The BMW 735i (E65) represented a significant step forward for BMW’s flagship sedan when it debuted in 2001, remaining in production through 2005. Part of the E65 generation, which fundamentally reshaped the 7 Series, the 735i occupied a middle ground in the lineup, offering a balance between performance and relative affordability compared to the range-topping 745i and 760i models. It was positioned as the entry-level V8 offering, appealing to buyers who desired the prestige and refinement of the 7 Series but didn’t require the ultimate power or advanced features of its more expensive siblings. The E65 generation, known for its controversial styling penned by Chris Bangle, introduced a host of technological innovations, and the 735i benefited from many of these advancements.
Technical Specifications
| Brand | BMW |
| Model | 7 Series |
| Generation | 7 Series (E65) |
| Type (Engine) | 735i (272 Hp) Steptronic |
| Start of production | 2001 |
| End of production | 2005 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 15.7 l/100 km (15 US mpg, 18 UK mpg, 6.4 km/l) |
| Fuel consumption (extra urban) | 8.4 l/100 km (28 US mpg, 33.6 UK mpg, 11.9 km/l) |
| Fuel consumption (combined) | 11.1 l/100 km (21.2 US mpg, 25.4 UK mpg, 9 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 7.5 sec |
| Acceleration 0 – 62 mph | 7.5 sec |
| Acceleration 0 – 60 mph | 7.1 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Emission standard | Euro 3 |
| Weight-to-power ratio | 6.8 kg/Hp, 146.2 Hp/tonne |
| Weight-to-torque ratio | 5.2 kg/Nm, 193.5 Nm/tonne |
| Power | 272 Hp @ 6200 rpm |
| Power per litre | 75.6 Hp/l |
| Torque | 360 Nm @ 3700 rpm (265.52 lb.-ft. @ 3700 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | N62B36 |
| Engine displacement | 3600 cm3 (219.69 cu. in.) |
| Number of cylinders | 8 |
| Engine configuration | V-engine |
| Cylinder Bore | 84 mm (3.31 in.) |
| Piston Stroke | 81.2 mm (3.2 in.) |
| Compression ratio | 10.2:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Engine oil capacity | 8 l (8.45 US qt | 7.04 UK qt) |
| Coolant | 14.1 l (14.9 US qt | 12.41 UK qt) |
| Kerb Weight | 1860 kg (4100.6 lbs.) |
| Max. weight | 2440 kg (5379.28 lbs.) |
| Max load | 580 kg (1278.68 lbs.) |
| Trunk (boot) space – minimum | 500 l (17.66 cu. ft.) |
| Fuel tank capacity | 88 l (23.25 US gal | 19.36 UK gal) |
| Length | 5029 mm (197.99 in.) |
| Width | 1902 mm (74.88 in.) |
| Height | 1492 mm (58.74 in.) |
| Wheelbase | 2990 mm (117.72 in.) |
| Front track | 1578 mm (62.13 in.) |
| Rear (Back) track | 1582 mm (62.28 in.) |
| Drag coefficient (Cd) | 0.29 |
| Minimum turning circle | 12.1 m (39.7 ft.) |
| Drivetrain Architecture | Rear wheel drive |
| Drive wheel | Rear wheel drive |
| Number of gears and type of gearbox | 6 gears, automatic transmission Steptronic |
| Front suspension | Spring Strut |
| Rear suspension | Coil spring |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Hydraulic Steering |
| Tires size | 245/55 R17 W |
| Wheel rims size | 8J x 17 |
INTRODUCTION
The BMW 735i (E65) was produced from 2001 to 2005 and served as a crucial model within the E65 7 Series range. Built on the 1HX0 platform, it aimed to deliver a luxurious and capable driving experience without the higher price tag of the 745i or 760i. The 735i was primarily marketed towards buyers in Europe and North America who sought a sophisticated sedan with a powerful V8 engine and the convenience of an automatic transmission. It represented a blend of traditional BMW values – driving dynamics, build quality, and technological innovation – packaged in a larger, more opulent form.
Powertrain & Engine Architecture
At the heart of the 735i lies the N62B36 engine, a 3.6-liter naturally aspirated V8. This engine is a significant departure from previous BMW V8s, featuring aluminum construction, double VANOS (variable valve timing), and individual throttle butterflies. The N62 engine code designates a family of V8 engines used in various BMW models during this period. The 735i’s version produced 272 horsepower at 6200 rpm and 360 Nm (265.52 lb-ft) of torque at 3700 rpm. Fuel is delivered via a multi-port fuel injection system. The engine’s architecture is longitudinal, meaning it’s mounted lengthwise in the chassis, driving the rear wheels. Paired with the N62B36 is the 6-speed Steptronic automatic transmission, BMW’s branded automatic gearbox. This transmission offered both fully automatic operation and a manual shift mode, allowing drivers to exert more control over gear selection. The Steptronic transmission was known for its smooth shifts and responsiveness.
Driving Characteristics
The 735i’s driving experience was characterized by a smooth and refined ride. While not as overtly sporty as the 745i, the 735i still offered ample power for comfortable highway cruising and confident overtaking. The 0-60 mph acceleration time of around 7.1 seconds was respectable for a large luxury sedan of its era. The Steptronic transmission contributed to a relaxed driving experience, seamlessly shifting gears to maintain optimal engine speed. Compared to the manual transmission options available on other 7 Series models, the automatic prioritized comfort and ease of use. The gear ratios were tuned for a balance between acceleration and fuel efficiency. While the N62 engine lacked the low-end torque of a turbocharged engine, it delivered a linear power delivery that was predictable and easy to manage.
Equipment & Trim Levels
The 735i came standard with a comprehensive list of features, befitting its status as a luxury sedan. Standard equipment included leather upholstery, power-adjustable front seats with memory function, automatic climate control, a premium sound system, and a sunroof. Optional extras included features like active suspension, heated seats, navigation system, and upgraded interior trim options. The interior design was characterized by a blend of wood trim, chrome accents, and high-quality materials. The dashboard layout was relatively straightforward, with a focus on ergonomics and ease of use. The 735i’s trim level sat between the base 730i (available in some markets) and the higher-spec 745i, offering a good balance of features and price.
Chassis & Braking
The E65 7 Series featured an all-aluminum chassis, contributing to its relatively lightweight construction. The 735i utilized a spring strut front suspension and a coil spring rear suspension. The suspension was tuned for comfort, providing a smooth and controlled ride. Braking duties were handled by ventilated disc brakes on all four wheels, providing ample stopping power. The 735i was equipped with ABS (Anti-lock Braking System) as standard, enhancing safety and stability during emergency braking. The steering system was a rack and pinion setup with hydraulic power assistance, offering precise and responsive steering feel.
Market Reception & Comparison
The 735i received generally positive reviews from automotive critics. It was praised for its comfortable ride, refined engine, and luxurious interior. However, the E65 generation as a whole faced criticism for its controversial styling. Compared to the 745i, the 735i offered a more affordable entry point into the 7 Series range, but it lacked the higher engine output and some of the more advanced features. Fuel economy was reasonable for a V8-powered luxury sedan, averaging around 21.2 US mpg in combined driving. Reliability was a mixed bag, with some owners reporting issues with the N62 engine, particularly related to coolant leaks and oil consumption. However, many 735i models have proven to be durable and reliable with proper maintenance.
Legacy
The BMW 735i (E65) remains a popular choice among used car buyers seeking a luxurious and capable sedan. The N62 engine, while known for some potential issues, is generally considered to be a robust and reliable powerplant when properly maintained. Parts availability is good, and the 735i offers a relatively affordable way to experience the prestige and refinement of the BMW 7 Series. Today, the E65 generation is gaining recognition as a design icon, and the 735i represents a compelling blend of luxury, performance, and value in the used car market.
