Technical Specifications
| Brand | BMW |
| Model | 5 Series |
| Generation | 5 Series Touring (E61 LCI, facelift 2007) |
| Type (Engine) | 550i (367 Hp) Steptronic |
| Start of production | 2007 |
| End of production | 2010 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Station wagon (estate) |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (economy) – urban | 16.1 l/100 km (14.6 US mpg, 17.5 UK mpg, 6.2 km/l) |
| Fuel consumption (economy) – extra urban | 7.5 l/100 km (31.4 US mpg, 37.7 UK mpg, 13.3 km/l) |
| Fuel consumption (economy) – combined | 10.7 l/100 km (22 US mpg, 26.4 UK mpg, 9.3 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 5.4 sec |
| Acceleration 0 – 62 mph | 5.4 sec |
| Acceleration 0 – 60 mph | 5.1 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Emission standard | Euro 4 |
| Weight-to-power ratio | 4.8 kg/Hp, 208.5 Hp/tonne |
| Weight-to-torque ratio | 3.6 kg/Nm, 278.4 Nm/tonne |
| Power | 367 Hp @ 6300 rpm |
| Power per litre | 76.5 Hp/l |
| Torque | 490 Nm @ 3400 rpm (361.41 lb.-ft. @ 3400 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | N62B48B |
| Engine displacement | 4799 cm3 (292.85 cu. in.) |
| Number of cylinders | 8 |
| Engine configuration | V-engine |
| Cylinder Bore | 93 mm (3.66 in.) |
| Piston Stroke | 88.3 mm (3.48 in.) |
| Compression ratio | 10.5:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | DOHC |
| Engine oil capacity | 8 l (8.45 US qt | 7.04 UK qt) |
| Kerb Weight | 1760 kg (3880.14 lbs.) |
| Max. weight | 2320 kg (5114.72 lbs.) |
| Max load | 560 kg (1234.59 lbs.) |
| Trunk (boot) space – minimum | 500 l (17.66 cu. ft.) |
| Trunk (boot) space – maximum | 1650 l (58.27 cu. ft.) |
| Fuel tank capacity | 70 l (18.49 US gal | 15.4 UK gal) |
| Length | 4843 mm (190.67 in.) |
| Width | 1846 mm (72.68 in.) |
| Height | 1491 mm (58.7 in.) |
| Wheelbase | 2888 mm (113.7 in.) |
| Front track | 1558 mm (61.34 in.) |
| Rear (Back) track | 1581 mm (62.24 in.) |
| Ride height (ground clearance) | 143 mm (5.63 in.) |
| Drag coefficient (Cd) | 0.29 |
| Minimum turning circle (turning diameter) | 11.4 m (37.4 ft.) |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the rear wheels of the vehicle. |
| Drive wheel | Rear wheel drive |
| Number of gears and type of gearbox | 6 gears, automatic transmission |
| Front brakes | Ventilated discs |
| Rear brakes | Disc |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Tires size | 225/50 R17 Y |
| Wheel rims size | 17 |
The E61 5 Series Touring, launched in 2004, was BMW’s second attempt at a modern, premium wagon based on the 5 Series platform. The LCI (Life Cycle Impulse) facelift in 2007 brought revised styling, updated technology, and refined engine options. The 550i Touring, powered by the naturally aspirated 4.8-liter N62B48B V8 engine and paired with a six-speed Steptronic automatic transmission, was the range-topping variant. It offered a compelling blend of performance, luxury, and practicality, appealing to buyers who needed the space of a wagon but didn’t want to compromise on driving enjoyment. Production of the E61 Touring concluded in 2010, replaced by the F11 5 Series Touring.
Powertrain & Engine Architecture
The heart of the 550i Touring is the N62B48B engine, a 4.8-liter naturally aspirated V8. This engine features an aluminum alloy block and cylinder heads, double overhead camshafts (DOHC) with four valves per cylinder, and BMW’s Double-VANOS variable valve timing system for both intake and exhaust. Fuel is delivered via multi-port fuel injection. The N62 engine is known for its smooth power delivery and distinctive V8 sound. The six-speed Steptronic automatic transmission, a conventional torque-converter automatic, was specifically tuned to handle the engine’s substantial torque output. It offered both fully automatic operation and a manual shift mode, allowing drivers to exert more control over gear selection. The transmission’s programming prioritized smooth shifts and comfortable cruising, but could also deliver relatively quick downshifts when needed.
Driving Characteristics
The 550i Touring’s combination of a powerful V8 and a well-sorted automatic transmission resulted in impressive performance. Acceleration from 0 to 60 mph took approximately 5.1 seconds, and the car felt strong and responsive in all driving situations. While the automatic transmission wasn’t as quick-shifting as some of the dual-clutch transmissions available in other BMW models, it provided a smooth and refined driving experience. The gear ratios were optimized for both acceleration and highway cruising. Compared to the six-cylinder 530i Touring, the 550i offered a significant performance advantage, with noticeably quicker acceleration and a more authoritative feel. The increased weight of the V8 engine did slightly impact handling agility, but the E61’s well-tuned suspension and precise steering still provided a confident and engaging driving experience.
Equipment & Trim Levels
The 550i Touring came standard with a comprehensive list of features, including leather upholstery, power-adjustable front seats with memory function, automatic climate control, a premium sound system, and BMW’s iDrive infotainment system. Common options included a navigation system, adaptive cruise control, active steering, and a panoramic sunroof. Interior trim options ranged from wood veneers to aluminum accents. The standard exterior features included alloy wheels, fog lights, and a rear spoiler. The LCI facelift brought subtle styling updates, including revised headlights and taillights, as well as a more modern interior design.
Chassis & Braking
The E61 Touring utilized BMW’s proven chassis design, featuring a MacPherson strut front suspension and an integral rear axle. The suspension was tuned to provide a balance between comfort and handling. The 550i Touring typically came equipped with larger brakes than the lower-trim models, featuring ventilated discs at all four corners and ABS (Anti-lock Braking System). The standard wheel size was 17 inches, although larger wheels were available as an option. The steering system was a rack-and-pinion setup with hydraulic power assistance, providing precise and responsive steering feel.
Market Reception & Comparison
The 550i Touring was generally well-received by automotive critics, who praised its powerful engine, comfortable ride, and spacious interior. However, some reviewers noted that the fuel economy was relatively poor, and the price was significantly higher than that of the six-cylinder models. Compared to the 530i Touring, the 550i offered a substantial performance upgrade, but at a considerable cost. The diesel-powered 535d Touring offered comparable torque and better fuel economy, making it a popular choice for buyers who prioritized efficiency. The 550i Touring appealed to a niche market of buyers who wanted the ultimate combination of performance and practicality in a luxury wagon.
Legacy
The N62 V8 engine, while known for its smoothness and power, has a reputation for requiring careful maintenance, particularly regarding cooling system components. The plastic thermostat housing and water pump are prone to failure, and regular inspection and replacement are recommended. The six-speed Steptronic automatic transmission is generally reliable, but fluid changes should be performed according to BMW’s recommended service intervals. Today, the E61 550i Touring represents a relatively rare and desirable classic BMW. Well-maintained examples command a premium in the used car market, appealing to enthusiasts who appreciate the combination of performance, luxury, and practicality that this unique wagon offers.
