2007 Bmw 3 Series 328Xi Specs – A Comprehensive Guide
The 2007 BMW 328xi combines the legendary N52 naturally aspirated inline-six engine with the xDrive all-wheel-drive system for a balanced, all-weather driving experience. This guide provides a detailed breakdown of the mechanical data, maintenance requirements, and common issues every owner should know. Whether you are a DIY mechanic or a prospective buyer, understanding these technical details is the key to keeping this E90-generation BMW on the road.
If you have ever spent a Saturday afternoon under the hood of a German car, you know that precision is everything. You are likely looking for the 2007 bmw 3 series 328xi specs because you want to understand what makes this machine tick or how to fix a nagging oil leak. It is a car that rewards those who pay attention to the details, offering a mechanical purity that modern turbocharged cars often lack.
In this article, I will walk you through the core engine data, drivetrain configurations, and chassis dimensions that define this model. We will also dive into the practical side of ownership, including fluid capacities and the specific tools you will need for common repairs. By the end of this guide, you will have a clear roadmap for maintaining or upgrading your 328xi with confidence.
Let’s get started by looking at the heart of the vehicle: the engine and its performance capabilities. This is where the character of the 328xi truly begins, providing that smooth power delivery BMW is famous for.
The N52 Engine: Heart of the 2007 bmw 3 series 328xi specs
The 2007 model year marked a sweet spot for the 3 Series, featuring the N52B30 engine. This 3.0-liter, naturally aspirated inline-six is widely regarded by enthusiasts as one of BMW’s most reliable modern engines. Unlike its turbocharged sibling, the 335i, the 328xi focuses on linear power and longevity rather than raw speed.
The engine produces 230 horsepower at 6,500 RPM and 200 lb-ft of torque at 2,750 RPM. One of the most interesting aspects of the 2007 bmw 3 series 328xi specs is the use of a magnesium-aluminum composite engine block. This design was pioneered to save weight, but it requires specific aluminum stretch bolts that must be replaced every time they are removed.
Inside this engine, you will find Valvetronic technology and double-VANOS (variable valve timing). These systems allow the engine to “breathe” more efficiently, providing better fuel economy and throttle response. For the DIYer, this means the top end of the engine is quite complex, and keeping your oil clean is non-negotiable to prevent these sensitive solenoids from clogging.
Engine Technical Data Table
- Engine Code: N52B30
- Displacement: 2,996 cc (3.0 Liters)
- Compression Ratio: 10.7:1
- Fuel Requirement: Premium Unleaded (91+ Octane)
- Firing Order: 1-5-3-6-2-4
Drivetrain and the xDrive All-Wheel-Drive System
The “xi” in the name denotes that this 3 Series is equipped with xDrive, BMW’s intelligent all-wheel-drive system. While the standard 328i is rear-wheel drive, the 328xi uses an electronically controlled multi-plate clutch transfer case to distribute torque between the front and rear axles. In normal driving conditions, the bias is roughly 40:60, but it can shift nearly 100% of the power to either axle in milliseconds.
When reviewing the 2007 bmw 3 series 328xi specs, it is important to note the weight penalty of this system. The xDrive components add approximately 200 pounds to the vehicle’s curb weight. This affects the 0-60 mph time, which clocks in at around 7.1 seconds for the manual and 7.7 seconds for the automatic transmission.
You had two choices for transmissions in 2007: a 6-speed manual (Getrag) or a 6-speed Steptronic automatic (GM 6L45). The automatic is robust but requires a fluid and filter change every 60,000 to 80,000 miles, despite BMW’s original “lifetime fill” claim. If you notice a “shudder” during gear changes, it is often a sign that the transfer case fluid or transmission fluid is breaking down.
Transmission and Final Drive Details
- Manual Transmission: 6-speed Getrag GS6-17BG.
- Automatic Transmission: 6-speed GM GA6L45R.
- Transfer Case: ATC300 (chain-driven).
- Front Differential: 3.38 ratio (Automatic) or 3.23 (Manual).
Chassis, Suspension, and Exterior Dimensions
The 2007 328xi sits on the E90 platform (sedan) or E91 (wagon). Because it is an all-wheel-drive model, the suspension geometry differs significantly from the rear-wheel-drive models. Specifically, the 328xi has a slightly higher ride height to accommodate the front axles, and it does not come with the lower “Sport” suspension found on RWD Sport Package cars.
The front suspension uses a double-pivot strut design, while the rear features a five-link independent setup. For the DIY mechanic, this means you will encounter steel control arms in the front instead of the aluminum ones found on the 328i. When replacing bushings, always ensure you are buying parts specifically for the “xi” or “xDrive” models, as they are not interchangeable.
The exterior dimensions remain compact and athletic. The car measures 178.2 inches in length with a wheelbase of 108.7 inches. This makes it incredibly nimble in urban environments while maintaining stability on the highway. The 2007 bmw 3 series 328xi specs for wheels usually include 16-inch or 17-inch alloys, often wrapped in run-flat tires from the factory.
Key Physical Dimensions
- Curb Weight: 3,582 lbs (Sedan, Manual).
- Width: 71.5 inches.
- Height: 55.9 inches.
- Ground Clearance: 5.7 inches.
- Fuel Tank Capacity: 16.1 Gallons.
Essential Maintenance and Fluid Capacities
If you want your BMW to reach the 200,000-mile mark, you must stick to a rigorous maintenance schedule. German engineering relies on high-quality fluids to manage heat and friction. When looking at the 2007 bmw 3 series 328xi specs for maintenance, the first thing to check is your oil. The N52 engine requires BMW Longlife-01 certified synthetic oil.
The cooling system is another critical area. The 2007 328xi uses an electric water pump rather than a belt-driven one. These pumps typically fail without warning between 80,000 and 100,000 miles. I always recommend replacing the thermostat at the same time as the water pump, as they are located right next to each other and share the same labor path.
Don’t forget the driveline fluids. The front differential, rear differential, and transfer case all require specific lubricants. The transfer case, in particular, is sensitive to fluid shear. If you change your tires, ensure all four are the same brand, model, and tread depth; a difference in rolling circumference can put immense strain on the xDrive system and lead to premature failure.
Fluid and Capacity Quick-Reference
Engine Oil: 6.9 Quarts (6.5 Liters) of 5W-30 or 5W-40 Synthetic. Coolant: ~8.5 Quarts of BMW Blue (50/50 mix with distilled water). Transfer Case: ~0.6 Liters of TF 0870 (or equivalent). Brake Fluid: DOT 4 (Flush every 2 years).
Common Problems and DIY Troubleshooting
Every car has its “achilles heel,” and the 2007 328xi is no exception. Most issues are related to oil leaks and cooling components. The Valve Cover Gasket (VCG) is a frequent offender. If you smell burning oil coming through your vents, it is likely leaking onto the hot exhaust manifold. This is a labor-intensive DIY but very doable with a standard socket set.
The Oil Filter Housing Gasket (OFHG) is another common leak point. This is more dangerous because a leak here can drip oil onto the serpentine belt. If the belt gets slippery, it can slip off and actually get sucked into the front main seal of the engine, causing catastrophic internal damage. Check this area every time you change your oil.
Lastly, keep an eye on your VANOS solenoids. If the car feels sluggish or has a rough idle, these solenoids might be dirty. You can often clean them with mass airflow sensor cleaner before resorting to a full replacement. For any electrical troubleshooting, investing in a BMW-specific OBDII scanner (like a Foxwell or Carly) will save you hours of guesswork.
Top 3 Issues to Monitor
- Electric Water Pump: Sudden overheating or yellow/red dash lights.
- Blower Motor Wiring: Check for recalls regarding the wiring harness connector.
- FRM Module: The Footwell Module can fail if the battery voltage gets too low, causing light and window issues.
Tuning and Performance Upgrades
While the 328xi isn’t a race car, there are several ways to improve the driving dynamics. Since it is naturally aspirated, you won’t get massive power gains from a simple “tune” like you would on a 335i. However, a 3-stage intake manifold swap from a 330i can bump your output significantly when paired with the right software.
Suspension is the best place to spend your money. Many owners find the stock “xi” suspension a bit floaty. Upgrading to Bilstein B6 or B8 struts can firm up the ride without making it harsh. If you want to improve the steering feel, consider replacing the heavy run-flat tires with standard performance tires and carrying a mobility kit in the trunk.
For those who live in snowy climates, the 328xi is a beast with a dedicated set of winter tires. Because of the xDrive system and the balanced weight distribution, it can often out-climb larger SUVs in deep snow. Just remember that the ground clearance is still that of a sedan, so don’t try to follow any Jeeps off-road!
Frequently Asked Questions About 2007 bmw 3 series 328xi specs
What is the fuel economy of the 2007 BMW 328xi?
The EPA estimates for the 328xi are 17 mpg in the city and 25 mpg on the highway. In real-world driving, most owners see a combined average of about 20-21 mpg. Using premium fuel is essential for maintaining these figures and preventing engine knocking.
Does the 2007 328xi have a timing belt or a timing chain?
The N52 engine uses a timing chain. Unlike a belt, the chain is designed to last the life of the engine. However, the plastic chain guides can become brittle over very high mileages (usually well over 150k miles), so listening for any “slapping” sounds from the front of the engine is a good habit.
Can I use regular 87 octane gas in my 328xi?
While the car’s computer can retard the timing to prevent immediate damage, using 87 octane will result in decreased power and lower fuel efficiency. Over time, it can lead to carbon buildup on the valves. Stick to 91 octane or higher to keep the N52 running smoothly.
How much oil does the 2007 BMW 328xi take?
The 2007 328xi requires 6.9 quarts (6.5 liters) of synthetic oil. Note that this engine does not have a traditional dipstick. You must check the oil level through the iDrive menu or the on-dash computer once the engine is at operating temperature.
Final Thoughts on the 2007 bmw 3 series 328xi specs
The 2007 BMW 328xi remains a fantastic entry point into the world of European cars. It offers a blend of mechanical engagement and luxury that is hard to find in newer, more digitized vehicles. By understanding the 2007 bmw 3 series 328xi specs and staying ahead of the common maintenance items like the water pump and oil gaskets, you can enjoy a premium driving experience for many years.
For the DIYer, this car is a masterclass in logical (if sometimes cramped) engineering. Every bolt has a torque spec, and every fluid has a purpose. Take your time, use the right tools—like a thin-walled 14mm spark plug socket—and don’t be afraid to get your hands dirty. These cars were built to be driven, and they respond beautifully to proper care.
Stay safe on the road, keep an eye on those coolant temps, and enjoy the smooth pull of that inline-six. Happy wrenching!
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