2007 Bmw 328Xi Specs – A Complete Performance And Maintenance Guide
The 2007 BMW 328xi combines the legendary N52 naturally aspirated inline-six engine with the confidence of xDrive all-wheel drive. This guide breaks down the essential performance data, fluid capacities, and common mechanical quirks that every owner or DIY mechanic needs to know.
Finding a car that balances hydraulic steering feel with modern safety is a challenge for many enthusiasts today. You likely appreciate the mechanical purity of the E90 generation but want to ensure your vehicle stays reliable for years to come. Understanding the 2007 bmw 328xi specs is the first step in mastering this balance of performance and utility.
I promise to provide you with a detailed breakdown of everything from engine output to specific torque settings for your next weekend project. We will preview the drivetrain’s unique requirements, common leak points to watch for, and how to optimize your xDrive system for peak performance.
By the end of this article, you will have a professional-grade understanding of your BMW’s capabilities and its maintenance needs. Let’s dive into the technical heart of this all-weather ultimate driving machine.
The Heart of the Machine: N52 Engine Performance
The 2007 328xi is powered by the N52B30 engine, which is widely considered one of BMW’s most reliable modern powerplants. Unlike its turbocharged siblings, this 3.0-liter inline-six relies on Valvetronic technology and a magnesium-aluminum composite block to deliver smooth, linear power.
The engine produces 230 horsepower at 6,500 RPM and 200 lb-ft of torque at 2,750 RPM. This low-end torque is crucial for the xDrive system, allowing the car to pull away from a stop with authority even in adverse weather conditions.
One unique aspect of this engine is its electric water pump. While it reduces parasitic drag on the engine, it is a known failure point that you should monitor closely after the 80,000-mile mark to avoid overheating.
Valvetronic and VANOS Systems
The N52 uses VANOS (variable valve timing) on both the intake and exhaust sides. This system optimizes the engine’s breathing across the entire rev range, ensuring you have power whenever you need to merge onto a highway.
If you notice a rough idle or a “limp mode” warning, the VANOS solenoids are often the first place to look. Cleaning or replacing these solenoids is a straightforward DIY task that can restore lost performance in under an hour.
Always use high-quality synthetic oil meeting BMW LL-01 specifications. Proper lubrication is vital for the small oil passages within the VANOS system to function correctly over the long term.
Drivetrain and the xDrive All-Wheel-Drive System
The “xi” designation indicates that this model features BMW’s xDrive intelligent all-wheel-drive system. Unlike older mechanical AWD systems, xDrive uses an electronically controlled multi-plate clutch in the transfer case to shift torque between the front and rear axles.
In normal driving, the system favors a rear-biased 40:60 split to maintain that classic BMW handling feel. However, it can direct nearly 100% of the torque to either axle in milliseconds if it detects wheel slip.
When reviewing the 2007 bmw 328xi specs, it is important to note that the xDrive system adds weight. The sedan version weighs approximately 3,582 lbs, which is about 200 lbs more than the rear-wheel-drive 328i.
Transmission Options: Manual vs. Automatic
BMW offered a 6-speed manual transmission and a 6-speed Steptronic automatic. The manual transmission provides a more connected driving experience, while the automatic is excellent for daily commuting in heavy traffic.
If you have the automatic, it is likely a GM GA6L45R unit. Despite BMW’s “lifetime fluid” claim, most experienced technicians recommend changing the transmission fluid and filter every 60,000 to 75,000 miles to ensure longevity.
For the DIYer, changing the transfer case fluid is a critical but often overlooked maintenance item. You will need a scan tool to reset the wear integrators in the computer after the fluid swap is complete.
2007 bmw 328xi specs: Dimensions, Weight, and Capacity
Knowing the exact measurements of your vehicle is essential for everything from garage fitment to buying the right replacement parts. The E90 328xi sedan sits on a 108.7-inch wheelbase, providing a stable platform for high-speed cruising and spirited cornering.
The overall length of the sedan is 178.2 inches, with a width of 71.5 inches. These compact dimensions make it an agile choice for city driving, yet it still offers a respectable 12 cubic feet of trunk space for weekend gear.
Fuel capacity is 15.9 gallons, and BMW recommends using premium unleaded fuel (91 octane or higher). Using lower octane fuel can lead to engine knocking and reduced fuel efficiency as the computer pulls timing to protect the engine.
Fluid Capacities for the DIY Mechanic
- Engine Oil: 6.9 Quarts (6.5 Liters) of 5W-30 or 5W-40 Synthetic.
- Coolant: Approximately 8.5 Quarts (8.0 Liters) of a 50/50 mix of BMW Blue Coolant and distilled water.
- Front Differential: 0.6 Quarts (0.6 Liters) of 75W-90 Synthetic Gear Oil.
- Rear Differential: 1.1 Quarts (1.0 Liters) of 75W-90 Synthetic Gear Oil.
- Transfer Case: 0.5 Quarts (0.47 Liters) of BMW DTF 1 (TF0870).
Always double-check your owner’s manual, as some 2007 bmw 328xi specs regarding fluid types can vary slightly based on the production month. Using the wrong fluid in the transfer case can lead to “shuddering” during low-speed turns.
When working under the car, always use sturdy jack stands and never rely on a floor jack alone. The E90 chassis has specific central jacking points that make it easier to get the whole car in the air safely.
Common Maintenance Challenges and Troubleshooting
Owning a 2007 328xi means staying ahead of a few well-known “BMW leaks.” The most common culprit is the Oil Filter Housing Gasket (OFHG). If this leaks, oil can drip onto the serpentine belt, causing it to slip off and potentially get sucked into the engine through the front crank seal.
The Valve Cover Gasket is another frequent leaker. You will often smell burning oil coming through the vents when the oil drips onto the hot exhaust manifold. Replacing this requires patience and a good set of E-Torx sockets.
Don’t forget the Cooling System. The plastic expansion tank and various “quick-connect” hoses tend to become brittle over time. A proactive refresh of these components every 100,000 miles can prevent a catastrophic roadside breakdown.
Suspension and Steering Components
The xDrive models use a different front suspension setup than the RWD models. You will find CV axles in the front, which have rubber boots that can tear. Check these boots during every oil change for signs of grease spray.
The front control arm bushings, often called thrust arm bushings, are filled with hydraulic fluid. When they leak or tear, you will feel a shimmy in the steering wheel under braking. Upgrading to solid rubber bushings can improve steering response.
Check your power steering fluid reservoir. The E90 uses a specific hydraulic fluid (often Pentosin CHF 11S), and using standard ATF can damage the seals in the steering rack. Always verify the cap color before topping off.
Performance Modifications and Off-Road Capability
While the 328xi isn’t a dedicated off-roader, its AWD system makes it a favorite for overlanding enthusiasts who want a “safari-style” build. Increasing the ground clearance slightly and adding all-terrain tires can make this a formidable winter warrior.
For street performance, focus on the 3-stage intake manifold from the 330i model. This is a direct bolt-on for the 328xi and, when paired with a software tune, can bump your horsepower closer to 260. It is one of the best “bang-for-your-buck” mods for the N52 engine.
Upgrading the rear anti-roll bar is another popular modification. The factory bar is quite thin to encourage understeer for safety. A thicker bar will help the car rotate better in corners, making the AWD system feel more neutral.
Tire Selection for xDrive
The xDrive system is very sensitive to tire circumference. If the difference in rolling diameter between the front and rear tires is more than 1%, it can put excessive stress on the transfer case. This is why many owners stick to a “square” tire setup.
If you decide to run a staggered setup (wider tires in the rear), you must carefully calculate the sidewall heights to ensure the diameters match. Using a tire size calculator is a mandatory step before clicking “buy” on a new set of rubber.
For those living in snowy climates, a set of dedicated winter tires transforms the 328xi. The combination of xDrive and proper winter compounds makes this car nearly unstoppable on icy roads, provided you have the ground clearance.
Buyer’s Guide: What to Look for in a Used 328xi
If you are in the market for a 2007 328xi, service records are your best friend. Look for evidence that the water pump and thermostat have been replaced recently. If they haven’t been touched in 100k miles, factor that cost into your offer.
Check the eccentric shaft sensor connector for oil. Pull the plastic engine cover and unplug the circular sensor near the front of the valve cover. If there is oil inside the plug, the sensor’s internal seal has failed, which is an expensive repair.
Test the AWD system by performing a few tight, low-speed circles in a parking lot. If you feel a binding or jerking sensation, the transfer case fluid might be old, or the transfer case motor might be failing. This is a common point of negotiation.
Interior and Electrical Health
The 2007 model year was early in the E90’s life, so check the window regulators. If the windows move slowly or make a grinding noise, the plastic clips are likely about to snap. It is a common but annoying fix for DIYers.
Inspect the battery and charging system. BMWs of this era are very sensitive to voltage drops. If the battery is weak, you may see a “Christmas tree” of warning lights on the dashboard that aren’t actually related to mechanical failures.
Finally, ensure the sunroof drains are clear. If they clog, water can back up into the cabin and damage the expensive electronic modules located under the carpet. Feel the floor mats for any signs of dampness or musty smells.
Frequently Asked Questions About 2007 bmw 328xi specs
What is the 0-60 mph time for the 2007 BMW 328xi?
With the manual transmission, the 328xi can reach 60 mph in approximately 6.9 to 7.1 seconds. The automatic version is slightly slower, typically clocking in around 7.4 seconds due to the extra weight and drivetrain power loss.
Does the 2007 328xi have a timing belt or a timing chain?
The N52 engine uses a timing chain, which is designed to last the life of the engine. Unlike cars with timing belts, you do not need to replace it as part of regular maintenance, provided you perform frequent oil changes.
What are the most common wheel sizes for this model?
The standard wheel size was 16×7 inches, but many came with 17-inch alloys as part of the Sports Package. When looking at 2007 bmw 328xi specs for wheels, the bolt pattern is 5×120 with a 72.6mm center bore.
Is the 2007 328xi expensive to maintain?
If you take it to a dealership, yes. However, for a DIY mechanic, parts are widely available and relatively affordable. Staying on top of oil leaks and cooling system health is the key to keeping long-term costs manageable.
Final Thoughts on the 328xi Experience
The 2007 BMW 328xi remains a fantastic entry point into the world of European performance cars. It offers a refined driving experience that few modern cars can replicate, thanks to its hydraulic steering and naturally aspirated engine. By understanding the specific requirements of the xDrive system and the N52 powerplant, you can enjoy this car for many years.
Remember that maintenance is always cheaper than repair. Use high-quality parts, follow the torque specifications, and don’t be afraid to get your hands dirty. Whether you are commuting through a blizzard or carving up a mountain road, this car is built to handle it all with grace and power.
Stay safe on the road, keep your tools organized, and enjoy every mile behind the wheel of your E90. Your 328xi is more than just a spec sheet; it is a precision instrument that rewards a dedicated owner. Happy wrenching!
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