetic complaints about the 1series, adding at the end of his review for the Sunday Times 'The 1series is crap.'^{[16]}
Critical response has changed in recent years with the introduction of the Coupé, and convertible model  which have been described as 'returning BMW to its roots', and the 135i has been described as the successor of the original E30 M3 of the 1990. Clarkson himself awarded the 2008 model five stars, and had the following to say: 'The 135 coupé is the best car BMW makes.'^{[17]}
The BMW 118d (not sold in North America) won the 'World Green Car Award' in 2008 as a performanceoriented car with CO_{2} emissions and fuel consumption comparable to Toyota Prius.^{[18]}
In 2006, a BMW 120d modified with a BMW customer racing kit^{[19]} entered by "Schubert Motors" placed 5th at the Nurburgring 24 Hours in a field of 220 cars, including the more powerful Porsche 911 GT3, BMW M3 and Lamborghini Gallardo.
Fourcylinder petrol, available in 3door hatchback and 5door hatchback body styles. In early 2006 the 5speed manual transmission was phased out in favor of the 6speed gearbox available across the rest of the range.
Fourcylinder diesel, available in 3door hatchback and 5door hatchback body styles.
Fourcylinder petrol, available in 3door hatchback, 5door hatchback and convertible body styles. In early 2006 the 5speed manual transmission was phased out in favor of the 6speed gearbox available across the rest of the range.
Fourcylinder diesel, available in 3door hatchback, 5door hatchback, coupe and convertible body styles.
Fourcylinder petrol, available in 3door hatchback, 5door hatchback, coupe and convertible body styles.
Fourcylinder diesel, available in 3door hatchback, 5door hatchback, coupe and convertible body styles.
Fourcylinder diesel, available in 3door hatchback, 5door hatchback, coupe and convertible body styles. Features a twin turbo design producing 204 bhp.
3.0L, sixcylinder petrol engine (N52: 218 HP), available in coupe and convertible body styles.
3.0L, sixcylinder petrol engine (N52: 230 HP), available in coupe and convertible body styles, limited to the North American market.
3.0L, sixcylinder petrol engine (N52: 265 HP), available in 3door hatchback and 5door hatchback body styles.
Sixcylinder turbocharged petrol, available in coupe and convertible body styles. According to the BMW website^{[20]} the 135i Coupé produces 302 hp (225 kW), and accelerates from 0–100 km/h (62 mph) in 5.3 seconds, however Car and Driver magazine recorded 4.7 seconds for 060 mph acceleration, and a quarter mile time of 13.3 seconds at 106 mph (171 km/h).^{[21]} Top speed is electronically limited to 250 km/h (155.3 mph). Fuel efficiency is increased to 30.7 mpg_{US} (7.7 L/100 km; 36.9 mpg_{imp}), an improvement of 18% compared to its predecessor.^{[22]}
200710 model year BMW 135i coupe/cabriolet models were equipped with the N54 biturbo inline6 engine, mated to a sixspeed manual or optional sixspeed "Steptronic" automatic transmission. For the 2011 model year onwards, the powertrain was changed to the N55 single (twinscroll) turbo inline6 (making the same horsepower and torque output, but with lower fuel consumption and quicker turbo responsiveness), paired to a sixspeed manual or optional 7speed dualclutch transmission. The shortlived 1 Series M Coupe retained the N54 biturbo inline6, albeit in a higher state of tune.
The differential fitted to the 135i is the first in the world to use doublehelical ball bearings. These bearings operate at a lower operating temperature (which can be reached more quickly), due to the reduction of fluid required in the differential.^{[23]}
Special standard features of the 135i included adaptive xenon headlights, sport suspension settings, 18" wheels, highperformance brake system (6 piston front calipers with 338mm discs, and 2 piston rear calipers with 324mm discs), and a new DSC program that improves acceleration out of corners.^{[24]}
The BMW 1 Series M Coupe ("1M Coupe") is a highperformance version of the BMW 1 Series Coupe, developed by BMW's motorsport branch BMW M. While BMW naming convention would have called the car the "M1", the name "BMW 1 Series M" was used instead, to avoid confusion with the original BMW M1.
BMW officially announced the making of the M variant of the BMW 1Series Coupé in December 2010.^{[25]}
Prior to the 1M Coupé, a bespoke engine (with a code starting with "S", for example S14, S50, S65) was used for all BMW M models. However, the 1M Coupé uses a retuned version of the twinturbocharged N54 engine which is used in various other models such as the 2011 BMW 335is coupé/covertible, 2011 BMW Z4 sDrive35is, and 2011 BMW 740i. In the 1M Coupe, the engine produces 340 PS (250 kW) at 5900 rpm and 332 lb·ft (450 N·m) torque from 1,500 to 4,500 rpm (with +369 lb·ft (500 N·m) overboost). The only available drivetrain is a sixspeed manual gearbox with a limited slip differential.
The 1M Coupé has a significantly wider track and bigger body than the standard E82 coupé, as well as a different body kit. Despite the car's larger size, it is 77 lb (35 kg) lighter than the standard E82 coupé, giving it a weight of 3,296 lb (1,495 kg).^{[26]}
BMW was originally going to release the 1M Coupé as a limited production model of 2,700 units. Due to overwhelming demand, the company lifted the cap. Nevertheless, production of the 1M Coupé stopped in June 2012, with 740 units sold in the US and a further 220 sold in Canada. Total 6309 cars sold worldwide.^{[27]}
The 1M was featured on Top Gear on 26 June 2011 and recorded a time of 1:25.0 around the Top Gear test track.^{[28]} The 1M was met in the media with enthusiastic reviews, Jeremy Clarkson likening it, as a breakthrough model, to the original Volkswagen Golf GTI.^{[29]}^{[30]} It also received "Richard Hammond's Car of the Year 2011" award in Top Gear magazine.^{[31]}
The BMW 135is was a tuned version of 135i's N55 twinscroll turbo straight six making 320 hp and 317 lbft of torque, increases of 20 and 17 versus a standard 135i. The 135is also receives an upgraded cooling system with a morepowerful radiator fan and an auxiliary radiator, plus a M Sport Body. The performance of the 135is is close to that of the limitedproduction 2011 BMW 1 Series M.^{[32]}^{[33]}
The BMW 135is (E82) coupe/cabriolet was sold only in Canada and the United States, as the European market received the nextgeneration 1 Series, the 2013 BMW M135i (F20) 3door and 5door hatchback. Despite the differences in chassis, both the 135is and M135i share the same engine, however for their optional automated transmissions the 135is has a 7speed dualclutch gearbox while the M135i has an 8speed automatic.^{[32]}^{[33]}^{[34]}
Note: production years are based on model year, not calendar year.
Model^{[35]}  Year  Engine code  Power  Torque  Acceleration 0–100 km/h 
Top speed 

116i  2004–2007  N45B16  85 kW (116 PS)  150 N·m (110 ft·lbf)  10.9 s (MT)  200 km/h (124 mph) (MT) 
20072009  N43B16  90 kW (122 PS)  160 N·m (120 ft·lbf)  10.1 s (MT) 11.1 s (AT) 
204 km/h (127 mph) (MT) 202 km/h (126 mph) (AT) 

20092011  N43B20  90 kW (122 PS)  185 N·m (136 ft·lbf)  9.9 s (MT) 
204 km/h (127 mph) (MT)  
118i  2005–2007  N46B20  95 kW (129 PS)  180 N·m (130 lb·ft)  9.4 s (MT) 10.1 s (AT) 
208 km/h (129 mph) (MT) 204 km/h (127 mph) (AT) 
2007–2011  N43B20  105 kW (143 PS)  190 N·m (140 lb·ft)  8.7 s (MT) 9.2 s (AT) 
210 km/h (130 mph) (MT) 210 km/h (130 mph) (AT) 

120i  2004–2007  N46B20  110 kW (150 PS)  200 N·m (150 lb·ft)  8.9 s (MT) 9.3 s (AT) 
212 km/h (132 mph) (MT) 208 km/h (129 mph) (AT) 
2007–2011  N43B20  125 kW (170 PS)  210 N·m (150 lb·ft)  7.8 s (MT) 8.3 s (AT) 
224 km/h (139 mph) (MT) 222 km/h (138 mph) (AT) 

125i  2008–2011  N52B30  160 kW (218 PS)^{[36]}  270 N·m (200 lb·ft)  6.4 s (MT) 7.0 s (AT) 
245 km/h (152 mph) (MT) 243 km/h (151 mph) (AT) 
128i  2008–2011  N52B30  170 kW (231 PS)  271 N·m (200 lb·ft)  5.7 s (MT)^{[37]} 6.4 s (AT) 
209 km/h (130 mph) (MT/AT) 241 km/h (150 mph) (MT/AT)(with Sport Package) 
2008–  N51B30 SULEV^{[citation needed]}  
130i  2006–2009  N52B30  195 kW (265 PS)  315 N·m (232 lb·ft)  5.5 s (MT) 6.3 s (AT) 
250 km/h (155 mph) (MT/AT)^{[20]} 
2009–2012  190 kW (258 PS)  310 N·m (230 lb·ft)  
135i  2008–2010^{[38]}  N54B30  225 kW (306 PS)  400 N·m (300 lb·ft)  4.8 s (MT) 4.7 s (AT)^{[39]} 

2011–2013 ^{[40]}  N55B30M0  4.6 s (DCT) (estimated)^{[41]} 

M  20112012  N54B30TO  250 kW (340 PS)  450 N·m (330 lb·ft)  4.3 s (MT)  249 km/h (155 mph) (MT) 
Model^{[35]}  Year  Engine code  Power  Torque  Acceleration 0–100 km/h 
Top speed 

116d  2009–2011  N47D20  85 kW (116 PS)  260 N·m (190 lb·ft)  10.3 s (MT)  201 km/h (125 mph) (MT) 
118d  2004–2007  M47TU2D20  90 kW (122 PS)  280 N·m (210 lb·ft)  10.0 s (MT)  
2007–2013  N47D20  105 kW (143 PS)  300 N·m (220 lb·ft)  8.9 s (MT) 9.0 s (AT) 
210 km/h (130 mph) (MT/AT)  
120d  2004–2007  M47TU2D20  120 kW (163 PS)  340 N·m (250 lb·ft)  7.9 s (MT) 8.2 s (AT) 
220 km/h (137 mph) (MT) 217 km/h (135 mph) (AT) 
2007–2013  N47D20  130 kW (177 PS)  350 N·m (260 lb·ft)  7.5 s (MT) 7.7 s (AT) 
228 km/h (142 mph) (MT) 226 km/h (140 mph) (AT) 

123d  2007–2013  N47D20  150 kW (204 PS)  400 N·m (300 lb·ft)  6.9 s (MT) 7.0 s (AT) 
238 km/h (148 mph) (MT) 236 km/h (147 mph) (AT) 
Honest John reports on his website: "Coil and injector problems on later 4cylinder petrol engines. Timing chain failures on N47 diesel engines becoming very common."^{[42]} The latter complaint was the subject of a BBC 'Watchdog' Consumer program in June 2013.^{[43]} The cost of repair was then a little over £4,000. BMW responded by saying that it would consider claims involving cars older than 3 years where a full BMW service history was available.
The 1 Series is built in Regensburg and Leipzig, Germany.
Sales statistics according to BMW's annual reports:^{[citation needed]}
Year  Total  5door  3door  Coupé  Cabriolet  Note 

2004  39,247  39,247        Launched in September. 
2005  149,493  149,493        
2006  151,918  151,918        
2007  165,803  133,525  30,984  1,287  7  Facelift in March. 3door version launched in May. 
2008  225,095  122,666  49,559  26,304  26,566  
2009  216,944  120,323  44,043  24,081  28,506  
2010  196,004  113,030  31,980  26,191  24,803  
2011  176,418  
2012  226,829 
« previous — BMW road car timeline, 1980s–present  

Type  Series  1980s  1990s  2000s  2010s  
0  1  2  3  4  5  6  7  8  9  0  1  2  3  4  5  6  7  8  9  0  1  2  3  4  5  6  7  8  9  0  1  2  3  4  5  
Compact  1 Series  E82 / E88  
E81 / E87  F20 / F21  
2 Series  F22 / F23  
F45  
BMW 3 Series Compact  E36/5  E46/5  
Compact executive  3 Series  E21  E30  E36  E46  E90 / E91 / E92 / E93  F30 / F31 / F35  
4 Series  F32 / F33  
F36  
Executive  5 Series  E12  E28  E34  E39  E60 / E61  F10 / F11  
Luxury  6 Series  E24  E63 / E64  F12 / F13  
F06  
7 Series  E23  E32  E38  E65 / E66 / E67 / E68  F01 / F02 / F03 / F04  
GT  8 Series  E31  
Roadster  Z Series  E30 (Z1)  E36/7 & E36/8 (Z3)  E85 / E86 (Z4)  E89 (Z4)  
M  1 Series M  E82 M  
M3  E30 M3  E36 M3  E46 M3  E90/92/93 M3  F80  
M4  F82 / F83  
M5  E28 M5  E34 M5  E39 M5  E60/61 M5  F10 M5  
M6  E24 M635CSi/M6  E63/64 M6  F06/12/13 M6  
M Roadster  E36/7 (Z3) M  E85 (Z4) M  
M Coupé  E36/8 M Coupé  E86 M Coupé  
Sports car  E26 (M1)  E52 (Z8)  
SUV  X1  E84  
X3  E83  F25  
X4  F26  
X5  E53  E70  F15  
X6  E71 / E72  F16  
PAV  3 GT  F34  
5 GT  F07  
i  i3  I01  
i8  I12 