The Alpina D3 Coupe (E92) 2.0D Biturbo, produced between 2008 and 2013, represents a unique offering within the BMW E92 3-Series coupe range. Alpina, a renowned German automotive engineering company, took the standard 3-Series and elevated it with performance enhancements, luxurious appointments, and distinctive styling. This particular variant, powered by a 2.0-liter turbocharged diesel engine producing 214 horsepower, occupied a niche position – offering a blend of efficiency, respectable performance, and Alpina’s signature refinement. It served as a more economical and subtly sporty alternative to the higher-performance gasoline-powered Alpina D3 variants and the standard BMW 335i coupe.
Technical Specifications
| Brand | Alpina |
| Model | D3 |
| Generation | D3 Coupe (E92) |
| Type (Engine) | 2.0D Biturbo (214 Hp) Switch-Tronic |
| Start of production | 2008 |
| End of production | 2013 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Coupe |
| Seats | 4 |
| Doors | 2 |
| Fuel consumption (economy) – urban (NEDC) | 8.2 l/100 km (28.7 US mpg, 34.4 UK mpg, 12.2 km/l) |
| Fuel consumption (economy) – extra urban (NEDC) | 4.8 l/100 km (49 US mpg, 58.9 UK mpg, 20.8 km/l) |
| Fuel consumption (economy) – combined (NEDC) | 6.0 l/100 km (39.2 US mpg, 47.1 UK mpg, 16.7 km/l) |
| CO2 emissions (NEDC) | 159 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 6.9 sec |
| Acceleration 0 – 62 mph | 6.9 sec |
| Acceleration 0 – 60 mph | 6.6 sec |
| Maximum speed | 244 km/h (151.61 mph) |
| Emission standard | Euro 4 |
| Weight-to-power ratio | 7 kg/Hp, 143.6 Hp/tonne |
| Weight-to-torque ratio | 3.3 kg/Nm, 302 Nm/tonne |
| Power | 214 Hp @ 4100 rpm |
| Power per litre | 107.3 Hp/l |
| Torque | 450 Nm @ 2000 rpm (331.9 lb.-ft. @ 2000 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | Alpina N1 |
| Engine displacement | 1995 cm3 (121.74 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 84 mm (3.31 in.) |
| Piston Stroke | 90 mm (3.54 in.) |
| Compression ratio | 16:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Diesel Commonrail |
| Engine aspiration | BiTurbo, Intercooler |
| Valvetrain | DOHC |
| Engine oil capacity | 5.2 l (5.49 US qt | 4.58 UK qt) |
| Kerb Weight | 1490 kg (3284.89 lbs.) |
| Max. weight | 1970 kg (4343.11 lbs.) |
| Max load | 480 kg (1058.22 lbs.) |
| Trunk (boot) space – minimum | 440 l (15.54 cu. ft.) |
| Fuel tank capacity | 61 l (16.11 US gal | 13.42 UK gal) |
| Permitted trailer load with brakes (12%) | 1600 kg (3527.4 lbs.) |
| Permitted trailer load without brakes | 745 kg (1642.44 lbs.) |
| Length | 4580 mm (180.31 in.) |
| Width | 1782 mm (70.16 in.) |
| Height | 1395 mm (54.92 in.) |
| Wheelbase | 2760 mm (108.66 in.) |
| Front track | 1503 mm (59.17 in.) |
| Rear (Back) track | 1512 mm (59.53 in.) |
| Drivetrain Architecture | Rear wheel drive |
| Drive wheel | Rear wheel drive |
| Number of gears and type of gearbox | 6 gears, automatic transmission |
| Front suspension | Spring Strut |
| Rear suspension | Coil spring |
| Front brakes | Ventilated discs, 370 mm |
| Rear brakes | Ventilated discs, 345 mm |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Tires size | Front wheel tires: 245/40 R18 Rear wheel tires: 265/40 R18 |
| Wheel rims size | Front wheel rims: 8J x 18 Rear wheel rims: 9J x 18 |
Powertrain & Engine Architecture
At the heart of the D3 Coupe 2.0d Biturbo lies the Alpina N1 engine, based on the BMW N47 diesel engine. However, Alpina extensively modified the engine with two Garrett GT28 turbochargers, a larger intercooler, and a revised engine management system. These upgrades resulted in a significant power increase over the standard N47. The engine utilizes a common rail direct injection system, delivering fuel at extremely high pressure for optimized combustion. The 16:1 compression ratio is typical for diesel engines, contributing to thermal efficiency. The DOHC (Double Overhead Camshaft) valvetrain ensures precise control of the four valves per cylinder. The “Switch-Tronic” transmission is a ZF 6HP21 automatic gearbox, specifically tuned by Alpina for smoother shifts and quicker response. It offers a manual shift mode for more driver involvement.
Driving Characteristics
The 214 horsepower and 450 Nm (331 lb-ft) of torque provide brisk acceleration, with a 0-60 mph time of around 6.6 seconds. While not as explosively quick as the gasoline-powered Alpina D3 variants, the 2.0d Biturbo offers a strong mid-range punch, making it well-suited for everyday driving and overtaking maneuvers. The automatic transmission, while smooth, isn’t as aggressively geared as some performance-focused transmissions. This results in a more relaxed driving experience, prioritizing comfort over outright speed. Compared to the manual transmission versions, the automatic offers convenience but slightly diminishes the sense of driver engagement. The diesel engine’s torque characteristics mean less frequent gear changes are needed, contributing to a more effortless cruising experience.
Equipment & Trim Levels
The Alpina D3 Coupe 2.0d Biturbo came generously equipped. Standard features included leather upholstery, sports seats, a premium sound system, automatic climate control, and Alpina-specific exterior and interior styling cues. These included unique Alpina badging, a distinctive front spoiler, rear spoiler, and Alpina alloy wheels. Optional extras included a sunroof, navigation system, and upgraded interior trim options. The interior typically featured Alpina’s signature wood trim and bespoke instrument cluster with Alpina branding. The overall ambiance was one of understated luxury and sporting refinement.
Chassis & Braking
The D3 Coupe retained the standard BMW E92 coupe’s chassis, but Alpina made subtle modifications to the suspension. These included stiffer springs and dampers, and a thicker stabilizer bar, to improve handling and reduce body roll. The braking system featured ventilated discs all around – 370mm at the front and 345mm at the rear – providing ample stopping power. ABS (Anti-lock Braking System) was standard. The suspension setup aimed to strike a balance between sporty handling and comfortable ride quality.
Market Reception & Comparison
The Alpina D3 Coupe 2.0d Biturbo was generally well-received by automotive critics. It was praised for its blend of performance, efficiency, and luxury. Fuel economy was a significant selling point, with combined figures around 39.2 US mpg. Compared to the more powerful Alpina D3 3.0d, the 2.0d offered a more affordable entry point into the Alpina brand. It also provided better fuel economy than the gasoline-powered 335i coupe, while still delivering respectable performance. Reliability was generally good, although diesel particulate filter (DPF) issues could occur with infrequent long-distance driving.
Legacy
The Alpina D3 Coupe 2.0d Biturbo remains a desirable used car today, particularly for those seeking a unique and refined coupe. The Alpina N1 engine is known for its durability, provided it has been properly maintained. The Switch-Tronic transmission is also generally reliable. However, potential buyers should be aware of the possibility of DPF issues and ensure regular servicing has been carried out. The car represents a compelling alternative to the standard BMW 3-Series coupe, offering a distinctive blend of performance, luxury, and exclusivity. Its relative rarity and unique character contribute to its enduring appeal among enthusiasts.
