The Alpina XD3 (F25) 3.0 Biturbo, produced from 2013 to 2014, represents a unique offering within the BMW X3 (F25) generation. Alpina, a renowned German automotive engineering company, took the already capable X3 and elevated it with significant performance and luxury enhancements. This variant, powered by a 3.0-liter inline-six diesel engine producing 350 horsepower, occupied the top performance tier of the X3 range during its production run, positioned above the standard BMW diesel offerings and approaching the performance of the gasoline-powered X3 35i. The XD3 aimed to deliver a blend of high-performance driving dynamics, refined comfort, and the efficiency expected of a diesel powertrain, catering to a discerning clientele seeking a premium SUV experience.
Technical Specifications
| Brand | Alpina |
| Model | XD3 |
| Generation | XD3 (F25) |
| Type (Engine) | 3.0 (350 Hp) BITURBO |
| Start of production | 2013 |
| End of production | 2014 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | SUV |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (urban) | 7.3 l/100 km (32.2 US mpg) |
| Fuel consumption (extra urban) | 6.2 l/100 km (37.9 US mpg) |
| Fuel consumption (combined) | 6.6 l/100 km (35.6 US mpg) |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 4.9 sec |
| Acceleration 0 – 62 mph | 4.9 sec |
| Acceleration 0 – 60 mph | 4.7 sec |
| Maximum speed | 253 km/h (157.21 mph) |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 5.5 kg/Hp |
| Weight-to-torque ratio | 2.7 kg/Nm |
| Power | 350 Hp @ 4000 rpm |
| Torque | 700 Nm @ 1500-3000 rpm (516.29 lb.-ft.) |
| Engine layout | Front, Longitudinal |
| Engine displacement | 2993 cm3 (182.64 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | Inline |
| Cylinder Bore | 84 mm (3.31 in.) |
| Piston Stroke | 90 mm (3.54 in.) |
| Compression ratio | 16.5:1 |
| Fuel injection system | Diesel Commonrail |
| Engine aspiration | Twin-Turbo, Intercooler |
| Kerb Weight | 1910 kg (4210.83 lbs.) |
| Max. weight | 2440 kg (5379.28 lbs.) |
| Max load | 530 kg (1168.45 lbs.) |
| Trunk (boot) space – minimum | 550 l (19.42 cu. ft.) |
| Trunk (boot) space – maximum | 1600 l (56.5 cu. ft.) |
| Fuel tank capacity | 67 l (17.7 US gal) |
| Length | 4647 mm (182.95 in.) |
| Width | 1901 mm (74.84 in.) |
| Height | 1670 mm (65.75 in.) |
| Wheelbase | 2810 mm (110.63 in.) |
| Front track | 1614 mm (63.54 in.) |
| Rear (Back) track | 1609 mm (63.35 in.) |
| Drive wheel | All wheel drive (4×4) |
| Number of gears | 8 |
| Gearbox type | Automatic transmission |
Powertrain & Engine Architecture
The heart of the XD3 is Alpina’s version of the BMW N57D30 engine, a 3.0-liter inline-six diesel. However, Alpina didn’t simply re-badge the BMW engine. They extensively modified it with new turbochargers, a larger intercooler, and a recalibrated engine management system. The engine utilizes a sophisticated common-rail direct injection system, delivering fuel at extremely high pressures for optimized combustion. The twin-turbocharger setup, featuring variable geometry turbines (VGTs), minimizes turbo lag and provides a broad, flat torque curve. The engine produces a substantial 700 Nm (516 lb-ft) of torque between 1500 and 3000 rpm, contributing to its impressive acceleration. The XD3 exclusively used an 8-speed automatic transmission, also sourced from BMW, but with Alpina-specific software tuning for quicker shifts and more responsive behavior. This transmission, known as the ZF 8HP, is renowned for its smoothness and efficiency.
Driving Characteristics
The XD3’s driving experience is markedly different from the standard X3 diesel models. The increased power and torque deliver a significantly quicker acceleration – 0 to 60 mph in around 4.7 seconds. The twin-turbo setup ensures minimal turbo lag, providing instant responsiveness. The 8-speed automatic transmission is well-matched to the engine’s characteristics, offering smooth and timely gear changes. While the X3 is already a capable handler, Alpina further refined the suspension with stiffer springs and dampers, resulting in reduced body roll and improved cornering stability. Despite the performance enhancements, the XD3 remained a comfortable and refined SUV, suitable for long-distance journeys. The sound of the engine, while still a diesel, was noticeably more refined and sporty than the standard X3 diesel.
Equipment & Trim Levels
The XD3 came exceptionally well-equipped as standard. Interior appointments included Alpina-specific leather upholstery, unique wood trim, and Alpina badging throughout the cabin. Standard features included a premium sound system, navigation system, heated front seats, and a panoramic sunroof. Optional extras included upgraded leather options, a rear-seat entertainment system, and various driver-assistance features. The XD3’s interior aimed for a luxurious and sporty ambiance, differentiating it from the more utilitarian feel of some X3 trims.
Chassis & Braking
The XD3 retained the X3’s all-wheel-drive system (BMW’s xDrive), providing excellent traction in all weather conditions. The suspension was modified with stiffer springs and dampers, as mentioned previously, to improve handling. Braking duties were handled by the standard X3’s braking system, featuring ventilated discs at all four corners. However, Alpina often upgraded the brake pads for improved stopping power and fade resistance. The XD3’s chassis was tuned to balance performance and comfort, offering a more engaging driving experience without sacrificing ride quality.
Market Reception & Comparison
The Alpina XD3 was generally well-received by automotive critics. Reviewers praised its impressive performance, refined ride, and luxurious interior. It was often compared to the Porsche Macan S Diesel, offering a similar blend of performance and practicality. Compared to the standard X3 diesel models (like the xDrive30d), the XD3 offered a substantial performance advantage, but at a significantly higher price point. Fuel economy, while still respectable for a performance SUV, was slightly lower than the standard X3 diesel due to the increased power output. However, the XD3’s overall refinement and exclusivity justified the premium for many buyers.
Legacy
The Alpina XD3 (F25) remains a relatively rare and sought-after vehicle in the used car market. The N57 engine, in its various iterations, is known for its durability and reliability, provided it has been properly maintained. The 8-speed automatic transmission is also considered highly reliable. However, as with any performance vehicle, regular maintenance is crucial. The XD3’s unique Alpina enhancements and limited production numbers have contributed to its increasing collectibility. It represents a compelling option for buyers seeking a high-performance, luxurious, and relatively practical SUV with a touch of exclusivity.
